HARRIS TR-0062-E M7300 440-512MHz 50W User Manual Manual 1

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Installation and Product Safety Manual

MM-014763-001

Rev. G, Sep/10

M7300 Series Mobile Radios

M7300 (700/800 MHz)

M7300 VHF 50-Watt

M7300 440 to 512 MHz 50-Watt

Front and Remote-Mount

Mobile Radios

Includes

CH-721 Scan and System

Control Heads

and

HHC-731 Hand-Held

Controller

MM-014763-001, Rev. G

MANUAL REVISION HISTORY

REV. DATE REASON FOR CHANGE

F Jun/10 Revised introduction, antenna part numbers and antenna installation procedures,

specifications, catalog and part number tables, and cable installation procedures. Added

HHC-731 hand-held controller.

G Sep/10 Revised antenna part numbers and the respective MPE distance data. Added 44

0 to

512 MHz (high-split UHF) radio.

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

Harris, assuredcommunications, OpenSky and EDACS are registered trademarks of and ProVoice is a trademark of Harris

Corporation.

AMBE is a registered trademark and IMBE, AMBE+, and AMBE+2 are trademarks of Digital Voice Systems, Inc. Bird is a

registered trademark of Bird Electronic Corporation. Microsoft and Windows are registered trademarks of Microsoft

Corporation. SmartSiren is a registered trademark of Federal Signal Corporation.

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 Commence 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 Business, 221 Jefferson Ridge Parkway, Lynchburg, VA 24501.

The voice coding technology embodied in this product is protected by intellectual property rights including patent rights,

copyrights, and trade secrets of Digital Voice Systems, Inc. The user of this technology is explicitly prohibited from

attempting to decompile, reverse engineer, or disassemble the Object Code, or in any other way convert the Object Code into

human-readable form.

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 and 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.

MM-014763-001, Rev. G

TABLE OF CONTENTS

Section Page

1 REGULATORY AND SAFETY INFORMATION .................................................................................... 7

1.1 SAFETY SYMBOL CONVENTIONS ................................................................................................. 7

1.2 RF ENERGY EXPOSURE AWARENESS AND CONTROL INFORMATION FOR FCC

OCCUPATIONAL USE REQUIREMENTS........................................................................................ 7

1.2.1 Federal Communications Commission Regulations ............................................................... 8

1.3 COMPLIANCE WITH RF EXPOSURE STANDARDS ...................................................................... 8

1.3.1 Mobile Antennas .................................................................................................................. 13

1.3.2 Approved Accessories .......................................................................................................... 14

1.3.3 Contact Information .............................................................................................................. 14

1.4 OCCUPATIONAL SAFETY GUIDELINES AND SAFETY TRAINING INFORMATION ........... 14

1.5 COMMON HAZARDS ...................................................................................................................... 14

1.6 SAFE DRIVING RECOMMENDATIONS ........................................................................................ 15

1.7 OPERATING RULES AND REGULATIONS .................................................................................. 16

1.8 OPERATING TIPS ............................................................................................................................. 16

2 SPECIFICATIONS ..................................................................................................................................... 17

2.1 GENERAL .......................................................................................................................................... 17

2.2 TRANSCEIVER ................................................................................................................................. 18

2.3 REGULATORY ................................................................................................................................. 20

3 INTRODUCTION ....................................................................................................................................... 21

3.1 GENERAL DESCRIPTION ............................................................................................................... 21

3.2 RELATED PUBLICATIONS ............................................................................................................. 24

3.3 REPLACEMENT PARTS .................................................................................................................. 24

3.4 TECHNICAL ASSISTANCE ............................................................................................................. 25

4 UNPACKING AND CHECKING THE EQUIPMENT ........................................................................... 26

4.1 MATERIALS ..................................................................................................................................... 26

4.2 MATERIAL INSPECTION ................................................................................................................ 27

5 PLANNING THE INSTALLATION ......................................................................................................... 37

5.1 GENERAL INFORMATION ............................................................................................................. 37

5.2 TOOLS REQUIRED .......................................................................................................................... 37

5.3 LOCATING COMPONENTS ............................................................................................................ 40

6 ANTENNA INSTALLATION .................................................................................................................... 41

6.1 ANTENNA MOUNTING LOCATIONS ........................................................................................... 41

6.1.1 Direct Center or Center-Rear of Rooftop ............................................................................. 41

6.1.2 Center of Trunk Lid .............................................................................................................. 41

6.1.3 Rear Deck Lid for Stand-Alone GPS Receive Antenna ....................................................... 41

6.2 ANTENNA INSTALLATION PROCEDURES ................................................................................. 44

6.2.1 Installing NMO Antenna Mounts AN-125001-001, -002, -003 and -004 ............................ 44

6.2.2 Installing NMO Magnetic Antenna Mounts AN-125001-007 and AN-125001-008 ............ 47

6.2.3 Installing All Other Antenna Mounts ................................................................................... 47

6.2.4 Attaching NMO Antenna Elements ...................................................................................... 47

6.2.5 Installing the Coax Cable and TNC RF Connector .............................................................. 48

6.2.6 Install GPS Antenna (Required Only if Radio has GPS Receiver Option)........................... 49

7 FRONT-MOUNT RADIO INSTALLATION ........................................................................................... 51

7.1 MOUNTING THE FRONT-MOUNT RADIO ................................................................................... 51

7.1.1 Mounting Bracket Installation .............................................................................................. 53

7.1.2 Inserting the Radio into the Mounting Bracket .................................................................... 55

7.2

FRONT-MOUNT

RADIO’S

POWER

INSTALLATION ............................................................ 55

MM-014763-001, Rev. G

TABLE OF CONTENTS

Section Page

7.2.1 Overview of On/Off Power Wiring Configurations .............................................................. 55

7.2.2 DC Power Cable and Main Fuse Holder Installation ............................................................ 56

7.3 TERMINATE CAN PORTS ............................................................................................................... 60

8 REMOTE-MOUNT RADIO INSTALLATION ....................................................................................... 61

8.1 MOUNTING THE REMOTE-MOUNT RADIO ................................................................................ 61

8.1.1 Mounting Bracket Installation .............................................................................................. 63

8.1.2 Inserting the Radio into the Mounting Bracket ..................................................................... 65

8.2 REMOTE-MOUNT RADIO’S DC POWER INSTALLATION ......................................................... 65

8.2.1 Overview of On/Off Power Wiring Configurations .............................................................. 65

8.2.2 DC Power Cable and Main Fuse Holder Installation ............................................................ 68

8.2.3 Additional Hook-Up Required for a Data-Only Radio Installation ...................................... 70

8.3 CH-721 CONTROL HEAD INSTALLATION ................................................................................... 71

8.3.1 General Information .............................................................................................................. 71

8.3.2 Control Head Mechanical Installation .................................................................................. 73

8.3.3 Control Head-to-Radio CAN Cable Connections ................................................................. 74

8.3.4 Control Head Power Cable Installation ................................................................................ 76

8.3.5 Using Vehicle Fuse and T-Tap Kit (Optional) Instead of Waterproof Inline Fuse

Holder (Standard) ................................................................................................................. 79

8.4 HHC-731 HAND-HELD CONTROLLER INSTALLATION ............................................................ 80

8.4.1 Mounting the HHC-731 Interface Cable and Bracket ........................................................... 81

8.4.2 Connecting CAN Link .......................................................................................................... 82

8.4.3 Connecting DC Power .......................................................................................................... 83

8.4.4 Mounting the HHC-731 Hanger ........................................................................................... 86

8.4.5 Connecting the HHC-731 to the HHC-731 Interface Cable ................................................. 86

8.4.6 Connecting a Siren/Light Control System ............................................................................ 86

9 SPEAKER INSTALLATION ..................................................................................................................... 87

9.1 FRONT-MOUNT RADIO INSTALLATION..................................................................................... 87

9.2 REMOTE-MOUNT RADIO INSTALLATION ................................................................................. 87

9.2.1 With CH-721 Control Head .................................................................................................. 87

9.2.2 With HHC-731 Hand-Held Controller .................................................................................. 88

10 MICROPHONE ATTACHMENT ............................................................................................................. 89

11 OPTIONAL CABLES ................................................................................................................................. 90

11.1 M5300/M7300 OPTION CABLE CA-012349-001 ............................................................................ 90

11.2 SERIAL PROGRAMMING CABLE CA-013671-020 ....................................................................... 94

11.3 CH-721 OPTION CABLE CA-011854-001 ........................................................................................ 95

11.4 ACCESSORY CABLE 19B802554P24 .............................................................................................. 96

11.5 CH-721 SERIAL PROGRAMMING CABLE CA-104861 ................................................................. 97

11.6 HHC-731 INTERFACE CABLE CA-018399-001.............................................................................. 98

11.7 SPEAKER-ONLY OPTION CABLE CA-012349-007 ...................................................................... 99

12 GPS NMEA-FORMATTED SERIAL DATA CONNECTION ............................................................. 100

13 INITIAL POWER-UP TEST .................................................................................................................... 101

14 PERFORMANCE TESTS ........................................................................................................................ 102

14.1 CHANGING OPERATING MODE FOR TESTS............................................................................. 102

14.1.1 Changing from OpenSky to Conventional .......................................................................... 102

14.1.2 Changing from Conventional to OpenSky .......................................................................... 103

14.2 REQUIRED TEST EQUIPMENT .................................................................................................... 104

14.3

TRANSMITTING

INTO

DUMMY

LOAD .................................................................................. 104

MM-014763-001, Rev. G

TABLE OF CONTENTS

Section Page

14.4 TRANSMITTING

INTO

THE

MOBILE

ANTENNA ...................................................................... 106

14.5 TEST PERFORMANCE DATA FORM ........................................................................................... 109

15 COMPLETE THE INSTALLATION ..................................................................................................... 110

16 WARRANTY REGISTRATION ............................................................................................................. 110

17 WARRANTY ............................................................................................................................................. 111

LIST OF FIGURES

Page

Figure 5-1: Typical Front-Mount Mobile Radio Installation in a Standard Passenger Vehicle .......................... 38

Figure 5-2: Typical Remote-Mount Mobile Radio Installation in a Standard Passenger Vehicle ....................... 38

Figure 5-3: M7300 Front-Mount and Remote-Mount Mobile Radios — Front and Rear Views ........................ 39

Figure 6-1: Recommended Antenna Mounting Locations with Antenna Part Numbers ..................................... 44

Figure 6-2: Installing a Standard ¾-Inch NMO Antenna Mount (e.g., AN-125001-001 or AN-125001-002) ... 46

Figure 6-3: Installing a Thick-Roof NMO Antenna Mount (e.g., AN-125001-003 or AN-125001-004) ........... 47

Figure 6-4: Crimping Instructions for TNC RF Connector ................................................................................. 49

Figure 7-1: Front-Mount M7300 Radio Dimensions ........................................................................................... 52

Figure 7-2: Front-Mount Mounting Bracket Kit KT101533V1 .......................................................................... 53

Figure 7-3: Mounting Bracket FM101319V1 (Marked KTB0310) Dimensions [for Front-Mount M7300

Mobile Radio (Radio Not Shown)] .............................................................................................. 54

Figure 8-1: Remote-Mount M7300 Radio Dimensions ....................................................................................... 62

Figure 8-2: Remote-Mount Mounting Bracket Kit KT23117 ............................................................................. 63

Figure 8-3: Mounting Bracket FM103111V1 Dimensions [for Remote-Mount M7300 Mobile Radio

(Radio Not Shown)] ..................................................................................................................... 64

Figure 8-4: Wiring Diagram for a Remote-Mount Radio Installation ................................................................. 66

Figure 8-5: CH-721 Scan Model Control Head Front Panel ............................................................................... 71

Figure 8-6: CH-721 System Model Control Head Front Panel ........................................................................... 72

Figure 8-7: CH-721 Rear Panel (both control head models) ............................................................................... 72

Figure 8-8: Standard U-Shaped Control Head Mounting Bracket (Kit Part Number KT-008608) ..................... 73

Figure 8-9: Optional Control Head Mounting Pedestal (Part Number MACDOS0012) ..................................... 73

Figure 8-10: CAN Link Connections for a Single Control Head Installation ..................................................... 75

Figure 8-11: Typical CAN Link Connections for a Multi-Control Head Installation ......................................... 75

Figure 8-12: Contents of Vehicle Fuse and T-Tap Kit FS24473 ......................................................................... 79

Figure 8-13: Attaching T-Tap Terminals to a Switched Power Wire .................................................................. 80

Figure 8-14: HHC-731 Hand-Held Controller Front View ................................................................................. 81

Figure 8-15: HHC-731 Interface Cable Mounting Bracket Kit KT-018752-001 ................................................ 81

Figure 8-16: HHC-731 Interface Cable Mounting Bracket-to-Cable Positioning ............................................... 82

Figure 8-17: M7300-to-HHC-731 CAN Link Connections ................................................................................ 83

Figure 10-1: Attaching the Microphone to the CH-721Control Head ................................................................. 89

Figure 11-1: M5300/M7300 Option Cable CA-012349-001 ............................................................................... 90

Figure 11-2: Serial Programming Cable CA-013671-020 ................................................................................... 94

Figure 11-3: CH-721 Option Cable CA-011854-001 .......................................................................................... 95

Figure 11-4: Accessory Cable 19B802554P24.................................................................................................... 96

Figure 11-5: Programming Cable CA-104861 .................................................................................................... 97

Figure 11-6: HHC-731 Interface Cable CA-018399-001 .................................................................................... 98

Figure 11-7: Speaker-Only Option Cable CA-012349-007 ................................................................................. 99

Figure 14-1: Wattmeter Connections for Antenna System Tests ...................................................................... 105

(Continued)

MM-014763-001, Rev. G

LIST OF TABLES

Page

Table 1-1: Recommended Minimum Safe Lateral Distance from Transmitting Antenna Connected to a

VHF M7300 Mobile Radio (“M7300 VHF 50-Watt”) .................................................................. 9

Table 1-2: Recommended Minimum Safe Lateral Distance from a Transmitting Antenna Connected to a

High-Split UHF M7300 Mobile Radio (“M7300 440 to 512 MHz 50-Watt”) ............................ 10

Table 1-3: Recommended Minimum Safe Lateral Distance from a Transmitting Antenna Connected to a

700/800 MHz M7300 Mobile Radio [“M7300 (700/800 MHz)”] ............................................... 11

Table 3-1: Radio Systems/Standards Supported by the M7300 Mobile Radio .................................................... 21

Table 4-1: M7300 Mobile Radio Catalog and Part Numbers .............................................................................. 26

Table 4-2: CH-721 Control Head Catalog and Part Numbers ............................................................................. 26

Table 4-3: AES and DES Encryption Catalog Numbers for M7300 Mobile Radios ........................................... 27

Table 4-4: Installation Kit MAMW-NZN6W for Front-Mount M7300 Mobile Radio ....................................... 28

Table 4-5: Installation Kit MAMW-NZN7R for Remote-Mount M7300 Mobile Radio with CH-721

Control Head ................................................................................................................................ 29

Table 4-6: HHC-731 Hand-Held Controller and Installation Components — Installation Kit MAMW-

NCP9P ......................................................................................................................................... 31

Table 4-7: Additional Options and Accessories for M7300 Mobile Radios ........................................................ 33

Table 4-8: Additional Options and Accessories for CH-721 Control Heads ....................................................... 36

Table 11-1: M5300/M7300 Option Cable CA-012349-001 Interconnections ..................................................... 91

Table 14-1: Required Test Equipment ............................................................................................................... 104

MM-014763-001, Rev. G

1 REGULATORY AND SAFETY INFORMATION

1.1 SAFETY SYMBOL CONVENTIONS

The following conventions are used in this manual to alert the user to general safety precautions that must

be observed during all phases of operation, installation, service, and repair of this product. Failure to

comply with these precautions or with specific warnings elsewhere 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 damage to the

equipment or severely degrade equipment performance.

NOTE

The NOTE symbol calls attention to supplemental information, which may improve

system performance or clarify a process or procedure.

1.2 RF ENERGY EXPOSURE AWARENESS AND CONTROL

INFORMATION FOR FCC OCCUPATIONAL USE REQUIREMENTS

Before using the two-way mobile radio, review the following important RF energy awareness and

control information and operational instructions. Comply with this information and instructions in

order to ensure compliance with RF exposure guidelines.

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 remain below RF exposure limits. This radio is NOT authorized for

general population, consumer, or any other use.

Changes or modifications not expressly approved by Harris

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

WARNING

CAUTION

MM-014763-001, Rev. G

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. Refer to the

following websites for more information on what RF energy exposure is and how to control 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

1.2.1 Federal Communications Commission Regulations

Before it was marketed in the United States, the M7300 two-way mobile radio was tested to ensure

compliance with FCC RF energy exposure limits for two-way mobile radios. 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. The radio has an RF exposure product label.

Also, this Installation and Product Safety Manual and the applicable Operator’s Manual include

information and operating instructions required to control RF exposure and to satisfy compliance

requirements.

1.3 COMPLIANCE WITH RF EXPOSURE STANDARDS

The M7300 two-way mobile radio is designed and tested to comply with a number of national and

international standards and guidelines 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-cycle times of up to 50% (50% transmit, 50% receive), and it is authorized by the

FCC for occupational use. In terms of measuring RF energy for compliance with the FCC exposure

guidelines, the radio’s antenna radiates measurable RF energy only while it is transmitting (talking), not

when it is receiving (listening), or in a standby mode.

The M7300 two-way mobile 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).

Table 1-1 through Table 1-3 list the recommended minimum safe lateral distances for a

controlled environment and for unaware bystanders in an uncontrolled environment,

from transmitting 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 safe lateral distance

away from the transmitting antenna.

CAUTION

MM-014763-001, Rev. G

Based on the highest radiated RF power and the highest antenna gain in antennas to be used with M7300,

the distances listed in Table 1-1 through Table 1-3 are considered as safe distances for controlled and

uncontrolled environments with the M7300 mobile radio transmitting at a maximum 50% duty cycle:

Table 1-1: Recommended Minimum Safe Lateral Distance from Transmitting Antenna

Connected to a VHF M7300 Mobile Radio (“M7300 VHF 50-Watt”)

ANTENNA

PART NUMBER ANTENNA DESCRIPTION

RECOMMENDED MINIMUM LATERAL HUMAN BODY

DISTANCE FROM TRANSMITTING ANTENNA

CONTROLLED

ENVIRONMENT UNCONTROLLED

ENVIRONMENT

AN102800V1 136 to 941 MHz, ¼-Wavelength*,

Standard Rooftop-Mount;

0 dBd Gain

24.8 Inches

(63 Centimeters) 55.1 Inches

(140 Centimeters)

AN102800V2

(Discontinued)

136 to 941 MHz, ¼-Wavelength*,

Thick Rooftop-Mount;

0 dBd Gain

AN-025147-001

(Discontinued)

136 to 174 MHz,

Standard Rooftop-Mount;

0 dBd Gain

AN-025147-003

(Discontinued)

136 to 174 MHz,

GPS Combo Rooftop-Mount;

0 dBd Gain

AN-025147-005

(Discontinued)

136 to 174 MHz,

Magnetic-Mount;

0 dBd Gain

AN-125001-001

(mount) with

AN-225002-001

(element)

136 to 174 MHz,

Standard Rooftop-Mount;

0 dBd Gain

AN-125001-003

(mount) with

AN-225002-001

(element)

136 to 174 MHz,

Thick Rooftop-Mount;

0 dBd Gain

AN-125001-007

(mount) with

AN-225002-001

(element)

136 to 174 MHz,

Magnetic-Mount;

0 dBd Gain

* Driven elements of AN102800V1 and AN102800V2 must be trimmed to proper lengths in order to minimize antenna

system VSWR.

MM-014763-001, Rev. G

Table 1-2: Recommended Minimum Safe Lateral Distance from a Transmitting Antenna

Connected to a High-Split UHF M7300 Mobile Radio (“M7300 440 to 512 MHz 50-Watt”)

ANTENNA

PART NUMBER ANTENNA DESCRIPTION

RECOMMENDED MINIMUM LATERAL HUMAN BODY

DISTANCE FROM TRANSMITTING ANTENNA

CONTROLLED

ENVIRONMENT UNCONTROLLED

ENVIRONMENT

AN-125001-001

(mount) with

AN-225004-001

(element)

450 to 512 MHz Standard

Rooftop-Mount;

0 dBd Gain

20 Inches

(51 Centimeters) 45 Inches

(114 Centimeters)

AN-125001-001

(mount) with

AN-225004-004

(element)

450 to 512 MHz Standard

Rooftop-Mount;

Low-Profile 0 dBd Gain

AN-125001-003

(mount) with

AN-225004-001

(element)

450 to 512 MHz Thick

Rooftop-Mount;

0 dBd Gain

AN-125001-003

(mount) with

AN-225004-004

(element)

450 to 512 MHz Thick

Rooftop-Mount;

Low-Profile 0 dBd Gain

AN-125001-005

(mount) with

AN-225004-001

(element)

450 to 512 MHz GPS Combo

Rooftop-Mount;

0 dBd Gain

AN-125001-005

(mount) with

AN-225004-004

(element)

450 to 512 MHz GPS Combo

Rooftop-Mount;

Low-Profile 0 dBd Gain

AN-125001-007

(mount) with

AN-225004-001

(element)

450 to 512 MHz Magnetic-Mount;

0 dBd Gain

AN-125001-007

(mount) with

AN-225004-004

(element)

450 to 512 MHz Magnetic-Mount;

Low-Profile 0 dBd Gain

AN102800V1 136 to 941 MHz, ¼-Wavelength*,

Standard Rooftop-Mount;

0 dBd Gain

* Driven elements of AN102800V1 must be trimmed to proper lengths in order to minimize antenna system VSWR.

MM-014763-001, Rev. G

Table 1-3: Recommended Minimum Safe Lateral Distance from a Transmitting Antenna

Connected to a 700/800 MHz M7300 Mobile Radio [“M7300 (700/800 MHz)”]

ANTENNA

PART NUMBER ANTENNA DESCRIPTION

RECOMMENDED MINIMUM LATERAL HUMAN BODY

DISTANCE FROM TRANSMITTING ANTENNA

CONTROLLED

ENVIRONMENT UNCONTROLLED

ENVIRONMENT

AN-125001-002

(mount) with

AN-225001-001

(element)

700/800 MHz Standard

Rooftop-Mount;

3 dBd Gain

9.8 Inches

(25 Centimeters) 21.7 Inches

(55 Centimeters)

AN-125001-002

(mount) with

AN-225001-002

(element)

700/800 MHz Standard

Rooftop-Mount;

Elevated-Feed 3 dBd Gain

AN-125001-002

(mount) with

AN-225001-003

(element)

700/800 MHz Standard

Rooftop-Mount;

Elevated-Feed, No Ground Plane

3 dBd Gain

AN-125001-002

(mount) with

AN-225001-004

(element)

700/800 MHz Standard

Rooftop-Mount;

Low-Profile 2 dBd Gain

AN-125001-002

(mount) with

AN-225001-005

(element)

700/800 MHz Standard

Rooftop-Mount;

5 dBd Gain

11.8 Inches

(30 Centimeters) 23.6 Inches

(60 Centimeters)

AN-125001-004

(mount) with

AN-225001-001

(element)

700/800 MHz Thick

Rooftop-Mount;

3 dBd Gain

9.8 Inches

(25 Centimeters) 21.7 Inches

(55 Centimeters)

AN-125001-004

(mount) with

AN-225001-002

(element)

700/800 MHz Thick

Rooftop-Mount;

Elevated-Feed 3 dBd Gain

AN-125001-004

(mount) with

AN-225001-003

(element)

700/800 MHz Thick

Rooftop-Mount;

Elevated-Feed, No Ground Plane

3 dBd Gain

AN-125001-004

(mount) with

AN-225001-004

(element)

700/800 MHz Thick

Rooftop-Mount;

Low-Profile 2 dBd Gain

AN-125001-004

(mount) with

AN-225001-005

(element)

700/800 MHz Thick

Rooftop-Mount;

5 dBd Gain

11.8 Inches

(30 Centimeters) 23.6 Inches

(60 Centimeters)

(Table Continued on Next Page)

MM-014763-001, Rev. G

Table 1-3: Recommended Minimum Safe Lateral Distance from a Transmitting Antenna

Connected to a 700/800 MHz M7300 Mobile Radio [“M7300 (700/800 MHz)”]

ANTENNA

PART NUMBER ANTENNA DESCRIPTION

RECOMMENDED MINIMUM LATERAL HUMAN BODY

DISTANCE FROM TRANSMITTING ANTENNA

CONTROLLED

ENVIRONMENT UNCONTROLLED

ENVIRONMENT

AN-125001-006

(mount) with

AN-225001-001

(element)

700/800 MHz GPS Combo

Rooftop-Mount;

3 dBd / 5.15 dBi Gain

9.8 Inches

(25 Centimeters) 21.7 Inches

(55 Centimeters)

AN-125001-006

(mount) with

AN-225001-002

(element)

700/800 MHz GPS Combo

Rooftop-Mount;

Elevated-Feed 3 dBd Gain

AN-125001-006

(mount) with

AN-225001-003

(element)

700/800 MHz GPS Combo

Rooftop-Mount;

Elevated-Feed, No Ground Plane

3 dBd Gain

AN-125001-006

(mount) with

AN-225001-004

(element)

700/800 MHz GPS Combo

Rooftop-Mount;

Low-Profile 2 dBd Gain

AN-125001-006

(mount) with

AN-225001-005

(element)

700/800 MHz GPS Combo

Rooftop-Mount;

5 dBd / 7.15 dBi Gain

11.8 Inches

(30 Centimeters) 23.6 Inches

(60 Centimeters)

AN-125001-008

(mount) with

AN-225001-001

(element)

700/800 MHz Magnetic-Mount;

3 dBd Gain

9.8 Inches

(25 Centimeters) 21.7 Inches

(55 Centimeters)

AN-125001-008

(mount) with

AN-225001-002

(element)

700/800 MHz Magnetic-Mount;

Elevated-Feed 3 dBd Gain

AN-125001-008

(mount) with

AN-225001-003

(element)

700/800 MHz Magnetic-Mount;

Elevated-Feed, No Ground Plane

3 dBd Gain

AN-125001-008

(mount) with

AN-225001-004

(element)

700/800 MHz Magnetic-Mount;

Low-Profile 2 dBd Gain

AN-125001-008

(mount) with

AN-225001-005

(element)

700/800 MHz Magnetic-Mount;

5 dBd Gain 11.8 Inches

(30 Centimeters) 23.6 Inches

(60 Centimeters)

(Table Continued on Next Page)

MM-014763-001, Rev. G

Table 1-3: Recommended Minimum Safe Lateral Distance from a Transmitting Antenna

Connected to a 700/800 MHz M7300 Mobile Radio [“M7300 (700/800 MHz)”]

ANTENNA

PART NUMBER ANTENNA DESCRIPTION

RECOMMENDED MINIMUM LATERAL HUMAN BODY

DISTANCE FROM TRANSMITTING ANTENNA

CONTROLLED

ENVIRONMENT UNCONTROLLED

ENVIRONMENT

AN102800V1 136 to 941 MHz, ¼-Wavelength**,

Standard Rooftop-Mount;

0 dBd Gain 9.8 Inches

(25 Centimeters) 21.7 Inches

(55 Centimeters)

AN102800V2

(Discontinued)

136 to 941 MHz, ¼-Wavelength**,

Thick Rooftop-Mount;

0 dBd Gain

AN-025167-001

(Discontinued) 700/800 MHz Standard

Rooftop-Mount; 3 dBd Gain

11 Inches

(28 Centimeters) 27.2 Inches

(69 Centimeters)

AN-025167-002

(Discontinued) 700/800 MHz Elevated-Feed

Rooftop-Mount; 3 dBd Gain

AN-025167-004

(Discontinued) 700/800 MHz GPS Combo

Rooftop-Mount; 3 dBd Gain

AN-025167-005

(Discontinued)

700/800 MHz GPS Combo

Elevated-Feed Rooftop-Mount;

3 dBd Gain

AN-025167-006

(Discontinued) 700/800 MHz Magnetic-Mount;

3 dBd Gain 11.4 Inches

(29 Centimeters) 28.3 Inches

(72 Centimeters)

AN-025167-010

(Discontinued) 700/800 MHz Low-Profile

Rooftop-Mount; 2 dBd Gain 11 Inches

(28 Centimeters) 27.2 Inches

(69 Centimeters)

AN-025167-011

(Discontinued)

700/800 MHz GPS Combo

Low-Profile Rooftop-Mount;

2 dBd Gain

AN-025167-014

(Discontinued) 700/800 MHz Standard

Rooftop-Mount; 5 dBd Gain 15.4 Inches

(39 Centimeters) 34.3 Inches

(87 Centimeters)

AN-025167-015

(Discontinued) 700/800 MHz GPS Combo

Rooftop-Mount; 5 dBd Gain

STI-Co

CCAS-SB-700

760 - 820 MHz Concealed Peal-

and-Stick Internal-Mount;

0 dBi Gain

7.9 Inches

(20 Centimeters) 19.7 Inches

(50 Centimeters)

* Driven elements of AN102800V1 and AN102800V2 must be trimmed to proper lengths in order to minimize antenna

system VSWR.

1.3.1 Mobile Antennas

The antenna(s) for the radio must be installed in accordance with Section 6 in this manual. Refer to Figure

6-1 on page 44 for applicable antenna part numbers. Installation guidelines presented in Section 6 are

limited to metal-body motor vehicles or vehicles with appropriate ground planes.

Use only approved/supplied antenna(s) or an approved replacement antenna. Unauthorized antennas,

modifications, or attachments can cause the FCC RF exposure limits to be exceeded.

MM-014763-001, Rev. G

1.3.2 Approved Accessories

The radio has been tested and meets FCC RF guidelines when used with accessories supplied or

designated for use with it. 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 Section

4 in this manual (begins on page 26) and/or the Products and Services Catalog.

1.3.3 Contact Information

For additional information on RF exposure and other information, contact Harris using one of the contact

links listed in Section 3.4 on page 25.

1.4 OCCUPATIONAL SAFETY GUIDELINES AND SAFETY TRAINING

INFORMATION

To ensure bodily exposure to RF electromagnetic energy is within the FCC allowable limits for

occupational use. Always adhere to the following basic guidelines:

• The push-to-talk button should only be depressed when intending to send a voice message.

• The radio should only be used for necessary work-related communications.

• The radio should only be used by authorized and trained personnel. It should never be operated by

children.

• Do not attempt any unauthorized modification to the radio. Changes or modifications to the radio may

cause harmful interference and/or cause it to exceed FCC RF exposure limits. Only qualified

personnel should service the radio.

• Always use only authorized accessories (antennas, control heads, speakers/mics, etc.). Use of

unauthorized accessories can cause the FCC RF exposure compliance requirements to be exceeded.

The information listed above provides the user with information needed to make him or her aware of a RF

exposure, and what to do to assure that this radio operates within the FCC exposure limits of this radio.

1.5 COMMON HAZARDS

The operator of any mobile radio should be aware of certain hazards common to

the operation of vehicular radio transmissions. Possible hazards include but are

not limited to:

• Explosive Atmospheres — Just as it is dangerous to fuel a vehicle while its engine is running, be

sure to turn the radio OFF while fueling the vehicle. If the radio is mounted in the trunk of the

vehicle, DO NOT carry containers of fuel in the trunk.

Areas with potentially explosive atmosphere are often, but not always, clearly marked. Turn the radio

OFF 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 Electronic Systems — Electronic fuel injection systems, electronic anti-

skid braking systems, electronic cruise control systems, etc., are typical of the types of electronic

devices that can malfunction due to the lack of protection from radio frequency (RF) energy present

when transmitting. If the vehicle contains such equipment, consult the dealer for the make of vehicle

and enlist his aid in determining if such electronic circuits perform normally when the radio is

transmitting.

WARNING

MM-014763-001, Rev. G

• Electric Blasting Caps — To prevent accidental detonation of electric blasting caps, DO NOT use

two-way radios within 1000 feet (305 meters) of blasting operations. Always obey the “Turn Off

Two-Way Radios” (or equivalent) signs posted where electric blasting caps are being used. (OSHA

Standard: 1926.900).

• Radio Frequency Energy — To prevent burns or related physical injury from radio frequency

energy, do not operate the transmitter when anyone outside of the vehicle is within the minimum safe

distance from the antenna as specified in Table 1-1 (for VHF radios) and Table 1-3 (for 700 and

800 MHz radios). Refer to Section 1.2 for additional information.

• Vehicles Powered By Liquefied Petroleum (LP) Gas — Radio installation in vehicles powered by

liquefied petroleum gas, where the LP gas container is located 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. This requires:

 The space containing the radio equipment must be isolated by a seal from the space containing

the LP gas container and its fittings.

 Outside filling connections must be used for the LP gas container.

 The LP gas container space shall be vented to the outside of the vehicle.

• Vehicles Equipped with Airbags — For driver and passenger safety, avoid mounting the radio’s

control head (or any other component) above or near airbag deployment areas. In addition to driver-

side and passenger-side front-impact airbags, some vehicles may also be equipped with side-impact

airbags. For occupant safety, verify the location of all airbags within the vehicle before installing the

radio equipment.

1.6 SAFE DRIVING RECOMMENDATIONS

The American Automobile Association (AAA) advocates the following key safe driving recommenda-

tions:

• 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-014763-001, Rev. G

1.7 OPERATING RULES AND REGULATIONS

Two-way 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). Operators of two-way radio equipment

must be thoroughly familiar with the rules that apply to the 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 a two-way radio, remember these rules:

• It is a violation of FCC rules to interrupt any distress or emergency message. The radio operates in

much the same way as a telephone “party line.” Therefore, always listen to make sure 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, do not

transmit unless assistance can be offered.

• 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 keeping conversations brief and confined to business. Use coded messages whenever

possible to save time.

• Using the radio to send personal messages (except in an emergency) is a violation of FCC rules. Send

only essential messages.

• It is against Federal law to repeat or otherwise make known anything overheard on the radio.

Conversations between others sharing the channel must be regarded as confidential.

• The FCC requires self-identification at certain specific times by means of call letters. Refer to the

rules that apply to the 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.

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.

1.8 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, communication improvement may

sometimes be obtained by moving a few yards in another direction, or moving to a

higher elevation.

CAUTION

NOTE

MM-014763-001, Rev. G

2 SPECIFICATIONS1

2.1 GENERAL

Dimensions, Front-Mount Mobile Radio: 2.4 x 6.9 x 11.3 inches (6.1 x 17.5 x 28.7 centimeters)

(Height x Width x Depth) (Includes knobs but not space required for mounting

bracket and cables at rear of radio)

Dimensions, Remote-Mount Mobile Radio: 2.0 x 6.9 x 9.2 inches (5.1 x 17.5 x 23.4 centimeters)

(Height x Width x Depth) (Does not include space required for mounting bracket

and cables at rear of radio)

Dimensions, CH-721 Control Head: 2.4 x 6.9 x 3.9 inches (6 x 17.5 x 10 centimeters)

(Height x Width x Depth) (Does not include bracket and mounting screws)

Dimensions, HHC-731 Hand-Held Controller: 4.7 x 2.5 x 1.2 inches (11.9 x 6.4 x 3.1 centimeters)

(Height x Width x Depth) (Does not include coiled cable and mic hanger)

Weight, Front-Mount Mobile Radio: 5.9 pounds (2.68 kilograms), does not include bracket

Weight, Remote-Mount Mobile Radio: 5.25 pounds (2.38 kilograms), does not include bracket

Weight, CH-721 Control Head: 1.25 pounds (0.57 kilograms), does not include bracket

Weight, HHC-731 Hand-Held Controller: 0.65 pounds (0.29 kilograms), includes coiled cable

Operating Ambient Temperature Range: -22 to +140° Fahrenheit (-30 to +60° Celsius)

Storage Temperature Range: -40 to +185° Fahrenheit (-40 to +85° Celsius)

Altitude: 15,000 feet (4572 meters) maximum

DC Supply Voltage Operating Ranges

For Full Performance: +13.6 Vdc ±10% (Normal range per TIA-603)

Overall Operating Range: +10.8 to +16.6 Vdc

Continuous without Damage: 0 to +17 Vdc

DC Supply Current Requirements:

Receive (includes CH-721 control head):

With Speaker Muted: 1.1 amps maximum

With 0.5-Watt Speaker Output Power: 1.5 amps maximum

With 10-Watt Speaker Output Power: 3.5 amps maximum

With 15-Watt Speaker Output Power: 4.0 amps maximum

Transmit (includes CH-721 control head):

VHF Radio at 10 Watts RF: 8.9 amps maximum, 8.5 amps typical

VHF Radio at 20 Watts RF: 9.6 amps maximum, 9 amps typical

VHF Radio at 50 Watts RF: 15 amps maximum, 11 amps typical

UHF-H Radio at 50 Watts RF: 15 amps maximum, 13 amps typical

700 & 800 MHz Radio at 15 Watts RF: 8 amps maximum, 6 amps typical

700 & 800 MHz Radio at 35 Watts RF: 15 amps maximum, 12 amps typical

HHC-731 Hand-Held Controller: 0.5 amps maximum

Quiescent/Off Currents:

Mobile Radio: 2 milliamps maximum

CH-721 Control Head: 100 microamps maximum

1 These specifications are primarily intended for the use of the installation technician. See the appropriate Specifications

Sheet for the complete specifications.

MM-014763-001, Rev. G

HHC-731 Hand-Held Controller: 500 microamps maximum

2.2 TRANSCEIVER

Frequency Ranges of VHF Radio:

Receive: 136 to 174 MHz

Transmit: 136 to 174 MHz

Frequency Ranges of UHF-H Radio:

Receive: 440 to 512 MHz

Transmit: 440 to 512 MHz

Frequency Ranges of 700 & 800 MHz Radio:

Receive:

700 MHz Operation: 764 to 767 MHz, 769 to 775 MHz and 773 to 776 MHz

(repeater and talk-around operations) [See footnote 2]

800 MHz Operation: 851 to 869 MHz (repeater and talk-around operations)

Transmit:

700 MHz Talk-Around Operation: 764 to 767 MHz, 769 to 775 MHz and 773 to 776 MHz

700 MHz Repeater Operation: 794 to 797 MHz, 799 to 805 MHz and 803 to 806 MHz

[See footnote 3]

800 MHz Talk-Around Operation: 851 to 869 MHz

800 MHz Repeater Operation: 806 to 824 MHz

Transmit RF Output Power of VHF Radio:

136 to 174 MHz RF Channels: 10 to 50 watts (programmable range)

Transmit RF Output Power of UHF-H Radio:

440 to 512 MHz RF Channels: 8 to 50 watts (programmable range)

Transmit RF Output Power of 700 & 800 MHz Radio:

700 MHz Band RF Channels: 1.5 to 19 watts (programmable range)

800 MHz Band RF Channels: 5 to 35 watts (programmable range)

Channel Spacing: 12.5 kHz or 25 kHz or 30 kHz (mode dependent)

Voice and Data Communications Modes: Half-Duplex

Frequency Stability: ±1.5 ppm with AFC disabled; ±0.5 ppm with AFC

2 764 to 767 MHz and 773 to 776 MHz per old FCC 700 MHz band plan. 769 to 775 MHz added August 30, 2007 by new

FCC 700 MHz band plan.

3 764 to 767 MHz, 773 to 776 MHz, 794 to 797 MHz and 803 to 806 MHz per old FCC 700 MHz band plan. 769 to

775 MHz and 799 to 805 MHz added August 30, 2007 by new FCC 700 MHz band plan.

MM-014763-001, Rev. G

Receiver Sensitivity:

VHF P25 Mode (TIA-102 Method): -116 dBm minimum at 5% BER (static)

UHF-H P25 Mode (TIA-102 Method): -116 dBm minimum at 5% BER (static)

VHF EDACS & Conventional Modes: -119 dBm minimum at 12 dB SINAD (25 kHz channels)

UHF-H EDACS & Conventional Modes: -119 dBm minimum at 12 dB SINAD (25 kHz channels)

UHF-H OTP Mode: -111 dBm minimum at 1% BER (static)

700 MHz OTP Mode: -111 dBm minimum at 1% BER (static)

800 MHz OTP Mode: -111 dBm minimum at 1% BER (static)

700 MHz P25 Mode (TIA-102 Method): -116 dBm minimum at 5% BER (static)

800 MHz P25 Mode (TIA-102 Method): -116 dBm minimum at 5% BER (static)

700 MHz EDACS Mode: -119 dBm minimum at 12 dB SINAD

800 MHz EDACS Mode: -118 dBm minimum at 12 dB SINAD

Receiver Intermodulation Rejection: 77 dB typical

Audio Frequency Response: 300 to 3000 Hz (transmit and receive)

Microphone Input Sensitivity: 82 ±28 mV rms (typical)

Microphone Maximum Input Level: 2500 mV peak-to-peak

Microphone Input Impedance: 600 ohms

Microphone Audio Frequency Response: ±0.5 dB from 100 Hz to 3000 Hz

Microphone Connector: 17-pin Conxall-style flush-mount thumbscrew-locking

connector located on front panel of CH-721 control head

Microphone Types Available: Standard, DTMF, and Noise-Canceling

Speaker Audio Output Power: 15 watts RMS minimum into 4-ohm external speaker

Speaker Audio Output Distortion: < 5% at 15 watts RMS into 4-ohm external speaker

Headset Audio Output Power

At CH-721 Microphone Connector: 1 watt minimum into 4-ohm headset/speaker

At CH-721 DB-25 Rear Panel Connector: 35 milliwatts maximum into 24-ohm headset

At HHC-731 DB-25 Connector: 1 watt minimum into 8-ohm headset/speaker

External Speaker Connection

Local Control (Front-Mount Radio): 2-pin audio connector on radio’s option cable

Remote Control (Trunk-Mount Radio): 2-pin audio connector on rear of control head

Remote Control with HHC-731: DB-44 connector on rear of radio

Mic A-D and Speaker D-A Audio Conversion

CODEC Audio Sampling Rate: 8 kHz

CODEC Algorithm (Vocoding Method): Sigma-Delta (∑∆)

Voice-Coding Method

OTP Mode: Advanced Multi-Band Excitation (AMBE)

EDACS, ProVoice and P25 Modes: Improved Multi-Band Excitation (IMBE®)

P25 Phase 1 Mode: Advanced Multi-Band Excitation Plus (AMBE+)

MM-014763-001, Rev. G

Data Rate

OTP Mode: 19.2 kbps (9600 symbols per second)

EDACS and ProVoice Modes: 9.6 kbps

P25 Mode: 4800 symbols/second

2.3 REGULATORY

FCC Type Acceptance

VHF Radio: OWDTR-0055-E

UHF-H Radio: OWDTR-0062-E

700 and 800 MHz Radio OWDTR-0051-E

Applicable FCC Rules: Part 15 and Part 90

Industry Canada Certification

VHF Radio: 3636B-0055

UHF-H Radio: 3636B-0062

700 and 800 MHz Radio 3636B-0051

Applicable Industry Canada Rules: RSS-119

MM-014763-001, Rev. G

3 INTRODUCTION

This manual contains installation procedures for the M7300 mobile radio, the CH-721 control heads, and

the HHC-731 hand-held controller. Procedures cover the mounting and cabling of the equipment, as well

as the basic in-vehicle test procedures. In addition, product safety-related information is included.

3.1 GENERAL DESCRIPTION

The M7300 mobile radio is a high-performance digital mobile radio. Shown in Figure 5-3 on page 39, the

M7300 mobile radio is available in a VHF-band radio, a high-split (440 to 512 MHz) UHF band radio,

and a dual-band 700 and 800 MHz radio. Supported radio systems/standards are listed in Table 3-1 below.

The M7300 is designed to operate in a mobile environment, typically within a motor vehicle. It must be

connected to an external transmit/receive antenna such as one mounted to the vehicle’s rooftop or trunk

lid. Several different types of external-mount antennas are approved and available for use with the radio,

as listed in Table 1-1 (for VHF radios) and Table 1-3 (for 700 and 800 MHz radios), and in Table 4-7.

Front-mount and remote-mount M7300 radio configurations are available. In the front-mount

configuration, the control head is an integral part of the mobile radio. In the remote-mount configuration,

the control head is located near the radio operator’s position and the radio is mounted remotely from the

control head, typically in the vehicle’s trunk. As described later in this section, an HHC-731 hand-held

controller can be connected to a remote-mount radio, in place of the CH-721 control head. The remote-

mount radio is shown in Figure 5-3 on page 39.

Table 3-1: Radio Systems/Standards Supported by the M7300 Mobile Radio

RADIO SYSTEM/STANDARD VHF

M7300 RADIO

(136 to 174 MHz)

UHF

M7300 RADIO

(440 to 512 MHz)

DUAL-BAND

M7300 RADIO

(700 and 800 MHz)

APCO Project 25 (P25) Trunked   

APCO Project 25 (P25) Conventional   

OpenSky® — — 

Enhanced Digital Access Communications

System (EDACS®) and ProVoice™   

Conventional FM Repeater-Based

and FM Talk-Around   

 = Supported.

The VHF M7300 radio can provide 50 watts of transmit output power in full-power transmit mode on 136

to 174 MHz band channel.

The high-split UHF M7300 radio can provide 50 watts of transmit output power in full-power transmit

mode on 440 to 512 MHz band channel.

The dual-band 700 and 800 MHz M7300 radio can provide 19 watts of transmit output power in full-

power transmit mode in the 700 MHz band, and 35 watts in the 800 MHz band.

MM-014763-001, Rev. G

Control heads used with the M7300 radio include the CH-721 Scan and the CH-721 System model

control heads. See Figure 8-5 (page 71) through Figure 8-7 (page 72). Both heads feature a large 3-line

graphical vacuum-fluorescent display, front panel controls and buttons/keys for user control of the mobile

radio, an internal high-power audio amplifier to drive an externally-connected speaker, and a front panel

microphone connector. The CH-721 System control head also has a 12-button numeric keypad that

provides Dual-Tone Multi-Frequency (DTMF) functionality and easier operator system/group selection

control at the control head’s front panel.

In a remote-mount M7300 mobile radio installation, the HHC-731 hand-held controller can be used in

place of the CH-721 control head. This easy-to-use hand-held mobile radio controller is primarily

designed for use in harsh environments such as maritime (i.e., boating) applications and All-Terrain

Vehicle (ATV) applications. The HHC-731 hand-held controller has easy-to-use buttons, a tough liquid-

crystal display (LCD), and a built-in microphone. As of the publication of this manual, only one (1)

HHC-731 hand-held controller can be connected to a radio, and without any connected CH-721 control

heads. The front of the HHC-731 hand-held controller is shown in Figure 8-14 on page 81.

The remote-mount M7300 radio is designed for remote mounting in a motor vehicle’s trunk, or some

other preferably unoccupied section in a vehicle, such as a fire truck’s equipment shelf. Up to four (4)

control heads can be connected to a front-mount M7300, and up to five (5) control heads can be

connected to a remote-mount M7300. The radio is remotely controlled by a control head(s) connected to

it via 3-wire Controller Area Network (CAN) cables. Between the radio and control head(s), the CAN

link carries digitized microphone and speaker audio, controlling data such as button presses and radio

messages, and user data such as that for a mobile data terminal connected to the serial port of the radio or

control head. For proper operation, the CAN link must be terminated appropriately on each end. In

multiple control head installations, two or more control heads are interconnected to the mobile radio in a

series (“daisy-chain”) fashion via CAN link cables.

As shown in Figure 8-7 on page 72, the CH-721 Scan and System model control heads used in remote-

mount radio installations have several connectors located on the head’s rear panel. These connectors

include a DC power connector, two (2) CAN port connectors used for CAN link interconnections, an

external speaker connector, a 9-pin serial port connector for connecting optional equipment such as a

mobile data terminal, and a 25-pin accessory connector. Both CH-721 models can interface to an optional

Federal Signal Electronic siren/light control system for broadcasting via a public address (PA) speaker.

The radio and control head/hand-held controller must be powered by an external +13.6-volt (nominal) DC

power source. In mobile applications, the motor vehicle’s electrical system is utilized as the source of DC

power. In a remote-mount radio installation, the CH-721 control head(s) or the HHC-731 hand-held

controller connected to the radio is also powered by the same DC power source, but separately fused.

When the control head/hand-held controller is powered-up by the operator, it “wakes up” the radio by

transmitting data to the radio via the CAN link.

The radio provides half-duplex voice and data communications. Voice communications are accomplished

via a “push-to-talk” (PTT) type microphone and an external speaker connected to the control head. The

HHC-731 hand-held controller has an integrated microphone and PTT button/key. When a control head is

employed in a mobile radio installation, an audio amplifier in the head drives the speaker. When the hand-

held controller is employed, an audio amplifier in the remote-mounted mobile radio drives the speaker.

For data communications, the radio has an industry-standard 9-pin serial interface port for connecting

optional data-type equipment, such as a Mobile Data Terminal (MDT), a laptop PC, an external display,

or a key-entry device. This port works seamlessly with equipment from popular manufacturers and off-

the-shelf applications. OpenSky employs User Datagram Protocol over Internet Protocol (UDP/IP) data

packet transfers, providing “plug and play” connectivity for data-type devices.

The radio has an optional built-in Global Positioning System (GPS) tracking receiver. On an OpenSky

trunked radio network, the GPS tracking receiver can provide quick and accurate unit location

MM-014763-001, Rev. G

information to dispatchers via the radio network. The GPS receiver determines the unit’s location and the

radio transmits it to the network, either when polled by the network or automatically on a predetermined

periodic basis. The GPS antenna can be integrated into the mobile transmit/receive antenna (i.e., a

“combination” antenna). Alternately, the GPS antenna can be located/mounted completely separate from

the mobile transmit/receive antenna.

The M7300 mobile radio, the CH-721 control head and the HHC-731 hand-held controller exceed tough

environmental specifications included within military standard MIL-STD-810F, the radio industry

standard TIA/EIA-603, and the radio standard established by the U.S. Forest Service.

An M7300 radio operating on an OpenSky radio network uses Time-Division Multiple-Access (TDMA)

digital modulation technology on the radio frequency link. TDMA allows multiple radio users to share a

single RF channel. In addition, a single RF channel can support simultaneous digital voice and data

communications.

OpenSky employs Advanced Multi-Band Excitation (AMBE®) speech and data compression technology

developed by Digital Voice Systems, Inc. When operating on an OpenSky radio network, AMBE gives

an M7300 the ability to provide exceptional voice quality via the limited bandwidth of the radio

frequency path, even when the received RF signal is weak (i.e., even in “fringe” areas). AMBE is

performed by a Digital Signal Processor (DSP) integrated circuit within the radio programmed to perform

an AMBE compression algorithm during mobile transmissions, and an AMBE expansion algorithm

during mobile reception.

Speech compression electronic circuitry—be it AMBE or another type such as IMBE®—is sometimes

referred to as “vocoding” circuitry for voice coding, or simply a “vocoder” circuit.

The M7300 mobile radio supports operation on APCO Project 25 phase I compliant Common Air

Interface (P25 CAI) trunked radio networks, and operation in a talk-around mode in accordance with the

APCO Project 25 phase I standard. P25 radio systems utilize Improved Multi-Band Excitation (IMBE)

speech and data compression technology, also developed by Digital Voice Systems, Inc.

Like AMBE technology, IMBE technology allows the M7300 to deliver exceptional voice quality, even

in areas where the received RF signal strength is weak. IMBE replicates human speech better than other

voice compression technologies, resulting in better voice quality and better speaker recognition. The

Telecommunications Industry Association (TIA) funded an independent study to evaluate compression

technologies. The findings showed that when compared with other industry-recognized compression

technologies, IMBE provided the highest voice quality. In the study, radio users were asked to listen to

coded speech produced by four different compression technologies (i.e., vocoder circuits) operating under

a variety of conditions. The users rated the speech on a scale of one to five, with five being the best

quality. Under each operating conditions, IMBE was rated the best.

The M7300 mobile radio can also operate using Harris’ digital voice technology called ProVoice. Like

P25 radio systems, ProVoice also employs IMBE technology.

EDACS and ProVoice trunked radio networks employ analog FM and 2-level Gaussian Frequency-Shift

Keying (GFSK) modulation techniques on the RF channels. Data is transmitted on an RF channel at a

9600 bits-per-second rate.

For over-the-air secure radio communications, the M7300 mobile radio may be equipped for 64-bit DES

(Data Encryption Standard) encryption or 128/256-bit AES (Advanced Encryption Standard) encryption.

With encryption, voice and/or user data signals transmitted and received by the radio on an RF channel

are digitally encrypted (“scrambled”) to virtually eliminate unauthorized monitoring via the RF channel.

MM-014763-001, Rev. G

Harris recommends the buyer use only an authorized representative to install and

service this product. The warranties provided to the buyer under the terms of sale shall

be null and void if this product is installed or serviced improperly, and Harris shall have

no further obligation to the buyer for any damage caused to the product or to any person

or personal property.

3.2 RELATED PUBLICATIONS

The following publications contain additional information about the M7300 mobile radio:

•

Quick Guide for OpenSky mode:

MM-014368-001

• Quick Guide for EDACS, Conventional and P25

(ECP) modes:

MM-014369-001

•

Operator’s Manual for all modes:

MM-014716-001

• Operator’s Manual for HHC-731 hand-held

controller: MM-018321-001

• Maintenance Manual for VHF radio

(includes CH-721 maintenance manual):

MM-017065-001

• Maintenance Manual for 700 and 800 MHz radio

(includes CH-721 maintenance manual):

MM-014718-001

Both quick guides are included with each mobile radio equipment package when it ships from the factory.

Operator manuals, installation manuals, maintenance manuals, and quick guides are available at

www.pspc.harris.com via a Information Center login and Tech Link.

3.3 REPLACEMENT PARTS

Replacement parts can be ordered through the Customer Resource Center. To order replacement parts

through the Customer Resource Center, call, fax or e-mail our ordering system:

United States and Canada:

• Phone Number: 1-800-368-3277 (toll free)

• Fax Number: 1-800-833-7592 (toll free)

• E-mail: PSPC_CustomerFocus@harris.com

International:

• Phone Number: 1-434-455-6403

• Fax Number: 1-434-455-6676

• E-mail: PSPC_InternationalCustomerFocus@harris.com

CAUTION

MM-014763-001, Rev. G

3.4 TECHNICAL ASSISTANCE

If any of the radio equipment requires repair, or if there are questions or concerns about the installation of

this equipment, contact the Harris Technical Assistance Center (TAC) using the following telephone

numbers or e-mail address:

• United States and Canada: 1-800-528-7711 (toll free)

• International: 1-434-385-2400

• Fax: 1-434-455-6712

• E-mail: PSPC_tac@harris.com

MM-014763-001, Rev. G

4 UNPACKING AND CHECKING THE EQUIPMENT

4.1 MATERIALS

A typical set of materials for an M7300 mobile radio installation includes:

• M7300 Mobile Radio — See Table 4-1 below for catalog and part numbers.

• CH-721 Scan or System Control Head — See Table 4-2 below for catalog and part numbers.

• Installation Kit MAMW-NZN6W for Front-Mount M7300 — Contents listed in Table 4-4.

or:

• Installation Kit MAMW-NZN7R for Remote-Mount M7300 and CH-721 — Contents listed in

Table 4-5.

• One or Two Antennas — As listed in Table 4-7. (A second antenna is required for the GPS receiver.)

• Microphone — See Table 4-8 for microphone part numbers.

In some cases, the radio may be supplied with an HHC-731 hand-held controller instead of a CH-721

control head and a microphone. In this case, the HHC-731 hand-held controller and all installation-related

components for the radio and the controller are supplied with kit MAMW-NCP9P, as listed in Table 4-6.

Since this kit includes radio installation-related components, standard Installation Kits MAMW-NZN6W

or MAMW-NZN7R are not required.

Table 4-1: M7300 Mobile Radio Catalog and Part Numbers

CATALOG

NUMBER RADIO

PART NUMBER DESCRIPTION

MAMW-SHMXX RU-144750-041 VHF 50-Watt M7300 Mobile Radio

for Front and Remote-Mount Configurations

MAMW-TBD RU-144750-031 High-Split UHF (440 to 512 MHz) 50-Watt M7300 Mobile Radio

for Front and Remote-Mount Configurations

MAMW-SDMXX RU-144750-061 700 & 800 MHz Dual-Band M7300 Mobile Radio

for Front and Remote-Mount Configurations

Table 4-2: CH-721 Control Head Catalog and Part Numbers

CONTROL HEAD

CATALOG NUMBER CONTROL HEAD

PART NUMBER DESCRIPTION

MAMW-NCP9G CU23218-0001 CH-721 Scan Control Head, Local-Control

for Use on a Front-Mount Mobile Radio

MAMW-NCP9E CU23218-0002 CH-721 Scan Control Head, Remote-Control

for Use with a Remote-Mount Mobile Radio

MAMW-NCP9H CU23218-0003 CH-721 System Control Head, Local-Control

for Use on a Front-Mount Mobile Radio

MAMW-NCP9F CU23218-0004 CH-721 System Control Head, Remote-Control

for Use with a Remote-Mount Mobile Radio

MM-014763-001, Rev. G

Table 4-3: AES and DES Encryption Catalog Numbers for M7300 Mobile Radios

CATALOG NUMBER DESCRIPTION

MAMW-NPL7M 256-Bit Advanced Encryption Standard (AES) for

EDACS, Conventional and P25 (ECP) Modes

MAMW-NPL3V 64-Bit Data Encryption Standard (DES) for ECP Modes

MAMW-NPL8D 256-Bit AES for OpenSky Mode

MAMW-PKG8C 256-Bit AES for ECP and OpenSky Modes,

and 64-Bit DES for ECP Modes

MAMW-PKG8F 256-Bit AES and 64-Bit DES for ECP Modes

4.2 MATERIAL INSPECTION

After removal from the carton, examine the radio, control head and other components

for broken, damaged, loose or missing parts. If any are noted, contact the Customer

Resource Center (see page 24

) immediately to discuss and arrange the return of the

equipment to Harris for replacement. Any unauthorized attempts to repair or modify

this equipment will void the warranty and could create a safety hazard.

Upon removing items from the carton and verifying that all equipment is accounted for, proceed with the

installation.

Mounting of the radio, control head, and/or antenna in ways other than those described

in this manual may adversely affect performance, violate FCC rules on RF exposure,

and even damage the unit, posing a potential safety hazard.

CAUTION

MM-014763-001, Rev. G

Table 4-4: Installation Kit MAMW-NZN6W

for Front-Mount M7300 Mobile Radio

ITEM QTY. PART

NUMBER DESCRIPTION ILLUSTRATION

1 1



KT101533V1 Kit, Front-Mount Mounting Bracket.

Includes M5300/M7100/M7300

Mounting

Bracket FM101319V1

(marked KTB0310), M5 stainless-

steel hardware to attach radio to

bracket, self-

tapping hardware to

attach bracket to mounting surface,

½-inch rubber grommet, and 7-inch

cable ties. See Section 7.1 on

page 51.

2 1



CA-012365-

001 Cable, M5300/M7300 DC Power.

Includes 10-AWG, 20-

Foot DC

Power Cable with straight

connector, (2) waterproof HFB fuse

holders, (1) 20-amp AGC fuse, (1)

15-amp AGC fuse and (1) 3-amp

AGC fuse. See

CAUTION that

follows. See Section 7.2 on page

55.

3 2



CD-014027-

001 Terminator, CAN; 3-Pin, Straight

Body. See Section 7.3 on page 60.

4 1



LS102824V10 Speaker, External Mobile; 20-Watt

(with 4.6-foot cable). See Section

9.1 on page 87.

5 1



CA-012349-

001 Cable, M5300/M7300 Option. See

Section 11.1 (page 90).

6 1



FM-104859-

001 Cap, Waterproof (For covering

M7300’s DB-

9 serial port

connector).

MM-014763-001, Rev. G

Table 4-5: Installation Kit MAMW-NZN7R

for Remote-Mount M7300 Mobile Radio with CH-721 Control Head

ITEM QTY. PART

NUMBER DESCRIPTION ILLUSTRATION

1 1



KT23117 Kit, Remote-Mount Mobile Radio

Mounting Bracket. Includes

300/M7100/M7300 Mounting

Bracket FM103111V1 and M5

stainless-steel hardware to attach

radio to bracket. See Section 8.1

on page 61.

2 1



KT-008608 Kit, CH-

721 Mounting Bracket.

Includes (1) U-Shaped Mounting

Bracket and #8 stainless-steel

hardware to attach control head

to bracket. See Section 8.3.2 on

page 73.

3 1



CA-012365-001 Cable, M5300/M7300 DC Power.

Includes 10-AWG, 20-

Foot DC

Power Cable with straight

connector, (2) waterproof HFB

fuse holders, (1) 20-

amp AGC

fuse, (1) 15-amp AGC fuse and

(1) 3-amp AGC fuse. See the

CAUTION that follows and

Section 8.2 on page 65.

4 1



CA-012616-001 Cable, CH-721/HHC-731 DC

Power. Includes 12-AWG, 10-foot

DC Power Cable with straight

connector, (2)

waterproof HFB

fuse holders, (1) 3-

amp AGC

fuse, and (1) 5-amp AGC fuse.

See Section 8.3.4 on page 76.

5 2



CD-014027-

001 Terminator, CAN; 3-Pin, Straight

Body. See Section 8.3.3.2 on

page 76.

MM-014763-001, Rev. G

Table 4-5: Installation Kit MAMW-NZN7R

for Remote-Mount M7300 Mobile Radio with CH-721 Control Head

ITEM QTY. PART

NUMBER DESCRIPTION ILLUSTRATION

6 1



CA-009562-030 Cable, CAN; 30 feet, Right-Angle-

to-Straight Connectors. See

Section 8.3.3 on page 74

7 1



LS102824V10

Speaker, External Mobile;

20-Watt (with 4.6-foot cable). See

Section 9.2 on page 87.

8 1



MAMROS0034-

NN006 Cable, Speaker; 6-Inch, Straight

Connector. Section 9.2 on page

87.

9 2



FM-104859-

001 Cap, Waterproof (For DB-9 serial

port connector

s on radio and

control head.)

[See footnote 4]

10 2



FM-104859-

002 Cap, Waterproof (For DB-25

connector

s on radio and control

head.)

[See footnote 4]

The 20-amp fuse included with DC Power Cable CA-012365-001 should not be used in

the M7300 mobile radio application of this cable. M7300 radio main power should be

protected with the 15-amp fuse. Refer to Section 13 for additional information.

4 Earlier installation kits contained only one (1) each of FM-104859-001 and FM-104859-002.

CAUTION

(Continued)

MM-014763-001, Rev. G

Table 4-6: HHC-731 Hand-Held Controller and Installation Components —

Installation Kit MAMW-NCP9P

ITEM QTY. PART

NUMBER DESCRIPTION ILLUSTRATION

1 1



CU-017821-001 Controller, Hand-Held, HHC-731

2 1



CA-018399-001 Cable, HHC-731 Interface

3 1



KT-018752-001 Kit, HHC-731

Interface Cable

Bracket

4 1



KT23117 Kit, Remote-Mount Mobile Radio

Mounting Bracket. Includes

M5300/M7100/M7300 Mounting

Bracket FM103111V1 and M5

stainless-steel hardware to attach

radio to bracket. See Section 8.1

on page 61.

5 1



CA-012365-001 Cable, M5300/M7300 DC Power.

Includes 10-AWG, 20-

Foot DC

Power Cable with straight

connector, (2) waterproof HFB

fuse holders, (1) 20-

amp AGC

fuse, (1) 15-amp AGC fuse and

(1) 3-

amp AGC fuse. See the

CAUTION on page 30 and

Section 8.2 on page 65.

MM-014763-001, Rev. G

Table 4-6: HHC-731 Hand-Held Controller and Installation Components —

Installation Kit MAMW-NCP9P

ITEM QTY. PART

NUMBER DESCRIPTION ILLUSTRATION

6 1



CA-012616-001 Cable, CH-721/HHC-731 DC

Power. Includes 12-AWG, 10-foot

DC Power Cable with straight

connector, (2) waterproof HFB

fuse holders, (1) 3-

amp AGC

fuse, and (1) 5-amp AGC fuse.

See Section 8.4.3 on page 83.

7 1



CD-014027-001 Terminator, CAN; 3-Pin, Straight

Body. See Section 8.4.2 on page

82.

8 1



CA-009562-030 Cable, CAN; 30 feet, Right-Angle-

to-Straight Connectors

. See

Section 8.4.2 on page 82.

9 1



LS102824V10 S

peaker, External Mobile;

20-Watt (with 4.6-foot cable). See

Section 9.2.2 on page 88.

10 1



CA-012349-007 Cable, Speaker-Only Option,

20-feet. See Section 9.2.2 on

page 88.

11 1



FM-104859-002 Cap, Waterproof (For HHC-731

Interface Cable’s DB-25 option

connector.)

The 20-amp fuse included with DC Power Cable CA-012365-001 should not be used in

the M7300 mobile radio application of this cable. M7300 radio main power should be

protected with the 15-amp fuse. Refer to Section 13 for additional information.

CAUTION

(Continued)

MM-014763-001, Rev. G

Table 4-7: Additional Options and Accessories for M7300 Mobile Radios

PART NUMBER DESCRIPTION

AN102800V1 Antenna, 136 – 941 MHz Standard Rooftop-Mount; ¼-Wave*, 0 dBd Gain, with

Mounting Base, 17-foot (5.2-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable

and Male TNC RF Connector; Field-Tuned*.

AN102800V2

(Discontinued) Antenna, 136 – 941 MHz Thick Rooftop-Mount; ¼-Wave*, 0 dBd Gain, with Mounting

Base, 17-foot (5.2-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable and Male

TNC RF Connector; Field-Tuned*.

AN-125001-001 Antenna Mount: Standard Rooftop, NMO Mounting Base, 15-foot (4.6-meter)

RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC RF Connector

AN-125001-002 Antenna Mount: Standard Rooftop, NMO Mounting Base, 15-foot (4.6-meter)

RF-195 (or equivalent) Low-Loss RF Cable, Male TNC RF Connector

AN-125001-003 Antenna Mount: Thick Rooftop, NMO Mounting Base, 15-foot (4.6-meter)

RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC RF Connector

AN-125001-004 Antenna Mount: Thick Rooftop, NMO Mounting Base, 15-foot (4.6-meter) RF-195

(or equivalent) Low-Loss RF Cable, Male TNC RF Connector

AN-125001-005 Antenna Mount: GPS Combo Rooftop, NMO Mounting Base, 17-foot (5.1-meter)

RF-195 (or equivalent) Low-Loss RF Cable, Male TNC RF Connector; 17-foot

(5.1-meter) RG174/U (or equivalent) GPS RF Cable with Male SMA RF Connector

(attached); 2.7 to 3.3 Vdc or 4.8 to 5.2 Vdc Bias

AN-125001-006 Antenna Mount: GPS Combo Rooftop, NMO Mounting Base, 17-foot (5.1-meter)

RF-195 (or equivalent) Low-Loss RF Cable, Male TNC RF Connector; 17-foot

(5.1-meter) RG174/U (or equivalent) GPS RF Cable with Male SMA RF Connector

(attached); 2.7 to 3.3 Vdc or 4.8 to 5.2 Vdc Bias

AN-125001-007 Antenna Mount: Magnetic, NMO Mounting Base, 15-foot (4.6-meter) RG-58 A/U (or

equivalent) Low-Loss RF Cable, Male TNC RF Connector

AN-125001-008 Antenna Mount: Magnetic, NMO Mounting Base, 15-foot (4.6-meter) RF-195 (or

equivalent) Low-Loss RF Cable, Male TNC RF Connector

AN-225002-001 Antenna Element: 136 to 174 MHz, 0 dBd Gain, NMO, Factory-Tuned

AN-225004-001 Antenna Element: 450 to 512 MHz, 0 dBd Gain, NMO, Factory-Tuned

AN-225004-004 Antenna Element: 450 to 512 MHz, 0 dBd Gain, Low-Profile, NMO, Factory-Tuned

AN-225001-001 Antenna Element: 700/800 MHz, 3 dBd Gain, NMO, Factory-Tuned

AN-225001-002 Antenna Element: 700/800 MHz, 3 dBd Gain, Elevated-Feed, NMO, Factory-Tuned

AN-225001-003 Antenna Element: 700/800 MHz, 3 dBd Gain, Elevated-Feed No Ground Plane,

NMO, Factory-Tuned

AN-225001-004 Antenna Element: 700/800 MHz, 2 dBd Gain, Low-Profile, NMO, Factory-Tuned

AN-225001-005 Antenna Element: 700/800 MHz, 5 dBd Gain, NMO, Factory-Tuned

AN-025147-001

(Discontinued) Antenna, 136 to 174 MHz, Standard Rooftop-Mount; 0 dBd Gain, NMO Mounting

Base, 15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC

RF Connector; Factory-Tuned.

AN-025147-003

(Discontinued) Antenna, 136 to 174 MHz, GPS Combo Rooftop-Mount; 0 dBd Gain, NMO Mounting

Base, 15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC RF

Connector; 16.5-foot (5-meter) RG174/U (or equivalent) GPS RF Cable with Male SMA

RF Connector (attached); 2.7 to 3.3 Vdc or 4.8 to 5.2 Vdc Bias; Factory-Tuned.

AN-025147-005

(Discontinued) Antenna, 136 to 174 MHz, Magnetic-Mount; 0 dBd Gain, 15-foot (4.6-meter) RG-58 A/U

(or equivalent) Low-Loss RF Cable, Male TNC RF Connector; Factory-Tuned.

MM-014763-001, Rev. G

Table 4-7: Additional Options and Accessories for M7300 Mobile Radios

PART NUMBER DESCRIPTION

AN-025167-001

(Discontinued) Antenna, 700/800 MHz, Standard Rooftop-Mount, 3 dBd Gain, NMO Mounting Base,

15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC and

Mini-UHF RF Connectors; Factory-Tuned.

AN-025167-002

(Discontinued) Antenna, 700/800 MHz, Elevated-Feed, Rooftop-Mount, 3d dB Gain, NMO Mounting

Base, 15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC

and Mini-UHF RF Connectors; Factory-Tuned.

AN-025167-004

(Discontinued) Antenna, 700/800 MHz GPS Combo, Rooftop-Mount, 3 dBd Gain, NMO Mounting

Base, 15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC

and Mini-UHF RF Connectors, 16.5-foot (5-meter) RG174/U (or equivalent) GPS RF

Cable with Male SMA RF Connector (attached); 2.7 to 3.3 Vdc or 4.8 to 5.2 Vdc

Bias; Factory-Tuned.

AN-025167-005

(Discontinued) Antenna, 700/800 MHz GPS Combo, Elevated-Feed Rooftop-Mount, 3 dBd Gain, NMO

Mounting Base, 15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male

TNC and Mini-UHF RF Connectors, 16.5-foot (5-meter) RG174/U (or equivalent) GPS

RF Cable with Male SMA RF Connector (attached); 2.7 to 3.3 Vdc or 4.8 to 5.2 Vdc Bias;

Factory-Tuned.

AN-025167-006

(Discontinued) Antenna, 700/800 MHz, Magnetic-Mount, 3 dBd Gain, 15-foot (4.6-meter) RG-58 A/U

(or equivalent) Low-Loss RF Cable, Male TNC and Mini-UHF RF Connectors;

Factory-Tuned.

AN-025167-010

(Discontinued) Antenna, 700/800 MHz, Low-Profile, Rooftop-Mount, 2 dBd Gain, NMO Mounting

Base, 15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC

and Mini-UHF RF Connectors, Factory-Tuned.

AN-025167-011

(Discontinued) Antenna, 700/800 MHz GPS Combo, Low-Profile, Rooftop-Mount, 2 dBd Gain, NMO

Mounting Base, 15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable,

Male TNC and Mini-UHF RF Connectors, 16.5-foot (5-meter) RG174/U (or equivalent)

GPS RF Cable with Male SMA RF Connector (attached); 2.7 to 3.3 Vdc or 4.8 to 5.2

Vdc Bias; Factory-Tuned.

AN-025167-014

(Discontinued) Antenna, 700/800 MHz, Standard Rooftop-Mount, 5 dBd Gain, NMO Mounting Base,

15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC and

Mini-UHF RF Connectors, Factory-Tuned.

AN-025167-015

(Discontinued) Antenna, 700/800 MHz GPS Combo, Rooftop-Mount, 5 dBd Gain, NMO Mounting

Base, 15-foot (4.6-meter) RG-58 A/U (or equivalent) Low-Loss RF Cable, Male TNC

and Mini-UHF RF Connectors, 16.5-foot (5-meter) RG174/U (or equivalent) GPS RF

Cable with Male SMA RF Connector (attached); 2.7 to 3.3 Vdc or 4.8 to 5.2 Vdc

Bias; Factory-Tuned.

AN-025187-001

(Cat. No. MAMW-NAN5F)

Antenna, GPS Receive Only, Roof-Mount, 17-foot (5.2-meter) RG174/U (or

equivalent) RF Cable with Male SMA RF Connector (attached); 2.7 to 3.3 Vdc or 4.8

to 5.2 Vdc Bias.

AN-025187-003

(Cat. No. MAMW-NAN3L)

Antenna, GPS Receive Only, Magnetic-Mount, 17-foot (5.2-meter) RG174/U (or

equivalent) RF Cable with Male SMA RF Connector (attached); 2.7 to 3.3 Vdc or 4.8

to 5.2 Vdc Bias.

CA-012349-001

(Cat. No. MAMW-NCL8B) Cable, M5300/M7300 Option. See page 90.

CA-013671-020 Cable, TIA/EIA-232 Serial Programming (20 feet). See page 94.

CN-014756 Connector, RF; TNC Male Crimp-Type for RG58U, RG58A/U and RGU400 Coaxial

Cable.

(Continued)

MM-014763-001, Rev. G

Table 4-7: Additional Options and Accessories for M7300 Mobile Radios

PART NUMBER DESCRIPTION

KT-012350-001

(Cat. No. MAMW-NMK5F) Kit, GPS Receiver for M5300/M7300.

KT-015037 Kit, Front-Mount to Remote-Mount Conversion for M5300/M7300 Radio. Includes

CH-721 Conversion Kit, CH-721 Mounting Bracket Kit, CH-721 DC Power Cable,

CAN Cable, CAN Terminator, Speaker Cable, Etc.

KT-014494-002 Kit, Remote-Mount to Front-Mount Conversion for M5300/M7300 Radio and CH-721

Control Head.

CD-014027-001 Terminator, CAN; 3-Pin, Straight Body.

* Driven elements of AN102800V1 and AN102800V2 must be trimmed to proper lengths in order to minimize antenna

system VSWR.

MM-014763-001, Rev. G

Table 4-8: Additional Options and Accessories for CH-721 Control Heads

PART NUMBER DESCRIPTION

CA-009562-006 Cable, CAN; 6 feet, Right-Angle-to-Straight Connectors

CA-009562-030 Cable, CAN; 30 feet, Right-Angle-to-Straight Connectors

CA-009562-090 Cable, CAN; 90 feet, Right-Angle-to-Straight Connectors

CA-009562-250 Cable, CAN; 250 feet, Right-Angle-to-Straight Connectors

CA-011854-001 Cable, CH-721 Option

CA-104861 Cable, CH-721 Programming

MAMROS0075-N1210 Cable, DC Power; 12-AWG, 10-Foot, Straight Connector

MAMROS0075-N1220 Cable, DC Power; 12-AWG, 20-Foot, Straight Connector

MAMROS0075-R1210 Cable, DC Power; 12-AWG, 10-Foot, Right-Angle Connector

MAMROS0075-R1220 Cable, DC Power; 12-AWG, 20-Foot, Right-Angle Connector

MACDOS0012 Kit, Control Head Pedestal Mounting. Includes Pedestal Mount and Mounting

Screws

MACDOS0013-CN004 Kit, Speaker; 20-Watt, Straight Connector. (Includes 4-Ohm 20-Watt Speaker

LS102824V10 with 4.6-Foot Cable and 6-Inch Speaker Cable MAMROS0034-

NN006.)

FS24473 Kit, Vehicle Fuse and T-Tap. Includes (1) ATM Fuse Holder, (1) 2-Amp ATM Fuse,

(2) T-Tap Quick-Disconnect Terminals and (1) ¼-Inch Crimp Tab Terminal.

(Contents shown in Figure 8-12 on page 79.)

MC-101616-040

(Discontinued. Replaced by

MC-101616-041)

Microphone, Standard with Conxall Flush-Mount 45-Degree Connector

MC-101616-041 Microphone, Standard with Conxall Flush-Mount 90-Degree Connector

(Included with catalog number MAMW-NMC7Z)

MC-103334-040 Microphone, DTMF with Conxall Flush-Mount 45-Degree Connector

(Included with catalog number MAMW-NMC9C)

MC-103334-041 Microphone, DTMF with Conxall Flush-Mount 90-Degree Connector

MC-103334-050

(Discontinued. Replaced by

MC-103334-051)

Microphone, Noise-Canceling with Conxall Flush-Mount 45-Degree Connector

MC-103334-051 Microphone, Noise-Canceling with Conxall Flush-Mount 90-Degree Connector

(Included with catalog number MAMW-NMC9D)

344A4678P1 Microphone Hanger. (Included with catalog numbers MAMW-NMC7Z,

MAMW-NMC9C and MAMW-NMC9D)

CD-014027-001 Terminator, CAN; 3-Pin, Straight Body

MACDOS0010 Terminator, CAN; 3-Pin, Right-Angle Body

MM-014763-001, Rev. G

5 PLANNING THE INSTALLATION

5.1 GENERAL INFORMATION

Figure 5-1 on page 38 illustrates a typical front-mount radio installation, and Figure 5-2 on page 38

illustrates a typical remote-mount radio installation. Before starting, plan the installation carefully so it

will meet the following requirements:

• The installation is safe for the operator and passengers within the vehicle.

• The equipment is installed away from the airbag deployment areas.

• The installation allows for convenient access by the operator, as applicable (i.e., the control head or

hand-held controller).

• The equipment is protected from water damage.

• The installation is neat and allows easy service access.

• The mobile radio is mounted in a location assuring the vehicle occupant’s safety and out of the way

of passengers and auto mechanics.

A professional radio installer should perform the installation!

5.2 TOOLS REQUIRED

The following tools are recommended to complete the installation. Where specific vendor names and

model or part numbers are given, equivalent substitutes may be used:

• Non-Insulated Crimp Tool: Thomas & Betts

WT-111-M

• Phillips-Head Screwdrivers, #1 and #2

• Flat-Blade Screwdrivers, #1 and #2

• Insulated Terminal Crimp Tool: Klein 1005

• 4-Millimeter Hex Key Wrench

• Fuse Holder Crimp Tool: Thomas & Betts –

WT-112M or California Terminal Products

No. 1250 or Channelock No. 909

• ⅛-Inch Hex Key Wrench (Allen Wrench)

• 5/16-Inch Combination or Open-End Wrench

(Only Needed for GPS Receiver Option)

• 3-Blade Coax Cable Stripper for RG-58 Cable

similar to Tyco Electronics 1490490-1

(includes blades)

• ¾-Inch or ⅜-Inch Hole Saw with Depth

Protection: ¾-Inch = Ripley HSK 19 or

Antenex HS34; ⅜-Inch = Antenex HS38

• Ratcheting Hex-Crimp Tool for 50-Ohm TNC

and BNC RF Connectors and RG-58 Cable

similar to Tyco Electronics 58433-2 (includes

Crimper 354940-1 and Die Set 58436-1) or

Emerson Network Power 24-9960P

• Clutch-Type Cordless Drill with Drill Bits and

Driver Bits

• Deburring Tool (for ⅜-inch and smaller holes)

• Flush-Cut and Large Wire Cutters

• Non-Metallic Fish Tape, 25-Foot: Klein-Lite

50156 • Various Fasteners (e.g., machine screws and

nuts, Tek screws, etc.)

• Various Socket and Driver Sets

• Tie Wraps: Nylon, 6-inches or larger

•

Soft-Jaw Pliers: Tessco 450520 or equivalent

A separate list of test equipment is included in Section 14.2 on page 104.

CAUTION

NOTE

MM-014763-001, Rev. G

Figure 5-1: Typical Front-Mount Mobile Radio Installation in a Standard Passenger Vehicle

Figure 5-2: Typical Remote-Mount Mobile Radio Installation in a Standard Passenger Vehicle

VEHICLE

BATTERY

GROMMET

(MOUNTED IN FIREWALL)

SPEAKER

IN-LINE WATERPROOF FUSE

HOLDER & AGC FUSE

(15-AMP FOR RADIO)

MOBILE

ANTENNA

GPS ANTENNA

M7300 FRONT-MOUNT

MOBILE RADIO

VEHICLE

FUSE BOX

GPS ANTENNA CABLE

MOBILE ANTENNA CABLE

VEHICLE

BATTERY

GROMMET

(Mounted in vehicle’s firewall)

SPEAKER

IN-LINE WATERPROOF FUSE

HOLDERS AND AGC FUSES

(15-AMP FOR RADIO)

(5-AMP FOR CONTROL HEAD)

(Supplied with DC Power Cables)

CONTROL HEAD

MOBILE

ANTENNA

GPS ANTENNA

(Optional)

M7300 TRUNK-

MOUNT MOBILE

RADIO

CAN CABLE

(To/From Control Head)

10-AWG RED WIRE OF RADIO’S DC POWER CABLE

(Carries DC power from fuse holder at battery to radio)

NOTE: SEE TEXT FOR WIRING

OF DC POWER CABLE.

12-AWG RED WIRE OF CONTROL

HEAD’S DC POWER CABLE

(Carries DC power from fuse holder

at battery to control head)

MM-014763-001, Rev. G

FRONT VIEWS

Front-Mount M7300 Mobile Radio Remote-Mount M7300 Mobile Radio

(With Scan Control Head)

REAR VIEW

Figure 5-3: M7300 Front-Mount and Remote-Mount Mobile Radios — Front and Rear Views

CAN Port Connectors

(2 places)

Antenna

Connector

(female TNC)

DC Power Cable

(with 3-Pin Connector)

GPS Antenna Port

(optional)

44-Pin I/O

Connector

9-Pin Serial Port

Connector

MM-014763-001, Rev. G

5.3 LOCATING COMPONENTS

Plan the mounting locations of all components (radio, control head/hand-held controller, antenna, and

cables) and determine the routes for all wiring and cables. Particularly consider the connection of the

radio for planning purposes.

• Determine the customer’s preferences, if any, for location of components. Comply with these

preferences as long as they are consistent with safety recommendations and guidelines presented in

this manual, and other generally accepted professional radio installation practices.

• For a front-mount installation, the radio is typically located under the vehicle’s dash panel. However,

it may be mounted above the dash, or at some other location per customer requirements, available

space, and/or mounting surface strength. Dimensions for the radio, control head, and hand-held

controller are listed in Section 2.1 on page 17. As noted in that section, these dimensions do not

include space required at the rear of the radio for cables. Several inches of clearance space is required.

• For a remote-mount radio installation, the radio is typically located in the motor vehicle’s trunk, or

some other preferably unoccupied section in a vehicle, such as a fire truck’s equipment shelf. The

control head is typically located under the vehicle’s dash panel. Dimensions for the radio, control

head, and hand-held controller are listed in Section 2.1 on page 17. As noted in that section, these

dimensions do not include space required at the rear of the radio and control head for cables. Several

inches of clearance space is required at the back of the control head, and at least six (6) inches is

recommended at the back of the radio. In addition, several inches of clearance space is required at

each side of the radio for access to the screws that secure the radio to its mounting bracket.

• When selecting a mounting location, verify sufficient clearance behind the radio can be maintained so

cables will not be stressed, crushed, twisted, or bent at severe angles. This also applies to the control

head in a remote-mount radio installation. Also, the front and sides of the units must have clearance

for air circulation, access to mounting screws, mounting hardware, etc.

• Verify the drilling of holes and the insertion of screws will not damage or interfere with any existing

vehicle components (for example, a fuel tank, fuel lines, the transmission housing, etc.), or any

existing vehicle wiring.

• For antenna location and installation-related information, refer to Section 6.

The radio must be kept out of direct sunlight and away from heat sources. Adequate

free-air

ventilation must be provided to its rear fins. The radio will automatically

reduce its transmit

RF output power when its ambient temperature exceeds

approximately +140° Fahrenheit (+60° Celsius).

All cables should have a service loop near each connector end. Do not bend the cables

at severe angles near the connector end. Above all, after all components are installed,

verify no cable is under any tension. Failure to do so may lead to damaged cables,

causing intermittent radio operation or complete radio failure.

CAUTION

MM-014763-001, Rev. G

6 ANTENNA INSTALLATION

6.1 ANTENNA MOUNTING LOCATIONS

At this time, review all information presented in the

REGULATORY AND

SAFETY INFORMATION section of this manual (see page 7

). A transmitting

antenna must be installed in accordance with the guidelines presented in both the

REGULATORY AND SAFETY INFORMATION section, and in this section. As a

guide f

or determining the best possible mounting location in order to reduce

human exposure to radio frequency (RF) electromagnetic energy during transmit

mode, use Table 1-1 for a VHF radio, Table 1-3 for a 700 and 800 MHz radio, and

Figure 6-1.

Antennas must be mounted in one of four (4) possible locations on the vehicle. Figure 6-1 shows the

recommended locations and antenna part numbers. Also, see Table 4-7 for additional information. Always

follow the antenna manufacturer’s instructions when mounting an antenna.

6.1.1 Direct Center or Center-Rear of Rooftop

The center of the vehicle’s roof is the best location for a rooftop-mount antenna (location  in Figure

6-1). For optimal performance, the mounting area under the antenna must be a flat with a minimum

radius of six (6) inches of metal ground plane. It must be located directly in the center of the roof to

minimize human exposure to RF electromagnetic energy. Other obstructions such as a light bar or another

antenna may prevent the antenna from being mounted in the direct center of the roof. In this case, the

antenna should be mounted a minimum of one foot away from and behind the obstruction but in the

middle of the roof with respect to the left and right sides of the vehicle (location  in Figure 6-1).

6.1.2 Center of Trunk Lid

Certain vehicles do not allow for the antenna to be placed in the center or center-rear of the roof. In this

case, the next best location for the antenna is in the direct center of the trunk lid (location  in Figure

6-1). In this case, an elevated-feed-point antenna is recommended. Although this type of antenna does

not require a metal ground plane, it must be located directly in the center of the trunk lid to minimize

human exposure to RF electromagnetic energy.

6.1.3 Rear Deck Lid for Stand-Alone GPS Receive Antenna

If the M7300 mobile radio does not use a GPS combination-type antenna and it is equipped with a GPS

receiver, a stand-alone GPS receive antenna must be separately located and mounted. The vehicle’s rear

deck lid (location  in Figure 6-1) is the recommended mounting location for this case. This locates the

GPS antenna inside the vehicle.

WARNING

MM-014763-001, Rev. G

TOP VIEW OF A TYPICAL VEHICLE

ANTENNA

PART NUMBER ANTENNA DESCRIPTION* LOCATION(S)









AN102800V1 136 to 941 MHz Standard Rooftop-Mount, ¼-Wave, 0 dBd Gain 

AN102800V2 (Discontinued) 136 to 941 MHz Thick Rooftop-Mount, ¼-Wave, 0 dBd Gain 

AN-125001-001 (mount) with

AN-225002-001 (element) 136 to 174 MHz Standard Rooftop-Mount, 0 dBd Gain  

AN-125001-003 (mount) with

AN-225002-001 (element) 136 to 174 MHz Thick Rooftop-Mount, 0 dBd Gain   

AN-125001-007 (mount) with

AN-225002-001 (element) 136 to 174 MHz Magnetic-Mount, 0 dBd Gain 

AN-125001-001 (mount) with

AN-225004-001 (element) 450 to 512 MHz Standard Rooftop-Mount, 0 dBd Gain   

AN-125001-001 (mount) with

AN-225004-004 (element) 450 to 512 MHz Standard Rooftop-Mount, Low Profile, 0 dBd Gain  

AN-125001-003 (mount) with

AN-225004-001 (element) 450 to 512 MHz Thick Rooftop-Mount, 0 dBd Gain   

AN-125001-003 (mount) with

AN-225004-004 (element) 450 to 512 MHz Thick Rooftop-Mount, Low Profile, 0 dBd Gain  

AN-125001-005 (mount) with

AN-225004-001 (element) 450 to 512 MHz GPS Combo Rooftop-Mount, 0 dBd Gain   

AN-125001-005 (mount) with

AN-225004-004 (element) 450 to 512 MHz GPS Combo Rooftop-Mount, Low Profile, 0 dBd Gain  

AN-125001-007 (mount) with

AN-225004-001 (element) 450 to 512 MHz Magnetic-Mount, 0 dBd Gain 

AN-125001-007 (mount) with

AN-225004-004 (element) 450 to 512 MHz Magnetic-Mount, Low Profile, 0 dBd Gain 

AN-125001-002 (mount) with

AN-225001-001 (element) 700/800 MHz Standard Rooftop-Mount, 3 dBd Gain  

AN-125001-002 (mount) with

AN-225001-002 (element) 700/800 MHz Elevated-Feed Rooftop-Mount, 3 dBd Gain   

AN-125001-002 (mount) with

AN-225001-003 (element) 700/800 MHz Elevated-Feed No Ground Plane Rooftop-Mount, 3 dBd

Gain   

AN-125001-002 (mount) with

AN-225001-004 (element) 700/800 MHz Low-Profile Rooftop-Mount, 2 dBd Gain  

AN-125001-002 (mount) with

AN-225001-005 (element) 700/800 MHz Standard Rooftop-Mount, 5 dBd Gain 

AN-125001-004 (mount) with

AN-225001-001 (element) 700/800 MHz Thick Rooftop-Mount, 3 dBd Gain  

Trunk Lid

Rooftop

Hood

   

MM-014763-001, Rev. G

TOP VIEW OF A TYPICAL VEHICLE

ANTENNA

PART NUMBER ANTENNA DESCRIPTION* LOCATION(S)









AN-125001-004 (mount) with

AN-225001-002 (element) 700/800 MHz Elevated-Feed Thick Rooftop-Mount, 3 dBd Gain   

AN-125001-004 (mount) with

AN-225001-003 (element) 700/800 MHz Elevated-Feed No Ground Plane Thick Rooftop-Mount,

3 dBd Gain   

AN-125001-004 (mount) with

AN-225001-004 (element) 700/800 MHz Low-Profile Thick Rooftop-Mount, 2 dBd Gain  

AN-125001-004 (mount) with

AN-225001-005 (element) 700/800 MHz Thick Rooftop-Mount, 5 dBd Gain 

AN-125001-006 (mount) with

AN-225001-001 (element) 700/800 MHz GPS Combo Rooftop-Mount, 3 dBd Gain  

AN-125001-006 (mount) with

AN-225001-002 (element) 700/800 MHz GPS Combo Elevated-Feed Rooftop-Mount, 3 dBd Gain   

AN-125001-006 (mount) with

AN-225001-003 (element) 700/800 MHz GPS Combo Elevated-Feed No Ground Plane Rooftop-

Mount, 3 dBd Gain   

AN-125001-006 (mount) with

AN-225001-004 (element) 700/800 MHz GPS Combo Low-Profile Rooftop-Mount, 2 dBd Gain  

AN-125001-006 (mount) with

AN-225001-005 (element) 700/800 MHz GPS Combo Rooftop-Mount, 5 dBd Gain 

AN-125001-008 (mount) with

AN-225001-001 (element) 700/800 MHz Magnetic-Mount, 3 dBd Gain  

AN-125001-008 (mount) with

AN-225001-002 (element) 700/800 MHz Magnetic-Mount Elevated-Feed, 3 dBd Gain   

AN-125001-008 (mount) with

AN-225001-003 (element) 700/800 MHz Magnetic-Mount Elevated-Feed No Ground Plane, 3 dBd

Gain   

AN-125001-008 (mount) with

AN-225001-004 (element) 700/800 MHz Magnetic-Mount Low-Profile, 2 dBd Gain  

AN-125001-008 (mount) with

AN-225001-005 (element) 700/800 MHz Magnetic-Mount, 5 dBd Gain 

AN-025147-001 (Discontinued) 136 to 174 MHz Standard Rooftop-Mount, 0 dBd Gain  

AN-025147-003 (Discontinued) 136 to 174 MHz GPS Combo Rooftop-Mount, 0 dBd Gain  

AN-025147-005 (Discontinued) 136 to 174 MHz Magnetic-Mount, 3 dBd Gain 

AN-025167-001 (Discontinued) 700/800 MHz Standard Rooftop-Mount, 3 dBd Gain  

AN-025167-002 (Discontinued) 700/800 MHz Elevated-Feed Rooftop-Mount, 3 dBd Gain   

AN-025167-004 (Discontinued) 700/800 MHz GPS Combo Rooftop-Mount, 3 dBd Gain  

AN-025167-005 (Discontinued) 700/800 MHz GPS Combo Elevated-Feed Rooftop-Mount, 3 dBd Gain   

Trunk Lid

Rooftop

Hood

   

MM-014763-001, Rev. G

TOP VIEW OF A TYPICAL VEHICLE

ANTENNA

PART NUMBER ANTENNA DESCRIPTION* LOCATION(S)









AN-025167-006 (Discontinued) 700/800 MHz Magnetic-Mount, 3 dBd Gain 

AN-025167-010 (Discontinued) 700/800 MHz Low-Profile Rooftop-Mount, 2 dBd Gain  

AN-025167-011 (Discontinued) 700/800 MHz GPS Combo Low-Profile Rooftop-Mount, 2 dBd Gain   

AN-025167-014 (Discontinued) 700/800 MHz Standard Rooftop-Mount, 5 dBd Gain 

AN-025167-015 (Discontinued) 700/800 MHz GPS Combo Rooftop-Mount, 5 dBd Gain 

AN-025187-001 GPS Receive Only, Roof-Mount   

AN-025187-003 GPS Receive Only, Magnetic-Mount   

* See Table 4-7 on page 33 for detailed antenna descriptions.

Figure 6-1: Recommended Antenna Mounting Locations with Antenna Part Numbers

6.2 ANTENNA INSTALLATION PROCEDURES

An antenna must be installed before completing the radio installation.

Table 4-7 (page 33) and Figure 6-1 (page 44) list the mobile radio antennas available for use with the

radio. As presented in the previous section, various mounting locations exist. Optimal performance is

achieved via a rooftop antenna mounted in the direct center of the motor vehicle’s roof.

6.2.1 Installing NMO Antenna Mounts AN-125001-001, -002, -003 and -004

These NMO style antenna mounts can each be used with several different antenna elements. Only limited

access under the mounting location is typically required. The installation procedure is presented in

Section 6.2.1.3.

6.2.1.1 Standard NMO Antenna Mounts AN-125001-001 and AN-125001-002

These standard ¾-inch NMO antenna mounts require a ¾-inch hole in a relatively flat area of the vehicle

body, with a vehicle metal thickness of between 0.020 and 0.040 inches. AN-125001-002 has a very-low-

loss coax cable (LMR/RF-195 or equivalent).

6.2.1.2 Thick-Roof NMO Antenna Mounts AN-125001-003 and AN-125001-004

Both of these thick-roof NMO antenna mounts use either a ⅜-inch or a ¾-inch mounting hole in a

relatively flat area of the vehicle body, with a vehicle metal thickness of between 0.040 and 0.1875 inches

NOTE

Trunk Lid

Rooftop

Hood

   

MM-014763-001, Rev. G

(3/16-inch maximum thickness). AN-125001-004 has a very-low-loss coax cable (LMR/RF-195 or

equivalent).

For thick-roof NMO antenna mounts AN-125001-003 or AN-125001-004, using a

⅜-inch mounting hole will require better

access to the underside of the mounting

location than if a ¾-inch hole is used. This is because, in the case of a ⅜-inch hole, the

antenna mount’s bushing assembly must

be inserted from the underside of the

mounting surface.

When using a ¾-inch mounting hole to mount thick-roof NMO

antenna mounts

AN-125001-003 or AN-125001-004, the thickness of the mounting surface must be at

least ⅛-inch (0.125-inch minimum thickness). This requirement is due to the thickness

of the alignment ring used to center the bushing assembly within the ¾-inch mounting

hole.

6.2.1.3 Installation Procedure for Mounts AN-125001-001 through -004

1. Select the antenna mounting location in accordance with the information presented in Sections 1 and

6.1 of this manual. If necessary, contact the Technical Assistance Center for assistance. See page 25

for TAC contact information.

2. Verify no obstructions exist immediately below the respective mounting location on the underside of

the vehicle body, such as vehicle ribbing/body framing, a wiring harness, air bag equipment, etc. Also

verify there is a sufficient access path and clearance for the mount’s coax cable. If there is an

obstruction or insufficient clearance, select another nearby mounting location.

3. Measure and mark the center point of the selected antenna mounting location. Be sure to center the

mark from side-to-side of the vehicle.

4. Obtain a hole saw specifically designed for drilling NMO mounting holes of the required diameter.

(e.g., Antenex/Laird Technologies model HS34 or equivalent for a ¾-inch hole; Antenex/Laird

Technologies model HS38 or equivalent for a ⅜-inch hole).

5. If the vehicle’s headliner panel, carpet, seats, or otherwise, is below the mounting location, move or

remove the headliner panel, etc. as necessary to protect it. Alternately, apply a heat-resistant mask

material (such as a fiberglass mat or thin sheet metal with masked edges) as required to “catch” the

metal shavings and the metal plug (if any) produced by the hole saw. The plug (if any) may be

relatively hot if/when it drops out of the saw upon completion of the hole drilling process. ⅜-inch

diameter hole saws generally produce only shavings, not plugs.

6. With the hole saw and a drill, drill a hole at the marked hole center point. Position the drill square to

(i.e., 90 degrees from) the vehicle mounting surface so paint immediately outside of the perimeter of

the hole is evenly removed.

Excessive use of the hole saw and/or failure to position the drill “square” with

(i.e., at a 90-degree angle from)

the vehicle mounting surface may result in

damage to the metal mounting surface, in the area immediately outside of the

perimeter of the hole.

7. Ensure the saw removed the paint immediately around the hole as the drilling operation completes. If

not, do so by reinserting the saw completely into the hole and spinning it as required. This allows

proper grounding via the mount’s lock nut on the top of the mounting surface. On the bottom of the

mounting surface, the “teeth” of the mount’s bushing assembly may not provide a good ground due to

thick vehicle undercoating, thick primer, oxidation/rust, etc.

NOTE

CAUTION

MM-014763-001, Rev. G

8. For a ¾-inch hole, feed the unterminated end of the mount’s coax cable into the hole from the top

surface of the vehicle until the mount’s bushing assembly is in position to drop into the hole. The

bushing should be tilted at a slight angle and fed into the hole. The threaded shank of the mount’s

bushing assembly will not fall through a ¾-inch hole.

For a ⅜-inch hole, feed the threaded shank of the mount’s bushing assembly into the hole from the

underside of the mounting surface. Hold it into position until the lock nut is installed.

9. If installing a thick-roof antenna mount (⅜-inch shank) into a ¾-inch hole, place the alignment ring

onto the threaded shank of the mount. This ring has an approximate ¾-inch outside diameter.

10. A tube of synthetic lubricant is included with the antenna mount. Apply this lubricant to the mount’s

rubber O-ring. Do not get any lubricant on the center contact of the mount’s bushing assembly.

11. As illustrated in Figure 6-2 and Figure 6-3, add the O-ring (C) and lock nut (D) to the top of the

mount’s bushing assembly (A). With the O-ring in the groove in the underside of the lock nut, thread

the lock nut onto the bushing assembly. Be sure the O-ring remains in the groove before tightening

the lock nut.

12. Using a 15/16-inch open-end wrench, tighten the lock nut until it fully compresses the O-ring and

makes good contact with the vehicle mounting surface. The groove’s ridges on the bottom of the lock

nut must make full contact with the unpainted metal surface of the vehicle.

13. Install the antenna element per the procedure in Section 6.2.4.

Figure 6-2: Installing a Standard ¾-Inch NMO Antenna Mount

(e.g., AN-125001-001 or AN-125001-002)

Coax Cable

(Partial)

Rubber O-Ring (C)

Vehicle Mounting Surface

(top side)

Bushing Assembly (A)

Lock Nut (D)

Threaded Shank (B)

MM-014763-001, Rev. G

Figure 6-3: Installing a Thick-Roof NMO Antenna Mount

(e.g., AN-125001-003 or AN-125001-004)

6.2.2 Installing NMO Magnetic Antenna Mounts AN-125001-007 and

AN-125001-008

1. Thoroughly clean the bottom of the magnetic mount and the selected vehicle mounting surface by

removing all dust, dirt, etc.

2. Carefully place the magnet mount onto the metal surface of the vehicle at the selected location. The

coax cable exiting the mount’s base should be orientated towards the point at which it will enter into

the interior of the vehicle. Do not try to reposition it by sliding it on a painted metal surface.

3. Route the mount’s coax cable to the radio location, passing it by the trunk lid’s perimeter gasket, door

perimeter gasket, etc., as necessary.

4. Install the antenna element per the procedure in Section 6.2.4.

To remove a magnetic antenna mount, hold it at the bottom of its base and tilt it at an

angle to release the magnetic attraction force. Do not pull on the mount’s coax cable.

Do not drag the mount across the mounting surface.

6.2.3 Installing All Other Antenna Mounts

For any other type of antenna mount not covered in the previous sections, such as GPS combination

antennas, install the mount in accordance with the installation instructions included with the mount.

6.2.4 Attaching NMO Antenna Elements

1. Clean the top surface of the NMO mount and the surface of the vehicle immediately around the

mount.

2. Place the gasket included with the antenna element (not pictured in Figure 6-2 or Figure 6-3) around

the mount and against the surface of the vehicle. If a lubricant or sealant was included with the

gasket, apply it to the gasket before placing the gasket.

3. Apply the antenna element to the top of the mount and tighten it in a clock-wise direction (as viewing

from the top). Use an appropriate wrench if required. Do not over-tighten.

CAUTION

Coax Cable

(Partial)

Rubber O-Ring (C)

Vehicle Mounting Surface

(top side)

Bushing Assembly (A)

Lock Nut (D)

Threaded Shank (B)

Alignment Ring

(Used only with ¾-inch mounting hole)

(Extensions shown to illustrate a

⅜-Inch hole vs. a ¾-inch hole.)

MM-014763-001, Rev. G

4. Install a placard (not supplied) on the vehicle’s dash panel, in accordance with the following

CAUTION. Place the placard in plain view of the vehicle operator’s position.

Before entering any automatic vehicle (“car”) wash equipment,

remove the antenna

element from the antenna mount, and secure the element in a safe location inside the

vehicle. This will prevent the wash equipment from damaging the element and/or

mount. After exiting the wash equipment, thoroughly dry the top of the mount before

re-installing the element.

5. Continue with the connection procedure presented in the next section.

6.2.5 Installing the Coax Cable and TNC RF Connector

1. Route the coax cable from the antenna mount to the location where the mobile radio will be installed.

Remove headliner panel, interior panels, etc., as necessary. The cable must be kept out of casual

contact from persons within the vehicle. Tie and stow the cable as necessary to protect it from

possible chafing. Observe and follow this WARNING:

Antennas Having Part Numbers Beginning with AN-025167, and Antennas

AN102800V1 and AN102800V2: The cables of these antennas should never be cut to

a shorter length. Instead, excess cable must be tied and stowed. This not only prevents

the antenna from radiating above its intended or configured power, but it also allows

for future re-installation considerations such as a relocation of the mobile radio

within the vehicle. Installations requiring longer cables are treated as custom and

separately specified.

All Other Antennas/Antenna Mounts:

The antenna cables of all other

antennas/antenna mounts can be cut to a length

no shorter than six (6) feet

(1.83 meters), as measured from the base of the antenna mount.

2. Using an appropriate crimp tool, crimp the supplied TNC RF connector to the end of the antenna

cable. For crimping instructions, see Figure 6-4 or the instructions supplied with antenna mount.

3. The antenna cable is connected to the radio’s TNC receptacle-type (female) RF connector per a

procedure presented later in this manual. The cable and its TNC connector must be protected from

damage, dirt, and/or metal shavings which may be generated during the mechanical and electrical

installation of the radio. Temporarily tying the connector and cable-end within a small plastic bag is

recommended.

CAUTION

WARNING

MM-014763-001, Rev. G

Actual Size; Dimensions are in Inches

(VS-AN-025167-010 Rev. A)

Figure 6-4: Crimping Instructions for TNC RF Connector

If the mobile radio installation includes a unity-gain antenna

part number

AN102800V1 or AN102800V2, the antenna element must be tuned (trimmed) for

maximum performance (i.e., minimum reflection) during the test procedures presented

in Section 14. Other antennas used with the M5300 are factory-tuned and therefore do

not require tuning in the field.

6.2.6 Install GPS Antenna (Required Only if Radio has GPS Receiver Option)

If the M7300 radio is equipped with the GPS receiver option, the GPS receiver requires connection to an

externally-mounted GPS antenna. The GPS antenna must be kept at least six (6) inches away from any

other antenna mounted on the vehicle and it must have at least six inches of surface ground plane beneath

it. The following antenna installation procedure is recommended:

Connection to a GPS antenna is only required if the (optional) GPS receiver is installed

in the radio and if its functions will be utilized/required. For OpenSky radio system

applications, the GPS receiver can provide GPS data to either a locally-connected

computer/mobile data terminal, or over-the-air to the radio network. For

EDACS/ProVoice, P25 and conventional radio system applications, the GPS receiver

is typically only used to support a computer/mobile data terminal (MDT) running GPS

software connected to the radio via NMEA-formatted serial data link. Refer to Section

12 for additional information.

NOTE

1. Before cutting the cable to a shorter length, refer to the previous

WARNING. Some antenna cables should never to cut, while others

can be cut to as short as 6 feet.

2. Trim the end of the cable to the dimensions shown at the left, taking

care not to nick the cable’s inner conductor or its braid/shield.

3. Slip the crimp sleeve over the end of the cable, with its flanged-end

facing towards the end of the cable.

4. Place the contact onto the cable’s inner conductor. The end of the

con

tact and the cable’s inner dielectric must “butt square” together, as

shown to the left.

5. While

holding the contact tight against the dielectric, crimp the contact

to the inner conductor using an appropriate crimp tool.

Flair the cable’s outer braid/shield and then gently but firmly push the

contact (and cable end) into the connector housing until

a gentle snap

is felt, indicating the contact is locked in place.

7. Slip the crimp sleeve in place, butting its flanged-end against the

connector housing.

8. Using an appropriate crimp tool, crimp the crimp sleeve securely to

the cable end and connector housing. When crimping, hold the

housing and sleeve firmly together, and to the cable end.

MM-014763-001, Rev. G

A combination (“combo”) antenna kit includes a GPS antenna built into the base of the

mobile antenna. Refer to Table 4-7 (page 33) and/or Figure 6-1 (page 44) for available

combo antennas.

1. After selecting a mounting location, refer to the antenna manufacturer’s mounting and testing

instructions for installation guidance. Install the antenna in accordance with these instructions. If

necessary, contact the Technical Assistance Center. See page 25 for TAC contact information. Do not

alter the GPS antenna cable length; tie and stow excess cable as necessary.

2. Route the cable from the antenna base to the location of where the radio will be installed. Remove

headliner panel, interior panels, etc., as necessary. The cable must be kept out of casual contact from

persons within the vehicle. Tie and stow it as necessary to protect it from possible chafing.

3. The antenna cable is connected to the radio’s SMA receptacle-type (female) RF connector per a

procedure presented later in this manual. The cable and its (male) SMA connector must be protected

from damage, dirt, and/or metal shavings which may be generated during the mechanical and

electrical installation of the radio. Temporarily tying the connector and cable-end within a small

plastic bag is recommended.

NOTE

MM-014763-001, Rev. G

7 FRONT-MOUNT RADIO INSTALLATION

This section includes detailed instructions for mechanically installing and wiring a

front-mount M7300 mobile radio. For remote-mount M7300

mobile radio installation

procedures, refer to Section 8 which begins on page 61.

7.1 MOUNTING THE FRONT-MOUNT RADIO

The Mounting Bracket Kit for the front-mount M7300 mobile radio includes a heavy-gauge steel

U-shaped mounting bracket. The radio should be attached to a mounting surface using this bracket. The

bracket can be mounted above or below the radio. Kit contents are shown in Figure 7-2, and bracket

dimensions are shown in Figure 7-3.

Both the radio and the mounting bracket have multiple holes in both sides for adjusting the radio within

the bracket. The design allows for both front-to-rear tilting of the radio within the bracket for best viewing

angle, and a front-to-rear position offset. The radio has six (6) threaded mounting holes, three (3) per side,

and the mounting bracket has ten (10) corresponding holes, five (5) per side. The radio must be secured to

the bracket using at least four of the six M5 socket-head screws included in the Mounting Bracket Kit (2

screws per side).

Typically, the radio is front-to-rear centered within the bracket. However, it can be front-to-rear offset by

approximately 2 inches (5.1 centimeters), if required. Also, the radio can be positioned straight in the

bracket (i.e., parallel with the bottom surface of the bracket), or it can be tilted up or down at an angle of

between approximately 10 to 20 degrees. When positioned straight and centered front-to-rear within the

bracket, the radio extends approximately 2.5 inches (6.4 centimeters) from the front and rear edges of the

bracket. In the rear, additional clearance must be included for cables. The area directly at the front of the

radio must be completely clear of all objects (e.g., gear shift, other radio equipment, etc.) so the operator

can easily access and visualize the radio’s control head.

The mounting bracket must be attached to a secure metal surface that meets or exceeds the minimum

1/16-inch-thick steel sheet metal requirement in accordance with the following WARNING. For example,

it can be attached directly to the bottom of the dash if the gauge of the sheet metal is high and the surface

is firm and flat, or it can be attached to the transmission hump, etc., if a mounting wedge (not included) is

utilized. The front-mount M7300 radio weighs approximately 9.2 pounds (4.17 kilograms).

At a minimum, the mounting surface should be 16-gauge (approximately 1/16-inch

thick) steel sheet metal. Mounting to plastic or other material with low tensile and

shear strength could lead to an unsafe and/or failed mounting condition, turning

the radio and its mounting bracket into a projectile during a high-shock incident

such as a motor vehicle accident. If the selected mounting surface does not meet

the minimum 16-gauge

steel sheet metal requirement, the surface should be

reinforced with a metal backing plate (not supplied) or it should be reinforced

using some other approved mounting method.

In addition to improving safety of the installation, firm mounting also prevents

unreasonable vibration that could damage the radio, adversely affect transceiver

performance and/or cause its cable connections to loosen. An improperly mounted

M7300

radio may experience degradation in the quality of voice and data

communications.

NOTE

WARNING

CAUTION

MM-014763-001, Rev. G

Figure 7-1: Front-Mount M7300 Radio Dimensions

REAR VIEW

TOP

VIEW

10.5 inches

(267 mm)

2.38 inches

(60 mm)

2.0 inches

(51 mm)

FRONT VIEW

6.9 inches

(175 mm)

(Partial View of

DC Power Cable)

0.8 inches

(20 mm)

MM-014763-001, Rev. G

7.1.1 Mounting Bracket Installation

The front-mount M7300 radio’s mounting bracket is included with the Front-Mount Mounting Bracket

Kit KT101533V1. Kit contents are shown in Figure 7-2. This kit is Item 1 listed in Table 4-4 (page 28).

Mounting Bracket

Self-Tapping Screws for FM101319V1

Securing Bracket (Marked KTB0310), M5 Hardware for

to Mounting Surface Ties and Grommet Securing Radio to Bracket

Figure 7-2: Front-Mount Mounting Bracket Kit KT101533V1

When selecting a mounting location for the radio, verify sufficient clearance can be maintained around

the radio for installation and service access. A minimum clearance of approximately four (4) inches

(10 centimeters) is recommended at the rear, left and right sides of the radio. As previously stated, the

area directly at the front of the radio must be completely clear of objects so the operator can easily access

and visualize the radio’s control head.

As illustrated in Figure 7-3, the bracket is both left-to-right and front-to-rear symmetrical. It has eleven

(11) holes for securing it to a mounting surface. At least four (4) of these holes must be used to secure the

bracket to the mounting surface. Five 20-millimeter-long self-tapping screws are included in the

Mounting Bracket Kit for this purpose. However, some other type of hardware (not supplied) may be

used, such as #10-32 stainless-steel self-locking hardware (i.e., machine screws with washers and locking

nuts), or self-drilling screws. Self-drilling screws such as “TEK” screws do not require drilling of a pilot

hole prior to installation. Do not use common self-threading sheet metal screws because they will loosen

over time with vehicle vibrations.

The following mounting procedure is recommended:

1. Determine the best radio-to-bracket position and angle by test-fitting the radio into the mounting

bracket at the selected vehicle mounting location. Slide the radio between the sides of the bracket and

temporarily secure it to the bracket with several of the M5 socket-head screws from the bracket kit.

When positioned straight and centered front-to-rear within the bracket, the radio extends

approximately 2.5 inches (6.4 centimeters) from the front and rear edges of the bracket. In the rear,

additional clearance must be included for cables. The area directly at the front of the radio must be

completely clear of all objects (e.g., gear shift, other radio equipment, etc.) so the operator can easily

access and visualize the radio’s control head.

2. At the rear of the radio, verify sufficient clearance is available for cables and service access.

MM-014763-001, Rev. G

TOP VIEW SIDE VIEW

(Dimensions in Inches)

FRONT/REAR VIEW

(Dimensions in Inches)

(Made From KBT0310B)

Figure 7-3: Mounting Bracket FM101319V1 (Marked KTB0310) Dimensions

[for Front-Mount M7300 Mobile Radio (Radio Not Shown)]

3. If the mounting surface is not flat (such as the top of a transmission hump), construct a suitable

mounting wedge as necessary, and attach the wedge to the surface using an approved attachment

method. Never mount the bracket directly to a non-flat surface.

4. On the mounting surface, mark the selected location for the bracket, and then remove the radio from

the bracket.

5. Clean and remove any foreign material from the mounting surface.

6. Using the bracket as a template, and/or the dimensional information shown in Figure 8-3, mark and

drill at least four (4) mounting holes into the mounting surface as required per the type of hardware

used.

5.16

0.83 1.81 3.59 5.36 6.34

1.59

1.95

2.58

(FM101319V1)

3.56

3.20

7.17

2.68

Bracket-To-Vehicle

Screw Holes (11 places)

Bracket-To-Radio Screw Holes

(10 places, 5 each side)

MM-014763-001, Rev. G

Before drilling holes and/or installing mounting screws, verify these operations will not

damage or interfere with any existing vehicle component (the fuel tank, a fuel line, the

transmission housing, existing vehi

cle wiring, etc.). Always check to see how far the

mounting screws will extend below the mounting surface prior to installation. Always

deburr drilled holes before installing screws.

7. Temporarily remove the bracket and deburr all of the newly drilled holes.

8. If necessary, apply an approved paint or rust-inhibitor at the holes in the mounting surface.

9. Set the bracket back into place.

10. Install and tighten the mounting screws/hardware.

11. Verify the bracket is firmly secured to the mounting surface. A secure mount prevents unreasonable

vibration, which could damage the radio and/or cause its cable connections to loosen.

12. If the rear of the radio is easily accessible when the radio is positioned in the selected position within

the bracket, it is recommended that the radio be temporarily inserted into the bracket. Otherwise, do

not mount the radio into the bracket at this time, because several cable connections must be made at

the rear of the radio.

7.1.2 Inserting the Radio into the Mounting Bracket

The radio should now be inserted into the mounting bracket according to this procedure:

1. Lay the radio into the mounting bracket with the front of the radio facing in the correct direction

(usually towards the rear of the vehicle).

2. Secure the radio to the bracket using at least four (4) of the six (6) M5 x 10 mm stainless-steel socket-

head screws included with the Mounting Bracket Kit. These screws have captive lockwashers. Kit

contents are shown in Figure 7-2. This kit is Item 1 listed in Table 4-4 (page 28).

3. Tighten all screws using a 4-millimeter hex key wrench until each lockwasher is fully compressed

and the radio is firm and flush in between the brackets.

4. Check the mounting area for proper clearance for cable service looping and for air circulation, plus an

area to secure and rest the excess cable lengths.

Proper mounting is one factor that ensures optimal radio performance. An improperly

mounted radio may experience degradation in the quality of voice and data

communications.

7.2 FRONT-MOUNT RADIO’S DC POWER INSTALLATION

7.2.1 Overview of On/Off Power Wiring Configurations

The following power wiring configurations are supported:

• Radio turns on and off automatically with vehicle’s ignition switch/key — This configuration

allows the on/off state of the vehicle’s ignition switch/key to control the on/off power state of the

radio. The white wire of the radio’s DC Power Cable is connected to a fused switched power source,

typically identified as vehicle “Accessory” power. This source must switch on (up to positive (+)

battery voltage potential) when the vehicle’s ignition switch/key turns on, and it must switch off (to

CAUTION

NOTE

MM-014763-001, Rev. G

near zero volts) when the ignition switch/key turns off. The required fuse rating is 3 amperes. When

using this configuration, the on/off/volume control must be left in the on position for automatic

power-up/down to function properly.

In a front-mount M7300 radio installation, to fuse the white wire of the radio’s DC

Power Cable, a yellow waterproof (HFB type) fuse holder and a 3-amp AGC fuse are

included with the cable.

• Radio turns on and off with a manual switch — This configuration is used when, for example, the

radio has to remain on even when the ignition key must be removed from the vehicle and a separate

on/off switch is acceptable. The white wire of the radio’s DC Power Cable is connected to one side of

a manually-controlled switch, and the other side of this switch is connected to unswitched and fused

vehicle power. The required fuse rating is 3 amperes. When using this configuration, the

on/off/volume control must be left in the on position for automatic power-up/down to function

properly.

• Radio turns on with its on/off/volume control (“hot wired”) — This configuration allows radio

on/off power control only via its on/off/volume control. It may be desired if, for example, the radio

has to remain on even when the ignition key must be removed from the vehicle and a separate on/off

switch is not desired and/or not acceptable. The white wire of the radio’s DC Power Cable must be

connected to unswitched and fused vehicle power. The required fuse rating is 3 amperes.

In all of the above cases, the radio’s main DC power input (red wire) must be connected through an in-

line fuse to unswitched vehicle DC power. The red wire must be connected to raw battery power (positive

battery terminal) via the supplied fuse.

Any DC input power

provided to the radio shall be no higher or lower than

13.6 volts DC ±10%. The DC input power should be free and clear of any AC noise or

DC spikes above 18 v

olts. If the vehicle cannot meet these requirements, then DC

conditioning will be required before any DC power is connected to the radio. This

includes conditioning for both the radio’s main DC power input lead and for its

switched ignition sense power input. DC conditioning can be accomplished by a noise

filter or DC isolation equipment such as Harris part number FL-018314-001 or FL-

018314-002, or similar units with equal specifications. The fuse must be placed in-line

before any noise filter. Contact TAC for additional information.

7.2.2 DC Power Cable and Main Fuse Holder Installation

The radio’s DC Power Cable has a 3-pin connector, a 20-foot red wire (for the main power connection), a

20-foot white wire (for the switched power source connection), and a 4-foot black wire (for the ground

connection). It is supplied with waterproof fuse holders, two AGC-type fuses, and non-insulated ring

terminals. The following installation procedures are recommended:

7.2.2.1 Black Wire Connection (Ground Wire)

1. Connect the radio’s DC Power Cable to the radio by mating its 3-pin connector to the radio’s 3-pin

power cable connector as follows: Visually align the key and firmly push and turn the outer locking

ring clockwise until it stops. A click will be sensed to confirm proper mating.

2. Prepare to connect the cable’s black wire to vehicle ground by locating an area of vehicle metal

within approximately two (2) feet of the radio. This surface must have a solid and stable connection

to vehicle ground. If not, add grounding strap(s) as necessary.

NOTE

CAUTION

MM-014763-001, Rev. G

3. Strip the area of any paint or dirt to expose a bare metal surface, approximately ¾-inch square.

4. Drill a hole in the approximate center of the bare metal surface, and deburr it. A ⅜-inch non-

insulated ring terminal is supplied with the cable to make this ground connection. Therefore, hole

diameter should be appropriate for the utilized grounding screw/bolt size and type used to connect the

ring terminal to the bare metal surface. This hardware is not supplied.

5. Cut the black wire to the required length plus some additional length for a service loop, then strip

insulation back approximately ¼-inch.

6. Crimp a ⅜-inch non-insulated ring terminal (supplied with the cable) to the end of the black wire.

7. Attach the ring terminal and black wire to the bare metal surface using stainless-steel self-locking

hardware (i.e., machine screws with washers and locking nuts) or other appropriate hardware to

ensure a reliable terminal-to-metal contact. Tighten securely.

8. Apply an approved paint or rust-inhibitor over the remaining exposed bare metal surface and around

the ring terminal.

7.2.2.2 Red Wire and Main Fuse Holder Connection (Radio’s Main Power Wire)

1. Continue installation of the radio’s DC Power Cable by routing its 20-foot 10-AWG red wire to the

location of the vehicle’s battery (or its main DC bus bar or stud). Remove interior panels, door kick

panels, etc., and route the wire through existing channels in the vehicle body as necessary. Protect the

wire from possible chafing where necessary. Tie and stow the wire as necessary.

Plan the routing of the 10-AWG red wire carefully, using an existing access hole in the

vehicle’s firewall if possible. Alternately, drill a new hole approximately ½-inch in

diameter and install a small rubber grommet (one supplied with the bracket kit) to

protect the wire from chafing at the hole’s sharp metal edge. To prevent fumes from

entering the passenger compartment, this hole/grommet/wire combination must

also be sealed with a silicon-based sealer before completing the installation.

Do not install any wiring or fuse holder over or in the near vicinity of the vehicle’s

engine. Excessive engine heat can cause permanent damage to these components and

can lead to intermittent electrical connection to the battery.

Before making connections to the battery’s positive post, carefully disconnect the

battery’s negative (ground) cable(s). This will prevent tools or other metallic

objects which come in contact with the battery’s positive terminal from shorting to

vehicle ground, causing sparks or even a fire or an explosion! When disconnecting

the negative cable(s), cover/insulate the positive post(s) if it is not already so a tool

cannot short between the posts. Some vehicles, such as those with diesel engines

have more than one battery; in this case, disconnect the negative cables at all

batteries.

Radio fuses should not

be installed until all wiring is complete. This will prevent

the radio from powering up prematurely and/or causing an in-rush of current that

could lead to shorting of the battery, sparks, or even fire.

2. Obtain the orange waterproof (HFB type) fuse holder included with the DC Power Cable.

3. Observe and follow the previously presented WARNING!

CAUTION

WARNING

MM-014763-001, Rev. G

4. Cut the red wire to the required length for connection to the battery’s positive (+) battery terminal (or

the main DC bus bar or stud).

5. Prepare to splice the fuse holder into the red wire by cutting it again, at approximately three (3) to six

(6) inches from the end.

6. Strip all three (3) wire ends back approximately ⅜-inch, place a fuse holder shell on each wire, and

securely crimp a fuse holder terminal to each wire end. Before crimping, verify fuse holder shells are

oriented in the correct directions (i.e., with each large end towards the wire end).

7. Label this fuse holder and red wire appropriately (e.g., “M7300 Main Power: 15-AMP FUSE”).

8. Do NOT install a fuse into the fuse holder at this time.

9. Crimp an appropriate electrical terminal to the short red wire. A corrosion-resistant ⅜-inch ring

terminal is included with the cable for this purpose, but another size corrosion-resistant terminal type

(not supplied) may be used if required.

10. Connect the ring terminal directly to the battery’s positive post (or if present, to a stud on the battery’s

main/non-switched power distribution terminal block).

A front-mount M7300 mobile radio installation may be equipped with additional CH-721

control heads in a multi-head installation. In this case, refer to Section 8.3 (begins on page

71) for control head installation procedures.

7.2.2.3 White Wire Connection

A review of the information presented in Section 7.2.1 (page 55) may be beneficial at this time. As

required per the chosen power-up configuration, connect the white wire by following one of the three

procedures presented in the respective sub-section that follows.

7.2.2.3.1 Radio Turns On and Off with Vehicle’s Ignition Switch/Key

With this wiring configuration, the radio (and its control head) automatically turns on and off with the

vehicle’s ignition switch/key. The white wire is sometimes referred to as the “white ignition switch wire”

or the “ignition sense input wire.” In this configuration, the white wire connects to a switched power

source, typically identified as “Accessory” power, that switches on and off with the vehicle’s ignition

switch/key. When using this configuration, the CH-721 control head’s on/off/volume control must be left

in the on position for automatic power-up/down to function properly.

The white ignition sense wire must be connected to a fused power source that switches

from approximately zero volts to approximately +13.6 volts when the vehicle’s ignition

switch/key is turned from the OFF position to the ACCESSORY and RUN positions.

Use of a switched power source that is subject to voltage changes as a result of other

actions, such as opening a vehicle door, may result in undesirable radio power cycles.

1. Locate the vehicle’s switched ignition or “Accessory” power connection point that will be used for

the switched ignition 12-volt DC power source. This point is typically located at or near the vehicle’s

fuse panel. It may be necessary to consult the vehicle manufacturer’s wiring diagram.

2. Route the white wire of the radio’s DC Power Cable from the back of the radio to the area near this

connection point. Protect the wire from possible chafing as necessary.

3. Obtain the other waterproof (HFB-type) fuse holder included with the radio’s DC Power Cable.

NOTE

MM-014763-001, Rev. G

4. Cut excess length from the white wire and splice the fuse holder into it, near the location of the

connection point.

5. Using an appropriate electrical terminal, connect the white wire to the switched power connection

point. An open-barrel spade terminal is included with the cable for this purpose, but another type of

terminal (not supplied) may be used as required.

6. Obtain the 3-amp AGC-type fuse included with the cable, and install it into the fuse holder.

7. Tie and stow all wiring as necessary so it remains out of the way of casual contact and wire chafe is

avoided.

8. Continue with the speaker installation procedures presented in Section 9.1 on page 87.

7.2.2.3.2 Radio Turns On and Off with a Manual Switch

With this wiring configuration, the radio (and its control head) is manually turned on and off via an on/off

switch mounted separately from the radio, not through the vehicle’s ignition switch/key. This

configuration is used when, for example, the radio must remain on even when the ignition key must be

removed from the vehicle and a separate on/off switch is acceptable and/or required. In this configuration,

the white wire connects to a fused switched power source such as that provided by a toggle switch

mounted on the vehicle’s dash panel. When using this configuration, the CH-721 control head’s

on/off/volume control must be left in the on position for automatic power-up/down to function properly.

1. Route the white wire of the radio’s DC Power Cable from the back of the radio to an area near the

location of the panel-mounted on/off switch. Protect the wire from possible chafing as necessary.

2. Cut a short section (6 to 8 inches) off the end of the white wire and strip the ends.

3. Obtain the other waterproof (HFB-type) fuse holder included with the radio’s DC Power Cable, and

crimp one half of it to one end of the short section of wire.

4. Using an appropriate electrical terminal, connect this short white wire to unswitched 12-volt DC

power source at or near the vehicle’s fuse box.

5. Cut another section of white wire from the cable. This wire must be long enough to reach from the

fuse holder to the location of the panel-mounted on/off switch.

6. Strip one end of this wire and crimp the other half of the waterproof fuse holder to this wire end.

7. Strip the other end of this wire and, using an appropriate electrical terminal, connect it to the common

terminal of the switch.

8. Connect the white wire of the power cable to the load (switched) side of the switch.

9. If not already, mount the switch to the vehicle’s dash panel, or other customer-selected location.

10. Obtain the 3-amp AGC-type fuse included with the cable, and install it into the fuse holder.

11. Tie and stow these wires as necessary so they remain out of the way of casual contact and wire chafe

is avoided.

12. Label this power switch accordingly. For example: “RADIO ON/OFF.”

13. Continue with the speaker installation procedures presented in Section 9.1 on page 87.

7.2.2.3.3 Radio Is “Hot Wired”

In the “hot-wired” configuration, the radio (and its control head) is turned on and off only by the control

head’s on/off/volume control located on the front panel of the control head. In this configuration, the

white wire must be connected to unswitched and fused 12-volt vehicle power. Follow the procedure

MM-014763-001, Rev. G

presented in Section 7.2.2.3.1, except connect the white wire to unswitched battery power instead of

switched (“Accessory”) power. Be sure to fuse this connection with the provided in-line fuse holder and

3-amp AGC fuse.

7.3 TERMINATE CAN PORTS

Add a CAN Terminator to each CAN port connector on the rear of the radio. Two (2) CAN Terminators

are included in the installation kit for this purpose (item 3 in Table 4-4).

MM-014763-001, Rev. G

8 REMOTE-MOUNT RADIO INSTALLATION

This section includes detailed instructions for mechanically ins

talling and wiring a

remote-mount M7300 mobile radio. For front-mount M7300

mobile radio installation

procedures, refer to Section 7 which begins on page 51.

8.1 MOUNTING THE REMOTE-MOUNT RADIO

This section provides details on mounting a remote-mount M7300 mobile radio in the vehicle. CH-721

control head installation procedures are included in Section 8.3 which begins on page 71. HHC-731

hand-held controller installation procedures are included in Section 8.4 which begins on page 80.

As an assembled unit, the radio weighs approximately 8 pounds (3.63 kilograms). The preferred mounting

of the radio is on top of a firm, flat surface. Radio dimensions are shown in Figure 8-1.

Installation Kit MAMW-NZN7R (contents listed in Table 4-5 on page 29) contains the

most complete set of materials for installing the remote-mount M7300 mobile radio.

Therefore, the following instructions make repeated reference to this kit. Item numbers

given in parenthesis refer to items in the kit.

Prior to beginning the installation, verify the radio has the proper version of software

and verify it has been configured properly for customer usage. Consult with the radio

system network administration personnel as necessary.

Though generally mounted in a trunk or remote location, the remote-mount mobile

radio must be kept away from heat sources. Mounting it in a location which is out of

direct sunlight is recommended but not required. Adequate ventilation space must be

provided to the side fins. The radio reduces its RF output power when its ambient

temperature exceeds approximately +140 o Fahrenheit (+60o Celsius).

At a minimum, the mounting surface should be 16-gauge (approximately 1/16-inch

thick) steel sheet metal. Mounting to plastic or other material with low tensile and

shear strength could lead to an unsafe and/or failed mounting condition, turning

the radio and its mounting bracket into a projectile during a high-shock incident

such as a motor vehicle accident. If the selected mounting surface does not meet

the minimum 16-gauge

steel sheet metal requirement, the surface should be

reinforced with a metal backing plate (not supplied) or it should be reinforced

using some other approved mounting method.

Before drilling holes and/or installing mounting screws, verify these operations will not

damage or interfere with any existing vehicle component (the fuel tank, a fuel line, the

transmission housing, existing vehicle wiring, etc.). Always check to see how far the

mounting screws will extend below the mounting surface prior to installation. Always

deburr drilled holes before installing screws.

NOTE

CAUTION

WARNING

CAUTION

MM-014763-001, Rev. G

Figure 8-1: Remote-Mount M7300 Radio Dimensions

REAR VIEW

FRONT VIEW

2.0 inches

(51 mm)

2.0 inches

(51 mm)

6.9 inches

(175 mm)

6.9 inches

(175 mm)

TOP

VIEW

(Partial View of

DC Power Cable)

9.2 inches

(234 mm)

MM-014763-001, Rev. G

8.1.1 Mounting Bracket Installation

The remote-mount radio’s mounting bracket is included with the Remote-Mount Mounting Bracket Kit

KT23117. Kit contents are shown in Figure 8-2. This kit is Item 1 listed in Table 4-5 (page 29).

M5 Hardware for Mounting Bracket

Securing Radio FM103111V1

to Bracket

Figure 8-2: Remote-Mount Mounting Bracket Kit KT23117

Typically, the radio’s mounting bracket is mounted in the vehicle’s trunk, on the top surface of the trunk

tray or on the trunk floor. However, it can be suspended from the trunk’s rear deck if the surface is

completely flat and the thickness of deck’s sheet metal is adequate.

When selecting a mounting location for the radio, verify sufficient clearance can be maintained around

the radio for installation and service access. A minimum clearance of four (4) inches (approximately

10 centimeters) is recommended at the rear, left and right sides of the radio, and at least 2 inches

(approximately 5 centimeters) of clearance is recommended at the front of the radio.

As illustrated in Figure 8-3, the bracket is left-to-right symmetrical and the shortest portion of its side

rails are at the rear.

As installations differ, bracket-to-vehicle mounting screws are not included. Utilization of ¼-inch-

diameter, 28-thread-per-inch (¼-28) stainless-steel self-locking hardware (i.e., machine screws with

washers and locking nuts) is highly recommended. However, ¼-inch stainless-steel self-drilling screws

may be employed to speed installation time. Self-drilling screws such as “TEK” screws do not require

drilling of a pilot hole prior to installation. Do not use common self-threading sheet metal screws because

they will loosen over time with vehicle vibrations.

The bracket has four (4) available mounting holes. All four must be used to secure the bracket to its

mounting surface.

The following mounting procedure is recommended:

1. Using the mounting bracket as a template, and/or the dimensional information shown in Figure 8-3,

mark and drill four (4) mounting holes into the mounting surface as required per the type of hardware

used. When the radio is installed in the bracket, it will extend approximately one (1) inch past the

front edge bracket, and at the rear, it will extend approximately ½-inch past the rear edge of the

bracket. This distance at the rear does not include space required for cable connections at the rear of

the radio. As previously stated, a clearance of least four (4) inches (approximately 10 centimeters) at

the rear of the radio is recommended.

2. Temporarily remove the bracket and deburr all of the newly drilled holes.

MM-014763-001, Rev. G

3. If necessary, apply an approved paint or rust-inhibitor at the holes in the mounting surface.

4. Set the bracket back into place, and verify front-to-rear orientation.

5. Install and tighten the mounting screws/hardware.

6. Verify the bracket is firmly secured to the mounting surface. A secure mount prevents unreasonable

vibration, which could damage the radio and/or cause its cable connections to loosen.

TOP VIEW SIDE VIEW

(Dimensions in Inches)

FRONT VIEW

(Dimensions in Inches)

(Made From FM103111 Rev. B)

Figure 8-3: Mounting Bracket FM103111V1 Dimensions

[for Remote-Mount M7300 Mobile Radio (Radio Not Shown)]

Bracket-To-Vehicle

Screw Holes

(4 places)

Bracket-To-Radio

Screw Holes

(6 places,

3 each side)

Rear of Bracket

Front of Bracket

MM-014763-001, Rev. G

8.1.2 Inserting the Radio into the Mounting Bracket

The radio should now be inserted into the bracket according to this procedure:

1. Lay the radio down into the mounting bracket with the front of the radio at the front of the mounting

bracket.

2. Attach the radio into the mounting bracket using the six (6) M5 x 10 mm stainless-steel hex-head

screws, and flatwashers and lockwashers included with the Mounting Bracket Kit (item 1 in Table

4-5). Tighten all six screws using a 5/16-inch wrench (or a ¼-inch-drive ratchet with a 5/16-inch socket)

until each lockwasher is fully compressed and the radio is firm and flush in between the brackets.

3. Check the mounting area for proper clearance for cable service looping and for air circulation, plus an

area to secure and stow the excess cable lengths.

Proper mounting is one factor that ensures optimal radio performance. An improperly

mounted radio m

ay experience degradation in the quality of voice and data

communications.

8.2 REMOTE-MOUNT RADIO’S DC POWER INSTALLATION

Unless otherwise noted, references in the following subsections to the “control head”

also apply to the hand-held controller.

8.2.1 Overview of On/Off Power Wiring Configurations

Radio on/off power control is accomplished by the control head, except in the case of a data-only radio

installation which has no control head. In a standard installation, when the control head is turned on, it

“wakes-up” the radio via data activity on the CAN link. The following power wiring configurations are

supported:

• Radio turns on and off automatically with vehicle’s ignition switch/key — This configuration

allows the on/off state of the vehicle’s ignition switch/key to control the on/off power state of the

radio. The white wire of the control head’s DC Power Cable is connected to a fused switched power

source, typically identified as vehicle “Accessory” power. This source must switch on (up to positive

(+) battery voltage potential) when the vehicle’s ignition switch/key turns on, and it must switch off

(to near zero volts) when the ignition switch/key turns off. The required fuse rating is 3 amperes.

When using this configuration, the CH-721 control head’s on/off/volume control must be left in the

on position for automatic power-up/down to function properly.

In a remote-mount radio installation, to fuse the white wire of the control head’s DC

Power Cable, a yellow waterproof (HFB type) fuse holder and a 3-amp AGC fuse are

included with the cable.

• Radio turns on and off with a manual switch — This configuration is used when, for example, the

radio must remain on even when the ignition key must be removed from the vehicle and a separate

on/off switch is acceptable. The white wire of the control head’s DC Power Cable is connected to one

side of a manually-controlled switch, and the other side of this switch is connected to unswitched and

fused vehicle power. The required fuse rating is 3 amperes. When using this configuration, the

CH-721 control head’s on/off/volume control must be left in the on position for automatic power-

up/down to function properly. This does not apply to the HHC-731 hand-held controller.

NOTE

MM-014763-001, Rev. G

Figure 8-4: Wiring Diagram for a Remote-Mount Radio Installation

CH-721 SCAN MODEL

CONTROL HEAD

CU23218-0002

(MAMW-NCP9E)

CH-721 SYSTEM MODEL

CONTROL HEAD

CU23218-0004

(MAMW-NCP9F)

DTMF

MICROPHONE

MC-103334-040 OR

MC-103334-041

(INCLUDED WITH

MAMW-NMC9C)

STANDARD

MICROPHONE

MC-101616-040 OR

MC-101616-041

(INCLUDED WITH

MAMW-NMC7Z)

NOISE-CANCELING

MICROPHONE

MC-103334-050 OR

MC-103334-051

(INCLUDED WITH

MAMW-NMC9D)

CH-721 MOUNTING

BRACKET KIT

KT-008608

[SUPPLIED WITH

INSTALLATION KIT]

• IF IGNITION SENSE ON/OFF FUNCTIONALITY IS REQUIRED,

CONNECT WHITE WIRE OF CONTROL HEAD’S DC POWER CABLE

TO A SWITCHED 13 VDC POWER SOURCE USING THE SUPPLIED

FUSE AND FUSE HOLDER.

• IF IGNITION SENSE ON/OFF FUNCTIONALITY IS NOT REQUIRED,

CONNECT WHITE WIRE OF CONTROL HEAD’S DC POWER CABLE

TO AN UNSWITCHED 13 VDC POWER SOURCE USING THE

SUPPLIED FUSE AND FUSE HOLDER.

WATERPROOF CAP

FM-104859-001 (NOT SHOWN)

FOR DB-9 SERIAL CONNECTOR

[SUPPLIED WITH INSTALLATION KIT]

WATERPROOF CAP

FM-104859-002 (NOT SHOWN)

FOR DB-25 ACCESSORY CONNECTOR

[SUPPLIED WITH INSTALLATION KIT]

REAR VIEW OF CONTROL HEAD

NEG POS

3-AMP FUSE &

FUSE HOLDER

(HFB TYPE) RED

RED RED

5-AMP

FUSE

& FUSE

HOLDER

(HFB TYPE)

3-AMP FUSE &

FUSE HOLDER

(HFB TYPE)

15-AMP

FUSE &

FUSE

HOLDER

(HFB

TYPE)

RED

WHITE

RED

RING

TERMINALS

VEHICLE

DC POWER

DISTRI-

BUTION

BLOCK

(E.G.,

“POWER

ACCESS

POINT”)

VEHICLE BATTERY

NOTE: BATTERY GROUND (-)

CONNECTION NOT INDICATED.

CAN

TERMINATOR

CD-014027-001

[SUPPLIED

WITH

INSTALLATION

KIT]

RED

WHITE

BLACK

(SHORT AS POSSIBLE)

RING TERMINAL

(CONNECT TO VEHICLE

CHASSIS GROUND)

CAN CABLE CA-009562-030 (30 FEET LONG) [SUPPLIED WITH INSTALLATION KIT]

SPEAKER CABLE

MAMROS0034-NN006

[SUPPLIED WITH

INSTALLATION KIT]

EXTERNAL SPEAKER

LS102824V10

[SUPPLIED WITH

INSTALLATION KIT] WHITE WIRE OF RADIO’S DC

POWER CABLE (LABELED

AND COILED NEAR

VEHICLE’S FUSE BOX)

DC POWER CABLE CA-012616-001

(SUPPLIED WITH INSTALLATION KIT)

VEHICLE FUSE

BOX, ETC.

WHITE

MM-014763-001, Rev. G

GPS ANTENNA

(OPTIONAL; SEE TEXT FOR

SPECIFIC PART NUMBERS)

DC POWER CABLE

CA-012365-001

(SUPPLIED WITH

INSTALLATION KIT)

RING TERMINAL

(CONNECT TO VEHICLE

CHASSIS GROUND)

BLACK

BLACKRED

WHITE

M7300 MOBILE RADIO

VHF RADIO = RU-144750-041;

UHF-L RADIO = RU-144750-021;

UHF-H RADIO = RU-144750-031;

700 & 800 MHz RADIO = RU-144750-061

REAR VIEW

MOBILE

ANTENNA

(OPTIONAL;

SEE TEXT

FOR

SPECIFIC

PART AND

OPTION

NUMBERS)

MALE TNC RF

CONNECTOR

(SUPPLIED WITH

ANTENNA)

CAN TERMINATOR

CD-014027-001

[SUPPLIED WITH

INSTALLATION KIT]

Figure 8-4: Wiring Diagram for a Remote-Mount Radio Installation (Cont.)

MM-014763-001, Rev. G

• Radio turns on with control head’s on/off/volume control (“hot wired”) — This configuration

allows radio on/off power control only via the control head’s on/off/volume control. It may be desired

if, for example, the radio must remain on even when the ignition key must be removed from the

vehicle and a separate on/off switch is not desired and/or not acceptable. The white wire of the

control head’s DC Power Cable must be connected to unswitched and fused vehicle power. The

required fuse rating is 3 amperes.

In all of the above cases, both the radio’s main DC power input (red wire) and the control head’s main

DC power input (also a red wire) must each be connected through an in-line fuse to unswitched vehicle

DC power. The red wire of the radio’s DC Power Cable must be connected to raw battery power (positive

battery terminal) via the supplied fuse. Likewise, the red wire of the control head’s DC Power Cable must

also be connected to unswitched vehicle DC power via another supplied fuse. The white ignition wire of

the radio’s DC Power Cable is only used for the data-only radio (i.e., no control head), and it is the only

means for turning its power on in the data-only radio installation.

Any DC input power

provided to the radio shall be no higher or lower than

13.6 volts DC ±10%. The DC input power should be free and clear of any AC noise or

DC spikes above 18 volts. If the vehicle

cannot meet these requirements, then DC

conditioning will be required before any DC power is connected to the radio. This

includes conditioning for both the radio’s main DC power input lead and for its

switched ignition sense power input. DC conditioning can be accomplished by a noise

filter or DC isolation equipment such as Harris part number FL-018314-001 or FL-

018314-002, or similar units with equal specifications. The fuse must be placed in-line

before any noise filter. Contact TAC for additional information.

8.2.2 DC Power Cable and Main Fuse Holder Installation

The radio’s DC Power Cable has a 3-pin connector, a 20-foot red wire (for the main power connection), a

20-foot white wire (only connected in a data-only radio installation), and a 4-foot black wire (for the

ground connection). It is supplied with waterproof fuse holders, two AGC-type fuses, and non-insulated

ring terminals. The following installation procedures are recommended:

8.2.2.1 Black Wire Connection (Ground Wire)

1. Connect the radio’s DC Power Cable to the radio by mating its 3-pin connector to the radio’s 3-pin

power cable connector as follows: Visually align the key and firmly push and turn the outer locking

ring clockwise until it stops. A click will be sensed to confirm proper mating.

Do not confuse the radio’s DC Power Cable which has a 10-AWG red wire with the

control head’s DC Power Cable which has a 12-AWG red wire. The radio requires

much more DC operatin

g current than the control head. Therefore, it requires the

larger wire size of 10-AWG. The part number of the radio’s DC Power Cable is

CA-012365-001.

2. Prepare to connect the cable’s black wire to vehicle ground by locating an area of vehicle metal

within approximately two (2) feet of the radio. This surface must have a solid and stable connection

to vehicle ground. If not, add grounding strap(s) as necessary.

3. Strip the area of any paint or dirt to expose a bare metal surface, approximately ¾-inch square.

4. Drill a hole in the approximate center of the bare metal surface, and deburr it. A ⅜-inch non-

insulated ring terminal is supplied with the cable to make this ground connection. Therefore, hole

CAUTION

MM-014763-001, Rev. G

diameter should be appropriate for the utilized grounding screw/bolt size and type used to connect the

ring terminal to the bare metal surface. This hardware is not supplied.

5. Cut the black wire to the required length plus some additional length for a service loop, then strip

insulation back approximately ¼-inch.

6. Crimp a ⅜-inch non-insulated ring terminal (supplied with the cable) to the end of the black wire.

7. Attach the ring terminal and black wire to the bare metal surface using stainless-steel self-locking

hardware (i.e., machine screws with washers and locking nuts) or other appropriate hardware to

ensure a reliable terminal-to-metal contact. Tighten securely.

8. Apply an approved paint or rust-inhibitor over the remaining exposed bare metal surface and around

the ring terminal.

8.2.2.2 Red Wire and Main Fuse Holder Connection (Radio’s Main Power Wire)

1. Continue installation of the radio’s DC Power Cable by routing its 20-foot 10-AWG red wire to the

location of the vehicle’s battery (or its main DC bus bar or stud). Remove interior panels, door kick

panels, etc., and route the wire through existing channels in the vehicle body as necessary. Protect the

wire from possible chafing where necessary. Tie and stow the wire as necessary.

Plan the routing of the 10-AWG red wire carefully, using an existing access hole in the

vehicle’s firewall if possible. Alternately, drill a new hole approximately ⅜-inch in

diameter and install a small rubber grommet to protect the wire from chafing on the

hole’s sharp metal edge.

To prevent fumes from entering the passenger

compartment, this hole/grommet/wire combination must also be sealed with a

silicon-based sealer before completing the installation.

Do not install any wiring or fuse holder over or in the near vicinity of the vehicle’s

engine. Excessive engine heat can cause permanent damage to these components and

can lead to intermittent electrical connection to the battery.

Before making connections to the battery’s positive post, carefully disconnect the

battery’s

negative (ground) cable(s). This will prevent tools or other metallic

objects which come in contact with the battery’s positive terminal from shorting to

vehicle ground, causing sparks or even a fire or an explosion! When disconnecting

the negative cable(s

), cover/insulate the positive post(s) if it is not already so a tool

cannot short between the posts. Some vehicles, such as those with diesel engines

have more than one battery; in this case, disconnect the negative cables at all

batteries.

Radio and control head fuses should not

be installed until all wiring is complete.

This will prevent the radio from powering up prematurely and/or causing an in-

rush of current that could lead to shorting of the battery, sparks, or even fire.

2. Obtain the orange waterproof (HFB type) fuse holder included with the DC Power Cable.

3. Observe and follow the previously presented WARNING!

4. Cut the red wire to the required length for connection to the battery’s positive (+) battery terminal (or

the main DC bus bar or stud).

CAUTION

WARNING

MM-014763-001, Rev. G

5. Prepare to splice the waterproof fuse holder into the red wire by cutting it again, at approximately

three (3) to six (6) inches from the end.

6. Strip all three (3) wire ends back approximately ⅜-inch each, place a fuse holder shell on each wire,

and securely crimp a fuse holder terminal to each wire end. Before crimping, verify fuse holder shells

are oriented in the correct directions (i.e., with each large end towards the wire end).

7. Label this fuse holder and red wire appropriately (e.g., “M7300 Main Power: 15-AMP FUSE”).

8. Do NOT install a fuse into the fuse holder at this time.

9. Crimp an appropriate electrical terminal to the short red wire. A corrosion-resistant ⅜-inch ring

terminal is included with the cable for this purpose, but another size corrosion-resistant terminal type

(not supplied) may be used if required.

10. Connect the ring terminal directly to the battery’s positive post (or if present, to a stud on the battery’s

main/non-switched power distribution terminal block).

Most M7300 radio installations have one or more control heads connected to the radio. In

an installation of this type, the white wire of the radio’s

DC Power Cable requires no

electrical connection. Rather than be cut from the cable, it is recommended that it be

routed up to the vehicle’s fuse box, coiled, labeled, and stowed for possible future use.

The white wire of the control head’s

DC Power Cable is the radio installation’s ignition

sense input for on/off power control of both the control head and radio. Radio on/off

power control is accomplished by the control head. The control head “wakes-up” the radio

via data activity on the CAN link.

8.2.2.3 White Wire Connection (for Data-Only Radio Installations)

In the case of a data-only radio installation (i.e., no control head connected to the radio), the white wire of

the radio’s DC Power Cable is used as the radio installation’s ignition sense input. Therefore, it requires

electrical connection to a fused switched power source. The following procedure is recommended:

1. Route the 20-foot white wire of the radio’s DC Power Cable to the location of the vehicle’s switched

power source connection point, typically identified as “Accessory” power. Remove interior panels,

door kick panels, etc., and route the wire through existing channels in the vehicle body as necessary.

Protect the wire from possible chafing where necessary. Tie and stow the wire as necessary.

2. Connect this white wire through a fuse to the switched power source in accordance with the

instructions presented within the respective subsection of Section 8.3.4.2 (page 77) for the control

head’s white wire. Follow the procedure in Section 8.3.4.2.1 (page 77) if the vehicle’s ignition

switch/key must control the data-only radio’s on/off power. Follow the procedure in Section 8.3.4.2.2

(page 78) if a manually-controlled switch must control the data-only radio’s on/off power.

The “hot wired” wiring configuration (as depicted in Section 8.3.4.2.3) cannot be utilized

for the data-only radio, since this configuration does not employ the DC Power Cable’s

white wire.

8.2.3 Additional Hook-Up Required for a Data-Only Radio Installation

The CTLON (control power on) logic input of a data-only radio must be grounded per this procedure:

1. Obtain M5300/M7300 Option Cable CA-012349-001.

2. Connect this cable’s male DB-44 connector to the female DB-44 connector on the rear of the radio.

Tighten the connector’s two (2) jackscrews firmly.

NOTE

MM-014763-001, Rev. G

3. Using an appropriate DB-25 connector, hook-up wire, ring terminal and hardware (not supplied),

connect pin 14 of this cable’s DB-25 connector (P4 pin 14) to vehicle ground. This grounds the

radio’s CTLON input at pin 15 of the DB-44 connector. See Section 11.1 for additional information

on the Option Cable. Keep the length of the ground wire as short as reasonably possible.

4. Tie and stow the cable and wire as necessary to protect them from possible cable chafing.

When servicing the radio and/or control head, always manually power-down the radio

equipment via the control head’s on/off/volume control knob, and then remove the main

power fuse near the battery.

8.3 CH-721 CONTROL HEAD INSTALLATION

This section includes installation instructions for the CH-721 control head. If the radio is

being installed with and connected to an HHC-731 hand-held controller, skip this section

and advance to Section 8.4 which begins on page 80.

8.3.1 General Information

The remote-mount M7300 mobile radio must be connected to a control head to provide the operator-to-

radio interface. Two different control heads are available — the CH-721 Scan model and the CH-721

System model. See Figure 8-5 and Figure 8-6 respectively. The CH-721 Scan model control head features

three (3) large menu selection buttons. The System model control head has a 12-button keypad to allow

advanced operations without the need of a DTMF-capable microphone.

Figure 8-7 on page 72 illustrates the rear panel of the two control head models. Both models have

identical rear panels and rear panel connectors.

Figure 8-5: CH-721 Scan Model Control Head Front Panel

CAUTION

NOTE

3-Line Graphical Vacuum

Fluorescent Display

Microphone Connector

On/Off/

Volume

Control

System/-

Group/-

Channel

Selection

Control

•/•• Ramp Control

Preset/

Softkey

Buttons

Emergency/

Home Button

+/- Ramp Control

Ambient Light-Level Sensor

Transmit

and Busy

Indicators

Scan On/Off Button

Clear Button

Menu Button

Option Button

MM-014763-001, Rev. G

(Other controls are same as shown for Scan model.)

Figure 8-6: CH-721 System Model Control Head Front Panel

The CH-721 control heads feature a large easy-to-read 3-line graphical vacuum fluorescent display, an

on/off/volume control knob, menu controls and buttons, trunking mode buttons, an emergency/home

button, a scan on/off button, and three (3) preset buttons. Other front panel components include a

microphone connector and LED-type indicators. One LED indicator is the busy indicator that lights when

the radio is receiving a call and one is the transmitter-enabled indicator that lights when the radio is

transmitting. The front panel also has an ambient light sensor for automatic display dimming.

Figure 8-7: CH-721 Rear Panel (both control head models)

Prior to installing the control head, verify it has the proper software version installed and

verify it has been properly configured for customer use.

Because Installation Kit MAMW-NZN7R contains the most complete set of materials for

installing the radio and control head, the following instructions make repeated reference

to items within this kit. Item numbers given in parenthesis refer to items in the kit as

listed in Table 4-5 on page 29.

NOTE

12-Button Keypad

Clear Button

Menu Button

Option Button

CAN Port

Connectors

(2 places)

Speaker Audio

Connector

Serial Port Connector

(DB-9)

DC Power

Connector

Accessory Connector

(DB-25)

Note: Serial and Accessory connectors are

shown without waterproof covers.

MM-014763-001, Rev. G

In a mobile installation, more than one control head can be connected to one mobile radio for multi-head

installations. A multi-head installation may be required in a vehicle such as a fire truck or any large

vehicle where more than one operator may require use of the radio. Multi-head installations also provide

other benefits such as intercom functionality between different operator positions.

8.3.2 Control Head Mechanical Installation

8.3.2.1 Selecting the Mounting Location

When selecting a location for the CH-721 control head, first observe the safety and operator-convenience

related information presented in Section 5.1 on page 37. Always consider and include clearance for the

microphone’s connector that must mate to the mic connector on the front panel of the head, and clearance

for the connectors/cables that must mate to the connectors on the rear panel of the head. The CH-721

control head can be mounted under or on top of a mounting surface (typically the vehicle’s dash) as space

permits using either the standard U-shaped mounting bracket or the optional mounting pedestal.

Figure 8-8: Standard U-Shaped Control Head Mounting Bracket (Kit Part Number KT-008608)

Figure 8-9: Optional Control Head Mounting Pedestal (Part Number MACDOS0012)

Mounting Bracket (Shown

positioned above control head)

Control Head Mounting

Pedestal MACDOS0012

(Pedestal can be attached to the

bottom of the head (as shown) or it

can be attached to the top of the

head.)

Bracket shown

attached to a CH-721

System model

control head (Head is

not included with

Mounting Bracket Kit)

Pedestal shown

attached to a CH-721

Scan model control

head (Head is not

included with Mounting

Pedestal.)

Socket-Head Cap (Allen) Screw, Lockwasher and Flat

Washer; 2 places each side (Included with kit)

#8-32 Pan-Head Screw; 4

places

(Included with

Mounting Pedestal)

For a “hanging” control head

installation, the pedestal can

be attached to the top of the

head via threaded holes in

the top of the head’s

case.

This figure shows the

pedestal attached to the

bottom of the control head via

threaded holes in the bottom

of the case.

MM-014763-001, Rev. G

8.3.2.2 Using the Standard U-Shaped Mounting Bracket

If the standard U-shaped mounting bracket will be used to mount the control head, the following

mounting procedure is recommended. As listed in Table 4-5 on page 29, this bracket is item 2 in the

Installation Kit.

1. Using the mounting bracket as a template, mark and drill mounting holes into the mounting surface as

required. The round and elliptical holes in the bracket’s vehicle mounting surface are symmetrical, so

forwards/backwards positioning is not important during this step. However, positioning is important

in the next step.

Before drilling holes and/or installing mounting screws, verify these operations will not

damage or interfere with any existing vehicle component (the fuel tank, a fuel line, the

transmission housing, existing vehicle wiring, etc.). Always check to see how far the

mounting screws will extend below the mounting surface prior to installation. Always

deburr drilled holes before installing screws.

2. Postion the bracket at the mounting surface so the two round holes in its two side “ears” are nearest to

the normal location of the operator (typically towards the rear of the vehicle) and the two slotted holes

are furthest from the normal location of the operator (typically towards the front of the vehicle).

3. Install and tighten the mounting screws. Screws for mounting the bracket to the mounting vehicle’s

surface are not included, as all installations differ. Self-threading screws are recommended. Use of

self-drilling screws may cause damage to some mounting surfaces, such as a plastic dash panel.

4. Verify the bracket is held firmly to the mounting surface. Firm mounting prevents unreasonable

vibration, which could damage the control head and/or cause its cable connections to loosen.

5. Slide the control head into the bracket, placing the two pegs protruding from its left and right sides

into the respective round holes in the bracket’s two side “ears.”

6. In each side “ear” of the mounting bracket, start a #8-32 hex-socket-head cap (Allen) head screw with

a lockwasher and a flat washer by inserting the screw through the slotted hole in the bracket and then

into the threaded hole in the side of the control head. This hardware is included with Mounting

Bracket Kit. The lockwasher should be adjacent to the screw head and the flat washer should be

adjacent to the bracket. Turn each screw clockwise as observed from the head of the screw.

7. The control head can be positioned at various angles for best display viewing at the normal position

of the operator. As necessary, turn it on the pegs to a good position and tighten both screws using an

⅛-inch hex key (Allen) wrench until the control head is held firmly in place. Do not over-tighten.

8.3.2.3 Using the Mounting Pedestal (Optional)

An optional Mounting Pedestal, part number MACDOS0012, may be purchased separately to replace the

standard U-shaped mounting bracket. This pedestal can be attached to the bottom of the control head as

shown in Figure 8-9, and then mounted to a mounting surface below the two. It can also be attached to the

top of the head and then mounted to a mounting surface above the two.

8.3.3 Control Head-to-Radio CAN Cable Connections

8.3.3.1 General Information

A remote-mount radio installation requires a CAN cable between every two “CAN devices” and CAN

terminators on each end of the CAN link. The M7300 mobile radio is considered a CAN device, and each

CH-721 control head in the installation is also considered a CAN device. Figure 8-10 illustrates CAN

CAUTION

MM-014763-001, Rev. G

cable and CAN terminator connections for a single control head installation. Figure 8-11 illustrates this

for a multi-head control head installation where, for example, one control head is located at the main

operator location and another is located near the rear of the vehicle. Because CAN devices do not have

internal terminators, the CAN link must be terminated at both ends via external CAN terminators, as

depicted in the following figures.

CAN Terminator CD-014027-001

(for radio end)

CH-721

Control

Head

CAN Cable CA-009562-nnn

(where nnn specifies cable length in feet)

CAN Terminator CD-014027-001

(for control head end)

CAN

3-Pin CAN Port

Connectors on

Rear of Radio

(2 places)

CAN

M7300

Mobile

Radio

CAN

3-Pin CAN Port

Connectors on Rear

of Control Head

(2 places)

For Available CAN Cable Lengths and Respective Part Numbers, see Table 4-8 on page 36.

Figure 8-10: CAN Link Connections for a Single Control Head Installation

CAN Cable CA-009562-nnn

(where nnn specifies cable length in feet)

NOTE: The M7300 mobile radio may be located in the middle of the CAN link. For a

2-head installation, two CAN cables would connect directly to the two CAN port

connectors on the rear of the radio, and each CH-721 control head would require a

CAN terminator. When the radio is in the middle of the CAN link, no CAN terminator

is required at the radio.

CAN Terminator CD-014027-001

(for radio end) CH-721

Control

Head #1

(e.g., at main

operator location)

CAN Cable CA-009562-nnn

(where nnn specifies cable length in feet)

CAN Terminator CD-014027-001

(for control head end)

CAN

3-Pin CAN Port

Connectors on

Rear of Radio

(2 places)

CAN

M7300

Mobile

Radio

CAN

3-Pin CAN Port

Connectors on Rear

of Control Head

(2 places, this head)

CAN

CH-721

Control

Head #2

(e.g., near rear of

vehicle)

For Available CAN Cable Lengths and Respective Part Numbers, see Table 4-8 on page 36.

Figure 8-11: Typical CAN Link Connections for a Multi-Control Head Installation

Both the radio and the control head have two CAN ports to support “daisy-chaining” of multiple control

heads or other CAN devices. Figure 5-3 on page 39 shows the radio’s two CAN port connectors, which

MM-014763-001, Rev. G

are located near the center of the radio’s rear panel. Figure 8-7 on page 72 shows the two CAN port

connectors on the control head’s rear panel.

8.3.3.2 Make CAN Link Terminations and Cable Connection

Follow this procedure for an installation which has only one control head. For a multi-control head

installation, refer to Figure 8-11 as necessary.

1. Mate a CAN Terminator (item 5 in Table 4-5 on page 29) with either one of the two smaller 3-pin

CAN port connectors on the rear panel of the CH-721. This action makes the CAN termination at the

control head end of the CAN link.

When mating any CAN connection (terminators and cables) to a rear panel connector,

visually align the ¾-moon-shaped keys of the connectors, and then gently push and

turn the outer locking ring of the plug (male) connector clockwise until it stops. A mild

click will be sensed to confirm proper mating. Without visual alignment as a guide, it

is possible with excessive force t

o mate the CAN connectors improperly. Damage to

the connector(s) may result. Therefore, visual alignment is recommended when mating

CAN connectors.

2. Obtain a CAN Cable and mate it to the other CAN port connector on the rear panel of the CH-721.

Typically, item 6 in Table 4-5 is utilized, a 30-foot CAN cable.

3. Route the cable through the vehicle’s interior wire/cable channeling to the radio. Remove interior

panels, door kick panels, etc., as necessary. Protect the cable from possible chafing as necessary.

4. Mate this other end of the cable to one of the two CAN port connectors on the rear panel of the radio.

5. Mate another CAN Terminator to the other CAN port connector on the rear panel of the radio. This

action makes the CAN termination at the radio-end of the CAN link.

6. Loop, tie and stow the excess cable as necessary, leaving a service loop at the back of the radio and at

the back of the control head.

8.3.4 Control Head Power Cable Installation

Plan the route of the control head’s DC Power Cable carefully. Do not route the cable where it will be

damaged by heat sources or by casual contact, and protect it from wire chafe per standard installation

methods. The following procedures are recommended:

8.3.4.1 Install DC Power Cable and Make Power and Ground Connections

1. Connect the control head’s DC Power Cable (item 4 in Table 4-5 on page 29) to the large 3-pin

connector at the rear of the head. Visually align the key and gently push and turn the outer locking

ring clockwise until it stops. A click will be sensed to confirm proper mating.

2. At the back of the control head, locate a nearby section of vehicle chassis ground and strip this area of

any paint or dirt to expose a bare metal surface.

3. Cut the black wire of the control head’s DC Power Cable to the required length, plus a service loop of

at least six (6) inches, then strip it and crimp a ⅜-inch ring terminal to it. Two ring terminals of this

type are included with the cable.

4. Drill a hole as necessary and attach this ring terminal to chassis ground. Use stainless-steel self-

locking hardware (i.e., machine screws with washers and locking nuts) or other appropriate hardware

to ensure a reliable terminal-to-metal contact. Tighten securely.

NOTE

MM-014763-001, Rev. G

5. At the back of the control head, tie and stow the cable as necessary.

6. For the positive 12-volt DC main power source connection, route the cable’s red wire to the location

of an unswitched 12-volt DC power source, typically near the vehicle’s battery. Remove interior

panels, door kick panels, etc. Protect the wire from possible chafing as necessary. This is the control

head’s main DC power source.

7. Obtain one of the yellow waterproof (HFB-type) fuse holders included with the control head’s DC

Power Cable.

8. Cut excess length from the red wire and splice the fuse holder into it, near the location of the

unswitched 12-volt DC power source connection point.

9. Using an appropriate electrical terminal, connect the red wire to the unswitched DC power source. A

⅜-inch ring terminal is included with the cable for this purpose, but another terminal type (not

supplied) may be used if required.

10. Obtain the 5-amp AGC-type fuse included with the cable, and install it into the fuse holder.

Do not share the control head’s fuse with any other device. Doing so can cause excess

current to flow through the fuse, causing it to blow unnecessarily.

The fuse for the control head’s red wire is rated at 5 amperes. The 3-amp fuse included

with the cable must not be used for fusing the control head’s main DC power. It fuses

the head’s white wire.

8.3.4.2 Connect DC Power Cable’s White Wire

A review of the information presented in Section 8.2.1 (page 65) may be beneficial at this time. As

required per the chosen power-up configuration, connect the white wire by following one of the three

procedures presented in the respective sub-section that follows.

8.3.4.2.1 Control Head and Radio Turn on with Vehicle’s Ignition Switch/Key

With this wiring configuration, the control head and radio automatically turn on and off with the vehicle’s

ignition switch/key. The white wire of the control head’s DC Power Cable is sometimes referred to as the

“white ignition switch wire” or the “ignition sense input wire.” In this configuration, the white wire

connects to a switched power source, typically identified as “Accessory” power, that switches on and off

with the vehicle’s ignition switch/key. When using this configuration, the CH-721 control head’s