HARRIS TR-0056-E M7300, 136-174MHz, 110W User Manual 1
HARRIS CORPORATION M7300, 136-174MHz, 110W 1
  
    HARRIS   >  
Contents
- 1. User Manual 1
 - 2. User Manual 2
 
User Manual 1

Rhein Tech Laboratories, Inc. Client: Harris Corporation 
360 Herndon Parkway Model: M7300 VHF 
Suite 1400 IDs: OWDTR-0056-E/3636B-0056 
Herndon, VA 20170                                                                                                       Standards:  FCC Part 90/IC RSS-119 
http://www.rheintech.com Report #:  2011200 
    89 of 104 
Appendix N:  Manual 
Please refer to the following pages for the Operators Manual and WRDVHSDUDWHILOHIRUthe Installation/Safety Manual. 

Operator’s Manual 
MM-014716-001 
Rev. J, Jan/12 
M7300 Series 
Mobile Radios 

MM-014716-001, Rev. J  
2 
MANUAL REVISION HISTORY 
REV DATE REASON FOR CHANGE 
-  Jun/08 Initial Release. 
A  Sep/08 Added quick buttons, error messages, keypad lock/unlock, client mode, new CH-721 key maps, 
updated keypad commands, and updated status call and status alert messages. 
B  Mar/09 Updated Table 8-2 and updated CH-721 graphic to remove M/A-COM. 
C  Sep/09 Added new antennas to Table 2-1, added VHF MPE distances, added “Enable/Disable Volume 
Side Tone,” updated to Harris format. 
D  Apr/10 Added keypad lock/unlock instructions for ECP, added REGISTER and BND SCAN to P25T 
status messages. 
E  Jan/11 Updated antenna information; other minor updates. 
F  Apr/11 Updated for OTP R17, consolidated EDACS, Conventional, P25 operation into one section. 
G  Aug/11 Updated antennas; removed reference to ambient light sensor, minor edits. 
H  Oct/11 Added Part 80 information. 
J  Jan/12 Updated antennas and updated warranty. 
Harris Corporation, Public Safety and Professional Communications (PSPC) Business continually evaluates its technical publications for 
completeness, technical accuracy, and organization. You can assist in this process by submitting your comments and suggestions to the 
following: 
Harris Corporation fax your comments to: 1-434-455-6851 
PSPC Business or 
Technical Publications  e-mail us at:  PSPC_TechPubs@harris.com 
221 Jefferson Ridge Parkway 
Lynchburg, VA 24501 ACKNOWLEDGEMENT 
This device is made under license under one or more of the following US patents: 4,590,473; 4,636,791; 5,148,482; 5,185,796; 5,271,017; 
5,377,229; 4,716,407; 4,972,460; 5,502,767; 5,146,497; 5,164,986; 5,185,795; 5,226,084; 5,247,579; ; 5,491,772; 5,517,511; 5,630,011; 
5,649,050; 5,701,390; 5,715,365; 5,754,974; 5,826,222; 5,870,405; 6,161,089; and 6,199,037 B1.  DVSI claims certain rights, including 
patent rights under aforementioned U.S. patents, and under other U.S. and foreign patents and patents pending.  Any use of this software or 
technology requires a separate written license from DVSI. CREDITS 
EDACS, OpenSky, Harris, VIDA, and assuredcommunications are registered trademarks of Harris Corporation.  
AMBE is a registered trademark and IMBE, AMBE+, and AMBE+2 are trademarks of Digital Voice Systems, Inc. 
All other brand and product names are trademarks, registered trademarks, or service marks of their respective holders. 
NOTICE! 
The material contained herein is subject to U.S. export approval. No export or re-export is permitted without written approval from the U.S. 
Government. Rated: EAR99; in accordance with U.S. Dept. of Commerce regulations 15CFR774, Export Administration Regulations. 
Information and descriptions contained herein are the property of Harris Corporation. Such information and descriptions may not be copied 
or reproduced by any means, or disseminated or distributed without the express prior written permission of Harris Corporation, PSPC 
Division, 221 Jefferson Ridge Parkway, Lynchburg, VA 24501. 
Repairs to this equipment should be made only by an authorized service technician or facility designated by the supplier. Any repairs, 
alterations or substitutions of recommended parts made by the user to this equipment not approved by the manufacturer could void the 
user's authority to operate the equipment in addition to the manufacturer's warranty. 
This product conforms to the European Union WEEE Directive 2002/96/EC.  Do not dispose of this product in a public 
landfill. Take it to a recycling center at the end of its life. 
This manual is published by Harris Corporation without any warranty. Improvements and changes to this manual necessitated by 
typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by 
Harris 
Corporation at any time a
nd without notice. Such changes will be incorporated into new editions of this manual. No part of this manual 
may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, 
for any 
purpose, without the express written permission of Harris Corporation. 
Copyright © 2008-2012 Harris Corporation.  

 MM-014716-001, Rev. J 
3 
TABLE OF CONTENTS 
Page 
1 SAFETY SYMBOL CONVENTION .................................................................................................... 8 
2 RF ENERGY EXPOSURE INFORMATION ..................................................................................... 9 
2.1 RF ENERGY EXPOSURE AWARENESS, CONTROL INFORMATION, AND OPERATION 
INSTRUCTIONS FOR FCC OCCUPATIONAL USE REQUIREMENTS ................................ 9 
2.2 FEDERAL COMMUNICATIONS COMMISSION REGULATIONS ....................................... 9 
2.3 COMPLIANCE WITH RF EXPOSURE STANDARDS ........................................................... 10 
2.3.1 Mobile Antennas (Vehicle Installations) ....................................................................... 10 
2.3.2 Mobile Antennas (Motorcycle Installations) ................................................................. 15 
2.3.3 Approved Accessories ................................................................................................... 16 
2.3.4 Contact Information ....................................................................................................... 16 
2.4 REGULATORY APPROVALS ................................................................................................. 16 
2.4.1 Part 15 ............................................................................................................................ 16 
2.4.2 Industry Canada ............................................................................................................. 16 
3 OPERATION SAFETY RECOMMENDATIONS ............................................................................ 17 
3.1 TRANSMITTER HAZARDS ..................................................................................................... 17 
3.2 SAFE DRIVING RECOMMENDATIONS ................................................................................ 17 
4 OPERATING RULES AND REGULATIONS .................................................................................. 18 
5 OPERATING TIPS .............................................................................................................................. 18 
6 MARINE FREQUENCIES .................................................................................................................. 19 
7 PRODUCT DESCRIPTION ................................................................................................................ 25 
8 CHANGE OPERATING MODE (700/800 MHZ RADIOS ONLY) ................................................ 26 
8.1 CHANGE FROM OTP MODE ................................................................................................... 26 
8.2 CHANGE TO OTP MODE......................................................................................................... 26 
9 OPENSKY OPERATION (700/800 MHZ RADIOS ONLY) ............................................................ 27 
9.1 CH-721 FRONT PANEL COMPONENTS ................................................................................ 27 
9.2 POWER UP AND VOLUME CONTROL ................................................................................. 29 
9.2.1 Power Up ....................................................................................................................... 29 
9.2.2 Volume Control ............................................................................................................. 29 
9.3 SELF-TEST ................................................................................................................................. 29 
9.4 LOGIN TO THE NETWORK .................................................................................................... 29 
9.5 LOG OFF THE NETWORK....................................................................................................... 30 
9.6 TURN THE RADIO OFF ........................................................................................................... 30 
9.7 MENU DISPLAY AND CONTROL AREA .............................................................................. 30 
9.8 RADIO STATUS ICONS ........................................................................................................... 31 
9.9 DWELL DISPLAY ..................................................................................................................... 31 
9.10 ERROR MESSAGES .................................................................................................................. 31 
9.11 PERSONALITY ......................................................................................................................... 33 
9.11.1 Profiles ........................................................................................................................... 33 
9.11.2 Talk Groups ................................................................................................................... 34 
9.12 ALERT TONES .......................................................................................................................... 35 
9.13 BASIC MENU STRUCTURE .................................................................................................... 36 
9.14 DUAL-TONE MULTI-FREQUENCY ....................................................................................... 38 
9.15
KEYPAD..................................................................................................................................... 38

MM-014716-001, Rev. J  
4 
TABLE OF CONTENTS 
Page 
9.15.1
Keypad Commands (System Model Control Head) ...................................................... 38
9.15.2 Quick Buttons (System Model Only) ............................................................................ 39 
9.15.3 Keypad Lock/Unlock ..................................................................................................... 39 
9.15.4 Password Entry .............................................................................................................. 39 
9.15.5 DTMF Overdial ............................................................................................................. 39 
9.16 CHANGE THE ACTIVE PROFILE ........................................................................................... 40 
9.17 ENABLE/DISABLE VOLUME SIDE TONE ............................................................................ 40 
9.18 CHECK OR CHANGE THE SELECTED TALK GROUP ....................................................... 40 
9.19 ADJUST DISPLAY AND BUTTON BACKLIGHT BRIGHTNESS ........................................ 40 
9.20 STEALTH MODE ...................................................................................................................... 40 
9.20.1 Enable Stealth Mode ...................................................................................................... 41 
9.20.2 Disable Stealth Mode ..................................................................................................... 41 
9.21 ADJUST SIDE TONE AUDIO LEVEL ..................................................................................... 41 
9.22 CHANGE OPERATING MODE ................................................................................................ 42 
9.23 RECEIVE AND TRANSMIT VOICE CALLS .......................................................................... 42 
9.23.1 Receive a Voice Call ..................................................................................................... 42 
9.23.2 Transmit a Voice Call .................................................................................................... 43 
9.24 ADJUST AUDIO TREBLE LEVEL .......................................................................................... 43 
9.25 INTERCOM MODE ................................................................................................................... 43 
9.26 TALK GROUP LOCK OUT ....................................................................................................... 44 
9.26.1 Lock Out a Talk Group .................................................................................................. 44 
9.26.2 Unlock a Talk Group ..................................................................................................... 45 
9.27 SCANNING ................................................................................................................................ 45 
9.27.1 Check or Change Active Scan Mode ............................................................................. 46 
9.27.2 Scan Priority .................................................................................................................. 46 
9.27.3 Change Priority 1 and Priority 2 Talk Groups ............................................................... 46 
9.28 MAKE SELECTIVE CALLS ..................................................................................................... 46 
9.28.1 Manually Dial a Selective Call (System Model Control Head) ..................................... 47 
9.28.2 Speed Dial a Selective Call ............................................................................................ 47 
9.28.3 Receive a Selective Call ................................................................................................ 48 
9.28.4 Terminate a Selective Call ............................................................................................. 48 
9.29 SELECTIVE ALERT .................................................................................................................. 48 
9.29.1 Send Selective Alert Messages ...................................................................................... 48 
9.29.2 Receive Messages .......................................................................................................... 49 
9.29.3 Define Pre-Programmed Messages ................................................................................ 50 
9.30 TELEPHONE INTERCONNECT CALLS (SYSTEM MODEL CONTROL HEAD) .............. 50 
9.30.1 Place an Interconnect Call ............................................................................................. 50 
9.30.2 Receive an Interconnect Call ......................................................................................... 50 
9.31 EMERGENCY COMMUNICATIONS ...................................................................................... 51 
9.31.1 Declare an Emergency Call or Alert .............................................................................. 51 
9.31.2 Silent Emergency ........................................................................................................... 51 
9.31.3 Clear an Emergency Call or Alert.................................................................................. 52 
9.31.4 Receive an Emergency Call ........................................................................................... 52 
9.31.5 Dismiss an Emergency Call ........................................................................................... 53 
9.32 ENCRYPTION ........................................................................................................................... 53 
9.32.1 Automatic Encryption .................................................................................................... 53 
9.32.2 Manual Encryption (System Model).............................................................................. 54 
9.33
PRESET BUTTONS ................................................................................................................... 55

 MM-014716-001, Rev. J 
5 
TABLE OF CONTENTS 
Page 
9.34
STATUS MESSAGES ................................................................................................................ 55
9.34.1 Send Status Message via the Keypad (System Model Only) ......................................... 55 
9.34.2 Send Status Message via the Menu ............................................................................... 55 
9.35 REQUEST TO TALK (RTT) MESSAGES ................................................................................ 56 
9.35.1 Send RTT Message via the Keypad (System Model Radios Only) ............................... 56 
9.35.2 Send RTT Message via the Menu .................................................................................. 56 
9.36 DYNAMIC REGROUPING ....................................................................................................... 56 
9.37 GPS COORDINATES ................................................................................................................ 57 
9.38 SCENE-OF-INCIDENT MODE ................................................................................................. 57 
10 EDACS/CONVENTIONAL/P25 (ECP) OPERATION .................................................................... 59 
10.1 TURN THE RADIO ON ............................................................................................................. 59 
10.2 CH-721 FRONT PANEL COMPONENTS ................................................................................ 59 
10.3 KEYPAD LOCK/UNLOCK ....................................................................................................... 61 
10.4 RADIO STATUS ICONS ........................................................................................................... 61 
10.5 MESSAGES ................................................................................................................................ 62 
10.6 ALERT TONES .......................................................................................................................... 64 
10.7 MENU ......................................................................................................................................... 65 
10.8 FEATURE ENCRYPTION DISPLAY ....................................................................................... 66 
10.8.1 Serial Number ROM (12 Hex Digits) ............................................................................ 67 
10.8.2 Feature Encryption Data Stream .................................................................................... 67 
10.8.3 Features Enabled ............................................................................................................ 68 
10.9 SYSTEM/GROUP/CHANNEL SELECTION............................................................................ 68 
10.9.1 System Selection ............................................................................................................ 69 
10.9.2 Group and Channel Selection ........................................................................................ 69 
10.10 LAST SYSTEM/GROUP/CHANNEL RECALL ....................................................................... 69 
10.11 ENCRYPTION ........................................................................................................................... 70 
10.11.1 Displaying the Currently Used Cryptographic Key Number ......................................... 70 
10.11.2 Key Zero ........................................................................................................................ 70 
10.11.3 Receive an Encrypted Call............................................................................................. 70 
10.11.4 Transmit an Encrypted Call ........................................................................................... 71 
10.12 MACRO KEY OPERATION ..................................................................................................... 71 
10.13 RECEIVE A CALL ..................................................................................................................... 71 
10.14 TRANSMIT A CALL ................................................................................................................. 71 
10.15 CONVENTIONAL FAILSOFT (EDACS) ................................................................................. 72 
10.16 EMERGENCY OPERATION .................................................................................................... 72 
10.16.1 Receive an Emergency Call ........................................................................................... 72 
10.16.2 Declare an Emergency ................................................................................................... 72 
10.17 SYSTEM SCAN OPERATION (EDACS AND P25 TRUNKED) ............................................ 73 
10.17.1 Wide Area System Scan (WA Scan) ............................................................................. 73 
10.17.2 ProScan™ ...................................................................................................................... 73 
10.17.3 Priority System Scan ..................................................................................................... 73 
10.17.4 When Wide Area System Scan is Enabled .................................................................... 73 
10.17.5 When ProScan Is Enabled ............................................................................................. 74 
10.17.6 Menu Selection .............................................................................................................. 74 
10.17.7 Pre-Programmed Keypad Key ....................................................................................... 74 
10.18 SCAN OPERATION .................................................................................................................. 74 
10.18.1 Add Groups or Channels to a Scan List ......................................................................... 74 

MM-014716-001, Rev. J  
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TABLE OF CONTENTS 
Page 
10.18.2
Delete Groups or Channels from a Scan List ................................................................ 75
10.18.3 Nuisance Delete ............................................................................................................. 75 
10.18.4 Turn Scan On ................................................................................................................. 75 
10.18.5 Priority Group/Channel Scanning .................................................................................. 76 
10.18.6 Turn Scan Off ................................................................................................................ 76 
10.19 INDIVIDUAL CALLS (EDACS AND P25 MODES) ............................................................... 76 
10.19.1 Receive and Respond to an Individual Call ................................................................... 76 
10.19.2 Call Storage Lists ........................................................................................................... 77 
10.19.3 Send an Individual Call ................................................................................................. 77 
10.20 SCAT™ OPERATION ............................................................................................................... 78 
10.21 TELEPHONE INTERCONNECT CALLS (EDACS AND P25) ............................................... 78 
10.21.1 Receive a Telephone Interconnect Call ......................................................................... 78 
10.21.2 Send a Telephone Interconnect Call .............................................................................. 78 
10.21.3 DTMF Overdial/Conventional Mode Telephone Interconnect ...................................... 79 
10.21.4 Programmable Entries ................................................................................................... 79 
10.22 MOBILE DATA (EDACS AND P25 TRUNKED) .................................................................... 80 
10.22.1 Displays ......................................................................................................................... 80 
10.22.2 DATA OFF Operation ................................................................................................... 80 
10.22.3 DATA ON Operation .................................................................................................... 80 
10.22.4 Exiting Data Calls .......................................................................................................... 81 
10.22.5 Scan Lockout Mode ....................................................................................................... 81 
10.22.6 Data Lockout Mode ....................................................................................................... 81 
10.23 STATUS/MESSAGE OPERATION (EDACS AND P25 TRUNKED) ..................................... 82 
10.23.1 Status Operation ............................................................................................................ 82 
10.23.2 Message Operation ........................................................................................................ 82 
10.24 EDACS CONVENTIONAL P1 SCAN ...................................................................................... 83 
10.25 DYNAMIC REGROUP OPERATION (EDACS) ...................................................................... 83 
10.26 PAGE (P25 TRUNKED ONLY) ................................................................................................ 83 
10.27 SQUELCH ADJUST (CONVENTIONAL) ............................................................................... 83 
10.27.1 Menu Selection .............................................................................................................. 84 
10.27.2 Pre-Programmed Keypad Key ....................................................................................... 84 
10.28 TYPE 99 DECODE (ANALOG CONVENTIONAL) ................................................................ 84 
10.28.1 Menu Selection .............................................................................................................. 85 
10.28.2 Pre-Programmed Keypad Key ....................................................................................... 85 
10.29 TALK-AROUND (ANALOG CONVENTIONAL) ................................................................... 85 
11 BASIC TROUBLESHOOTING .......................................................................................................... 86 
12 CUSTOMER SERVICE ...................................................................................................................... 87 
12.1 CUSTOMER CARE ................................................................................................................... 87 
12.2 TECHNICAL ASSISTANCE ..................................................................................................... 87 
13 KEYPAD REMAPPING ...................................................................................................................... 88 
14 RADIO SETUP ..................................................................................................................................... 89 

 MM-014716-001, Rev. J 
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TABLE OF CONTENTS 
Page 
FIGURES 
Figure 9-1: System Model ....................................................................................................................... 27 
Figure 9-2: Scan Model ........................................................................................................................... 27 
Figure 9-3: Typical Display ..................................................................................................................... 31 
Figure 9-4: Personality Structure Example ............................................................................................. 34 
Figure 10-1: System Model ..................................................................................................................... 59 
Figure 10-2: Scan Model ......................................................................................................................... 59 
Figure 10-3: Typical Display ................................................................................................................... 61 
TABLES 
Table 2-1: Rated Power and Recommended Minimum Safe Lateral Distance (Vehicle 
Installation) ........................................................................................................................... 10 
Table 2-2: Rated Power and Recommended Minimum Safe Lateral Distance (Motorcycle 
Installations) .......................................................................................................................... 15 
Table 6-1: Marine Frequencies ................................................................................................................ 19 
Table 9-1: Front Panel Default Controls and Functions .......................................................................... 28 
Table 9-2: Icons and Descriptions ........................................................................................................... 31 
Table 9-3: M7300 OpenSky Mode Alert Tones ...................................................................................... 35 
Table 9-4: Basic Menu Structure ............................................................................................................. 36 
Table 9-5: Keypad Function Commands ................................................................................................. 38 
Table 9-6: Quick Button Functions ......................................................................................................... 39 
Table 9-7: Scan Modes ............................................................................................................................ 45 
Table 9-8: Status of Selective Call .......................................................................................................... 47 
Table 9-9: Status of Selective Alert ......................................................................................................... 49 
Table 10-1: Front Panel Default Controls and Functions ........................................................................ 60 
Table 10-2: Icons and Descriptions ......................................................................................................... 61 
Table 10-3: Radio Messages ................................................................................................................... 62 
Table 10-4: Alert Tones ........................................................................................................................... 64 
Table 10-5: Menu Item Information ........................................................................................................ 65 
Table 10-6: Available Feature Numbers ................................................................................................. 68 
Table 10-7: Current Cryptographic Key Display .................................................................................... 70 
Table 11-1: Basic Troubleshooting ......................................................................................................... 86 

MM-014716-001, Rev. J  
8 
1  SAFETY SYMBOL CONVENTION 
The following conventions are used throughout this manual to alert the user to general safety precautions 
that must be observed during all phases of operation, service, and repair of this product. Failure to comply 
with these precautions or with specific warnings elsewhere in this manual violates safety standards of 
design, manufacture, and intended use of the product. Harris Corporation assumes no liability for the 
customer’s failure to comply with these standards. 
WARNING
The WARNING symbol calls attention to a procedure, practice, or the like, which, 
if not correctly performed or adhered to, could result in personal injury.  Do not 
proceed beyond a WARNING symbol until the conditions identified are fully 
understood or met.  
CAUTION
The CAUTION symbol calls attention to an operating procedure, practice, or the like, 
which, if not performed correctly or adhered to, could result in a risk of danger, damage 
to the equipment, or severely degrade the equipment performance. 
NOTE
The  NOTE 
symbol calls attention to supplemental information, which may improve 
system performance or clarify a process or procedure. 
The ESD 
symbol calls attention to procedures, practices, or the like, which could expose 
equipment to the effects of Electro-Static Discharge. Proper precautions must be taken 
to prevent ESD when handling circuit modules. 

 MM-014716-001, Rev. J 
9 
2  RF ENERGY EXPOSURE INFORMATION 
2.1 RF ENERGY EXPOSURE AWARENESS, CONTROL INFORMATION, 
AND OPERATION INSTRUCTIONS FOR FCC OCCUPATIONAL USE 
REQUIREMENTS 
Before using your mobile two-way radio, read this important RF energy awareness and control 
information and operational instructions to ensure compliance with the FCC’s RF exposure 
guidelines. 
NOTE
This radio is intended for use in occupational/controlled conditions, where users have full 
knowledge of their exposure and can exercise control over their exposure to meet FCC 
limits. This radio device is NOT authorized for general population, consumer, or any 
other use. 
CAUTION
Changes or modifications not expressly approved by Harris Corporation could void the 
user's authority to operate the equipment. 
This two-way radio uses electromagnetic energy in the radio frequency (RF) spectrum to provide 
communications between two or more users over a distance. It uses RF energy or radio waves to send and 
receive calls. RF energy is one form of electromagnetic energy. Other forms include, but are not limited 
to, electric power, sunlight, and x-rays. RF energy, however, should not be confused with these other 
forms of electromagnetic energy, which, when used improperly, can cause biological damage. Very high 
levels of x-rays, for example, can damage tissues and genetic material. 
Experts in science, engineering, medicine, health, and industry work with organizations to develop 
standards for exposure to RF energy. These standards provide recommended levels of RF exposure for 
both workers and the general public. These recommended RF exposure levels include substantial margins 
of protection. All two-way radios marketed in North America are designed, manufactured, and tested to 
ensure they meet government established RF exposure levels. In addition, manufacturers also recommend 
specific operating instructions to users of two-way radios. These instructions are important because they 
inform users about RF energy exposure and provide simple procedures on how to control it. Please refer 
to the following websites for more information on what RF energy exposure is and how to control your 
exposure to assure compliance with established RF exposure limits. 
http://www.fcc.gov/oet/rfsafety/rf-faqs.html 
http://www.osha.gov./SLTC/radiofrequencyradiation/index.html 
2.2 FEDERAL COMMUNICATIONS COMMISSION REGULATIONS 
Your Harris Corporation M7300 mobile two-way radio is designed and tested to comply with the FCC RF 
energy exposure limits for mobile two-way radios before it can be marketed in the United States. When 
two-way radios are used as a consequence of employment, the FCC requires users to be fully aware of 
and able to control their exposure to meet occupational requirements.  Exposure awareness can be 
facilitated by the use of a label directing users to specific user awareness information.  Your Harris 
Corporation M7300 two-way radio has an RF exposure product label. Also, the M7300 Installation and 
Operator’s Manuals include information and operating instructions required to control your RF exposure 
and to satisfy compliance requirements. 

MM-014716-001, Rev. J  
10 
2.3 COMPLIANCE WITH RF EXPOSURE STANDARDS 
Your Harris Corporation M7300 mobile two-way radio is designed and tested to comply with a number of 
national and international standards and guidelines (listed below) regarding human exposure to RF 
electromagnetic energy.  This radio complies with the IEEE and ICNIRP exposure limits for 
occupational/controlled RF exposure environment at duty factors of up to 50% talk-50% listen and is 
authorized by the FCC for occupational use. In terms of measuring RF energy for compliance with the 
FCC exposure guidelines, your radio antenna radiates measurable RF energy only while it is transmitting 
(talking), not when it is receiving (listening) or in standby mode. 
Your Harris Corporation M7300 mobile two-way radio complies with the following RF energy exposure 
standards and guidelines: 
• United States Federal Communications Commission (FCC), Code of Federal Regulations; 47 CFR §§ 
2 sub-part J. 
• American National Standards Institute (ANSI)/Institute of Electrical and Electronic Engineers (IEEE) 
C95.1-2005. 
• Institute of Electrical and Electronic Engineers (IEEE) C95.1-2005. 
• IC standard RSS-102, Issue 2, 2005: “Spectrum Management and Telecommunications Radio 
Standards Specification.  Radiofrequency Exposure Compliance of Radiocommunication Apparatus 
(All Frequency Bands). 
CAUTION
Table 2-1 lists the recommended minimum lateral distance for a controlled environment 
and for unaware bystanders in an uncontrolled environment, from transmitting types of 
antennas (i.e., monopoles over a ground plane, or dipoles) at rated radio power for 
mobile radios installed in a vehicle. Transmit only when unaware bystanders are at least 
the uncontrolled recommended minimum lateral distance away from the transmitting 
antenna. 
2.3.1 Mobile Antennas (Vehicle Installations) 
Table 2-1: Rated Power and Recommended Minimum Safe Lateral Distance (Vehicle Installation) 
MOBILE RADIO 
FREQUENCY 
SPLIT 
ANTENNA PART 
NUMBER DESCRIPTION 
R
SAFE
CONTROLLED 
ENVIRONMENT 
(CM) 
R
SAFE
UNCONTROLLED 
ENVIRONMENT 
(CM) 
700/800 MHz AN-025167-001 
(Discontinued) 700/800 MHz Standard 
Rooftop-Mount; 3 dBd Gain 
28 69 
700/800 MHz AN-025167-002 
(Discontinued) 700/800 MHz Elevated-Feed 
Rooftop-Mount; 3 dBd Gain 
700/800 MHz AN-025167-004 
(Discontinued) 700/800 MHz GPS Combo 
Rooftop-Mount; 3 dBd Gain 
700/800 MHz AN-025167-005 
(Discontinued) 
700/800 MHz GPS Combo 
Elevated-Feed Rooftop-
Mount; 3 dBd Gain 
700/800 MHz AN-025167-006 
(Discontinued) 
700/800 MHz Magnetic-
Mount; 
3 dBd Gain 29 72 

 MM-014716-001, Rev. J 
11 
MOBILE RADIO 
FREQUENCY 
SPLIT 
ANTENNA PART 
NUMBER DESCRIPTION 
R
SAFE
CONTROLLED 
ENVIRONMENT 
(CM) 
R
SAFE
UNCONTROLLED 
ENVIRONMENT 
(CM) 
700/800 MHz AN-025167-010 
(Discontinued) 700/800 MHz Low-Profile 
Rooftop-Mount; 2 dBd Gain 
28 69 
700/800 MHz AN-025167-011 
(Discontinued) 
700/800 MHz GPS Combo 
Low-Profile Rooftop-Mount; 
2 dBd Gain 
700/800 MHz AN-025167-014 
(Discontinued) 700/800 MHz Standard 
Rooftop-Mount; 5 dBd Gain 39 87 
700/800 MHz AN-025167-015 
(Discontinued) 700/800 MHz GPS Combo 
Rooftop-Mount; 5 dBd Gain 
700/800 MHz AN-125001-002 (mount) 
with AN-225001-001 
(element) 
700/800 MHz Standard 
Rooftop-Mount; 
3 dBd Gain 
25 55 
700/800 MHz AN-125001-002 (mount) 
with AN-225001-002 
(element) 
700/800 MHz Standard 
Rooftop-Mount; 
Elevated-Feed 3 dBd Gain 
700/800 MHz AN-125001-002 (mount) 
with AN-225001-003 
(element) 
700/800 MHz Standard 
Rooftop-Mount; 
Elevated-Feed 3 dBd Gain 
700/800 MHz AN-125001-002 (mount) 
with AN-225001-004 
(element) 
700/800 MHz Standard  
Rooftop-Mount; 
Low-Profile 2 dBd Gain 
700/800 MHz AN-125001-002 (mount) 
with AN-225001-005 
(element) 
700/800 MHz Standard 
Rooftop-Mount; 
5 dBd Gain  30 60 
700/800 MHz AN-125001-004 (mount) 
with AN-225001-001 
(element) 
700/800 MHz Thick 
Rooftop-Mount; 
3 dBd Gain 
25 55 
700/800 MHz AN-125001-004 (mount) 
with AN-225001-002 
(element) 
700/800 MHz Thick 
Rooftop-Mount; 
Elevated-Feed 3 dBd Gain 
700/800 MHz AN-125001-004 (mount) 
with AN-225001-003 
(element) 
700/800 MHz Thick 
Rooftop-Mount; 
Elevated-Feed 3 dBd Gain 
700/800 MHz AN-125001-004 (mount) 
with AN-225001-004 
(element) 
700/800 MHz Thick  
Rooftop-Mount; 
Low-Profile 2 dBd Gain 
700/800 MHz AN-125001-004 (mount) 
with AN-225001-005 
(element) 
700/800 MHz Thick 
Rooftop-Mount; 
5 dBd Gain 30 60 

MM-014716-001, Rev. J  
12 
MOBILE RADIO 
FREQUENCY 
SPLIT 
ANTENNA PART 
NUMBER DESCRIPTION 
R
SAFE
CONTROLLED 
ENVIRONMENT 
(CM) 
R
SAFE
UNCONTROLLED 
ENVIRONMENT 
(CM) 
700/800 MHz AN-125001-006 (mount) 
with AN-225001-001 
(element) 
700/800 MHz GPS Combo 
Rooftop-Mount; 
5.15 dBi Gain 
25 55 
700/800 MHz AN-125001-006 (mount) 
with AN-225001-002 
(element) 
700/800 MHz GPS Combo 
Rooftop-Mount; 
Elevated-Feed 3 dBd Gain 
700/800 MHz AN-125001-006 (mount) 
with AN-225001-003 
(element) 
700/800 MHz GPS Combo 
Rooftop-Mount; 
Elevated-Feed 3 dBd Gain 
700/800 MHz AN-125001-006 (mount) 
with AN-225001-004 
(element) 
700/800 MHz GPS Combo  
Rooftop-Mount; 
Low-Profile 2 dBd Gain 
700/800 MHz AN-125001-006 (mount) 
with AN-225001-005 
(element) 
700/800 MHz GPS Combo 
Rooftop-Mount; 
7.15 dBi Gain 30 60 
700/800 MHz AN-125001-008 (mount) 
with AN-225001-001 
(element) 
700/800 MHz Magnetic-
Mount; 
3 dBd Gain 
25 55 
700/800 MHz AN-125001-008 (mount) 
with AN-225001-002 
(element) 
700/800 MHz Magnetic-
Mount; 
Elevated-Feed 3 dBd Gain 
700/800 MHz AN-125001-008 (mount) 
with AN-225001-003 
(element) 
700/800 MHz Magnetic-
Mount; 
Elevated-Feed 3 dBd Gain 
700/800 MHz AN-125001-008 (mount) 
with AN-225001-004 
(element) 
700/800 MHz Magnetic-
Mount; 
Low-Profile 2 dBd Gain 
700/800 MHz AN-125001-008 (mount) 
with AN-225001-005 
(element) 
700/800 MHz Magnetic-
Mount; 
5 dBd Gain 30 60 
700/800 MHz STI-Co CCAS-SB-700  
760 - 820 MHz Concealed 
Peal-and-Stick Internal-
Mount; 
0 dBi Gain 
20 50 
VHF (50 W) 
AN-125001-001 
(mount) with 
AN-225002-001 
(element) 
136 to 174 MHz, 
Standard Rooftop-Mount; 
0 dBd Gain 63 140 
VHF (50 W) 
AN-125001-001 
(mount) with 
AN-225006-001 
(element) 
132 to 960 MHz,* 
Standard Rooftop-Mount; 
0 dBd Gain 63 140 
VHF (50 W) 
AN-125001-003 
(mount) with 
AN-225002-001 
(element) 
136 to 174 MHz, 
Thick Rooftop-Mount; 
0 dBd Gain 63 140 
VHF (50 W) 
AN-125001-003 
(mount) with 
AN-225006-001 
(element) 
132 to 960 MHz, 
Thick Rooftop-Mount; 
0 dBd Gain* 63 140 

 MM-014716-001, Rev. J 
13 
MOBILE RADIO 
FREQUENCY 
SPLIT 
ANTENNA PART 
NUMBER DESCRIPTION 
R
SAFE
CONTROLLED 
ENVIRONMENT 
(CM) 
R
SAFE
UNCONTROLLED 
ENVIRONMENT 
(CM) 
VHF (50 W) 
AN-125001-005 
(mount) with 
AN-225002-001 
(element) 
136 to 174 MHz, 
GPS Combo Standard 
Rooftop- 
Mount; 0 dBd Gain 
63 140 
VHF (50 W) 
AN-125001-007 
(mount) with 
AN-225002-001 
(element) 
136 to 174 MHz, 
Magnetic-Mount; 
0 dBd Gain 63 140 
VHF (50 W) 
AN-125001-007 
(mount) with 
AN-225006-001 
(element) 
132 to 960 MHz,* 
Magnetic-Mount; 
0 dBd Gain 63 140 
VHF (110 W) 
AN-125001-001 
(mount) with 
AN-225002-001 
(element) 
136 to 174 MHz, 
Standard Rooftop-Mount; 
0 dBd Gain 93 208 
VHF (110 W) 
AN-125001-001 
(mount) with 
AN-225006-001 
(element) 
132 to 960 MHz,* 
Standard Rooftop-Mount; 
0 dBd Gain 93 208 
VHF (110 W) 
AN-125001-003 
(mount) with 
AN-225002-001 
(element) 
136 to 174 MHz, 
Thick Rooftop-Mount; 
0 dBd Gain 93 208 
VHF (110 W) 
AN-125001-003 
(mount) with 
AN-225006-001 
(element) 
132 to 960 MHz, 
Thick Rooftop-Mount; 
0 dBd Gain* 93 208 
VHF (110 W) 
AN-125001-005 
(mount) with 
AN-225002-001 
(element) 
136 to 174 MHz, 
GPS Combo Standard 
Rooftop- 
Mount; 0 dBd Gain 
93 208 
VHF (110 W) 
AN-125001-007 
(mount) with 
AN-225002-001 
(element) 
136 to 174 MHz, 
Magnetic-Mount; 
0 dBd Gain 93 208 
VHF (110 W) 
AN-125001-007 
(mount) with 
AN-225006-001 
(element) 
132 to 960 MHz,* 
Magnetic-Mount; 
0 dBd Gain 93 208 
UHF 
440-512 MHz 
AN-125001-001 (mount) 
with AN-225004-001 
(element) 
450 to 512 MHz Standard 
Rooftop-Mount; 
0 dBd Gain 51 114 
UHF 
440-512 MHz 
AN-125001-001 (mount) 
with AN-225004-004 
(element) 
450 to 512 MHz Standard  
Rooftop-Mount; 
Low-Profile 0 dBd Gain 51 114 
UHF 
440-512 MHz 
AN-125001-003 (mount) 
with AN-225004-001 
(element) 
450 to 512 MHz Thick 
Rooftop-Mount; 
0 dBd Gain 51 114 
UHF 
440-512 MHz 
AN-125001-003 (mount) 
with AN-225004-004 
(element) 
450 to 512 MHz Thick  
Rooftop-Mount; 
Low-Profile 0 dBd Gain 51 114 

MM-014716-001, Rev. J  
14 
MOBILE RADIO 
FREQUENCY 
SPLIT 
ANTENNA PART 
NUMBER DESCRIPTION 
R
SAFE
CONTROLLED 
ENVIRONMENT 
(CM) 
R
SAFE
UNCONTROLLED 
ENVIRONMENT 
(CM) 
UHF 
440-512 MHz 
AN-125001-005 (mount) 
with AN-225004-001 
(element) 
450 to 512 MHz GPS 
Combo 
Rooftop-Mount; 
0 dBd Gain 
51 114 
UHF 
440-512 MHz 
AN-125001-005 (mount) 
with AN-225004-004 
(element) 
450 to 512 MHz GPS 
Combo  
Rooftop-Mount; 
Low-Profile 0 dBd Gain 
51 114 
UHF 
440-512 MHz 
AN-125001-007 (mount) 
with AN-225004-001 
(element) 
450 to 512 MHz Magnetic-
Mount; 
0 dBd Gain 51 114 
UHF 
440-512 MHz 
AN-125001-007 (mount) 
with AN-225004-004 
(element) 
450 to 512 MHz Magnetic-
Mount; 
Low-Profile 0 dBd Gain 51 114 
UHF 
440-512 MHz AN102800V1 
136 to 941 MHz, ¼-
Wavelength, Standard 
Rooftop-Mount; 
0 dBd Gain 
51 114 
UHF 
378-430 MHz 
AN-125001-001 (mount) 
with AN-225003-001 
(element) 
378-430 MHz Standard 
Rooftop-Mount; 
0 dBd Gain 54 120 
UHF 
378-430 MHz 
AN-125001-001 (mount) 
with AN-225003-004 
(element) 
378-430 MHz Standard  
Rooftop-Mount; 
Low-Profile 0 dBd Gain 54 120 
UHF 
378-430 MHz 
AN-125001-003 (mount) 
with AN-225003-001 
(element) 
378-430 MHz Thick 
Rooftop-Mount; 
0 dBd Gain 54 120 
UHF 
378-430 MHz 
AN-125001-003 (mount) 
with AN-225003-004 
(element) 
378-430 MHz Thick  
Rooftop-Mount; 
Low-Profile 0 dBd Gain 54 120 
UHF 
378-430 MHz 
AN-125001-005 (mount) 
with AN-225003-001 
(element) 
378-430 MHz GPS Combo 
Rooftop-Mount; 
0 dBd Gain 54 120 
UHF 
378-430 MHz 
AN-125001-005 (mount) 
with AN-225003-004 
(element) 
378-430 MHz GPS Combo  
Rooftop-Mount; 
Low-Profile 0 dBd Gain 54 120 
UHF 
378-430 MHz 
AN-125001-007 (mount) 
with AN-225003-001 
(element) 
378-430 MHz Magnetic-
Mount; 
0 dBd Gain 54 120 
UHF 
378-430 MHz 
AN-125001-007 (mount) 
with AN-225003-004 
(element) 
378-430 MHz Magnetic-
Mount; 
Low-Profile 0 dBd Gain 54 120 
UHF 
378-430 MHz AN102800V1 
136 to 941 MHz, ¼-
Wavelength, Standard 
Rooftop-Mount; 
0 dBd Gain 
54 120 
*  Driven element must be trimmed to proper lengths in order to minimize antenna system VSWR. 

 MM-014716-001, Rev. J 
15 
NOTE
The low-
split UHF M7300 mobile radio covers the 378 to 430 MHz band. However, 
per FCC regulations, the lowest allowed transmit frequency is 406.1 MHz. 
Install the radio’s antenna (refer to Table 2-1 for applicable antenna part numbers) in the center of the 
vehicle’s roof. These mobile antenna installation guidelines are limited to metal body motor vehicles or 
vehicles with appropriate ground planes. The antenna installation should additionally be in accordance 
with the following: 
• The requirements of the antenna manufacturer/supplier included with the antenna. 
• Instructions in the M7300 Radio Installation Manual, including minimum antenna cable lengths. 
• The installation manual providing specific information of how to install the antennas to facilitate 
recommended operating distances to all potentially exposed persons. 
Use only the Harris Corporation approved/supplied antenna(s) or approved replacement antenna. 
Unauthorized antennas, modifications, or attachments could damage the radio and may violate FCC 
regulations. 
2.3.2 Mobile Antennas (Motorcycle Installations) 
Table 2-2: Rated Power and Recommended Minimum Safe Lateral Distance 
(Motorcycle Installations) 
MOBILE RADIO 
FREQUENCY 
SPLIT 
ANTENNA PART 
NUMBER DESCRIPTION 
R
SAFE
CONTROLLED 
ENVIRONMENT 
(CM) 
R
SAFE
UNCONTROLLED 
ENVIRONMENT 
(CM) 
800 MHz LE-OM806HDBK/TNCDS Antenna, 800 MHZ, Black 
Base, Standard Coax  
28 72 
VHF LE-OM150K.125/TNC Antenna, 136-174 MHz, 
Black Base, 0.125 Whip 
53 118 
700/800 MHz 
AN-125001-006 (mount) 
with 
AN-225001-003 
(element) 
700/800 MHz GPS Combo; 
No-Ground-Plane (NGP); 
3 dBd / 5.15 dBi Gain 50 50 
CAUTION
A radio intended for a motorcycle installation must be configured to not exceed a 
transmit output power of 20 watts. Refer to the Installation Manual for additional 
information. 
When the later installation kit is employed (which uses antenna element AN-
225001-003), the coaxial cable between the radio and the base of the antenna 
mount cannot be shorter than 44 inches (111.8 centimeters). Refer to the 
Installation Manual for additional information. 
A radio intended for a non-motorcycle installation should not be used in a 
motorcycle installation unless it is reprogrammed per the procedures presented in 
the Installation Manual. 

MM-014716-001, Rev. J  
16 
2.3.3 Approved Accessories 
This radio has been tested and meets the FCC RF guidelines when used with the Harris Corporation 
accessories supplied or designated for use with this product. Use  of other accessories may not ensure 
compliance with the FCC’s RF exposure guidelines, and may violate FCC regulations. 
For a list of approved accessories refer to the product manuals, the Products and Services Catalog, or 
contact Harris Corporation at 1-800-368-3277. 
2.3.4 Contact Information 
For additional information on exposure requirements or other information, contact Harris Corporation at 
1-800-528-7711 or at www.pspc.harris.com. 
2.4 REGULATORY APPROVALS 
2.4.1 Part 15 
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:  
1. This device may not cause harmful interference, and  
2. This device must accept any interference received, including interference that may cause undesired 
operation. 
2.4.2 Industry Canada 
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the 
following two conditions: (1) this device may not cause interference, and (2) this device must accept any 
interference, including interference that may cause undesired operation of the device. 
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de 
licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de 
brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le 
brouillage est susceptible d'en compromettre le fonctionnement. 

 MM-014716-001, Rev. J 
17 
3  OPERATION SAFETY RECOMMENDATIONS 
3.1 TRANSMITTER HAZARDS 
WARNING
The operator of any mobile radio should be aware of certain hazards common to 
the operation of vehicular radio transmitters. A list of several possible hazards is 
given: 
• Explosive Atmospheres – Just as it is dangerous to fuel a vehicle with the motor running, similar 
hazards exist when operating a mobile radio. Be sure to turn the radio off while fueling a vehicle. Do 
not carry containers of fuel in the trunk of a vehicle if the radio is mounted in the trunk. 
Areas with potentially explosive atmosphere are often, but not always, clearly marked. Turn off your 
radio when in any area with a potentially explosive atmosphere. It is rare, but not impossible that the 
radio or its accessories could generate sparks. 
• Interference to Vehicular Electronics Systems – Electronic fuel injection systems, electronic anti-
skid braking systems, electronic cruise control systems, etc., are typical electronic systems that can 
malfunction due to the lack of protection from radio frequency energy present when transmitting. If 
the vehicle contains such equipment, consult the dealer and enlist their aid in determining the 
expected performance of electronic circuits when the radio is transmitting. 
• Electric Blasting Caps – To prevent accidental detonation of electric blasting caps, DO NOT use 
two-way radios within 1000 feet of blasting operations.  Always obey the “Turn  off Two-Way 
Radios” signs posted where electric blasting caps are being used. (OSHA Standard: 1926-900) 
• Liquefied Petroleum (LP) Gas Powered Vehicles – Mobile radio installations in vehicles powered 
by liquefied petroleum gas with the LP gas container in the trunk or other sealed-off space within the 
interior of the vehicle must conform to the National Fire Protection Association standard NFPA 58 
requiring: 
 The LP gas container and its fittings. 
 Outside filling connections shall be used for the LP gas container. 
 The LP gas container shall be vented to the outside of the vehicle. 
3.2 SAFE DRIVING RECOMMENDATIONS 
(Recommended by AAA) 
• Read the literature on the safe operation of the radio. 
• Keep both hands on the steering wheel and the microphone in its hanger whenever the vehicle is in 
motion. 
• Place calls only when the vehicle is stopped. 
• When talking from a moving vehicle is unavoidable, drive in the slower lane. Keep conversations 
brief. 
• If a conversation requires taking notes or complex thought, stop the vehicle in a safe place and 
continue the call. 
• Whenever using a mobile radio, exercise caution. 

MM-014716-001, Rev. J  
18 
4  OPERATING RULES AND REGULATIONS 
Two-way FM radio systems must be operated in accordance with the rules and regulations of the local, 
regional, or national government. 
In the United States, the M7300 mobile radio must be operated in accordance with the rules and 
regulations of the Federal Communications Commission (FCC).  As an operator of two-way radio 
equipment, you must be thoroughly familiar with the rules that apply to your particular type of radio 
operation. Following these rules helps eliminate confusion, assures the most efficient use of the existing 
radio channels, and results in a smoothly functioning radio network. 
When using your two-way radio, remember these rules: 
• It is a violation of FCC rules to interrupt any distress or emergency message. As your radio operates 
in much the same way as a telephone “party line,” always listen to make sure that the channel is clear 
before transmitting. Emergency calls have priority over all other messages. If someone is sending an 
emergency message – such as reporting a fire or asking for help in an accident – KEEP OFF THE 
AIR! 
• The use of profane or obscene language is prohibited by Federal law. 
• It is against the law to send false call letters or false distress or emergency messages.  The FCC 
requires that you keep conversations brief and confine them to business. To save time, use coded 
messages whenever possible. 
• Using your radio to send personal messages (except in an emergency) is a violation of FCC rules. 
You may send only those messages that are essential for the operation of your business. 
• It is against Federal law to repeat or otherwise make known anything you overhear on your radio. 
Conversations between others sharing your channel must be regarded as confidential. 
• The FCC requires that you identify yourself at certain specific times by means of your call letters. 
Refer to the rules that apply to your particular type of operation for the proper procedure. 
• No changes or adjustments shall be made to the equipment except by an authorized or certified 
electronics technician. 
NOTE
Under U.S. law, operation of an unlicensed radio transmitter within the jurisdiction of 
the United States may be punishable by a fine of up to $10,000, imprisonment for up to 
two (2) years, or both. 
5  OPERATING TIPS 
The following conditions tend to reduce the effective range of two-way radios and should be avoided 
whenever possible: 
• Operating the radio in areas of low terrain, or while under power lines or bridges. 
• Obstructions such as mountains and buildings. 
• In areas where transmission or reception is poor, some improvement can be obtained by moving a few 
yards in another direction or moving to a higher elevation. 

 MM-014716-001, Rev. J 
19 
6  MARINE FREQUENCIES 
Refer to Table 6-1: Marine Frequencies for a list of maritime frequencies per United States Coast Guard 
(USCG), National Oceanic and Atmospheric Administration (NOAA), and Canadian Department 
Fisheries and Oceans, August 2009: 
• United States (US) 
• International (Intl) 
• Canada (CA) 
Table 6-1: Marine Frequencies 
CHANNEL 
FREQUENCY 
CHANNEL USAGE 
US INTL CA 
SHIP 
(MHZ) 
SHORE 
(MHZ) 
1 
1 
T: 156.05 
R: 160.65 
T: 160.65 
R: 156.05 
International: Public Correspondence, Port Operations 
1a 
T/R: 
156.05 
T/R: 
156.05 
US: Port Operations and Commercial, Vessel Traffic Service (VTS). New 
Orleans/Lower Mississippi area.  
  2  2  T: 156.10 
R: 160.70 
T: 160.70  
R: 156.10 
International: Public Correspondence, Port Operations 
  3  3  T: 156.15 
R: 160.75 
T: 160.75 
R: 156.15 
International: Public Correspondence, Port Operations 
4 
T: 156.20  
R: 160.80 
T: 160.80  
R: 156.20 
International: Public Correspondence, Port Operations 
4a 
T/R: 
156.20 
T/R: 
156.20 
Canada: Department Fisheries Ocean (DFO)/Canadian Coast Guard only in 
British Columbia coast area. Commercial fishing in east coast area 
5 
T: 156.25  
R: 160.85 
T: 160.85  
R: 156.25 
International: Public Correspondence, Port Operations 
5a 
5a 
T/R: 
156.25 
T/R: 
156.25 
US: Port Operations or VTS in Houston, New Orleans and Seattle areas. 
6  6  6  T/R: 
156.30 T/R: 
156.30 US: Intership Safety 
International: Intership 
Canada: May be used for search and rescue communications between ships 
and aircraft. 
  7    T: 156.35  
R: 160.95 
T: 160.95  
R: 156.35 
International: Public Correspondence, Port Operations 
7a    7a T/R: 
156.35 
T/R: 
156.35 
US: Commercial 
8 
8 
8 
T/R: 
156.40 
T/R: 
156.40 
US: Commercial (Intership only) 
International: Intership 
Canada: Also assigned for intership in the Lake Winnipeg area. 
9  9  9  T/R: 
156.45 T/R: 
156.45 US: Boater Calling. Commercial and Non-Commercial. 
International: Intership, Port Operations 
Canada: Commercial - British Columbia coast area. 
May be used to communicate with aircraft and helicopters in predominantly 
maritime support operations. 

MM-014716-001, Rev. J  
20 
Table 6-1: Marine Frequencies 
CHANNEL 
FREQUENCY 
CHANNEL USAGE 
US INTL CA 
SHIP 
(MHZ) 
SHORE 
(MHZ) 
10 
10 
10 
T/R: 
156.50 
T/R: 
156.50 
US: Commercial  
International: Intership, Port Operations 
Canada: Commercial - British Columbia coast area. 
May also be used for communications with aircraft engaged in coordinated 
search and rescue and antipollution operations. 
11 
11 
11 
T/R: 
156.55 
T/R: 
156.55 
US: Commercial. VTS in selected areas.  
International: Port Operations 
Canada: VTS - British Columbia coast area. 
Also used for pilotage purposes. 
12 
12 
12 
T/R: 
156.60 
T/R: 
156.60 
US: Port Operations. VTS in selected areas.  
International: Port Operations 
Canada: VTS - British Columbia coast area. 
Also used for pilotage purposes. 
13 
13 
13 
T/R: 
156.65 
T/R: 
156.65 
US: Intership Navigation Safety (Bridge-to-bridge). Ships >20m length 
maintain a listening watch on this channel in US waters.  
International: Intership, Port Operations 
Canada: VTS - British Columbia coast area. 
Also used for pilotage purposes. 
14 
14 
14 
T/R: 
156.70 
T/R: 
156.70 
US: Port Operations. VTS in selected areas.  
International: Port Operations 
Canada: VTS - British Columbia coast area. 
Also used for pilotage purposes. 
15 
15 
15 
T/R: 
156.75 
T/R: 
156.75 
US: Environmental (Receive only). Used by Class C Emergency Position-
Indicating Radio Beacons (EPIRBs).  
International: Intership, Port Operations 
Canada: Port operations and Ship Movement - British Columbia coast area. 
All operations limited to 1-watt maximum power. May also be used for on-
board communications. 
16 
16 
16 
T/R: 
156.80 
T/R: 
156.80 
US: International Distress, Safety and Calling. Ships required to carry radio, 
US Coast Guard (USCG), and most coast stations maintain a listening watch 
on this channel. 
International: International Distress, Safety and Calling 
Canada: International Distress, Safety and Calling 
17 
17 
17 
T/R: 
156.85 
T/R: 
156.85 
US: State Control  
International: Intership, Port Operations 
Canada: Port operations and Ship Movement - British Columbia coast area. 
All operations limited to 1 watt maximum power. May also be used for on-
board communications. 
18 
T: 156.90  
R: 161.50 
T: 161.50  
R: 156.90 
International: Public Correspondence, Port Operations 
18a    18a T/R: 
156.90 
T/R: 
156.90 
US: Commercial  
Canada: Towing - British Columbia coast area. 
 19    T: 156.95 
R: 161.55* 
T: 161.55* 
R: 156.95 
International: Public Correspondence, Port Operations 
19a 
19a 
T/R: 
156.95 
T/R: 
156.95 
US: Commercial  
Canada: DFO/Canadian Coast Guard. Pacific Pilots - British Columbia coast 
area. 

 MM-014716-001, Rev. J 
21 
Table 6-1: Marine Frequencies 
CHANNEL 
FREQUENCY 
CHANNEL USAGE 
US INTL CA 
SHIP 
(MHZ) 
SHORE 
(MHZ) 
20 
20 
20 
T: 157.00  
R: 161.60 
T: 161.60  
R: 157.00 
US: Port Operations (Duplex)  
International: Public Correspondence, Port Operations 
Canada: Port operations only with 1 watt maximum power. 
20a      T/R: 
157.00 
T/R: 
157.00 
US: Port Operations 
21 
T: 157.05 
R: 161.65* 
T: 161.65* 
R: 157.05 
International: Public Correspondence, Port Operations 
21a 
21a 
T/R: 
157.05 
T/R: 
157.05 
US: US Coast Guard only 
Canada: DFO/Canadian Coast Guard only. 
21b 
- - 
T/R: 
161.65 
22 
T: 157.10  
R: 161.70 
T: 161.70  
R: 157.10 
International: Public Correspondence, Port Operations 
22a    22a T/R: 
157.10 T/R: 
157.10 US: Coast Guard Liaison and Maritime Safety Information Broadcasts. 
Broadcasts announced on channel 16.  
Canada: For communications between Canadian Coast Guard and non-
Canadian Coast Guard stations only. 
 23 23 T: 157.15  
R: 161.75 
T: 161.75  
R: 157.15 
International: Public Correspondence, Port Operations 
23a 
T/R: 
157.15 
T/R: 
157.15 
US: US Coast Guard only 
23b 
- - 
T/R: 
161.75 
Canada: Continuous Marine Broadcast (CMB) service. 
24 
24 
24 
T: 157.20  
R: 161.80 
T: 161.80  
R: 157.20 
US: Public Correspondence (Marine Operator)  
International: Public Correspondence, Port Operations 
25 
25 
25 
T: 157.25  
R: 161.85 
T: 161.85  
R: 157.25 
US: Public Correspondence (Marine Operator)  
International: Public Correspondence, Port Operations 
Canada: Also assigned for operations in the Lake Winnipeg area. 
25b 
T/R: 
161.85 
26 
26 
26 
T: 157.30  
R: 161.90 
T: 161.90 
R: 157.30 
US: Public Correspondence (Marine Operator)  
International: Public Correspondence, Port Operations 
27 
27 
27 
T: 157.35  
R: 161.95 
T: 161.95  
R: 157.35 
US: Public Correspondence (Marine Operator)  
International: Public Correspondence, Port Operations 
28 28 28 T: 157.40 
R: 162.00 
T: 162.00 
R: 157.40 
US: Public Correspondence (Marine Operator)  
International: Public Correspondence, Port Operations 
    28b  - -  T/R: 
162.00 
Canada: Continuous Marine Broadcast (CMB) service. 
60 
60 
T: 156.025 
R: 160.625 
T: 160.625 
R: 156.025 
International: Public Correspondence, Port Operations 
61 
T: 156.075 
R: 160.675 
T: 160.675 
R: 156.075 
International: Public Correspondence, Port Operations 
61a 
61a 
T/R: 
156.075 
T/R: 
156.075 
Canada: DFO/Canadian Coast Guard only in British Columbia coast area. 

MM-014716-001, Rev. J  
22 
Table 6-1: Marine Frequencies 
CHANNEL 
FREQUENCY 
CHANNEL USAGE 
US INTL CA 
SHIP 
(MHZ) 
SHORE 
(MHZ) 
62 
T: 156.125 
R: 160.725 
T: 160.725 
R: 156.125 
International: Public Correspondence, Port Operations 
62a 
T/R: 
156.125 
T/R: 
156.125 
Canada: DFO/Canadian Coast Guard only in British Columbia coast area. 
63 
T: 156.175  
R: 160.775 
T: 160.775  
R: 156.175 
International: Public Correspondence, Port Operations 
63a    63a T/R: 
156.175 T/R: 
156.175 US: Port Operations and Commercial, VTS. New Orleans/Lower Mississippi 
area.  
Canada: Tow Boats - British Columbia coast area. 
64 
64 
T: 156.225  
R: 160.825 
T: 160.825 
R: 156.225 
International: Public Correspondence, Port Operations 
64a 
64a 
T/R: 
156.225 
T/R: 
156.225 
Canada: Commercial fishing only. 
 65    T: 156.275  
R: 160.875 
T: 160.875 
R: 156.225 
International: Public Correspondence, Port Operations 
65a    65a T/R: 
156.275 T/R: 
156.275 US: Port Operations  
Canada: Search and rescue and antipollution operations on the Great Lakes. 
Towing on the Pacific Coast. Port operations only in the St. Lawrence River 
areas with 1 watt maximum power. Intership in inland Manitoba, 
Saskatchewan, and Alberta areas. 
66 
T: 156.325  
R: 160.925 
T: 160.925  
R: 156.325 
International: Public Correspondence, Port Operations 
66a 
66a 
T/R: 
156.325 
T/R: 
156.325 
US: Port Operations  
Canada: Port operations only in the St. Lawrence River/Great Lakes areas 
with 1 watt maximum power. 1 watt marina channel - British Columbia coast 
area. 
67 
67 
67 
T/R: 
156.375 
T/R: 
156.375 
US: Commercial. Used for Bridge-to-bridge communications in lower Miss. 
River. Intership only.  
International: Intership, Port Operations 
Canada: May also be used for communications with aircraft engaged in 
coordinated search and rescue and antipollution operations. Commercial 
fishing only in east coast and inland Manitoba, Saskatchewan, and Alberta 
areas. Pleasure craft - British Columbia coast area. 
68 
68 
68 
T/R: 
156.425 
T/R: 
156.425 
US: Non-Commercial  
International: Port Operations 
Canada: For marinas, yacht clubs and pleasure craft. 
69 69 69 T/R: 
156.475 T/R: 
156.475 US: Non-Commercial  
International: Intership, Port Operations 
Canada: Commercial fishing only - east coast area. 
Pleasure craft - British Columbia coast area. 
70 70 70 T/R: 
156.525 T/R: 
156.525 US: Digital Selective Calling (voice communications not allowed)  
International: Digital selective calling for distress, safety and calling 
Canada: Digital selective calling for distress, safety and calling 
71 
71 
71 
T/R: 
156.575 
T/R: 
156.575 
US: Non-Commercial 
International: Port Operations 
Canada: Ship Movement - British Columbia coast area.Marinas and yacht 
clubs - east coast and on Lake Winnipeg. 

 MM-014716-001, Rev. J 
23 
Table 6-1: Marine Frequencies 
CHANNEL 
FREQUENCY 
CHANNEL USAGE 
US INTL CA 
SHIP 
(MHZ) 
SHORE 
(MHZ) 
72 
72 
72 
T/R: 
156.625 
T/R: 
156.625 
US: Non-Commercial (Intership only)  
International: Intership 
Canada: May be used to communicate with aircraft and helicopters in 
predominantly maritime support operations. 
Pleasure craft - British Columbia coast area 
73 
73 
73 
T/R: 
156.675 
T/R: 
156.675 
US: Port Operations 
International: Intership, Port Operations 
Canada: May also be used for communications with aircraft engaged in 
coordinated search and rescue and antipollution operations. Commercial 
fishing only in east coast and inland Manitoba, Saskatchewan, and Alberta 
areas. 
74 
74 
74 
T/R: 
156.725 
T/R: 
156.725 
US: Port Operations 
International: Port Operations 
Canada: VTS and Ship Movement British Columbia coast area. 
75 75 75 T/R: 
156.775 T/R: 
156.775 International: Port Operations 
Canada: Simplex port operation, ship movement and navigation related 
communication only. 
1 watt maximum. 
76 
76 
76 
T/R: 
156.825 
T/R: 
156.825 
International: Port Operations 
Canada: Simplex port operation, ship movement and navigation related 
communication only. 
1 watt maximum. 
77 
77 
77 
T/R: 
156.875 
T/R: 
156.875 
US: Port Operations (Intership only) 
International: Intership 
Canada: Pilotage - 
British Columbia coast area; 25 watts. Port operations only 
in the St. Lawrence River/Great Lakes areas with 1 watt maximum power. 
78 
T: 156.925  
R: 161.525 
T: 161.525  
R: 156.925 
International: Public Correspondence, Port Operations 
78a 
78a 
T/R: 
156.925 
T/R: 
156.925 
US: Non-Commercial 
Canada: Fishing Industry - British Columbia coast area. 
 79    T: 156.975  
R: 161.575 
T: 161.575 
R: 156.975 
International: Public Correspondence, Port Operations 
79a    79a T/R: 
156.975 
T/R: 
156.975 
US: Commercial. Non-Commercial in Great Lakes only 
Canada: Fishing Industry - British Columbia coast area. 
80 
T: 157.025 
R: 161.625 
T: 161.625 
R: 157.025 
International: Public Correspondence, Port Operations 
80a 
80a 
T/R: 
157.025 
T/R: 
157.025 
US: Commercial. Non-Commercial in Great Lakes only 
Canada: Fishing Industry - British Columbia coast area. 
81 
T: 157.075  
R: 161.675 
T: 161.675  
R: 157.075 
International: Public Correspondence, Port Operations 
81a    81a T/R: 
157.075 
T/R: 
157.075 
US: US Government only - Environmental protection operations 
Canada: DFO/Canadian Coast Guard use only. 
 82    T: 157.125  
R: 161.725 
T: 161.725  
R: 157.125 
International: Public Correspondence, Port Operations 
82a 
82a 
T/R: 
157.125 
T/R: 
157.125 
US: US. Government only 
Canada: DFO/Canadian Coast Guard use only. 

MM-014716-001, Rev. J  
24 
Table 6-1: Marine Frequencies 
CHANNEL 
FREQUENCY 
CHANNEL USAGE 
US INTL CA 
SHIP 
(MHZ) 
SHORE 
(MHZ) 
83 
T: 157.175  
R: 161.775 
T: 161.775 
R: 157.175 
International: Public Correspondence, Port Operations 
83a 
83a 
T/R: 
157.175 
T/R: 
157.175 
US: US Coast Guard only 
Canada: DFO/Canadian Coast Guard and other Government agencies. 
83b 
- - 
T/R: 
161.775 
84 84 84 T: 157.225  
R: 161.825 
T: 161.825  
R: 157.225 
US: Public Correspondence (Marine Operator)  
International: Public Correspondence, Port Operations 
85 85 85 T: 157.275 
R: 161.875 
T: 161.875  
R: 157.275 
US: Public Correspondence (Marine Operator)  
International: Public Correspondence, Port Operations 
86 
86 
86 
T: 157.325  
R: 161.925 
T: 161.925 
R: 157.325 
US: Public Correspondence (Marine Operator)  
International: Public Correspondence, Port Operations 
87 
87 
87 
T: 157.375  
R: 161.975 
T: 161.975 
R: 157.375 
US: Automatic Identification System duplex repeater 
International: Port Operations 
Canada: Port operation and ship movement - east coast area. 
Pleasure craft - British Columbia coast area. 
87a 
T/R: 
157.375 
T/R: 
157.375 
US: Public Correspondence (Marine Operator)  
87b 
T/R: 
161.975 
T/R: 
161.975 
Canada: Automatic Ship Identification and Surveillance System. 
 88 88 T: 157.425  
R: 162.025 T: 162.025 
R: 157.425 US: Commercial, Intership only.  
International: Port Operations 
Canada: Port operation and ship movement - British Columbia coast area. 
88a 
T/R: 
157.425 
T/R: 
157.425 
US: Commercial, Intership only.  
Canada: Automatic Ship Identification and Surveillance System. 
88b 
T/R: 
162.025 
T/R: 
162.025 
WX1 
WX1 
R: 162.55 
WX2 
WX2 
R: 162.4 
WX3 
WX3 
R: 162.475 
WX4 
R: 162.425 
WX5 
R: 162.45 
WX6 
R: 162.5 
WX7 
R: 162.525 

 MM-014716-001, Rev. J 
25 
7  PRODUCT DESCRIPTION 
The M7300 mobile is a state-of-the-art radio designed to meet the critical demands of its users. The 
M7300 mobile supports multiple operating modes, including OpenSky® digital trunked operation 
(700/800 MHz radios only), Enhanced Digital Access Communications System (EDACS®) or ProVoiceTM 
trunked modes, P25 digital trunked mode, P25 digital conventional mode, and analog conventional mode.  
The optional Global Positioning System (GPS) receiver module can provide standard GPS formatted data 
over the air for vehicle tracking systems. 
Data Encryption Standard (DES) and the optional Advanced Encryption Standard (AES) are available for 
maximum communications security. 
The M7300 radio uses the CH-721 Control Head which is available in two models: System and Scan. The 
display is designed to maximize readability and ease of use. The CH-721 utilizes a 3-line 12-character 
alphanumeric display with large buttons, volume knob, and channel knob, providing a user-friendly 
interface.  
The CH-721 control head can be mounted with the radio (Front Mount) or it can be mounted and operated 
remotely. For remote mount installations configured with a CH-721 control head, all normal radio 
operations and interfaces can be handled via the control head connected to the radio unit via a 3-wire 
Controller Area Network (CAN) cable. Two control heads may be attached to a radio. Each control head 
provides a serial access point for data and any one (only one at a time) can be connected to a data device 
such as a personal computer. 
Where multiple control heads are connected or where a dash-mount radio is installed with an additional 
remote control head, the following features are available from each position: 
• Outgoing voice calls can be initiated. Either control head can initiate a call but only one can talk at a 
time. The other connected control head hears both sides of the conversation. 
• Incoming and outgoing audio can be heard. (Outgoing audio is not broadcast at the source position.) 
• Independent audio control is available. 
• Radio settings such as talk group, scan mode etc., can be controlled. (Any connected control head can 
override the radio settings of another connected control head.) 
• Comfort settings, such as volume and display brightness that are applicable to the individual control 
head can be adjusted and cannot be overridden by another control head. 
• An optional intercom function is available between control units. Audio  is broadcast to ALL 
connected control heads. 

MM-014716-001, Rev. J  
26 
8  CHANGE OPERATING MODE (700/800 MHZ RADIOS 
ONLY) 
8.1 CHANGE FROM OTP MODE 
To change from OTP operating mode to EDACS, Conventional, and P25 (ECP) Modes: 
1. Use  ,  CLEAR/CLR, or OPTION/OPT to cycle through the menu until the “App Mode” 
appears in the bottom line of the display. 
2. Use   to choose an available mode. Press MENU and confirm (Y/N) with   and press 
MENU again. 
3. Press the MENU button to confirm.  
Or 
Preset button C can be configured via programming to reboot the radio into a particular application mode. 
Or 
Quick Button command 1# transitions the radio to ECP mode. If ECP mode is not loaded in the radio, the 
radio displays “No App.” 
8.2 CHANGE TO OTP MODE 
1. Use   to scroll through available systems until OpenSky is displayed.  
2. The radio transitions to OTP mode. 

 MM-014716-001, Rev. J 
27 
9  OPENSKY OPERATION (700/800 MHZ RADIOS ONLY) 
9.1 CH-721 FRONT PANEL COMPONENTS 
The front panel of the control head includes a dot matrix display,  controls for menu navigation, an 
emergency button, three pre-set buttons, a Power On-Off/Volume Control knob,  and  a microphone 
connector. In addition, the system model control head features a DTMF keypad (Figure 9-1).  
Figure 9-1: System Model 
Figure 9-2: Scan Model 
The buttons on the front panel are backlit for operation in a low ambient light level such as nighttime 
operation. Some buttons also flash to provide feedback of various operating conditions. 
NOTE
Button function may vary depending upon radio programming. Table 9-1 describes the 
default configuration. 

MM-014716-001, Rev. J  
28 
Table 9-1: Front Panel Default Controls and Functions 
PART FUNCTION 
Power On-
Off/Volume Control 
Knob 
Turn knob clockwise to power on the radio and increase volume. 
Turn counter-clockwise to decrease volume and power off the radio. 
Mic Connection Connection for hand-held, hands-free, speaker-mic, headset, or programming cable. 
If enabled through programming, the emergency button sends an em
ergency and opens 
voice communication on the currently selected talk group or the default emergency talk group 
(depending upon how the system is defined). 
While in the dwell display, scrolls through available talk groups. 
Scrolls through selections within the active menu (available talk groups, pre-programmed 
speed dial numbers, canned alert messages, etc.). 
IF ENABLED VIA PROGRAMMING, while in the dwell display, scrolls through available talk 
group. 
Scrolls through selections within the active menu (available talk groups, pre-programmed 
speed dial numbers, canned alert messages, etc.).  
Or 
Increases and decreases the display brightness. 
 IF ENABLED VIA PROGRAMMING, scrolls through available menu items.  
OPT/OPTION Scrolls through available menu items. 
CLR/CLEAR 
MENU 
Press to activate the current selection. In some cases, this is not necessary as the last 
selection automatically activates after a short period.  
Also exits Stealth Mode. 
Display Area 
Menu selections and messages. 
Network Connectivity icon. 
Current Volume Level icon. 
Volume represented numerically within the display (0 = Muted, 40 = Loudest). 
User may select which one of several dwell displays the radio uses. 
Pre-Set Buttons 
A, B, & C 
These buttons are used to store and recall user-
selectable parameters such as scan mode, 
selected profile, selected talk group, and priority talk group. Different parameters can be 
stored at each of the three different pre-set buttons. 
Preset button C can be configured via programming to reboot the radi
o into a particular 
application mode. Contact your system administrator to determine if this feature is enabled in 
your radio. 
SCAN 
Toggles the Scan Mode ON/OFF.  
• If the Scan Mode is Normal and the Scan Mode is toggled off, when the Scan Mode is 
toggled On the Scan Mode is set to Normal. 
• If the Scan Mode is Fixed and the Scan Mode is toggled off, when the Scan Mode is 
toggled On the Scan Mode is set to Fixed. 
• If the Scan Mode is off when the radio boots up when the Scan Mode is toggled On the 
Scan Mode is set to Normal. 

 MM-014716-001, Rev. J 
29 
9.2 POWER UP AND VOLUME CONTROL 
9.2.1 Power Up 
1. Rotate the Power On-Off/Volume Control knob clockwise to power on the radio. The display 
illuminates when the radio powers up.  
2. Wait for the power-up sequence to complete, which takes approximately ten (10) seconds. 
During this time, if enabled for auto registration, the radio is provisioned with a customized user 
personality designed for the user’s specific needs by the OpenSky network administrator. 
If this personality contains encrypted talk groups or if the user is authorized for, and intends to use, 
manual encryption, User Login must be performed unless the radio has been programmed to auto-
login. This requires a system model control head so that the User ID and password can be entered. 
3. When provisioning is complete, the radio displays the Dwell Display. 
If User Login is required, the bottom line of the Dwell Display flashes the message “Pls Login.” 
9.2.2 Volume Control 
Turn the Power On-Off/Volume Control knob clockwise to increase the volume and counter-clockwise to 
decrease the volume. The radio sounds a tone to indicate the current volume level. 
9.3 SELF-TEST 
After power-up, the M7300 radio undergoes a multi-function automatic registration procedure. As many 
as sixteen (16) possible radio profiles are downloaded to the radio from the network in response to the 
User’s ID. 
9.4 LOGIN TO THE NETWORK 
Login occurs either automatically (auto registration) if the radio has a valid registration or, if enabled and 
authorized for encryption (Section 9.32), requires the user to enter a User ID and password. 
If encryption is enabled and authorized on the radio, the user is prompted to “Pls Login” with the *1 login 
command, a User ID, and password [System Model Control Head required]. 
1. Press *1 (Login command). 
2. Enter the full 10-digit User ID. 
3. Press the # key. 
4. Enter the password. 
• If the radio is configured for alpha-numeric passwords and the password has consecutive 
duplicate numbers (“MES33” for example), enter # between the consecutive duplicate numbers 
so the radio does not interpret the entry as a letter (“D” in this example). 
• If the radio is configured for numeric-only passwords, do not enter # between duplicated 
numbers. 
5. Press the # key twice. 

MM-014716-001, Rev. J  
30 
The User ID may be remembered from the previous login. (Refer to Section 9.5 for further details 
regarding log off commands.) The password is established before the radio is put into operation. Contact 
the local OpenSky network administrator for more information. 
NOTE
If necessary, con
tact radio system administration personnel for login assistance and/or 
radio-specific login instructions. 
9.5 LOG OFF THE NETWORK 
The *0## command de-registers the radio. Typically, this is automatically performed when powering 
down the radio. Using this method, the User ID is remembered by the radio so only the password is 
needed at next login. Manually log off by pressing *0## (requires System Model). 
9.6 TURN THE RADIO OFF 
To turn the radio off, rotate the Power On-Off/Volume Control knob counter-clockwise. In multiple 
control head installations, turning off the last powered-up control head also automatically turns off the 
radio. 
If enabled via programming, several user-selected radio settings (i.e., scan mode, pre-set buttons, and side 
tone levels) are maintained for the next operational session. At the next radio power-up, maintained 
settings automatically restore, along with the network personality settings. In multiple control head 
installations, settings are maintained for each control head position. 
NOTE
If power is abruptly disconnected from the radio prior to executing the correct turn-off 
procedure, user-selected radio settings and last-tuned channel information are lost. This 
can extend the time required for the radio to register with the network upon the 
subsequent power-up. 
9.7 MENU DISPLAY AND CONTROL AREA 
Following power-up, the radio display shows the default talk group (Figure 9-3).  , OPT/OPTION, 
or  CLR/CLEAR changes the display to the next available menu. In many cases, the dwell display 
automatically re-appears after no menu buttons are pressed for a short period of time (between 10 and 30 
seconds). For some menus such as the GPS and User ID menus, this does not occur unless the menu 
up/down buttons are pressed. 
When the dwell display is active, it changes to reflect the current profile, received talk group/caller ID 
(when available), or channel. The second line of dwell menu changes when the user presses the MENU 
button.  
The radio’s display is highly interactive. It responds in the top and bottom text lines as the user presses 
the menu buttons to scroll through the menu loop and the entries for each menu.  

 MM-014716-001, Rev. J 
31 
Figure 9-3: Typical Display 
9.8 RADIO STATUS ICONS 
Status Icons indicate the various operating characteristics of the radio. The icons show operating modes 
and conditions (see Table 9-2). The location of icons on the display may vary depending on configuration. 
Table 9-2: Icons and Descriptions 
ICON 
DESCRIPTION 
Indicates data registration. 
Volume bars – indicates relative volume 
level. 
9.9 DWELL DISPLAY 
When not engaged in menu selection, the first two lines of the display default to the user-defined display, 
known as the “dwell display.” The top line indicates the currently selected talk group. The second line 
displays the currently selected profile, caller ID/alias1
9.10 ERROR MESSAGES 
, received talk group, and current channel name. 
Press the MENU button to scroll through and view one of these second line options.  
This section lists and describes the error messages that may be displayed by the M7300 during OpenSky 
operation. 
MESSAGE 
DESCRIPTION 
NOAUT01 Unspecified MDIS error. If condition persists in strong signal conditions, contact 
your system administrator. 
MDENIED  
Unspecified MDIS error. If condition persists in strong signal conditions, contact 
your system administrator. 
UNAUTH3 
Unauthorized IP. The radio network ID has not been added to network. 
UNAUTH4 Bad authentication. If condition persists in strong signal conditions, contact your 
system administrator. 
1 Alias is a logical ID name such as “J_Smith.”  The name corresponds to a user ID such as 003-542-0001. 

MM-014716-001, Rev. J  
32 
MESSAGE 
DESCRIPTION 
UNAUTH5 Unsupported authentication. If condition persists in strong signal conditions, contact 
your system administrator. 
MDISBSY The MDIS is bu
sy. If condition persists in strong signal conditions, contact your 
system administrator. 
DUP IP 
Duplicate IP. 
BADIKEY 
Invalid infrastructure public key sequence number (IPKSN). 
BADEKEY 
Invalid end-system public key sequence number (EPKSN). 
UNK MES Unknown mobile end system (MES). If condition persists in strong signal conditions, 
contact your system administrator. 
NOAUT05 MDIS failed mutual authentication. If condition persists in strong signal conditions, 
contact your system administrator. 
BADMDIS  MDIS failed mutual authentication. If condition persists in strong signal conditions, 
contact your system administrator. 
MDS BSY 
MDIS busy – retry.  
UNK DOM 
Unknown home domain. If condition persists in strong signal conditions, contact 
your system administrator. 
KEYSYNC 
Mismatched key sequence number. 
UNK ALG 
Unknown/unsupported encryption algorithm. 
BADSIZE 
Unsupported MDIS key size. 
NOAUT11 MES failed data mutual authentication. 
If condition persists in strong signal 
conditions, contact your system administrator. 
NOAUT12 No response from MDIS. If condition persists in strong signal conditions, contact 
your system administrator. 
NOREPLY  No SME response from MDIS. 
If condition persists in strong signal conditions, 
contact your system administrator. 
VDENIED Unspecified VNIC error. 
If condition persists in strong signal conditions, contact 
your system administrator. 
BAD VID 
Invalid voice user ID. Check User ID. If correct, contact your system administrator. 
HOM DWN The Home VNIC is down. Retry. If 
error continues, contact your system 
administrator. 
SRV BSY 
The serving VNIC is busy (congested). 
MAX USR The maximum users are already registered with the specified user ID. OpenSky 
allows one User ID to log onto the network using up to three different radios. Use 
*0## command or power down one of the other radios to de-register the radio.  
NAS BSY 
The system cannot provision MES because of an administrative process. 
NOAUTHM The MES failed voice mutual authentication. If a valid radio displays this error, 
contact TAC. 

 MM-014716-001, Rev. J 
33 
MESSAGE 
DESCRIPTION 
NOSUPRT The MES cannot support the required provision. If condition persists in strong signal 
conditions, contact your system administrator. 
NOAUTHV VNIC does not support or failed mutual authentication. If condition persists in strong 
signal conditions, contact your system administrator. 
PLS LOGIN If enabled and authorized for encryption, the radio requires the user to enter a User 
ID and password if not programmed to auto-login. Login with the keypad. 
BAD PWD 
An invalid password has been entered. Verify the password and re-enter.  
OVER_TEMP The radio may be too hot. The radio ceases transmitting if it exceeds an operational 
temperature threshold. Let the radio cool before attempting to transmit. Report this 
failure to authorized technician. 
No App 
ECP mode is unavailable (not programmed). 
NO PRIV 
Missing required privilege. 
NO SYNC No forward-channel sync (weak or no coverage). If condition persists in strong signal 
conditions, contact your system administrator. 
No Access Incoming encrypted voice cannot be decrypted. If condition persists in strong signal 
conditions, contact your system administrator. 
NO REG 
Not registered with MDIS, VNIC, or both. 
Locked Out 
Another control head is actively using the user interface. 
DISABLED 
Function disabled (e.g., function invalid in current context). 
9.11 PERSONALITY 
As illustrated in Figure 9-4, a personality defines the profiles and talk groups available to the user. It is 
the structuring of a collection of profiles and privileges established by the OpenSky network administrator 
to provide the user with a comprehensive set of profiles to communicate effectively with the necessary 
talk groups or individuals. 
Personalities are stored on the network and downloaded over-the-air to the radio. This process is called 
“provisioning.” Provisioning occurs at radio power-up and at user log-in. Each personality can contain up 
to sixteen (16) profiles and each profile can contain up to sixteen talk groups. 
9.11.1 Profiles 
As stated above, each profile can contain up to sixteen (16) talk groups. A profile also defines the radio’s 
emergency behavior. All transmissions are made on the selected talk group (displayed on the top line of 
the dwell display). The user can change the selected talk group to any of the other talk groups within the 
profile. 

MM-014716-001, Rev. J  
34 
TG a 
TG b 
TG c 
TG x 
TG y 
TG z 
TG d 
TG e 
TG f 
TG a 
TG d 
TG g 
TG h 
TG i 
TG = Talk Group 
Profile 1 
Profile 2 
Profile 3 
Figure 9-4: Personality Structure Example 
NOTE
If Global Profile is enabled by the system administrator, the number of available talk 
groups to scan doubles. 
9.11.2 Talk Groups 
A talk group represents a set of users that regularly need to communicate with one another. There can be 
any number of authorized users assigned to a talk group. Talk groups are established and organized by the 
OpenSky network administrator. An OpenSky talk group is similar to a channel within a conventional FM 
radio system. 

 MM-014716-001, Rev. J 
35 
9.12 ALERT TONES 
The M7300 radio also provides audible Alert Tones or “beeps” to indicate the various operating 
conditions (see Table 9-3). 
Table 9-3: M7300 OpenSky Mode Alert Tones 
NAME 
TONE 
DESCRIPTION 
Call Queued  1 low tone/2 high tones Call queued for processing. 
Call Denied  3 short beeps Radio is out of coverage area or requested talk group 
is active. 
Grant (or Go-
Ahead) 1 short beep 
Sounds  when resources become available for a call 
request placed in the queue (if enabled) upon channel 
access.  
If the radio roams to another site while transmitting, 
then it auto rekeys  and begins  transmitting on that 
tower. It gives a second grant tone to let the user 
know they have roamed. 
Priority Bump 1 short tone Stopped current incoming call in favor of higher-
priority incoming call. 
Call Removed  1 long low-pitched tone Notifies the user access to the channel has been lost 
(out of coverage area or pre-empted by higher-priority 
call). 
Selective Alert 
Received 1 short tone, 2 short 
beeps, 1 short tone Only played once to indicate a selective alert has 
been received.  
Emergency Tone   3 long tones   Sounds when an emergency is declared.  
Emergency 
Cleared  1 long low-pitched tone Sounds when an emergency is cleared. 
Volume 1 short tone Reflects current volume level. 
Selective Call Ring  A ringing tone similar to a 
telephone 
Ringing is repeated every four seconds until the call is 
accepted or rejected by the radio being called or until 
the network drops the call if unanswered after one 
minute. 
PSTN Ring  1 medium-pitch repeating 
tone 
Two ring tone -  one generated by the radio when 
there is an incoming telephone call or an outgoing 
telephone call attempt is waiting for the telephone 
interconnect gateway equipment to dial the Public 
Switched Telephone Network (PSTN). The second 
ring tone sounds when the gateway equipment has 
dialed the number. 
Roam  2 short tones: 1 high-
pitched and 1 low-pitched Sounds  when the radio transitions from one radio 
base station site to another. 
Out of Range  Tri-tone beep  If enabled via programming, sounds when the radio is 
not within operational range with base station. 

MM-014716-001, Rev. J  
36 
9.13 BASIC MENU STRUCTURE 
Table 9-4 illustrates the basic M7300 OpenSky menu structure. Menu items vary depending upon system 
programming, radio hardware, and optional configurations. All menus except the dwell display menu can 
be turned off by network administration personnel. 
Table 9-4: Basic Menu Structure 
MENU NAME 
RADIO DISPLAYS 
USAGE NOTES 
To/From Dwell Display
, CLR, or OPT 
Engineering Display 
bit-error rates 
and RSSI data 
Displays radio system connection data. For engineering use.  
, 
CLR
, or 
OPT
Silent Emergency “SilentEmerg”  Use   to toggle Silent Emergency “On” or “Off.” 
, CLR, or OPT 
Operating Mode “App Mode”  Use   to choose an available mode (OTP, ECP, or OCF
). Press 
MENU and confirm (Y/N) with   and press MENU again. 
, CLR, or OPT 
GPS Fix “GPS Fix” 
Radio’s current GPS latitude and longitude position scrolls across top 
line of the display. Applies to GPS-equipped radios only.  
, CLR, or OPT 
User ID “User ID” 
User’s identification/name scrolls across top line of the display (if 
programmed). 
, 
CLR
, or 
OPT
IP Address “IP Address” 
Radio’s Internet Protocol (IP) address scrolls across top line of the 
display. 
, 
CLR
, or 
OPT
Station Identification “Station ID” 
Station’s identification/name scrolls across top line of the display (if 
programmed). 
, 
CLR
, or 
OPT
Stealth Mode “StealthMenu”  Use   to turn Stealth Mode “On.”  
, 
CLR
, 
or
OPT 
Treble Level “Treble Menu”  Use   to choose speaker/headset 
treble level (LOW, MEDIUM, 
MEDHIGH, or HIGH). Press Select to return to dwell display.  
, 
CLR
, or 
OPT
Display Brightness “Bright Menu”  Use   to dim or brighten. Press MENU to return to dwell display. 
, 
CLR
, or 
OPT
Side Tone Level “Side Menu”  Use  
to choose side tone level (Off, Low, Med, or High). Press 
MENU to return to dwell display.  
, CLR, or OPT 
Intercom “INTERCOM”  Use   to turn intercom “On” or “Off.” Press MENU 
to return to 
dwell display.  
, CLR, or OPT 
See Next Page 

 MM-014716-001, Rev. J 
37 
MENU NAME 
RADIO DISPLAYS 
USAGE NOTES 
See Previous Page 
Selected Channel “ChannelMenu” 
Allows the user to display and change the current channel. Press 
MENU
 to return to dwell display. 
, CLR, or OPT 
Scan Mode “ScnModeMenu”  Use   
to select scan mode (Normal, No Scan, or Fixed). Press 
MENU
 to return to dwell display.  
 , 
CLR
, 
or
OPT 
Talk group 
Lock Out  “LockOutMenu”  Use   to choose a talk group for locking/unlocking. Press MENU
to toggle “<” on (locked out) and off.  
, 
CLR
, or 
OPT
Priority 1 
Talk group “Priority1”  Use   to choose new priority talk group. Press MENU 
to return to 
dwell display.  
, CLR, or OPT 
Priority 2 
Talk group “Priority2”  Use   to choose new priority talk group. Press MENU 
to return to 
dwell display.  
, CLR, or OPT 
Emergency Dismiss “EmgDismiss” 
Use   to choose emergency talk group. Press MENU to dismiss.  
, CLR, or OPT 
Alerts Received “AlertsRcvd” 
or oldest message “No alerts” or alert message text scrolls in display. Use   
to view 
messages.  
, CLR, or OPT 
Alert Destination “AlertDest”  Use   to choose a speed-dial number. Press MENU 
to go to 
“AlertMsg” menu. Scroll through canned messages with  . 
Press 
MENU to send message and return to dwell display.  
, 
CLR
, or 
OPT
Status LED “Status LED”  Press 
MENU
, then use   to turn the TX/RX LED “On” or “Off.” 
, CLR, or OPT 
Client Mode “Client Mode”  Use   to choose Client Mode (Network or SOI).  
, 
CLR
, 
or
OPT 
Speed Dial “SpeedDial”  Use   to choose a speed-dial number. Press MENU
, then use 
 to select canned message. 
, 
CLR
, 
or
OPT 
Profile Selection “ProfileMenu”  Use   to choose an available profile. Press MENU 
to return to 
dwell display.  
, 
CLR
, or 
OPT
Request to Talk 
Message 
“RTT Msg”  Use   to scroll through available messages. 
, CLR, or OPT 
Status Message 
“Status Msg” 
Use   to scroll through available messages. 
, CLR, or OPT
Talk group Selection “TalkGrpMenu”  Use   to choose a talk group in current profile. Press MENU 
to 
return to dwell display.  
Use , CLR, or OPT to scroll through menus. 

MM-014716-001, Rev. J  
38 
NOTE
Menus vary depending upon system pr
ogramming, radio hardware, and optional 
configurations.  
9.14 DUAL-TONE MULTI-FREQUENCY 
Dual-Tone Multi-Frequency (DTMF) is the system used by touch-tone telephones. DTMF assigns a 
specific tone frequency to each key so a microprocessor can easily identify its activation. The radio 
supports DTMF with a system model control head (Figure 9-1). This allows for specific tasks such as 
entering a user ID and password, or Selective Calling. 
When a key on the DTMF keypad is pressed, the DTMF tone is played through the radio’s speaker. 
9.15 KEYPAD 
9.15.1 Keypad Commands (System Model Control Head) 
To perform a command from the keypad, press the * key followed by one of the pre-set function keys as 
follows: 
Table 9-5: Keypad Function Commands 
KEYPAD 
COMMAND FUNCTION 
*0 Log off command: *0## (logs the user off the system). See page 30 for additional 
information. 
*1 Login command: *1<User ID> # <Password> # (required for encryption). See page 
29 for additional information. 
*2 
Status Message: *2 <0...9> #. 
*4 
Enter Scene of Incident Mode (SOI) on specified channel and band: 
*4#<ccc>#<bb># where ccc is the SOI channel number and bb is the number assigned 
to each frequency band.  
Press *40# to exit SOI mode. 
*5 
RTT Message: *5 <0...9> #.  
*7 Initiate Selective Alert command:  *7<Target ID>#[Choose Message]#. See page 48 
for additional information. 
*8 Radio-to-Radio Call command: *8<Selective call number># (PTT to dial).  
*9 Public Switched Telephone Network (PSTN) Call command:  *9 <telephone 
number># (PTT to dial). See page 50 for additional information. 
*32 Begin Manual Encryption command: *32<Pre-Determined Encryption Key >#  
1 – 16 digit encryption key for 128 bit encryption; 17 – 32 digit encryption key for 256 
bit encryption. See page 54 for additional information. 
*33 End Manual Encryption command: *33# 

 MM-014716-001, Rev. J 
39 
9.15.2 Quick Buttons (System Model Only) 
Quick Keys are a two-button sequence that gives the radio user quick access to certain menu items. Quick 
keys act as a toggle function. 
Table 9-6: Quick Button Functions 
QUICK 
KEYS 
FUNCTION 
1# 
Transition to ECP mode. 
If ECP is not loaded in the radio, the radio displays “No App.” 
2# 
Stealth Mode On/Off. 
3# 
Scan Mode On/Off.  
• If the Scan Mode is Normal when the Scan Mode is toggled off, the Scan Mode is Normal 
when toggled on again. 
• If the Scan Mode is Fixed when the Scan Mode is toggled off, the Scan Mode is Fixed 
when Scan Mode is toggled on again. 
• If the Scan Mode is off when the radio boots up, the Scan Mode is Normal when Scan 
Mode is toggled on. 
4# 
Lights/Tones On/Off. 
This turns the TX/RX LEDs and Side Tones On/Off. 
If the radio is in Stealth Mode, this quick button is disabled since the user is not able to turn on 
the light/tones in Stealth Mode. 
9.15.3 Keypad Lock/Unlock 
To lock or unlock the keypad: 
1. Press the MENU button. 
2. While the MENU button is pressed, within one second press the OPTION button.  
3. A brief message is displayed on the 2nd line of the display (Kypd Lck, Kypd Unlck). 
9.15.4 Password Entry 
Password entry requires a system model control head. Password characters are encrypted on the display 
using symbols to indicate the entry. The encryption symbols for each entry appears in the display as they 
are scrolled through, for example: '-' and '+'. Press the # key twice to complete the entry process.  
NOTE
If the password is wrong, the radio does not successfully register with the network for 
wide area voice reception. The radio can still be used in single-site mode. 
9.15.5 DTMF Overdial 
Using the keypad on a System Model, the radio can transmit DTMF tones corresponding to 
numbers/characters 0 - 9, *, and # on the keypad. To overdial numbers/characters, transmit by pressing 
and holding the PTT button and then, press the corresponding keys (one at a time) on the keypad. 

MM-014716-001, Rev. J  
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9.16 CHANGE THE ACTIVE PROFILE 
The radio can store up to sixteen (16) standard profiles, one of which is the currently active profile. To 
change the currently active profile: 
1. Scroll through the menu until “ProfileMenu” is displayed. 
2. Use   to scroll through the list of available profiles. 
3. Profile becomes active when selected for longer than two (2) seconds, when the MENU is pressed, or 
when the menu is changed.  
9.17 ENABLE/DISABLE VOLUME SIDE TONE 
The Volume Side Tone sounds when adjusting the volume control.  
To enable or disable this tone:  
1. Power off the radio.  
2. Press and hold the B button while turning the radio on. 
9.18 CHECK OR CHANGE THE SELECTED TALK GROUP 
Each profile stored in the radio can have up to sixteen (16) talk groups. One talk group within the 
currently active profile is set as the “selected talk group.” For the radio user, the selected talk group is 
typically the focus of most voice transmissions and receptions. There are two ways to change the selected 
talk group: 
First Method: 
1. Scroll through the menu until “TalkGrpMenu” appears on the bottom line of the display. The 
currently selected talk group appears in the top line of the display.  
2. Use   to scroll through the available list of talk groups in the active profile. This list is 
determined by the OpenSky network administrator. 
Second Method: 
From the dwell display, use the talk group selection knob or   to scroll through the available list of 
talk groups in the active profile. 
9.19 ADJUST DISPLAY AND BUTTON BACKLIGHT BRIGHTNESS 
1. Scroll through the menu until “Bright Menu” appears. 
2. Use   to increase or decrease brightness. Display and button backlight brightness immediately 
dims or brightens. 
Or  
If enabled via programming,   increases/decreases brightness. 
9.20 STEALTH MODE 
For some users, it is important to be able to turn off the radio’s display lights, button backlighting, volume 
and side tones,  but not radio traffic.  For example, in covert operations, lights and sounds could 

 MM-014716-001, Rev. J 
41 
inadvertently expose an otherwise unobservable radio user.  For this purpose, the radio has a Stealth 
feature that disables the radio display light, indicator light, and audible side tones.  
When Stealth Mode is on, the radio continues to scan the programmed list of talk groups and the user can 
key-up on the selected talk group. All buttons are disabled except for PTT, Emergency, 2# and MENU. 
Since the screen is blank the user cannot see the result of other button presses. 
9.20.1 Enable Stealth Mode 
1. Scroll through the menu until “StealthMenu” appears. 
2. To immediately turn Stealth Mode on, press (+) or (-) with  . 
Or 
Press quick button command 2# on the System Model control head.  
9.20.2 Disable Stealth Mode 
To turn Stealth Mode off, press quick button command 2# or the MENU button on the radio’s front panel. 
9.21 ADJUST SIDE TONE AUDIO LEVEL 
The radio sounds confirming tones called “side tones” when its buttons are pressed. Most users find this 
audible confirmation helpful when navigating the menus. Side tone audio level can be adjusted or turned 
completely off using the “Side Menu.” 
For covert operations, it may be necessary to turn off side tones. For safety’s sake, turning off the radio 
during covert operations is not recommended. 
To temporarily disable the side tones that could expose the user’s presence and position, use the menu 
buttons to access the “Side Menu” and select “Off” from the menu choices. 
If the radio is operating properly but side tones are not heard when the menu buttons are pressed, the side 
tones are probably turned off. To turn them back on, access the “Side Tone” menu and select a setting 
other than “off.” 
Use the following procedure to set side tone level: 
1. Scroll through the menu until the “Side Menu” appears in the bottom line of the display. 
2. Use   to change to the desired level (Off, Low, Medium, and High). To turn side tones 
completely off, use the “Off” setting. 

MM-014716-001, Rev. J  
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9.22 CHANGE OPERATING MODE 
1. Scroll through the menu until “App Mode” appears in the bottom line of the display. 
2. Use   to choose an available mode. Press MENU and confirm (Y/N) with   and press 
MENU again. 
Or 
Preset button C can be configured via programming to reboot the radio into a particular application mode. 
Or 
Quick Button command 1# transitions the radio to ECP mode. If ECP mode is not loaded in the radio, the 
radio displays “No App.” 
9.23 RECEIVE AND TRANSMIT VOICE CALLS 
As soon as the radio completes the startup/login/provision/self-test sequence and registers on the 
OpenSky network, voice calls from talk groups in the active profile are audible. 
9.23.1 Receive a Voice Call 
NOTE
The Alias/User ID/Talk Group name are only displayed if that dwell display option is 
selected using the MENU button. For example, if the user sets the dwell display option 
to profile, the profile continues to be displayed when a call is received. 
No action is required to receive a voice call. The display responds to incoming voice calls as follows: 
• When the dwell display is set to received talk group, the scan mode is Normal or Fixed: 
a. If the received talk group matches the selected talk group, then the alias (if available) or user ID 
of the incoming caller is displayed.  
b. If the received talk group does not match the selected talk group, then the received talk group 
name is displayed 
• When the dwell display is set to received talk group and the Scan Mode is None, the radio only 
receives voice on its selected talk group. When the call is received, the alias (if available) or the user 
ID of the incoming caller is displayed. 
• When the dwell display is not set to received talk group, then there is no display indication of an 
incoming call. 
NOTE
A radio receiving a System All Call displays “All Call” instead of the alias. A radio 
not transmitting on a talk group in emergency status drops all other calls to scan into 
an All Call. 
Refer to Section 9.27 for detailed information on talk group scanning. Refer to Section 9.32 for detailed 
information regarding sending and receiving encrypted calls. 

 MM-014716-001, Rev. J 
43 
9.23.2 Transmit a Voice Call 
Transmit a voice call as follows: 
1. Turn the radio on. 
2. If required, login to the network using a user ID and password (see Section 9.4). 
3. Select the desired talk group for transmitting on. 
4. Press and hold the Push-to-Talk (PTT) button on the hand-held microphone, pause for a moment, 
and then speak normally. For maximum clarity, hold the microphone approximately 2 inches from the 
mouth and do not shout or whisper into it. If the call is queued by the network, wait for the grant tone 
to sound before speaking.  
5. Release the PTT button when finished speaking. 
Refer to Section 9.32 for detailed information regarding sending and receiving encrypted calls. 
9.24 ADJUST AUDIO TREBLE LEVEL 
The tone of received signals can be adjusted using the radio’s “Treble Menu” as follows: 
1. Scroll through the menu until “Treble Menu” appears. The radio’s current treble level setting 
indicates in the top line of the display. There are four levels available: low, medium, medium-high, 
and high. 
2. Use   to increase or decrease treble level. 
3. Press the MENU button or wait a few seconds to return to the Dwell Display. 
9.25 INTERCOM MODE 
The optional intercom mode gives users at multiple control heads connected to the same radio the ability 
to communicate with each other without transmitting over-the-air. Turn intercom mode on and off using 
the “INTERCOM” menu as follows: 
1. Scroll through the available menu items until “INTERCOM” appears in the display. 
2. Use   to toggle between “On” and “Off.” 
When intercom mode is turned on: 
• Incoming voice calls override intercom communications for the duration of the voice call. The radio 
and associated control heads remain in intercom mode and intercom communications resume when 
the voice call ends. 
• “TG: INTERCOM” appears in the control head’s display when talking on the intercom. This indicates 
microphone audio is not sent out on the selected talk group; rather, it remains localized between the 
radio control positions (i.e., the control heads connected to the mobile radio). 
• If a call exists on the currently selected talk group when a PTT button is pressed at one of the control 
heads, “TG: in use” appears in the display to indicate intercom mic audio cannot preempt the call on 
the talk group. 

MM-014716-001, Rev. J  
44 
CAUTION
A user at a radio with only one control head/front panel can turn intercom mode on. In 
this case, pressing the microphone’s PTT button does NOT 
send microphone audio 
anywhere. 
9.26 TALK GROUP LOCK OUT 
There are two ways of focusing voice communications by suppressing calls from talk groups in the 
currently active profile: 
1. No Scan. By turning scan off (selecting “No Scan” via the “ScnModeMenu”), only the selected talk 
group is audible. 
2. Lock Out. By locking out selected talk groups, the “chatter” of the locked out talk groups cannot be 
heard. This focuses the user’s scanning resources to calls only on desired talk groups. 
Talk group lock out is a scan-related feature. With lock out, one or more talk groups in the active profile 
can be temporarily disabled from being scanned. Calls are not received on locked-out talk groups. Lock 
out settings are not retained between profile changes or when the radio is power cycled. 
NOTE
Lock out is a listening (receive) function and only blocks received calls on locked out 
talk groups. Lock out does not affect transmit capability. The above methods do not 
apply to recent emergency lock outs. 
Only talk groups in the active profile can be locked out, since they are the only talk groups whose voice 
calls can be heard on the radio. 
NOTE
P1 and P2 talk groups cannot be locked out. 
The default emergency and emergency-capable talk groups can be locked out if they are NOT in an 
emergency state. If a talk group is locked out and is subsequently changed to the currently selected talk 
group, it is automatically unlocked by the radio so the user can hear calls on the talk group. The radio may 
be configured so all talk groups are automatically locked out by default. In this case, they must be 
manually unlocked, if desired. 
9.26.1 Lock Out a Talk Group 
1. Scroll through the menu until “LockOutMenu” appears in the bottom line of the display. The name of 
a talk group in the currently active profile appears in the top line. 
2. Use   to scroll through the list of talk groups, if any, until the desired talk group for lock out 
appears in the top line of the display.  
3. Press the MENU button to lockout the displayed talk group. A less than symbol (<) appears next to 
the talk group’s name. 
4. Repeat steps 2 and 3, as needed, to lock out additional talk groups. 
The dwell display re-appears a few seconds after button presses end. 
While scrolling through talk groups in the active profile, the only talk groups that appear in the 
“LockOutMenu” are those in the active profile. 

 MM-014716-001, Rev. J 
45 
9.26.2 Unlock a Talk Group 
1. Scroll through the menu until “LockOutMenu” appears in the bottom line of the display. The name of 
a talk group in the currently active profile appears in the top line. 
2. Use   to scroll through the list of talk groups, if any, until the talk group desired for unlocking 
appears in the top line of the display. A less-than symbol (“<”) appears next to the name of a talk 
group that is currently locked out. 
3. Press the MENU button to unlock the talk group. The less-than symbol (“<”) next to the name of the 
talk group disappears. The dwell display appears as soon as the radio acknowledges the selection. 
NOTE
• Changing the active profile removes any lock outs you have made. 
• Turning off the radio removes any lock outs you have made. 
9.27 SCANNING 
Three scanning modes are available for the radio, but only one can be active at any time. Changing the 
scanning mode changes the way the radio scans voice calls for all of profiles in the radio personality, no 
matter which profile is or becomes active. 
As described in Table 9-7, the choice of scanning mode changes the span of communications with all the 
talk groups in the radio’s profiles, but does not affect interaction with the talk groups. 
Table 9-7: Scan Modes 
SCAN MODE  EXPLANATION 
No Scan 
Eliminates distractions. 
Full communications (transmit and receive) on selected talk group. 
No calls received from other talk groups. 
Normal  
(Default) 
The user can scan all talk groups in the active profile that are not locked out as long as there is 
demand on the site. 
Priority (P1 and P2) groups are user selectable. 
Receive calls from more than one talk group, if available from the current site. 
Allows dragging of the selected talk group, P1, P2, and default emergency talk groups to the site on 
which the radio is registered. (If other calls are available at the site, they also can be heard but they 
are not be actively dragged.) 
The default emergency talk group, as well as any emergency-enabled talk groups, is only dragged 
if it is in emergency mode. 
Fixed 
Functions the same as Normal Scan Mode, except the priority groups are fixed to the selected 
profile’s pre-defined P1 and P2 groups (configured via the UAS).  

MM-014716-001, Rev. J  
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9.27.1 Check or Change Active Scan Mode 
The currently active scan mode does not appear in the dwell display. To check it, access “ScnModeMenu” 
and observe it in the top line of the display. To change the active scan mode: 
1. Scroll through the menu until “ScnModeMenu” appears in the display. 
2. Use   to scroll through the scan options until the desired mode appears. See Table 9-7. 
Or 
Use the quick button option 3#. 
9.27.2 Scan Priority 
The following lists the scanning priority order (from highest to lowest): 
• System All Call 
• Selected talk group in emergency state 
• Default emergency group in emergency state 
• Selected talk group 
• Emergency capable group in emergency state 
• Priority 1 talk group 
• Priority 2 talk group 
• Other (non-priority) 
9.27.3 Change Priority 1 and Priority 2 Talk Groups 
Follow this procedure to set talk groups in the current profile as the Priority 1 or Priority 2 talk group: 
1. Scroll through the menu until “Priority1” or “Priority2” appears in the bottom line of the display 
(Priority 1 group has higher priority than the Priority 2 group. The talk group currently set as the 
priority talk group appears in the top line of the display. 
2. Use   to select a new priority talk group. 
3. Press the MENU button to set the newly selected talk group as the priority talk group. 
9.28 MAKE SELECTIVE CALLS 
Selective Calling is a feature that allows two radio units to obtain and utilize an independent voice path 
for a private call. Radios can be configured to both initiate and receive Selective Calls or to only receive 
Selective Calls. 
In the OpenSky system, a source radio can be configured to initiate Selective Calls through a pre-
programmed list in memory. This method uses the “speed dial list” set up by the OpenSky network 
administrator and provisioned as part of the registration process. 
In addition, a properly equipped source radio can initiate a Selective Call to any radio in the system by 
entering the ten-digit voice user ID (which looks like a telephone number) of the target device. Entering a 
Selective Call number without using the speed dial feature requires a system model control head (Figure 
9-1). See Section 9.14 for more detail. 

 MM-014716-001, Rev. J 
47 
NOTE
Selective Calls are terminated if an emergency is declared. The network limits Selective 
Calls to ten (10) minutes maximum. 
Table 9-8 lists and defines the messages that may be displayed by the radio during a Selective Call. 
Table 9-8: Status of Selective Call 
STATUS MESSAGE DEFINITION 
Busy Peer is involved in another selective/PSTN call. 
Disconnect Selective/PSTN call was terminated for unknown 
reason. 
Network Err Selective/PSTN call cannot continue because of 
an unspecified network error. 
Reject Peer or this user declined request to establish 
selective/PSTN call. 
Unavailable Peer cannot be reached for selective/PSTN call. 
Calling Calling peer (i.e., for selective or PSTN calls). 
Connecting Establishing selective/PSTN call with peer. 
Hangup Peer or this user terminated selective/PSTN call. 
Lim 10 min Selective/PSTN call limited to 10 minutes. 
Timing Out Selective/PSTN call has 10 seconds remaining 
before limit is reached (shown for 5 seconds). 
Sel Call Selective Call is active. 
9.28.1 Manually Dial a Selective Call (System Model Control Head) 
1. Press *8 on the keypad. 
2. Enter the number of the radio to be called (e.g., 027-001-0006). If the region number (first 3 digits; 
027 in this example) is the same as this radio’s region number, these digits do not need to be entered. 
Likewise, if the region and agency numbers (first 6 digits; 027-001 in this example) are the same as 
this radio’s numbers, these digits do not need to be entered. Leading zeros can also be ignored. 
3. Press and release the # key. 
4. Wait approximately two (2) seconds. 
5. Press and release the PTT button to initiate the Selective Call request. When the called party accepts 
the call, press the PTT again and begin speaking. 
9.28.2 Speed Dial a Selective Call 
NOTE
Speed dial numbers are defined and provisioned by the OpenSky network administrator 
and cannot be manually entered into the radio by the user. Contact the administrator if 
changes to the speed dial list are required. 
1. Scroll through the menu until “SpeedDial” appears in the bottom line of the display. 
2. Using  , scroll through the pre-programmed speed-dial numbers until the desired number 
appears in the display. 

MM-014716-001, Rev. J  
48 
3. Press and release the PTT button to ring the other user. 
a. The ring tone is sounded. 
b. If the other user accepts the call, the called user’s alias appears in the initiating caller’s display. 
The two are now in a private call until one ends the call, the call is terminated due to an initiated 
emergency, or the maximum time limit of ten (10) minutes is reached. 
4. To end the call, press the # button or (-) using  . 
9.28.3 Receive a Selective Call 
When someone calls in from another radio using the Selective Call function, a ring sounds in the speaker 
and/or headset. Press up or down using   or any number key to accept an incoming Selective Call. 
Press the microphone’s PTT button when speaking (transmitting) to the caller. 
Press the # button or (-) using   to reject an incoming Selective Call. 
A Selective Call is interrupted if an emergency is declared on a monitored talk group. 
9.28.4 Terminate a Selective Call 
Press the # button or (-) using   to terminate an incoming Selective Call. 
9.29 SELECTIVE ALERT 
Selective alert messaging is an OTP feature allowing one of up to eight (8) pre-programmed text 
messages (refer to Section 9.29.3) to be sent from one radio to another. The user specifies a destination 
radio’s User ID, selects one of the pre-programmed text messages, and then transmits it to the destination 
radio. The message delivery system adds time-of-day information and forwards the message to the 
destination (receiving) radio. The sending radio receives a brief message noting the status of the 
transmission. Refer to Table 9-9 for a list of possible status messages. 
The first few characters of a message are part of the message text entered when the message is 
programmed. This programming is performed by the system or network administration personnel. 
Messages successfully received by the destination radio are stored until deleted or until the radio is power 
cycled. 
9.29.1 Send Selective Alert Messages 
The destination radio’s User ID can be selected via the menu or via the keypad on the system model 
control head. 
Menu Button Method: 
1. Scroll through the menu until “AlertDest” (Alert Destination) appears in the bottom line of the 
display. The current speed dial number scrolls on the top line. 
2. Use  to change to a different speed-dial number.  
3. When the desired speed-dial number appears, press the MENU button to activate the selection. 
4. Choose and send the message. 

 MM-014716-001, Rev. J 
49 
Keypad Method (System Model Control Head): 
To select the destination radio’s User ID using the keypad, perform the following: 
1. Press *7 on the keypad. “AlertDest” appears in the display. 
2. Enter the number of the destination radio (e.g., 027-001-0006) using the DTMF keypad. If the region 
number (first 3 digits; 027 in this example) is the same as this radio’s region number, these digits do 
not need to be entered. Likewise, if the region and agency numbers (first 6 digits; 027-001 in this 
example) are the same as this radio’s numbers, these digits do not need to be entered. Leading zeros 
can also be ignored. Refer to Section 9.14. 
3. Press the # key to enter the number. 
Choose and Send the Message 
After specifying the destination radio’s User ID (Section 9.29.1), the radio automatically allows you to 
choose a message. The current message scrolls across the top line of the display. To choose a message: 
1. Scroll through the message list using  . The next available message in the list is displayed. 
Pause between each arrow button press to observe the entire message as it scrolls across the top line 
of the display. 
2. To select and send the displayed message, press the MENU button, or press the # button on the 
keypad. 
3. The status of the sent message is momentarily displayed (Table 9-9). 
Table 9-9: Status of Selective Alert 
STATUS MESSAGE DEFINITION 
Alert Sent Alert message successfully sent to target. 
Delivered Alert message passed to network. 
Delivering Delivering alert message to target. 
New alert New alert message received. 
No alerts No alerts are available. 
Busy VNIC congested and cannot deliver message at 
the current time. 
Dest Down Destination home VNIC down. 
Ignored Destination is either non-responsive or does not 
care to respond. 
Inv Option Distribution option is invalid. 
Not Reg Destination is not registered. 
Partial Not all destination ESN instances reachable. 
Unauth Alrt Unauthorized service function; initiator is not 
authorized to send the selected service message. 
Unknown Msg 
Unknown status received from VNIC. 
Unreachable Alert destination cannot be reached. 
9.29.2 Receive Messages 
When a selective alert message is received by a radio, a four-beep tone (one low, two high, and one low) 
is heard and “New alert” flashes until the new message is read. Up to eight (8) received messages are 

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stored. If another message is received, the first (oldest) message is automatically deleted to make room for 
new incoming messages. 
Display Received Messages 
1. Scroll through the menu until “AlertsRecvd” (Alerts Received) appears in the bottom line of the 
display. “No alerts” or the last received (newest) message appears in the display. It is preceded by the 
time the message was received, and the sender’s name/alias. 
2. View other received messages using  . 
3. To delete the message currently being viewed, press the MENU button. 
Delete Received Messages 
To delete a received message: 
1. Display the message. 
2. Delete the message by pressing the MENU button. 
3. Confirm the deletion by pressing the MENU button again. 
9.29.3 Define Pre-Programmed Messages 
All selective alert messages are pre-defined by the radio system’s maintenance personnel. These messages 
are sometimes referred to as “canned” messages. Custom selective alert messages cannot be created by 
the radio user. The entire selective alert message can include up to 99 text characters. 
9.30 TELEPHONE INTERCONNECT CALLS (SYSTEM MODEL CONTROL 
HEAD) 
9.30.1 Place an Interconnect Call 
If the radio system is equipped with Public Switched Telephone Network (PSTN) interconnect 
equipment, telephone calls can be made from the M7300 using this procedure: 
1. Press the * 9 keys. 
2. Enter the telephone number. Ignore dashes/spaces, and precede the number with any required access 
digits such as a 1 for long distance. 
3. Press the # key. 
4. Wait a few seconds and then press and release the mic’s PTT button to initiate the call. An initial ring 
tone plays indicating call initiation. Once the gateway picks up the call, another ring tone sounds. 
5. When the caller answers, press the PTT button when speaking and release it to listen to the caller. 
6. To hang-up, press the # button or (-) using  . 
9.30.2 Receive an Interconnect Call 
When receiving an Interconnect Call, a ring sounds in the speaker and/or headset. Press up or down using 
 or any number key to accept an incoming Interconnect Call. Press the microphone’s PTT button 
when speaking (transmitting) to the caller. 

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Press the # button or (-) using   to reject an incoming Interconnect Call. 
9.31 EMERGENCY COMMUNICATIONS 
The M7300 mobile radio can transmit both emergency voice calls and emergency alerts over the entire 
network. OpenSky handles emergency calls and alerts with the highest priority. 
For critical voice communications, an emergency call can be raised on the default talk group or the 
currently selected talk group by “declaring” an emergency on the talk group. The exact talk group is 
determined by the currently active profile. After successfully declaring an emergency on a talk group, the 
declaring radio’s microphone remains “hot” for a predetermined amount of time. In other words, the radio 
transmits audio for a period of time even when the microphone’s PTT button is not pressed. An 
emergency talk group is provided greater priority and infinite hang-time by the radio system’s 
infrastructure. Hang-time is the maximum duration of quiet time between transmissions on the talk group 
before the infrastructure assets are automatically taken away. Because an emergency call is handled on a 
talk group, it is received by all radios and consoles monitoring the talk group. 
An emergency alert is a data message sent by the radio to the MIS console (or any console capable of 
receiving it). It identifies the radio declaring the emergency, and the radio’s location (if the radio is 
equipped with a GPS receiver). Voice audio is not automatically transmitted during the emergency if the 
administrator configures the radio for alert notification only. 
9.31.1 Declare an Emergency Call or Alert 
1. Press the red emergency button on the radio to enter emergency mode. The emergency is raised after 
the emergency raise delay [default is one (1) second].  
• If the active profile of the unit initiating the emergency is configured for Emergency Alert, the 
emergency alert signal is sent to registered alert servers, such as the dispatcher console.   
• If the active profile of the unit initiating the emergency is configured for Emergency Call, the 
talkgroup is placed into emergency status notifying other radios and the emergency alert signal is 
sent to the dispatcher console.  
• If the emergency behavior of the active profile is Current, the active, selected voice group 
becomes the default emergency voice group.  
• If the emergency behavior of the active profile is Default, the radio moves to the default 
emergency voice group of the profile and this talk group becomes the select talk group.  
2. The display alternates between “Emergency” and whatever option is selected for the 2nd line of the 
dwell display.  
If the attempt  is unsuccessful, “E-PEND” flashes periodically and a retry is queued for 10 seconds. If 
unsuccessful because of lost sync, retry occurs immediately upon reacquiring sync. On each retry attempt, 
radio temporarily displays “E-RETRY.” This process repeats until the  emergency is successfully 
declared. 
9.31.2 Silent Emergency 
When this feature is enabled and an emergency call or alert is declared by pressing the emergency button, 
the radio does not play a tone and displays an abbreviated emergency message (default is EBA). This 
feature is enabled or disabled via programming or via the menu. 

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NOTE
If the Silent Emergency feature is enabled or disabled via programming, the setting 
survives  power cycle. Enable/Disable selection via the menu does NOT survive power 
cycle and the enable/disable state reverts to the programmed setting at power up. 
9.31.3 Clear an Emergency Call or Alert 
NOTE
Check with the system administrator to ensure that the radio is programmed to allow an 
emergency to be cleared. 
If enabled via programming, clear an emergency by: 
1. Pressing and holding the CLR/CLEAR button and simultaneously pressing the emergency button. 
2. After the Emergency Cleared Tone sounds, release both buttons. 
NOTE
If the radio is in Stealth Mode, clearing the emergency takes the radio out of Stealth Mode. 
9.31.4 Receive an Emergency Call 
Upon receiving an emergency call declared by another radio: 
• An emergency tone sounds in the radio’s speaker/headset (three short high-pitched beeps). 
• “EMERGENCY” flashes in the display if the radio is not in stealth mode. When receiving voice in an 
active emergency, the flashing “EMERGENCY” is inhibited so that the alias of the sender can be 
seen. 
• On receiving radios with the emergency talk group selected, the alias of the sending party is displayed 
for 5 seconds during the open-mic period, then the word “Emergency” flashes on the second line of 
the display and continues until the emergency state ends. 
• If scan mode is set to “No Scan” and the emergency was declared on the selected talk group, audio on 
the emergency talk group is heard in the speaker/headset. See page 45 for additional information on 
“No Scan” operation.  
• If scan mode is set to “No Scan” and the emergency was declared on a talk group other than the 
selected talk group, the emergency talk group (identified by an “*”) must be selected before audio on 
it is heard in the speaker/headset. 
• If scan mode is set to “Normal” and the emergency was declared on the selected talk group, the 
selected/emergency talk group’s name remains in the top line of the display. Audio on the emergency 
talk group is heard in the speaker/headset. 
• If scan mode is set to “Normal” and the emergency was declared on a talk group other than the 
selected talk group, the emergency talk group’s name appears in the bottom line of the display. Audio 
on the emergency talk group is heard in the speaker/headset. 
• The declaring radio's alias appears in the bottom line of the display when the emergency talk group is 
selected. 
• An emergency call can be dismissed as described in the following section. 

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NOTE
A r
adio declaring an emergency on a talk group has a “hot” mic time period of typically 
ten (10) seconds just after it declares the emergency. This time period may be adjusted 
by system or network administration personnel on a per radio basis. 
9.31.5 Dismiss an Emergency Call 
NOTE
An emergency is dismissed for a configurable amount of time only (default = 5 minutes). 
To ignore an emergency call declared by another radio user: 
1. Scroll through the menu until “EmgDismiss” appears in the display. 
2. Press   until the talk group in the emergency state appears, as indicated by an asterisk (*) 
following the talk group’s name. 
3. Press the MENU button. 
NOTE
The emergency dismiss timer is cleared when the emergency is cleared. 
9.32 ENCRYPTION 
In the OpenSky network, both data and voice use a 128-bit or 256-bit key encryption standard published 
by the Federal Information Processing Service (FIPS), called Advanced Encryption Standard (AES). AES 
is approved by the U.S. Department of Commerce for encryption of classified materials. 
When encryption is enabled on the network, data is encrypted from the MDIS to the Mobile End System 
(MES) (e.g., M7300 mobile radio). This form of encryption provides air-link security. 
Voice encryption is handled either automatically or manually. Automatic encryption is initiated through 
the Unified Administration Server (UAS) for a specific talk group and requires nothing from the user. 
Manual encryption is initiated by two or more radio users and requires system model control heads. Both 
methods of encryption are discussed in the following sections. 
9.32.1 Automatic Encryption 
For automatic encryption, a network administrator selects the talk group to be encrypted at the interface to 
the UAS. Once the talk groups have been selected and identified as secure, credentials for key generation 
are generated automatically by the system and provisioned to authorized users. This process requires that 
authorized users login to the network and be authenticated. Encryption keys require no manual handling 
and are never sent “in the clear” over any network interface or air-link. 
1. “Pls Login” appears displayed in the bottom line of the dwell display. 
2. Login normally using the keypad on a system model control head to enter User ID and Password. 
If a user is engaged in a call on a talk group encrypted at the network administrator level, “Secure Call” 
appears in the bottom line of the dwell display if the user is logged in to that talk group. 
If a secure call is in progress elsewhere and the user has not logged in, the bottom of the dwell display 
alternates between “No Access” and the alias of the radio that is currently engaged in the secure call. 

MM-014716-001, Rev. J  
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NOTE
The radio can also be programmed to automatically login and enable encryption. 
9.32.2 Manual Encryption (System Model) 
Two or more users can manually encrypt a call, if enabled, without an established encrypted talk group. A 
pre-determined key is required at each radio. 
NOTE
The key must be pre-determined by the users prior to making a manually encrypted call 
on a talk group and is entered into the radio using the keypad. For 128 bit encryption, this 
key is between 1 and 16 digits. For 256 bit encryption, this key is between 17 and 32 
digits. 
If two communicating radios have different (manually-
defined) keys, receive audio at 
each radio sounds garbled. 
With manual encryption enabled, unencrypted radio users on the talk group can still make standard voice 
(unencrypted) calls on the talk group. However, if an unencrypted user attempts to transmit on the talk 
group when one of the encrypted users is already transmitting on the talk group, the unencrypted radio 
sounds a deny tone and “No Access” appears in the display. Also, the encrypted user can hear standard 
unencrypted calls, but cannot respond while still manually encrypted. 
CAUTION
Do  not set a talk group for manual encryption if it has been set for encryption by the 
network administration personnel. 
Perform the following to transmit or receive manually encrypted calls: 
1. Press *32 on the keypad. 
2. Enter the key (1 – 16 digits for 128 bit encryption; 17 – 32 digits for 256 bit encryption). 
3. Press the # key. 
4. To end manual encryption, press *33#. 
If a user is engaged in a call on a talk group that has been manually encrypted at the radio level, the user 
sees “Secure Call” on the bottom of the dwell display. 
If a secure (encrypted) call is in progress, and the user has not entered the key, the bottom of the dwell 
display alternates between “No Access” and the alias of the radio that is currently engaged in the secure 
call. 
Once the user has terminated manual encryption, “UnSecure” appears temporarily in the bottom line of 
the dwell display. 

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9.33 PRESET BUTTONS 
The front panel contains three buttons labeled A, B, and C. By holding one of these buttons down for 
approximately three (3) seconds, the following current information is saved to the function of that button: 
• Selected Priority 1 and Priority 2 talk groups 
• Selected profile 
• Selected priority talk group 
• Lock outs 
• Scan mode 
• Intercom mode 
Presets are saved and restored to/from non-volatile memory. Changing the User ID (login in as a different 
user) clears the presets since they are stored on a per-user basis. Changing control heads does not recall 
presets for the previous control head. 
NOTE
Preset button C can be configured via programming to reboot the radio into a particular 
application mode. Contact your system administrator to determine if this feature is 
enabled in your radio. 
9.34 STATUS MESSAGES 
If enabled via programming, the radio can transmit a pre-programmed status message. Section 8.30.1 
describes how to send a status message via the keypad and Section 8.30.2 describes how to send a status 
message via the menu. 
9.34.1 Send Status Message via the Keypad (System Model Only) 
1. Press *2 <0…9> # on the keypad.  
2. A Status message can be associated with each key (0 – 9). This text is displayed on the first line of the 
display when the key is pressed until another key is pressed. 
• If no messages have been configured, “No Messages” is displayed. 
• If a message is not assigned to a key, “No Entry” is displayed for the keypad sequence. 
• You can press multiple keys to select the desired Status message. 
3. The # key terminates the keypad sequence and sends the currently selected status message. If no 
messages have been configured or no message is associated with the key, no message is sent and an 
error tone is played. 
Press * to cancel the keypad sequence. 
9.34.2 Send Status Message via the Menu 
1. Scroll through the menu until “Status Msg” appears and press MENU. If no messages have been 
configured, “No Messages” is displayed. 
2. Scroll through the available messages using . The configured Status message is displayed on 
the 1st line of the display. 

MM-014716-001, Rev. J  
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3. Press the MENU button to send the currently selected message. If no messages have been configured, 
no message is sent and an error tone sounds.  
Press up or down with  to cancel status message selection. 
9.35 REQUEST TO TALK (RTT) MESSAGES 
If enabled via programming, the RTT message feature allows you to send either a short service message 
to the VNIC. Section 9.35.1 describes how to send an RTT message via the keypad and Section 9.35.2 
describes how to send an RTT message via the menu. Note that only one RTT message can be 
programmed into the radio. 
9.35.1 Send RTT Message via the Keypad (System Model Radios Only) 
1. Press *5 <0…9> # on the keypad. The key associated with the RTT message (0-9) is configured via 
programming. 
2. This message is displayed on the first line of the display when the key is pressed until another key is 
pressed.  
• If no message has been configured, “No Message” is displayed. 
• If a message is not assigned to the key, “No Entry” is displayed for the keypad sequence. 
3. The # key terminates the keypad sequence and sends the currently selected RTT message. If no 
message has been configured or no message is associated with the key, no message is sent and an 
error tone is played. 
Press * to cancel the keypad sequence. 
9.35.2 Send RTT Message via the Menu 
1. Scroll through the menu until “RTT Msg” appears and press MENU. If no message has been 
configured, “No Messages” is displayed. 
2. Use   to select message. The configured RTT message is displayed on the 1st line of the display. 
3. Press the MENU button to send the currently selected message. If no message has been configured, 
no message is sent and an error tone sounds.  
Press   to cancel RTT message selection. 
9.36 DYNAMIC REGROUPING  
Dynamic regrouping requires that the network administrator determine which radio users should be 
formed into an impromptu talk group to respond to particular emergency conditions. 
The administrator edits the personalities of the affected radios to include an emergency profile and then 
pages the affected radios to re-register with the network to receive their edited personalities. 
In response, affected radios automatically re-register to receive their edited personalities. During re-
registration, subscriber equipment defaults to the emergency profile selected by the administrator. 

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9.37 GPS COORDINATES 
The radio’s current latitude and longitude coordinates may be displayed using the “GPS” menu. The 
following procedure assumes a GPS antenna is connected to the radio and it is receiving adequate signals 
from GPS satellites: 
1. Scroll through the menu until the “GPS” menu appears in the bottom line of the display. Current GPS 
coordinate latitude and longitude data continuously scrolls in the top line of the display in a 
degrees:minutes:seconds format. 
2. Use   to change to another menu. 
NOTE
If the internal GPS receiver’s data is expired (30 minutes or more) or unavailable, the 
radio uses the serving base station’s coordinates [GPS (Site) is displayed]. The GPS Menu 
also indicates if the data is aged (2 minutes or more) [GPS (Aged) is displayed]. 
9.38 SCENE-OF-INCIDENT MODE 
The Scene-of-Incident mode (SOI) is user-selectable. The SOI mode provides a local repeater function 
(V-TAC) with no network connection. 
CAUTION
When operating in the SOI mode, the radio is disconnected from the OpenSky network. 
Therefore, communications with radios and dispatch personnel on the network is not 
possible. 
Enter SOI Mode Manually Entering the Channel: 
1. Scroll through the menu until the Client Mode menu appears. 
2. Using , scroll until SOI is displayed. 
3. Press the MENU button to confirm mode selection. 
4. Using , scroll until “Manual Select Chan” is displayed and press MENU. 
5. Using , scroll to edit the right-most digit and press MENU to advance to the next digit. Repeat 
until the desired channel is entered. 
6. The radio then prompts the user to edit the band. Use   to edit the number assigned to the 
frequency band and press MENU to confirm and enter the SOI mode. 
Use the Client Mode menu to return to normal operation (Network Mode). The personality and profile in 
use at the time the radio entered SOI mode is restored. 
Enter SOI Mode Selecting Pre-Programmed Channel: 
1. Scroll through the menu until the Client Mode menu appears. 
2. Using , scroll until SOI is displayed. 
3. Press MENU to confirm mode selection. 
4. Using , scroll through a list of pre-programmed channels.  
5. Press MENU to confirm channel and enter SOI mode. 

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Use the Client Mode menu to return to normal operation (Network Mode). The personality and profile in 
use at the time the radio entered SOI mode is restored. 
Enter SOI Mode (System Model Only): 
1. Press *4#. 
2. The radio prompts for the channel. Enter the channel number and press # to confirm channel. 
3. The radio prompts for the band. Enter the number assigned for the desired frequency band and press # 
to confirm. 
4. The radio reverts to the dwell display. 
If accepted, you are switched off the network and communicate locally through the V-TAC.  
Press *40# or use the Client Mode menu to return to normal operation (Network Mode). The personality 
and profile in use at the time the radio entered SOI mode is restored. 

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10 EDACS/CONVENTIONAL/P25 (ECP) OPERATION 
10.1 TURN THE RADIO ON 
Rotate the POWER ON/OFF/VOLUME knob clockwise, out of detent to turn the radio on. A short beep 
(if enabled through programming) indicates the radio is ready for operation. The display indicates, if 
programmed, the last selected system name on line one and the last selected group or channel name on 
line two. 
10.2 CH-721 FRONT PANEL COMPONENTS 
The front panel of the control head includes a dot matrix display,  controls for menu navigation, an 
emergency button, three pre-set buttons, a Power On/Off/Volume Control knob,  and  a microphone 
connector. In addition, the system model control head features a DTMF keypad.  
Table 10-1 lists all default front panel controls and their functions. All functions and controls of the Scan 
radio operate the same as the corresponding functions and controls on the System radio.   
Figure 10-1: System Model 
Figure 10-2: Scan Model 

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NOTE
Button function may vary depending upon radio programming. Complete the table in 
Section 13 if the keys have been remapped to provide new functions.  
Table 10-1: Front Panel Default Controls and Functions 
PART FUNCTION 
Power On-
Off/Volume Control 
knob 
Turn knob clockwise to power on the radio and increase volume. 
Turn counter-clockwise to decrease volume and power off the radio. 
Mic Connection Connection for hand-held, hands-free, speaker-mic, headset, or programming cable. 
 The Emergency button declares an emergency if enabled through programming. 
 This rotary switch selects the systems or groups/channels, depending upon programming. 
 This rocker type button is used to display the current SCAN status for a group/channel and 
then add or delete the group/channel from the system scan list.  
The primary function of this rocker type button is to scroll through the System list or the 
Group/Channel list depending upon programming.   
The secondary function is to 
increment or decrement items within a list (phone list for 
example). 
OPT/OPTION Toggle a PC programmable feature ON and OFF. 
CLR/CLEAR 
Exits the current operation or entry mode. 
In Conventional mode, pressing this button unmutes the receiver so activity on the selected 
channel can be monitored. 
MENU 
Primary function - 
access the menu list. This is a list of additional features that are not 
available directly from the keypad. 
Secondary function - activate a selected item within a list, similar to an enter key. 
SCAN Toggles scan operation ON and OFF. 
Pre-Set buttons 
A, B, C Used to store and recall user-selectable parameters.  
SYS  Used to enter the System select mode. 
GRP Used to enter the Group select mode. 
STS  Permits the transmission of a pre-progr
ammed status message to an EDACS or P25 
Trunked site. 
MSG  Permits the transmission of a pre-programmed message to an EDACS or P25 Trunked site. 
PHN 
Used to place telephone calls through the radio by selecting the interconnect special call 
function. 
DIS Used to show the key ID and whether or not it is valid or available. 
IND Used to call an individual or make an all-call by selecting the individual call function. 

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10.3 KEYPAD LOCK/UNLOCK  
1. Scroll through the menu until “KEY LOCK” is displayed. 
2. Press MENU. 
Press MENU and OPTION to unlock the keypad. 
10.4 RADIO STATUS ICONS 
Status icons are indicators that show the various operating characteristics of the radio.   
Figure 10-3: Typical Display 
Table 10-2: Icons and Descriptions 
ICON DESCRIPTION 
Indicates the EDACS system is in Failsoft™ mode (if enabled through 
programming).  
Indicates selected group or channel is in the scan list. 
Indicates selected group or channel is programmed as Priority 1 in scan list. 
Indicates selected group or channel is programmed as Priority 2 in scan list. 
Indicates scan mode enabled. 
Volume bars – indicates relative volume level. 
Indicates the current channel is set up as an analog channel. 
Indicates the current channel is set up as a ProVoice channel. 
Indicates the current channel is set up as a Project 25 (P25) channel. 
Indicates receiving or transmitting encrypted calls. 
Indicates a conventional channel enabled with Channel Guard Function. 

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10.5 MESSAGES 
During radio operation, various messages are displayed on either line 1 or line 2. Typical messages 
include control channel status information, such as system busy or call denied, or messages associated 
with the radio's operation, (i.e., volume adjust). These messages are described as follows: 
Table 10-3: Radio Messages 
MESSAGE  NAME DESCRIPTION 
QUEUED Call Queued Indicates the system has placed the call in a request queue. 
SYS BUSY System Busy 
Indicates the system is busy, no channels are currently available, the queue is full or an 
individual call is being attempted to a radio that is currently transmitting. 
DENIED  Call Denied Indicates the radio is not authorized to operate on the selected system. 
CC SCAN Control Channel Scan Indicates the control channel is lost and the radio has entered the Control Channel Scan mode 
to search for the control channel. 
WA SCAN Wide Area Scan Indicates the control channel is lost and the radio has entered the Wide Area Scan mode to 
search for a new system (if enabled through programming). 
T99 ON Type 99 Decode ON Indicates the Type 99 Decode feature is enabled. 
T99 OFF Type 99 Decode OFF Indicates the Type 99 Decode feature is disabled. 
*RXEMER*  Receive Emergency Indicates an emergency call is being received. This message is flashing on line 2. 
*TXEMER*  Transmit Emergency Indicates an emergency call has been transmitted. This message is flashing on line 2. 
VOL=31 Volume Level Indicates the current volume level. The volume level display ranges from OFF (silent) to 40 
(loudest). 
UNKNOWN Caller's ID Not Received Indicates that an individual call is being received, but the caller's ID was not received. 
TX DATA Transmit Data Indicates the radio is transmitting a data call. 
RX DATA Receive Data Indicates the radio is receiving a data call. Displayed on line 2. 
DATA OFF Data OFF Indicates the radio is in the data disabled state. Displayed on line 1. 
DATA ON Data ON Indicates the radio has been toggled to the data enable state. Displayed for two seconds on 
line 1 when toggled to enable state. 
SYSC ON System Scan Features 
ON Indicates the System Scan features are enabled. 
SYSC OFF System Scan Features 
OFF Indicates the System Scan features are disabled. 
PA ON Public Address ON Indicates that the public address function of the radio is enabled. 
PA OFF Public Address OFF Momentary (2 seconds) - indicates that public address function of the radio was disabled. 
ALRM ON External Alarm Enabled Indicates that the external alarm function of the radio is enabled. 
ALRM OFF External Alarm Disabled Momentary (2 seconds) - indicates that the external alarm function of the radio was disabled. 
PVT DIS Private Mode Disabled Indicates that private mode is disabled or no encryption key has been programmed for the 
selected group/channel or special call. 
FRCD PVT Forced Private 
Operation Indicates that forced private operation has been pre-programmed into radio. 
NO KEY # Encryption Key Missing Flashing - indicates that no encryption key or an incorrect encryption key is programmed into 
the radio. 
BCKL=1-6  Backlight Indicates the display intensity and keypad backlight level. 
GR Group ID Indicates that the call is a group call and is followed by the GID of the caller. 
ID Individual ID Indicates the call is an individual call and the ID number of the caller, example "ID 2725." 
WHC=1 Who Has Called 
This display indicates the number from the Who Has Called list. Individual calls received but 
not responded to are stored in a Who Has Called list. This list is accessible by pressing the # 
key and then the INDV key after the Individual call has timed out or the Clear button is 
pressed. This display is on line 2 and the LID of the caller is displayed on the top line. 
Currently the list is not implemented and the display is always WHC=1. 

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MESSAGE  NAME DESCRIPTION 
PHONE Phone Call Displayed when a phone call is received from the site. It is displayed in line 1 of the display. 
Line 2 of the display contains the display *INDV* when line 1 contains this message. The radio 
interprets a received phone call as an individual call. 
CONV FS Conventional Failsoft Displayed when a failure of the EDACS system occurs. All communication is in conventional 
mode. 
MENU   Displayed when the menu key is pressed and remains displayed in line 1 until a menu item is 
selected. 
SYS=1-64 System = 1 - 64 
The system number for the current base station of the system displayed in line 1. It is 
displayed in line 2 of the display. Press the system key to obtain this display. 
GRP=1-64 Group = 1 - 64 
The group number of the group displayed in line 2 of display. It is displayed in line 1 of the 
display. Press the group key to obtain this display. There are up to 48 groups available (i.e., 3 
banks of 16). The maximum number 
of groups programmed in a radio is determined by the 
personality. 
INDV=1-99 Individual = 1 - 99 
Indicates which item in the individual call list is being displayed. It is displayed in line 2 of the 
display. The name or ID of the item in the list is displayed in line 1 of the display. 
PHN=1-99 Phone = 1 - 99 Indicates which item in the phone list is being displayed. It is displayed in line 2 of the display. 
Line 1 of the display is the last 3 characters of the list item contents. 
SEL PHN Select Phone After pressing the PHN key, selecting an entry from the phone list by typing the entry number 
displays this message on Line 1. 
SEL INDV Select Individual ID Displayed on line 1 when an entry from the individual ID list is selected after pressing the INDV 
key. The entry is a number between 1 and 32 inclusive. 
SYS ALL System All Call Displayed on line 1 to indicate a system all-call has been received. 
Ggg-v.vv Code Group and 
Revision Number 
This is code group and revision number that is displayed in line 2 wh
en the menu item 
“REVISION” is selected. The ‘gg’ is the group number of the software. The first ‘v’ is the 
hardware version and ‘vv’ is the revision of the software. 
*PHONE* Phone Call Displayed when an initiated phone call is in progress. This is displayed on line 2 of the display. 
NO ENTRY  Indicates that there is no data stored in one of the programmable items in either the phone list 
or individual call list. The user programmable items are items 1 through 10 in each list. 
INV SYS Invalid System Displayed when the current system is an invalid type. 
CHN=1-99 Channel = 1 - 99 
Displayed on line 1 of the display. This is a conventional channel index displayed when the 
group key is pressed. 
FIX LIST Fixed List The Priority scan list is fixed and cannot be changed using the add or delete keys. 
FIXED P1 Fixed Priority 1 The Priority 1 scan channel is fixed and cannot be changed using the add or delete keys. 
EM  Emergency  Indicates an emergency has been declared by the LID that follows the display, “EM.” An 
example of this is “EM 01201.” 
*INDV* Individual Call Displayed in line 2 of the display when an individual call is in progress. 
*GROUP* Group Call Indicates a group call is in progress and is displayed on line 1 of the display. 
SPKR ON External Speaker ON Displayed when the external speaker is enabled. 
SPKR OFF External Speaker OFF Displayed when the external speaker is disabled. 
BANK=1-8   The bank of keys that are going to be loaded when the keyloader loads encryption keys. This 
is only valid for radios that support VGS, VGE, or DES encryption. It is displayed on line 2 of 
the display when the encryption keyloader is connected. 
REGR_0x Dynamic Regroup Indicates which group in the dynamic regroup operation has been enabled, where “x” is a digit 
of 1 to 8. 
KEY LOAD  Displayed on line 1 of the display when the encryption keyloader is connected. 
KEY ZERO  
Displayed on line 2 of the display when the reset and option buttons are pressed 
simultaneously for approximately two seconds. The encryption keys are zeroed. 
SYS KEY System Key Displayed on line 1 of the display in the display key mode of the menu. It is followed in the 
second line with a key number “KEY = <1..7>.” 
GRP KEY Group Key Displayed on line 1 of the display in the display key mode of the menu for trunked systems 
only. It is followed in the second line with a key number “KEY = <1..7>.” 

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MESSAGE  NAME DESCRIPTION 
KEY=1-7   
Displayed on line 2 of the display in the display key mode of the menu for conventional 
systems when the “SYS KEY” or “CHN KEY” is displayed in line 1 and for trunked systems 
when the “SYS KEY” or “GRP KEY” is displayed in line 1. 
PRIMARY  Displayed on line 1 of the display when the primary keys are enabled. 
PRS NAME Personality Name Displayed on line 1 of the display under the revision selection of the menu. The personality 
name is displayed on line 2 at the same time. 
BND SCAN Band Scan 
Only displayed if the P25T system is configured for "EnhancedCC" mode of operation. 
When the radio cannot find a Control Channel in either the trunked frequency set or the list of 
discovered adjacencies, the radio is able to perform a full spectrum frequency scan to find a 
new Control Channel. 
REGISTER   Displayed when the radio is performing a registration/affiliation on a P25 trunking site. 
10.6 ALERT TONES 
The M7300 series mobile radio provides audible alert tones to indicate the various operating conditions. 
These alert tones can be enabled or disabled through programming. 
Table 10-4: Alert Tones 
NAME 
TONE 
DESCRIPTION 
Call Originate One short mid-
pitched tone Sounds after the PTT button is pressed. 
Indicates the radio has been assigned a 
working channel. 
Autokey One mid-pitched 
tone 
After being placed in a queue or releasing the PTT button prior to a working channel 
ass
ignment, the site calls the radio when a channel becomes available.  At this point, 
the radio automatically keys the transmitter (autokey) for a short period to hold the 
channel.  The radio sounds a mid-
pitched tone when it is clear to talk.  Immediately 
press the PTT button to keep the assigned channel. 
Call Queued One high-pitched 
tone 
Sounds after pressing the PTT button indicating the system has placed the call request 
in the queue. The receiving unit(s) also sound(s) the tone to indicate they will receive a 
call shortly. 
System Busy Three low-pitched 
tones 
Sounds if the radio is keyed when the system is busy, if no channels are available for 
sending the message, if the call queue is full, or if an individual call is being attempted to 
a radio that is transmitting. 
Call Denied One low-pitched 
tone  Indicates the radio is not authorized on the system that has been selected. 
Carrier 
Control Timer 
Five short high-
pitched tones 
followed by a 
long low-pitched 
tone 
Sounds if the programmed time for continuous transmission is exceeded. The 
transmitter shuts 
down shortly after the alert, interrupting communications. Release and 
re-key the PTT button to maintain communications. This resets the carrier control timer 
and turns the transmitter back on. 
Key Press 
Alert  A short tone Indicates a key has been pressed. A short low-
pitched tone indicates no action was 
taken because the key is not active in the current mode. 
Page  
(P25T Only) Three high-
pitched tones  In P25 trunked mode, if the receiving radio accepts 
a page, both the receiving and 
transmitting radios emit three high-pitched tones. 
Out of Range One low pitched 
tone Indicates the radio is in Wide Area Scan. The radio periodically beeps when in Wide 
Area Scan. 

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10.7 MENU 
NOTE
To directly access a menu, press th
e corresponding button on the control head. For 
example, press the SYS button to enter the System select mode. Button configuration 
may vary depending on radio programming. 
The order and specific number of menu items available is configurable through programming. Upon radio 
power up, the menu item at the beginning of the menu list is always displayed first. Subsequent access to 
the menu function returns the last menu item shown in the display. To enter the menu mode, press 
MENU.   and  CLR are used during the selection process. The radio continues to receive and 
transmit normally while in the menu function. 
A new item is displayed by using the   ramp control to scroll through the list in increasing and 
decreasing order. The displayed menu item is made active by pressing MENU. 
After entering the menu, the following generic display format appears. 
M E N U 
Y Y Y Y Y Y Y Y
Line 1 indicates the radio is in the menu. Line 2 indicates the menu item (YYYYYYYY) that is to be 
viewed or changed (some menu items provide radio information and do not have changeable parameters). 
An example of the menu item selection process and menu item parameter change is detailed below for the 
brightness menu item. 
1. Press MENU to enter the menu mode. 
2. Press the   ramp control until the display shows: 
M E N U 
BACKLGHT 
3. Press MENU.  
4. Use the   ramp control to increase or decrease backlight brightness. Once the desired setting is 
reached, press MENU to store the value and return to the normal display.  
5. For menu items that display radio information, use   to scroll through a list of informational 
displays.  
The menu items are listed in Table 10-5. 
Table 10-5: Menu Item Information 
FEATURE DISPLAY PARAMETER SETTINGS  COMMENT 
Backlight Adjust Menu Item: BACKLGHT  Sets the backlight level. 
Radio Revision 
Information Menu item: REVISION Informational displays only; no 
user selectable settings. Selects the information display to view. 
Phone Call Menu item: PHONE  Allows access to the Phone Call Feature. 
Individual Call Menu Item: INDV   Allows access to the Individual Call Feature. 
External Alarm Menu Item:  EXTALARM ON, OFF EXTALARM replaces the system name on the display as 
long as the external alarm feature is enabled. 
Public 
Address Menu item: PUB ADDR   ON, OFF Public Address is toggled ON and OFF. 

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FEATURE DISPLAY PARAMETER SETTINGS  COMMENT 
External Speaker Menu item: 
EXT SPKR
 ON, OFF External Speaker is toggled ON and OFF. 
Encryption Key 
Loading Menu item: KEYLOAD  Up to 8 banks of  7 keys Enables the radio to accept the loading of encryption 
keys. 
Display Current 
Encryption Key(s) Menu item: DISP KEY  Displays current encryption key number. 
Scan  Menu item: SCAN ON, OFF Toggles scan function ON or OFF. 
Private Mode Menu Item: PRIVATE ON, OFF Toggles private function ON or OFF. 
Scan Add Menu item: SCAN ADD III, II, I Adds group or channel to scan list. 
Scan Delete Menu item: SCAN DEL  Deletes group or channel from scan list. 
Scan Add/Delete Menu item: SCAN A/D Toggle sequence 
III, II, I  Changes present group or channel to next scan choice 
in scan list. 
Last Scanned 
Channel Recall Menu Item: SCAN ADD  Changes the selected channel to the last scanned 
channel. 
Home group or 
channel selection Menu item: HOME  Changes to the group or channel defined for Home 
function. 
System select Menu item: SYS  Displays the system selected. 
System and group 
selection Menu item: S/G 1 – S/G 16  Changes to the System & Group/Channel programmed 
for SYSGRP 1-16. 
Mute Menu item: MUTE ON, OFF Toggles the mute function ON or OFF to control the 
audio output from the selected radio. 
No Data Menu item: NO DATA ON, OFF Toggles data feature ON or OFF. 
EDACS 
Conventional 
Priority 1 Scan Menu item: ECP1 SCN ON, OFF Toggles this feature ON or OFF. 
Group selection  Menu item: GRP  Displays the group selected. 
Status Condition  Menu item: STATUS 0-9 = (n)umber of pre-
programmed status Transmits the pre-programmed status message. 
Message Condition  Menu item: MESSAGE 0-9 = (n)umber of pre-
programmed messages Transmits the pre-programmed message. 
Feature Encryption 
Display Menu Item: FEATURES Informational displays only; no 
user selectable settings 
Indicates current features programmed into the radio as 
well as certain information required to add features to 
the radio. 
System Scan 
Enable Menu Item: SYS SCAN ON, OFF System Scan features like ProScan are toggled ON and 
OFF. 
Talkaround feature Menu item: TALK ON, OFF Toggles Talkaround ON or OFF (transmit frequency 
changed to receive frequency). 
Type 99 Decode 
Enable Menu Item: T99 EN ON, OFF Type 99 Decode is toggled ON and OFF. 
10.8 FEATURE ENCRYPTION DISPLAY 
Feature Encryption Display is available through the menu function and, if programmed, appears in the 
menu as “FEATURES.” This data indicates current features programmed into the radio as well as 
information required to add features to the radio.  
Once the feature has been accessed, all normal menu functions work. The user can scroll up or down 
through all of the entries. 
Feature Encryption Display provides the ability to view, in the order displayed, the following: 
• Serial number ROM data - serial number of the ROM 
• Feature encryption data stream - used to enable features 
• Number Fields - defines limits 
• Features enabled - displays bit fields of enabled features 

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10.8.1 Serial Number ROM (12 Hex Digits) 
Example: 
To enable a feature in a radio, call Harris and provide them with the ROM serial number. The serial 
number shown here is for example only. 
10.8.2 Feature Encryption Data Stream 
Example: 
These data streams define the features the user has enabled in his radio and are required by Harris to 
enable other features. The data streams shown here are for example only. Note: There are three displays: 
FD1, FD2, and FD3. All three are required. 
Number Fields 
Example: 
These number fields show the set limits of the user's radio as: 
• SG# XXX - Maximum number of system/groups combination available 
• SY# XXX - Maximum trunked system limit 
• CH# XXX - Maximum number of conventional channels available 
The user needs to know the limits of the radio before attempting to enable other features. The numbers 
shown here are for example only. 

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10.8.3 Features Enabled 
These numbers indicate which features are enabled. 
Example: 
Table 10-6 lists possible features available in the user's radio. 
Table 10-6: Available Feature Numbers 
FEATURE 
NUMBER POSSIBLE FEATURES STANDARD OR 
OPTIONAL 
01 Conventional Priority Scan Standard 
04 Group Scan (EDACS and P25 Trunked) Standard 
05 Priority System Scan (EDACS and P25 Trunked)  Optional 
06  WAscan/ProScan (EDACS and P25 Trunked) Optional 
07 Dynamic Regroup Standard 
08 EDACS Emergency Standard 
09 Type 99 Encode Standard 
10 Conventional Emergency Standard 
14 DES Encryption Optional 
16 Mobile Data  Optional 
17 Status/Message (EDACS and P25 Trunked) Optional 
21 EDACS Security Key (ESK) Optional 
22 ProFile™ (EDACS and P25 Trunked) Optional 
23 Narrowband Standard 
29  ProVoice™  Optional 
32  FIPS-140-2  Optional 
33 P25 Common Air Interface Optional 
34 Direct Frequency Entry Optional 
38 Radio TextLink Optional 
10.9 SYSTEM/GROUP/CHANNEL SELECTION 
The M7300 SYSTEM/GROUP/CHANNEL knob and the   ramp control are programmable for 
maximum flexibility. If the SYSTEM/GROUP/CHANNEL knob is assigned to select groups or channels, 
then the   ramp control is assigned to select systems. If the SYSTEM/GROUP/CHANNEL knob is 

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assigned to select systems, then the   ramp control is assigned to select groups or channels. System, 
group, and channel selection is the primary function for these controls. 
Systems or groups can also be selected by pressing SYS or GRP and using the   ramp control to 
scroll through available options. 
10.9.1 System Selection 
Several methods, some of which depend on programming, can be used to select a new system. These 
procedures are presumed to be starting from the normal receive display.  
METHOD 1: 
If system selection is programmed to the SYSTEM/GROUP/CHANNEL knob, select a 
system by turning the SYSTEM/GROUP/CHANNEL knob to the desired system 
position. The display registers the new system n
ame on line 1. If the wrap option is OFF 
and the knob is moved to a position greater than the number of programmed systems, the 
highest programmed system remains selected.  
METHOD 2: If system selection is programmed as the primary function of the   ramp control
, 
select a system by pressing up or down to scroll through the system list. The display 
registers the new system name on line 1.  
METHOD 3: Press SYS to enter the system select mode and use the   
ramp control to scroll 
through the systems.  
10.9.2 Group and Channel Selection 
Several methods, some of which depend on programming, can be used to select a new group or channel. 
These procedures assume starting from the normal receive display. 
METHOD 1: If group selection is programmed to the SYSTEM/GROUP/CHANNEL knob, select a 
group by turning the SYSTEM/GROUP/CHANNEL knob to the desired group. The 
display registers the new group name on line 2. If the wrap option is OFF and the knob 
is moved to a position greater than the number of programmed groups, the highest 
programmed group remains selected.  
METHOD 2: If group selection is programmed as the primary function of the   ramp control, 
select a group by pressing up or down, to scroll through the group list. The display 
registers the new group name on line 2. 
METHOD 3: Press GRP to enter the group select mode and use the   ramp control to 
scroll 
through different groups.  
10.10 LAST SYSTEM/GROUP/CHANNEL RECALL  
This feature, enabled through programming, allows the user to recall the last selected system/group after 
an emergency or home function or system/group key function. For example, if the Home button (pre-
programmed) is pressed, the radio goes to the designated Home system/group or channel. If the Home 
button is pressed again, the radio returns to the previous system/group or channel. At this time, the user 
can toggle between the Home system/group or channel and the previous system/group or channel. The 
operation is the same for the SG1-SG16 buttons. 

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10.11 ENCRYPTION 
The M7300 mobile radio supports AES and DES encryption.  When operating on a group or channel 
programmed for encryption, all transmissions are private and the radio receives clear and private signals. 
 is displayed when encryption is enabled. If the selected group or channel is programmed for auto-
select capability, the mode may be toggled between encrypted and unencrypted by pressing the MENU 
key, and then selecting the PRIVATE menu option. Radios programmed for forced encryption do not 
allow a change of the transmit mode. 
10.11.1 Displaying the Currently Used Cryptographic Key Number  
To display the cryptographic key currently in use for either the system encryption key (for special call 
such as individual, phone, all, agency or fleet) or the group/channel key (for group or conventional calls), 
perform the following procedure (Not Available on Conventional radios): 
1. Press the MENU button. 
2. Use   to select DISP KEY. Then press the MENU button. 
3. Then use   to toggle between displaying the system key or the group/channel key. 
Table 10-7: Current Cryptographic Key Display 
ENCRYPTION KEY 
DISPLAYED MESSAGE DISPLAYED 
System "SYS KEY" 
"KEY = 1" 
Group/Channel "GRP KEY"/"CHN KEY" 
"KEY = 2"/KEY = 2" 
10.11.2 Key Zero 
All cryptographic keys can be zeroed (erased from radio memory) by pressing  and holding the 
CLR/CLEAR button, and while still pressing this button, press and hold the OPT/OPTION button. Press 
both buttons for 2 seconds. A series of warning beeps begins at the start of this 2-second period and then 
switches to a solid tone after the keys have been zeroed. The display indicates KEY ZERO. 
If the cryptographic key(s) are zeroed, one or more keys must be transferred from the Key Loader into the 
radio before private communications can continue. Refer to Key Manager TQS3416 Administration and 
Software Release Notes for further information. 
10.11.3 Receive an Encrypted Call 
When receiving, the radio automatically switches between clear or encrypted operation. If the 
transmission being received is an encrypted transmission, it is decrypted, the receiver unsquelches, and 
the message is heard in the speaker. The selected group or channel must be programmed for encryption 
and the correct cryptographic key must be loaded into the radio for this to occur. 

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10.11.4 Transmit an Encrypted Call 
1. Select the desired group or channel. 
2. Enable encryption by pressing the MENU button and then selecting the PRIVATE menu option, or 
press the button on the control head that has been programmed for PRIVATE. 
• If the last state of the radio was encryption enabled, then encryption is enabled on power up. In 
addition, encryption is enabled if forced operation has been programmed in the radio 
• If a group or channel is not programmed for encryption, PVT DIS is displayed if an attempt is 
made to enable encryption. It is not possible to operate on this group/channel in encrypted mode. 
• If the radio is programmed for forced encryption mode, FRCD PVT is displayed if an attempt is 
made to disable encryption. It is not possible to transmit on this group/channel in clear mode. 
• If the radio does not have the correct encryption key loaded, NO KEY # is displayed and the call 
does not transmit. 
3. Continue with standard transmission procedures. An access tone is heard when the PTT button is 
pressed. 
10.12 MACRO KEY OPERATION 
Macro key operation permits the user to accomplish a series of keystrokes with a single "macro" 
keystroke. Up to ten (10) macro keys can be defined, each capable of executing up to twenty (20) 
keystrokes, to any pushbutton input (i.e., keypad keys, buttons, etc.). Each macro key can be pre-
programmed to activate when pressed or when released. A macro key can also be pre-programmed to 
change the keystroke sequence the next time the macro key is activated. For detail operation and 
assignment of macro keys, contact your system administrator. 
10.13 RECEIVE A CALL 
1. Turn the radio on by rotating the POWER ON-OFF/VOLUME knob clockwise (out of detent). A 
short alert signal (if enabled through programming) indicates the radio is ready to use. 
2. The display shows the last selected or the power up (depending on programming) system and 
group/channel names. If the radio is unable to obtain a control channel, line 2 shows CC SCAN. 
3. Adjust the volume to the desired level. 
4. Select the desired system and group/channel.  
5. The radio is now ready to receive calls. 
6. When the radio receives a call, it unmutes on the assigned working channel and the BSY indicator 
comes on. Line 1 shows GR followed by the logical ID number (if received) of the unit sending the 
message, or the associated name if the ID number is found in the individual call list. 
10.14 TRANSMIT A CALL 
1. Turn the radio on and set the POWER ON-OFF/VOLUME knob to the desired volume level. Select 
the desired system and group/channel. 
2. Ensure that conventional channels are not busy by pressing the CLR button to briefly disable any 
channel decoding and unmute the receiver, or observe the unlit BSY indicator. If the Channel Busy 
Lockout feature is programmed for the selected channel, the radio does not transmit when the channel 
is busy. 

MM-014716-001, Rev. J  
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3. Press and hold the PTT button.  
4. When the working channel is assigned, TX and BSY indicators are turned ON and a short beep is 
sounded indicating communication can begin.  
NOTE
If two or more tones, or a high-pitched tone is heard, the system may be busy and the 
call request has been placed in queue or the request has been denied for some reason. 
Refer to the Section 10.6 for more details. 
5. Hold the microphone approximately 2 inches from the mouth and speak in a normal voice. 
6. Release the PTT button when the transmission is complete and listen for a reply. 
10.15 CONVENTIONAL FAILSOFT (EDACS) 
In the unlikely event of a failure of the EDACS system, communications can take place in conventional 
failsoft mode. The radio is automatically directed to a communications channel set up for this purpose. 
During this mode of operation, the control unit displays CONV FS in the alphanumeric display. An 
increase in activity on the channel during conventional failsoft operation may be noticed, so be careful not 
to transmit until the channel is clear. 
Operation during conventional failsoft is the same as operation on a conventional system, except that it is 
not possible to select a communications channel, or use emergency and special call. When trunking is 
restored, the radio is automatically returned to normal operation. 
NOTE
Emergency and Special Call are not operational during conventional failsoft. In 
addition, the GRP control does not operate. 
10.16 EMERGENCY OPERATION 
The radio’s emergency behavior varies depending on programming. When an emergency is declared, 
scanning stops and only restarts after the emergency is cleared. 
10.16.1 Receive an Emergency Call 
When receiving an emergency call from the selected group and system, an alert beep sounds and the BSY 
indicator illuminates. The message *RXEMER* flashes in the display on line 2 until the emergency 
condition is cleared. Follow standard emergency procedures. 
10.16.2 Declare an Emergency 
To send an emergency call to the selected system and group (or on an optionally pre-programmed 
emergency group), proceed as follows: 
1. Press and hold the red emergency button for approximately one second. (This time is programmable 
and could be longer or shorter. Check with the system administrator.) The radio transmits an 
emergency call request with the radio ID until an emergency channel assignment is received. 
2. When the working channel assignment is received, the radio sounds a single beep (Autokey alert 
tone) indicating it is ready for voice transmission. *TXEMER* flashes on line 2 in the display until 
the emergency is cleared. 
3. Press PTT and speak into the microphone in a normal voice. 

 MM-014716-001, Rev. J 
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4. Release PTT when the transmission is complete and listen for a reply. 
5. The emergency can be cleared by pressing and holding the CLR button followed by pressing the red 
emergency button then releasing both buttons. 
10.17 SYSTEM SCAN OPERATION (EDACS AND P25 TRUNKED) 
The radio can be programmed with the following System Scan features. These features are automatically 
enabled upon radio power up. A key or menu option is also defined to allow the System Scan features to 
be toggled during radio operation. This is covered in the Menu Selection and Pre-Programmed Keypad 
Key sections. The System Scan state is maintained through system changes but defaults to ON at power 
up. 
10.17.1 Wide Area System Scan (WA Scan) 
The M7300 Series mobile radio can be programmed for Wide Area System Scan operation for multi-site 
applications. Upon the loss of the currently selected system's control channel, radios can be programmed 
to automatically scan the control channels of other systems. If a new control channel is found, the radio 
switches to the new system and sounds an alert tone. 
10.17.2 ProScan™ 
The radio can be programmed for ProScan™ system scan operation for multi-site applications depending 
on the version of radio flash code. ProScan provides the radio with the ability to select a new system for 
the radio to communicate on, when the selected system drops below a predefined level. This is 
accomplished by enabling each radio to analyze the signal quality of its current control channel and 
compare it with the signal quality of the control channel for each site in its adjacency scan list. The signal 
quality metric used for the ProScan algorithm is based on a combination of both Received Signal Strength 
Indicator [RSSI] and Control Channel Verification [CCV] measurements. When the selected system’s 
signal quality level degrades below a pre-programmed level, the radio begins to look for a better control 
channel. Once a control channel that exceeds the pre-programmed parameters is found, the radio changes 
to the new system and emits a tone. If the control channel is completely lost, the radio enters Wide Area 
System Scanning and searches the programmed adjacent systems until a suitable control channel is found. 
10.17.3 Priority System Scan 
The radio can also be programmed for Priority System Scan. (To ensure that this feature operates 
correctly, the control channel of the priority system must be located on channel one unless you are using 
the ProScan algorithm.)  The priority system is the desired or preferred system. While receiving the 
control channel of the selected system, the radio periodically leaves the selected system and searches for 
the control channel of the priority system at a programmable rate. The programmable rate is defined by 
the value in the Priority Scan Time control, (unless the ProScan algorithm is enabled as explained below). 
This priority scan timer is reset each time the PTT button is pressed or when a call is received. If the 
priority system control channel is found, or meets the predefined ProScan criteria, the radio automatically 
switches to the priority system. 
10.17.4 When Wide Area System Scan is Enabled 
If the radio cannot find the control channel of the selected system and begins Wide Area System Scan, the 
radio only scans for the priority system control channel if the priority system is in the WA Scan list. 

MM-014716-001, Rev. J  
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10.17.5 When ProScan Is Enabled 
The radio monitors the priority system and switches to the priority system if the priority system meets the 
criteria defined in the “ProScan Options” dialog box. If ProScan is enabled, the rate at which the radio 
scans for the priority system is defined by the System Sample Time control. 
10.17.6 Menu Selection 
Press MENU and then use the   ramp control to scroll through the selections until SYS SCAN is 
displayed. Then press MENU to toggle the System Scan state. The SYSC ON or SYSC OFF display 
message is displayed for two seconds to show the new state. 
10.17.7 Pre-Programmed Keypad Key 
Press the pre-programmed key and the SYSC ON or SYSC OFF display message is displayed for two 
seconds to show the new state. 
10.18 SCAN OPERATION 
Only groups or channels that are part of the radio's scan list are scanned. Groups/channels are added to the 
scan list on a per system basis through programming, the radio keypad, or both, dependent upon 
programming. This scan list can be changed by the user from the keypad, unless programmed otherwise. 
Each system's scan list is retained in memory when the radio is turned off. The M7300 Series mobile 
radio can also be programmed to provide Trunked Priority Group Scan capability, which operates similar 
to priority scan in Conventional mode. 
The following is a description of programmable scan features that should be helpful in understanding the 
scan operation of the radio: 
Scan Hang Time - the delay time the radio waits before resuming scan after the push-to-talk is released 
or after the carrier has dropped a channel. 
TX Select - the group the radio transmits on while scanning. The radio is programmed to transmit on 
either the scanned group or the selected group. 
Scan List (privileges) - this feature allows or prohibits scan list changes by the user. 
P1 Programming - priority group programming is accomplished by one (and only one) of three methods: 
• From the keypad, where the Priority programming is not fixed and does not follow the selected 
channel. 
• Priority 1 group programming follows the selected channel. 
• Priority 1 group programming is fixed during PC programming and cannot be changed by the user. 
P1 Always Scan - determines if the Priority 1 Group is always scanned, regardless of the scan state set by 
the user. 
10.18.1 Add Groups or Channels to a Scan List 
1. With scan operation turned off, select the desired group channel to add to the selected scan list. 
2. Press (+) or (-) with   to display the current priority status of the group on line 1 for a time-out 
period.  

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3. While the status is displayed, press (+) with   to add the group/channel to the scan list.   is 
displayed. 
4. Press (+) with   a second time to set the group/channel to Priority 2.   is displayed. 
5. Press (+) with   a third time to set the group/channel to Priority 1.   is displayed in column 1, 
line 1.  
The priority level selection sequence only advances the group to the next higher priority level and stops at 
priority level 1. To select a lower priority level, the group/channel must be deleted from the scan list and 
then added back to the scan list. Each new group/channel added to the scan list starts at the lowest 
priority. If the Priority 1 and Priority 2 group/channel are already set and a new group/channel is assigned 
as Priority 1 or Priority 2, the previously assigned group/channel changes to non-priority scanning. 
10.18.2 Delete Groups or Channels from a Scan List 
1. With scan operation turned off, select the desired group/channel to delete from the selected scan list. 
2. Press (+) or (-) with  . The current scan status of the group/channel is displayed for a time-out 
period. 
3. Press (-) with   to delete the group from the scan list.  ,   or   turns off. Any group/channel 
that is not in a scan list shows a “blank” when it is the selected group/channel. 
10.18.3 Nuisance Delete 
A group/channel can also be deleted from the scan list, if it is not the currently selected group/channel, by 
pressing (-) with   during scan operation while the radio is displaying the unwanted group/channel. 
The group/channel is deleted from the scan list in the same manner as if using the steps above. Deletions 
performed in this manner do not remain deleted if the radio is turned off and back on. 
10.18.4 Turn Scan On 
1. Toggle scan operation by pressing SCAN. The SCAN indicator turns on when the radio is scanning. 
NOTE
Scanning stops while the microphone is off-hook if the hookswitch feature is enabled 
through programming. 
2. When a group on the scan list receives a channel assignment, the radio unmutes on the assigned 
channel, the BSY indicator comes on and the received scan group is displayed. 
• The radio continues scanning if a new group/channel is selected when scan is on. 
• Pressing the PTT button when scan is on causes the radio to transmit on the displayed 
group/channel or on the currently selected group depending on programming. 
• Pressing up with   when scan is on causes the radio to recall the scanned group/channel that 
was last received. This group/channel is recalled for a period equal to the scan hang time. 

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10.18.5 Priority Group/Channel Scanning 
When scan is enabled and the Priority 1 and Priority 2 groups/channels have been identified, the radio 
listens to calls on those groups/channels and the selected group/channel. While receiving a scanned call, 
the radio continues to monitor the selected Priority 1 and Priority 2 group/channel and drops the call if the 
selected group/channel or other higher priority call becomes active. During a Priority 2 call, the radio 
continues to monitor for a Priority 1 group call. 
The radio monitors for Agency and Fleet calls that correspond to the Agency and Fleet associated with 
the Priority 1 and Priority 2 groups. Priority Agency and Fleet calls are indicated by displaying AGENCY 
or FLEET on the System line of the display and associated Priority 1 or 2 group on the Group line of the 
display. 
10.18.6 Turn Scan Off 
Turn scan operation off by pressing SCAN. The radio resumes operation on the selected group/channel. 
10.19 INDIVIDUAL CALLS (EDACS AND P25 MODES) 
10.19.1 Receive and Respond to an Individual Call 
When the radio receives an individual call, it unmutes on the assigned working channel and turns on the 
BSY indicator. Line 1 shows “ID” followed by the logical ID number of the radio sending the message, 
or the associated name if the ID number is found in the individual call list. The individual call indicator 
displays *INDV* on line 2. The radio can be programmed to ring when an individual call is received. If 
enabled, the ring begins five seconds after the caller unkeys and continues until the PTT button, the CLR 
button, or IND is pressed. 
NOTE
Hookswitch functions the same as CLR key in I-CALL, phone call, and menu modes. 
If a response is made to the call prior to the programmed call-back time-out, the call is directed to the 
originating unit. If a response is not made before the call-back time-out, the radio returns to normal 
receive mode, but * WHC * is displayed. If the caller's ID is not received, UNKNOWN displays for the 
duration of the call and there is no call-back hang time. 
To respond after the call-back time-out, press the IND key. The radio's display shows the callers ID on the 
first line and WHCI=1 on the second line. Pressing the PTT button at this point initiates an individual call 
back to the original caller. (If the last call was a group call, the display shows WHCG=1. Pressing the 
PTT button places the call as an individual call.) 
The radio stores the IDs of the last 10 callers in the Calls Received List as shown. Individual calls are 
stored in the top half of the list (1-10) and group calls are stored in the bottom half of the list (1-10). The 
most recent call is stored in position 1, the second most recent call is stored in position 2, etc. 

 MM-014716-001, Rev. J 
77 
To access the list, press the IND key twice. Use   to scroll through the list. Press the MENU key to 
display the time elapsed since the call was received. 
10.19.2 Call Storage Lists 
There are two lists available for call storage in the radio; the calls received list (1-10) and the personality 
list (1-99 as defined by the user). When the individual call mode is entered by pressing IND, the calls 
received list is available. The user can toggle to the personality list by selecting any key other than DIS or 
toggle between the two lists by pressing the IND key. If wrap is enabled, the calls received list wraps on 
itself and not into the other list. 
The saved call list shows all ten storage locations. If no calls have been received, the saved call list is 
empty and the pre-stored list is available upon entering the individual call mode. 
When in the saved call list, pressing MENU toggles the time stamp ON and OFF. The time stamp 
indicates how long ago the call was received. The display indicates this information as HH:MM:SS where 
HH = hours, MM = minutes, and SS = seconds. 
When in the pre-stored list, pressing MENU toggles the logical identification (LID) ON and OFF. 
10.19.3 Send an Individual Call 
The following procedures describe how to initiate and complete an individual call: 
1. To select a previously stored individual, select the I-Call mode from the menu or press IND followed 
by the   ramp control to scroll through the list of stored individuals. While in the individual call 
list, the MENU key toggles the display between the call name and the unit ID number. If the 
individual is not stored in this list but the individual’s unit ID is known, it can be entered directly 
from the keypad. 

MM-014716-001, Rev. J  
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2. Press the PTT button. The radio performs the necessary signaling to obtain a communication channel. 
When the signaling is complete and the radio is clear to transmit, the TX indicator turns ON and the 
channel access tone sounds. Line 1 shows the called individual's name if found in the list of stored 
individuals or ID followed by the logical ID number of the unit being called. The message *INDV* 
displays on line 2. Proceed with the message. 
10.20 SCAT™ OPERATION 
A SCAT (Single Channel Autonomous Trunking) System operates with the same set of features as a 
standard EDACS system. The only significant user change relates to the BSY indicator. Since only one 
channel, operating as both control and working channel, exists in a SCAT System, the BSY indicator is 
ON when the SCAT channel is in the working channel mode. When the transmission on the channel is 
completed, the indicator turns OFF and indicates the return of SCAT control channel signaling. 
10.21 TELEPHONE INTERCONNECT CALLS (EDACS AND P25) 
10.21.1 Receive a Telephone Interconnect Call 
Receiving a telephone interconnect call is identical to receiving an individual call. See the DTMF 
Overdial Operation section if access to services requiring "over-dial" is needed. Overdial operations are 
available for any special call whether it is an individual call or a telephone interconnect call. 
10.21.2 Send a Telephone Interconnect Call 
Use the following procedures to initiate and complete a Telephone Interconnect call: 
1. To select a previously stored phone number, select phone call mode from the menu, press PHN and 
use the   ramp control to scroll through the list of stored phone numbers. While in the phone 
call list, the MENU key toggles the display between the phone call name and the phone call number. 
If the phone number is not stored in this list but the phone number is known, it can be entered directly 
from the keypad. If necessary, a pause can be entered by pressing and holding 0-9, (*), or (#) until an 
underscore appears in the display. 
2. Press and release the PTT button; the radio performs the necessary signaling to obtain a 
communication channel. When the signaling is complete and the radio is clear to transmit, the TX 
indicator turns on and the channel access tone sounds. Line 1 shows the accompanying name if 
selected from the list of stored numbers or the phone number if entered directly. The message 
*PHONE* is displayed on line 2. The radio then automatically transmits the programmed number 
stored in the special call queue. 
3. Telephone ringing is heard. When someone answers the phone, press the PTT button and speak into 
the microphone. Release the PTT button to listen to the caller. Unsuccessful interconnect signaling 
returns the radio to the normal receive mode and the number remains displayed until the special call is 
cleared by pressing the CLR button or the time-out expires or another group or system is selected. 
4. To terminate the call, momentarily press the CLR button. 
NOTE
The  M7300 Series mobile radio is capable of half-duplex conv
ersation only. The 
caller’s message can only be sent if the PTT button is pressed (the radio is 
transmitting) and the caller can only be heard by the person being called when the PTT 
is released (the radio is receiving). 

 MM-014716-001, Rev. J 
79 
10.21.3 DTMF Overdial/Conventional Mode Telephone Interconnect 
Once the radio has established a connection to the public telephone system, it may be necessary to "over-
dial" more digits to access banking services, answering machines, credit card calls,  or other types of 
systems that require DTMF (Dual-Tone Multi-Frequency) access digits. Overdial operation can also be 
used to initiate a telephone interconnect call via DTMF signaling if a dial tone has already been accessed 
on the system. This is the method that is used for making a telephone interconnect call while operating in 
the conventional mode but also functions in trunked mode if a dial tone is directly accessible. Telephone 
numbers and other number sequences for overdialing can be stored in the phone list when programming 
the radio or stored by the operator in the first ten phone list entries. These numbers are accessed by 
pressing PHN. 
The following steps are required to dial these numbers: 
1. Follow the procedure in Section 10.21.2 to establish a connection to the telephone system or consult 
the system administrator for the procedure to access a dial tone on the trunked or conventional 
system. 
2. Overdial numbers are transmitted using either method as follows:  
METHOD 1: Press and hold PTT while entering the overdial n
umber sequence from the keypad. 
This method sends DTMF tones during individual, telephone interconnect, trunked 
group, or conventional channel calls. Anytime the PTT button is pressed and held, 
the keypad is enabled for DTMF entry.  
METHOD 2:  Press  PHN  to  access 
a stored number from the phone list or to directly enter the 
overdial digits. Press PTT to send the overdial sequence once. If the number needs to 
be transmitted again it must be selected or entered again (this prevents unwanted 
numbers from being sent the next time the PTT button is pressed during the call).  
This overdial select/entry mode remains active until the call is dropped, cleared, or MENU is pressed. The 
overdial select/entry mode can be re-entered if the call is still active by pressing PHN. 
10.21.4 Programmable Entries 
Individual call ID numbers, telephone numbers and other number sequences for overdialing are stored in 
the special call lists when programming the radio. The first ten entry locations of these lists can be 
changed by the radio operator. The keypad is used when adding, changing, and storing numbers in these 
entry locations. 
Use the following procedure to store a number in one of the first ten entries of a special call list: 
1. Press IND or PHN to enter the individual call list or the phone call list.  
2. Scroll through the list using the   ramp control until one of the first ten (10) entries is reached. 
NO ENTRY is displayed if the location is empty. 
3. Enter the desired number. If necessary, a pause can be entered by pressing and holding 0-9, (*), or (#) 
until an underscore appears in the display. The individual call list entries accept up to 5 digits. The 
phone call list entries accept a combination of up to 31 digits and pauses. 
4. Press and hold MENU until the display changes indicating that the number has been stored. 
5. Repeat the steps above if the number stored in an entry location needs to be changed. 

MM-014716-001, Rev. J  
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10.22 MOBILE DATA (EDACS AND P25 TRUNKED) 
The M7300 Series mobile radios, when operating in the EDACS or P25 Trunked configuration, permit 
either voice or data calls to be transmitted or received. The radio can handle only one type of call at a 
time; however, selection of either data or voice is transparent to the operator. Data communications is not 
supported in the conventional mode. 
The radio can be connected to a  Mobile Data Terminal (MDT) or to a host computer. Any RS-232 
compatible device that supports the Radio Data Interface (RDI) protocol (Version 1.91 or greater) can be 
connected to the mobile radio. Support for MDTs or host computers is a programmable option per radio. 
Additionally, radios programmed for host computers can also be programmed for data only operation (no 
voice calls transmitted or received). 
NOTE
Turn power to the radio OFF before connecting or disconnecting any cables, including 
the data cable. Also, turn power to the radio OFF when docking or undocking a 
connected laptop computer. Failure to turn the power OFF can damage the radio, 
requiring service by a Harris Corporation approved service center. 
10.22.1 Displays 
The following is displayed on the control unit during the various states of data mode of operation.  
TX DATA 
Displayed on bottom line of display when the radio is transmitting a data call.  
RX DATA 
Displayed on bottom line of display when the radio is receiving a data call.  
DATA OFF 
Displayed on top line of display when the radio is in the data disabled state.  
DATA ON 
Displayed for two seconds on top line of display when the radio is toggled to the data 
enabled state.  
10.22.2 DATA OFF Operation 
The radio can be placed in the data disabled state by any of the following methods. When the data state is 
disabled, the control unit displays "DATA OFF" on the top line. An ongoing data call is allowed to 
complete except when an emergency is declared. 
• Removing the microphone from the hookswitch (hookswitch option must be enabled by pre-
programming). 
• Declaring an emergency (not to be used unless an actual emergency condition exists). Alert tone 
sounds. 
• Pressing OPT/OPTION (pre-programmed). Alert tone sounds. 
• Selecting the function using the MENU button (pre-programmed). 
10.22.3 DATA ON Operation 
The data state is enabled by one of the following (depending on how it was disabled). “DATA ON” is 
displayed top line of display for 2 seconds then the display returns to normal. 
• Replacing the microphone into the hookswitch (going on-hook). Only valid if the “DATA OFF” 
operation was entered by removing the microphone from the hookswitch (going off-hook). 
• Clearing an emergency, but valid only if an emergency caused “DATA OFF” operation. 

 MM-014716-001, Rev. J 
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10.22.4 Exiting Data Calls 
Under normal conditions, the radio enters the scan lockout mode and returns to the control channel after 
completion of a data call (transmit or receive). If, during a data call, one of the following conditions 
occurs, the data call is immediately terminated and the radio performs the desired function: 
• PTT is activated. 
• The PTT is in Public Address Mode. 
• An emergency is declared by pressing the pre-programmed emergency button. 
• A group or system change is made. 
10.22.5 Scan Lockout Mode 
Following the transmission or reception of a data call, if scan is enabled, scanning stops temporarily 
(duration pre-programmed). During this time the scan LED flashes to indicate that scan is enabled but 
temporarily suspended. This mode is normally exited when the pre-programmed time expires; however, 
the following actions terminate the scan lockout mode before the timeout is completed. 
• The CLR/CLEAR button is pressed. 
• PTT is pressed. 
• A group or system change is made. 
• Enter phone call mode. 
• Enter individual call mode. 
• A new emergency assignment has been received. 
• PTT is pressed in Public Address Mode. 
• An emergency is declared or cleared. 
• Microphone is removed from hookswitch (off-hook). 
• Receiving an individual or phone call. 
• Receiving an Agency, Fleet or System All Call. 
• Pressing the SCAN button to turn scan ON or OFF. 
10.22.6 Data Lockout Mode 
The data lockout mode is a pre-programmed mode when the radio does not respond to any data channel 
assignments and prevents receive data calls from interrupting voice calls. Transmit data calls are still 
initiated when needed by the operator. After a pre-programmed time, the radio responds to receive data 
calls; however, the following conditions clear the data lockout mode: 
• The CLR/CLEAR button is pressed. 
• Transmitting a data call. 
• Changing a system. 
• An emergency is declared. 
• Pressing PTT while in Public Address Mode. 
• Turning scan ON with the SCAN button. 

MM-014716-001, Rev. J  
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10.23 STATUS/MESSAGE OPERATION (EDACS AND P25 TRUNKED) 
Status and message operation is possible with either the Scan or System version of the M7300 Series 
mobile radio unit. The following procedure is applicable for the System version. For operation with the 
Scan version, the four primary keycaps must be reconfigured and pre-programmed for status/message 
operation. 
10.23.1 Status Operation 
Status operation permits the transmission of a pre-programmed status condition to an EDACS or P25 
Trunked site. 
To send a status condition, press the STS button and then press one of the number buttons (0-9) to select 
the pre-programmed status. If no status has been programmed for the selected number button, the radio 
displays NO ENTRY and the radio sounds a low tone. A valid selection permits the status text to appear 
in the display for a pre-programmed time. After the time-out expires or the MENU button has been 
pressed (the MENU button overrides the time-out period), the status is selected and is transmitted to the 
site or stored in the radio memory where it can be polled by the site at a future time. If the site receives 
the status properly, when transmitted or polled by the site, a high-pitched tone sounds and the keylight 
associated with that status remains lit. If the site does not receive the status properly, a low-pitched tone 
sounds and the keylight associated with the status blinks. 
If an incorrect status is selected or the incorrect number button is pressed, the status can be changed 
during the pre-programmed time-out period by pressing another number button. The status selection can 
also be cancelled by pressing the CLR button prior to the time-out period. 
To view the currently selected status after it has been transmitted, press the STS button. If the status was 
not sent successfully to the site, the text associated with the status flashes in the display. 
The radio can also be pre-programmed to re-designate the keypad buttons for ST0 thru  ST9 to send 
status condition. In this configuration the radio status operation operates as previously described except 
the  STS button is not required. The keylight associated with ST0 thru  ST9 indicates which status is 
selected. 
10.23.2 Message Operation 
Message operation permits the transmission of a pre-programmed message text to an EDACS or P25 
Trunked site. 
To send a message, press the MSG button and then press one of the number buttons (0-9) to select the 
pre-programmed message text. If no message text has been programmed for the selected number button, 
the radio displays NO ENTRY and a low-pitched tone sounds. A valid selection permits the message text 
to appear in the display for a pre-programmed time. After the time-out expires or the MENU button has 
been pressed (the MENU button overrides the time-out period), the message text is selected and is 
transmitted to the site. If the site receives the message properly when transmitted, a high pitched tone 
sounds and the MSG keylight remains lit. If the site does not receive the message properly, a low-pitched 
tone sounds and the MSG keylight blinks. 
If an incorrect message text is selected or the incorrect number button is pressed, the message text can be 
changed during the pre-programmed time-out period by pressing another number button. The message 
text selection can also be cancelled by pressing the CLR button prior to the time-out period. 
To view the currently selected message text after it has been transmitted, press the MSG button and then 
the CLR button prior to the time-out period. If the message text was not sent successfully to the site, the 
text associated with the message flashes in the display. 

 MM-014716-001, Rev. J 
83 
10.24 EDACS CONVENTIONAL P1 SCAN 
This feature permits the radio user to scan a pre-programmed conventional system and channel as a 
Priority 1 (P1) channel while the radio is selected for EDACS trunked system. If activity is detected on 
the conventional P1 channel, the radio unmutes and remains on this conventional channel for the 
programmable hang time. The radio must be pre-programmed to designate a button for scan ON/OFF 
operation. 
10.25 DYNAMIC REGROUP OPERATION (EDACS) 
Dynamic regroup operation permits multiple talk groups (up to eight) to be added to a radio via the 
Communications Systems Director (CSD). The radio must be pre-programmed to respond to regrouping. 
Dynamic regrouping is not activated in a radio until an activation message is sent by the system manager. 
Each radio that receives and acknowledges regrouping instructions is successfully regrouped. 
Pressing and holding CLEAR/CLR for 2.5 seconds toggles the user into and out of the dynamic regroup 
group set. A double beep sounds for entry or exit. The display indicates REGR_0x where "x" is a digit of 
1 to 8 indicating the group when dynamic regroup has been enabled by the user. If the radio is in dynamic 
regroup and the user selects a group that has not been regrouped, the display shows NO ENTRY. The 
radio is prevented from transmitting and receiving calls in this condition except for scanned groups. 
If the pre-programmed group set on the currently selected system contains an EMER/HOME group and 
the radio is in dynamic regroup, the radio exits dynamic regroup and declares the emergency on the 
HOME group. If no EMER/HOME group is present, the radio declares the emergency on the currently 
selected dynamic regroup group. 
10.26 PAGE (P25 TRUNKED ONLY) 
Page sends a PING message to a radio and functions similar to Individual Call. The following procedures 
describe how to initiate and complete a Page. 
1. To select a previously stored individual, select PAGE from the menu followed by the   ramp 
control to scroll through the list of stored individuals. While in the individual call list, the MENU key 
toggles the display between the call name and the unit ID number. On System model radios, the 
individual’s unit ID can also be entered directly from the keypad. 
2. Press the PTT button; the radio performs the necessary signaling on the control channel. On the 
calling radio, line 1 shows the called individual's name if found in the list of stored individuals or ID 
followed by the logical ID number of the unit being called. If the receiving radio receives the Page 
and responds, both radios emits three high-pitched tones. The receiving radio also displays PAGE and 
the ID of the calling radio. 
10.27 SQUELCH ADJUST (CONVENTIONAL) 
In the conventional mode of operation, the squelch can be re-adjusted in the MENU or from a front panel 
key on the keypad that has been pre-programmed. A default value of 9, or any user level between 1 and 
16, can be selected using programming software. The user can change this setting either of two ways from 
the front panel keys. 
NOTE
A value of 16 requires a strong signal to open squelch, a value of 2 requires a very weak 
signal to open squelch, and a value of 1 is open squelch. 

MM-014716-001, Rev. J  
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NOTE
When the squelch adjust feature is activated, Channel Guard, T99 decode, and Scan are 
disabled. When the squelch adjust feature is exited, Channel Guard, T99 decode, and 
Scan are restored to their previous states. 
10.27.1 Menu Selection 
1. Press the MENU key and then use the ramp control   to scroll through the selections until 
SQUELCH is displayed. Then press MENU again. 
2. The display shows SQLCH=xx, where "xx" is the value between 1 and 16. 
3. Use the ramp control   to scroll through the values. Then press MENU to save the new value 
after the display time-out (2 seconds). The displayed value is selected and saved. 
4. If the MENU or CLR key is pressed before the time-out, the menu feature exits and the squelch level 
is not updated. The original value is restored. 
10.27.2 Pre-Programmed Keypad Key 
1. Press the pre-programmed key and the display indicates SQLCH=xx, where "xx" is the value 
between 1 and 16. 
2. Use the ramp control   to scroll through the values. Then press MENU to save the new value 
or wait for the display time-out (2 seconds). The displayed value is selected and saved. 
3. If the CLR key is pressed before the time-out, the squelch level is not updated and the original value 
is restored. 
10.28 TYPE 99 DECODE (ANALOG CONVENTIONAL) 
If the Type 99 Decode Option has been pre-programmed, individual Selective Calling is possible. The 
radio can now decode individual, group, or supergroup paging calls. Two sets of Type 99 paging codes 
must be pre-programmed into the radio. When the radio decodes an appropriate Type 99 code sequence, 
an alert tone and visual indicator is provided to the user. The receiver then operates as a noise squelched 
unit until Type 99 is reset. Type 99 decode continues to operate during this noise squelched period. The 
appropriate Type 99 alert tone sounds again if it detects a valid two-tone sequence. 
Type 99 operation can be reset manually or automatically (pre-programmed). Manual reset is achieved by 
briefly pressing CLR, if programmed. Automatic reset, if enabled, occurs after a 30 second interval 
following the most recent decode of a Type 99 tone sequence. Hookswitch (pre-programmed) can also 
enable or disable Type 99 decode. The pre-programmed key light blinks when Type 99 is disabled by the 
hookswitch. 
Type 99 decode continues to be active while the radio's CLR button is pressed. This allows the user to 
monitor calls and still be alerted when a call is directed to the user. While the user continues to press 
CLR, the user hears both calls and all Type 99 tone signals. If CLR is pressed for longer than two (2) 
seconds, Type 99 decode is either disabled or re-enabled depending upon its present state. 
To check the Type 99 enable status, press the Scan Add/Delete   ramp control. The current status of 
Type 99 decode is displayed for a time-out period.  

 MM-014716-001, Rev. J 
85 
If a Horn Alert Option is installed and enabled with the Type 99 Decode Option, the radio can beep the 
vehicle horn when a Type 99 call is received. This option permits alerting persons out of the vehicle when 
a call is received. 
NOTE
Type 99 is automatically disabled when Scan is enabled. 
10.28.1 Menu Selection 
Press MENU and then use the   ramp control to scroll through the selections until T99 ENAB is 
displayed. Then press MENU to toggle the Type 99 decode state. The T99 ON or  T99 OFF display 
message is displayed for two seconds to show the new state. 
10.28.2 Pre-Programmed Keypad Key 
Press the pre-programmed key and the T99 ON or  T99 OFF display message is displayed for two 
seconds to show the new state. 
10.29 TALK-AROUND (ANALOG CONVENTIONAL) 
Talk-around provides short range, line of sight communications.  
1. Make sure the radio is ON and then select the desired conventional system and channel. 
2. Press the pre-programmed button to toggle talk-around ON. 
3. Ensure that the channel is not busy by pressing CLR/CLEAR to briefly disable any channel decoding 
and unmute the receiver or observe the unlit BSY indicator. If the Channel Busy Lockout feature is 
programmed for the selected channel, the radio does not transmit when the channel is busy. 
4. Press and hold the PTT button. The TX indicator illuminates and a short beep sounds (if pre-
programmed) indicating that communication can begin. 
5. Release the PTT button when the transmission is complete and listen for a reply. 
6. When the communication is completed, press the pre-programmed button to toggle talk-around OFF. 
Or 
1. Make sure the radio is ON and then select the desired conventional system and channel. 
2. Select TALKARND from the menu to toggle talk-around on and off. 

MM-014716-001, Rev. J  
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11 BASIC TROUBLESHOOTING 
If the radio is not operating properly, check Table  11-1  for likely causes. For additional assistance, 
contact a qualified service technician. 
Table 11-1: Basic Troubleshooting 
SYMPTOM  CAUSE SOLUTION 
Radio will not turn on. No power. Test the connection to the vehicle power 
supply. 
Radio will not turn off. If in multiple control head 
configuration, one of the attached 
control heads is still powered up. Power off all control heads. 
Radio will not register or 
does not receive 
provisioning data. Bad logon credentials. Check logon and password. 
No audio. Speaker volume is muted. Increase the volume level. 
Poor audio. Transmitting or receiving in a poor 
coverage area or subject to 
interference. 
Check network connectivity and move to a 
better coverage area if possible. Report the 
area without coverage to an authorized network 
technician. 
No network connectivity 
icon in display. 
Radio is out-of-range or cannot 
connect with the OpenSky network. 
Base station network connection has 
failed. 
Return to coverage area if possible and wait for 
condition to clear. 
Use single-site trunking or switch to an 
alternate channel. 
Radio will not transmit. Radio may be out of coverage area or 
may be overheated. 
Return to coverage area if possible. If 
overheated, let radio cool before retrying 
transmission. Report this failure to an 
authorized technician. 
“Warning: No MRU” 
Message. 
Radio control head is unable to 
communicate with mobile radio unit 
(radio transceiver). 
Have the radio connections checked by an 
authorized technician. 
Control head randomly 
changes display. 
In multiple control head 
configurations, another user is 
operating the radio from another 
control head. 
None 
Encrypted calls cannot 
be made. Not authorized to use. Contact system administrator to request 
encryption privileges. 
Screen displays: 
UNAUTH3 
The radio network ID has not been 
added to the network. Contact system administrator. 
Screen displays: 
NOAUTHV 
Radio authentication of the VNIC 
failed. Contact system administrator. 
Screen displays: 
NOAUTHM 
VNIC authentication of the radio 
failed. Contact system administrator. 
Screen displays: 
NOSUPRT 
The voice authentication security 
policy is set to only allow 
authenticated users. Contact system administrator. 
Encrypted calls cannot 
be made. User not logged in. Log in (refer to Section 9.15.2). 

 MM-014716-001, Rev. J 
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12 CUSTOMER SERVICE 
12.1 CUSTOMER CARE 
If any part of the system equipment is damaged on arrival, contact the shipper to conduct an inspection 
and prepare a damage report.  Save the shipping container and all packing materials until the inspection 
and the damage report are completed.  In addition, contact the Customer Care center to make 
arrangements for replacement equipment.  Do not return any part of the shipment until you receive 
detailed instructions from a Harris representative. 
Contact the Customer Care center at http://www.pspc.harris.com/CustomerService or: 
North America: 
Phone Number:  1-800-368-3277 
Fax Number:   1-321-409-4393 
E-mail: PSPC_CustomerFocus@harris.com  
International: 
Phone Number:  1-434-455-6403 
Fax Number:  1-321-409-4394 
E-mail: PSPC_InternationalCustomerFocus@harris.com  
12.2 TECHNICAL ASSISTANCE 
The Technical Assistance Center's (TAC) resources are available to help with overall system operation, 
maintenance, upgrades and product support. TAC is the point of contact when answers are needed to 
technical questions. 
Product specialists, with detailed knowledge of product operation, maintenance and repair provide 
technical support via a toll-free (in North America) telephone number. Support is also available through 
mail, fax and e-mail.  
For more information about technical assistance services, contact your sales representative, or call the 
Technical Assistance Center at: 
North America:   1-800-528-7711 
International:    1-434-385-2400 
Fax:      1-434-455-6712 
E-mail:     PSPC_tac@harris.com 

MM-014716-001, Rev. J  
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13 KEYPAD REMAPPING 
If the keys have been remapped to provide new functions, fill in the following template for future reference. 
BUTTON FUNCTION BUTTON
FUNCTION 
Emergency  1   
Preset A  2   
Preset B  3   
Preset C  4   
Rocker 
•
  5   
Rocker 
••
  6   
Rocker 
+
  7   
Rocker 
-
  8   
MENU  9   
OPT/OPTION  *   
CLR/CLEAR  0   
SCAN  #   

 MM-014716-001, Rev. J 
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14 RADIO SETUP 
RADIO TYPE: 
FREQUENCY BAND: 
OPERATOR'S NAME: 
EMERGENCY GROUP:  
SYSTEM NUMBER SYSTEM NAME TRK/CNV GRP/CHN NUMBER GRP/CHN NAME  USE 

MM-014716-001, Rev. J  
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SYSTEM NUMBER SYSTEM NAME TRK/CNV GRP/CHN NUMBER GRP/CHN NAME  USE 

 MM-014716-001, Rev. J 
91 
SYSTEM NUMBER SYSTEM NAME TRK/CNV GRP/CHN NUMBER GRP/CHN NAME  USE 

MM-014716-001, Rev. J  
92 
WARRANTY 
Please register this product within 10 days of purchase.  Registration validates the warranty coverage, and 
enables Harris to contact you in case of any safety notifications issued for this product.  
Registration can be made on-line at http://www.pspc.harris.com/Service/Warranty . Support.asp
A. Harris Corporation, a Delaware Corporation, through its RF Communications Division (hereinafter "Seller") 
warrants to the original purchaser for use (hereinafter "Buyer") that Equipment manufactured by or for the 
Seller shall be free from defects in material and workmanship, and shall conform to its published 
specifications. With respect to all non-Seller Equipment, Seller gives no warranty, and only the warranty, if 
any, given by the manufacturer shall apply.  Rechargeable batteries are excluded from this warranty but are 
warranted under a separate Rechargeable Battery Warranty (ECR-7048). 
B. Seller’s obligations set forth in Paragraph C below shall apply only to failures to meet the above warranties 
occurring within the following periods of time from date of sale to the Buyer and are conditioned on Buyer’s 
giving written notice to Seller within thirty (30) days of such occurrence: 
1. for fuses and non-rechargeable batteries, operable on arrival only. 
2. for parts and accessories (except as noted in B.1 and B.5), ninety (90) days. 
3. for XG-25P,  XG-75,  P7300,  P7200, P7100IP,  P5500,  P5400, P5300, P5200, P5100, P3300,  M7300, 
M7200 (including V-TAC), M7100IP,  M5300,  M3300 and SG5300 radios, two (2) years, effective 
10/01/2007. 
4. for Unity® XG-100P and XG-100M, three (3) years. 
5. for Six-Bay battery Chargers (12082-0314-xx and CH-104570-xxx), one (1) year. 
6.  for all other equipment of Seller’s manufacture, one (1) year. 
C. If any Equipment fails to meet the foregoing warranties, Seller shall correct the failure at its option (i) by 
repairing any defective or damaged part or parts thereof, (ii) by making available at Seller’s factory any 
necessary repaired or replacement parts, or (iii) by replacing the failed Equipment with equivalent new or 
refurbished Equipment. Any repaired or replacement part furnished hereunder shall be warranted for the 
remainder of the warranty period of the Equipment in which it is installed. Where such failure cannot be 
corrected by Seller’s reasonable efforts, the parties will negotiate an equitable adjustment in price. Labor to 
perform warranty service will be provided at no charge during the warranty period only for the Equipment 
covered under Paragraph B.3, B.4 and B.5. To be eligible for no-charge labor, service must be performed at 
Seller’s factory, by an Authorized Service Center (ASC) or other Servicer approved for these purposes either 
at its place of business during normal business hours, for mobile or personal equipment, or at the Buyer’s 
location, for fixed location equipment. Service on fixed location equipment more than thirty (30) miles (48 km) 
from the Service Center or other approved Servicer’s place of business will include a charge for 
transportation. 
D. Seller’s obligations under Paragraph C shall not apply to any Equipment, or part thereof, which (i) has been 
modified or otherwise altered other than pursuant to Seller’s written instructions or written approval or, (ii) is 
normally consumed in operation or, (iii) has a normal life inherently shorter than the warranty periods 
specified in Paragraph B, or (iv) is not properly stored, installed, used, maintained or repaired, or, (v) has 
been subjected to any other kind of misuse or detrimental exposure, or has been involved in an accident. 
E. The preceding paragraphs set forth the exclusive remedies for claims based upon defects in or nonconformity 
of the Equipment, whether the claim is in contract, warranty, tort (including negligence), strict liability or 
otherwise, and however instituted. Upon the expiration of the warranty period, all such liability shall terminate. 
The foregoing warranties are exclusive and in lieu of all other warranties, whether oral, written, expressed, 
implied or statutory. NO IMPLIED OR STATUTORY WARRANTIES OF MERCHANTABILITY OR FITNESS 
FOR PARTICULAR PURPOSE SHALL APPLY. IN NO EVENT SHALL THE SELLER BE LIABLE FOR ANY 
INCIDENTAL, CONSEQUENTIAL, SPECIAL, INDIRECT OR EXEMPLARY DAMAGES. 
This warranty applies only within the United States. 
Harris Corporation Harris Corporation 
RF Communications Division RF Communications Division 
221 Jefferson Ridge Parkway 1680 University Avenue 
Lynchburg, VA 24501 Rochester, NY 14610 
1-800-368-3277  1-585-244-5830 
ECR-7047R 
