Midland Radio 901090 VHF Mobile Transceiver User Manual STM Operation Manual

Midland Radio Corporation VHF Mobile Transceiver STM Operation Manual

Users Manual

Download:
Mirror Download [FCC.gov]
Document ID	1033988
Application ID	TOC8B/ZCoyaEWSYHRIccbA==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	123.58kB (1544796 bits)
Date Submitted	2008-11-21 00:00:00
Date Available	2008-11-24 00:00:00
Creation Date	2008-11-21 10:10:51
Producing Software	Acrobat Distiller 6.0.1 (Windows)
Document Lastmod	2008-11-21 10:11:49
Document Title	STM Operation Manual
Document Creator	Acrobat PDFMaker 6.0 for Word
Document Author:	rfrench

Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
Midland
Syn-Tech III P25
Mobile Radio
OPERATION MANUAL
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
PREFACE
Thank you for purchasing a Midland Syn-Tech III P25 Mobile Radio. Properly used, this
product will give you many years of reliable service. To get the most out of your
purchase, be sure to carefully read this manual and keep it on hand for later reference
when needed.
Before installing and using your radio, please read this
operation manual.
CUSTOMER ASSISTANCE
Should you encounter any problems with this product, or are unable to use its features,
please review this operation manual. If you require further assistance after reading this
manual, please contact your local dealer.
FOR WARRANTY, PRODUCT SERVICE AND ACCESSORY INFORMATION
Please contact your local dealer or distributor.
Do not attempt to service any internal parts yourself. This radio
should be opened by authorized personnel only.
Your radio is packed and labeled according to the commercial packaging standards.
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
IMPORTANT SAFETY INFORMATION
Before installing and using your radio, please read this
operation manual.
GENERAL PRECAUTIONS
Always use only Midland authorized accessories.
Unauthorized accessories have the risk of fire hazard, explosion,
personal injury or damage to the radio.
CAUTION
Changes or modifications to your radio may void its compliance with
government laws/rules and make it illegal to use.
Avoid using the radio at temperatures below -30ºC or above 60ºC.
Avoid storing the radio at temperatures below -40ºC or above 85ºC.
WARNINGS
Your Midland Syn-Tech III P25 Mobile Radio generates electromagnetic
RF energy when it is transmitting. To ensure that you and those around
you are not exposed to excessive amounts of that energy (beyond
recommended allowable limits for occupational use):
DO NOT operate your radio without a proper antenna. Otherwise, you
can seriously damage your radio.
DO NOT touch the antenna when you are transmitting.
NEVER connect the transceiver to any AC power source. This may cause
an electric shock or fire hazard and will damage your radio.
NEVER connect the transceiver to a DC power source either greater than
16 volts or with reverse polarity. Doing so will damage the transceiver.
DO NOT attempt to service any internal parts yourself. Please ask your
dealer for necessary service. This radio should be opened by authorized
personnel only.
Please read the installation and operating instructions carefully.
680-090-2041
Version 6.0eng
ii
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
FCC EXPOSURE STATEMENTS
Restricted to occupational use to satisfy FCC RF energy exposure limits.
The FCC has adopted a safety standard for human exposure to RF energy. Proper operation
of this radio under normal conditions results in user exposure to RF energy below the
Occupational Safety and Health Act and Federal Communication Commission limits.
Mandatory Safety Instructions to Installers and Users:
This radio is NOT approved for use by the general population in an uncontrolled environment.
This radio is restricted to occupational use and work related operations only. Radio operators
must have the knowledge to control their exposure conditions and the exposure conditions of
bystanders and/or passengers to satisfy the lower exposure limit allowed for General
Population.
To comply with FCC RF exposure limits, DO NOT operate the transmitter of this mobile radio
when a person outside the vehicle is within the minimum safe distance from the antenna:
STM1050B – 22 inches (56 centimeters)
STM1115B – 31 inches (79 centimeters)
STM4040A/B – 18 inches (45 centimeters)
SDT1090 – 31 inches (79 centimeters)
The antenna supplied by the manufacturer or radio dealer must be mounted at a location such
that during radio transmission, no person or persons can come closer than the above indicated
minimum safe distance to the antenna. To comply with current FCC RF exposure limits, the
antenna must be installed at or exceeding the minimum safe distance stated above, and in
accordance with the requirements of the antenna manufacturer or supplier.
Vehicle Installation Instructions:
The antenna used for this transmitter must be mounted on the center of the roof ONLY and
must be installed in vehicle having the following characteristics in order to prevent bystanders
and passengers from being exposed to levels exceeding the limits for General
Population/Uncontrolled Exposure environment:
1.
All passengers must be sitting under a solid metal roof.
2.
For rear deck trunk and roof top installations, the antenna must be located at least the
minimum safe distance away from rear-seat passengers and bystanders in order to
comply with the FCC RF exposure requirements.
DO NOT operate the radio without the proper antenna installed. Do not substitute any antenna
for the one supplied or recommended by the manufacturer or radio dealer. Antennas used for
this transmitter must not exceed an antenna gain of 3 dBi. By not following the antenna
recommendations you may be exposing person(s) to excess radio frequency radiation. You
may contact your radio dealer or the manufacturer for further instructions.
DO NOT transmit more than 50% of total radio use time (50% duty cycle). Transmitting for
more than 50% of the time can cause FCC RF exposure compliance requirements to be
exceeded. This radio is transmitting whenever the Transmit/Receive LED is red. Pressing the
PTT switch on the side of the microphone normally causes the radio to transmit.
The preceding information is provided to make you aware of RF exposure
and how to ensure that this radio is operated within FCC RF exposure
limits.
You, as the qualified end-user of this radio device must control the exposure conditions of
bystanders to ensure the minimum separation distance, stated above for satisfying FCC RF
exposure compliance, is maintained between the antenna and nearby persons. Transmit only
when all person(s) are at least the minimum distance from the properly installed, externally
mounted antenna.
680-090-2041
Version 6.0eng
iii
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
PATENT AND COPYRIGHT STATEMENTS
The AMBE+2™ 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. This voice coding
Technology is licensed solely for use within this Communications
Equipment. The user of this Technology is explicitly prohibited from
attempting to extract, remove, decompile, reverse engineer of
disassemble the Object Code, or in ay other way convert the Object
Code into a human readable form. U.S. Patents Nos. #5,870,405,
#5826,222, #5,754,974, #5,701,390, #5,715,365, #5,649.050,
#5,630,011, #5,581,656, #5,517,511, #5,491,772, #5,247,579,
#5,226,084, and #5,195,166
680-090-2041
Version 6.0eng
iv
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
PRODUCT FEATURES
Your Midland Syn-Tech III P25 Mobile Radio has the following features:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
136-174 MHz VHF and 380-470 MHz UHF bands
Mixed analog and digital mode operation
Easy installation
Low maintenance
Tri-color LCD display
Full keypad
High quality audio
User friendly interface
Extensive user prompts, alerts and warnings
Flexible accessory connections
Microprocessor controlled
DSP based audio
Flash memory
Synthesized frequency control
Extensive use of surface mount technology
PC controlled testing and alignment
CTCSS/CDCSS sub-audible signaling
2-Tone / 5-Tone analog signaling
Analog DTMF encoding
Conforms with TIA/EIA-603-A standard in Analog Mode
Conforms with TIA/EIA-102-CAAB standard in Digital Mode
Conforms with APCO25 EIA / TIA 102 standards
Conforms with MIL-STD-810E standards
Full technical specifications are given near the back of this manual.
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
ABBREVIATIONS AND ACRONYMS
ACK
AES
ALG
ANI
dBm
CIK
CDCSS
CTCSS
DCS
DES
DSP
GPS
ID
LCD
MSG
NAC
RF
RSSI
RX
SC
TCS
TBX
TX
WACN
Acknowledge
Advanced Encryption Standard
Algorithm
Automatic Number Identification
Decibel Milliwatt
Crypto Ignition Key Identity
Continuous Digital Coded Squelch System
Continuous Tone Controlled Squelch System
Digital Coded Squelch
Data Encryption Standard
Digital Signal Processing
Global Positioning System
Identity
Liquid Crystal Display
Message
Network Access Code
Radio Frequency
Received Signal Strength Indicator
Receive
Selective Call
Tone Coded Squelch
Telephone Branch Exchange
Transmit
Wide Area Communication Network
680-090-2041
Version 6.0eng
vi
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
TABLE OF CONTENTS
INTRODUCTION...................................................................................................... 1
1.1 Package Contents........................................................................................... 1
INSTALLATION....................................................................................................... 2
RADIO CONTROLS AND INDİCATORS................................................................. 3
3.1 Front and Rear Views ..................................................................................... 3
3.2 Button and Key Functions ............................................................................... 4
3.2.1 Emergency Call Button ....................................................................... 4
3.2.2 Alpha-Numeric keypad........................................................................ 4
3.2.3 Up/Down keys..................................................................................... 4
3.2.4 Left soft key (Menu) ............................................................................ 4
3.2.5 Right soft key (Index) .......................................................................... 4
3.2.6 Power Adjust (long press)/Mode Change (short press) key................ 5
3.2.7 Monitor (long press)/Call Wait Option (short press) key...................... 5
3.2.8 Keypad Lock (short press)/Emergency Reset (long press) key .......... 5
3.2.9 Scan key ............................................................................................. 5
3.2.10 Star key............................................................................................... 6
3.2.11 Pound key........................................................................................... 7
3.3 Display Icons................................................................................................... 9
3.4 Alpha-numeric Keypad Entry........................................................................... 9
OPERATION.......................................................................................................... 14
4.1 Basic Operation............................................................................................. 14
4.1.1 Turning the Radio On and Off........................................................... 14
4.1.2 Selecting Zones ................................................................................ 16
4.1.3 Selecting Channels ........................................................................... 17
4.1.4 Receiving Signals ............................................................................. 18
4.1.5 Transmitting to Other Radios ............................................................ 20
4.1.6 Selecting Transmit Power ................................................................. 24
4.1.7 Selecting Digital Talk Group ................Error! Bookmark not defined.
4.1.8 Selecting Talkaround Transmit Mode ..Error! Bookmark not defined.
4.1.9 Monitoring Channels ............................Error! Bookmark not defined.
4.1.10 Selecting Digital Call Wait Option ........Error! Bookmark not defined.
4.1.11 Scanning Channels..............................Error! Bookmark not defined.
4.1.12 Locking the Keypad .......................................................................... 34
4.1.13 Switching to the Home Zone and Channel......... Error! Bookmark not
defined.
4.2 Advanced Operation ..................................................................................... 36
4.2.1 Receiving Emergency Calls .............................................................. 36
4.2.2 Transmitting Emergency Calls .......................................................... 37
4.2.3 Receiving Digital Individual Calls .........Error! Bookmark not defined.
4.2.4 Transmitting Digital Individual Calls .....Error! Bookmark not defined.
4.2.5 Transmitting Digital Unaddressed CallsError! Bookmark not defined.
4.2.6 Transmitting Digital Telephone Interconnect Calls....Error! Bookmark
not defined.
680-090-2041
Version 6.0eng
vii
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.7 Receiving a Digital Call Alert................Error! Bookmark not defined.
4.2.8 Transmitting a Digital Call Alert............Error! Bookmark not defined.
4.2.9 Receiving and Sending Non-voice Messages.... Error! Bookmark not
defined.
4.2.10 Channel Programming ...................................................................... 51
4.3 Menu Operation ............................................................................................ 54
4.3.1 Analog Mode Menu Tree .................................................................. 54
4.3.2 Digital Mode Menu Tree.................................................................... 56
ACCESSORIES ..................................................................................................... 59
STORAGE AND CLEANING PRECAUTIONS ...................................................... 60
TROUBLESHOOTING........................................................................................... 61
SPECIFICATIONS ................................................................................................. 62
8.1 Receiver Technical Specifications................................................................. 64
8.2 Transmitter Technical Specifications............................................................. 65
WARRANTY STATEMENT ................................................................................... 66
680-090-2041
Version 6.0eng
viii
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
INTRODUCTION
1.1
Package Contents
The following items are in your Midland Syn-Tech III P25 Mobile Radio package:
Microphone
Transceiver Assembly
Microphone Hanger
680-090-2041
Version 6.0eng
Power Cord
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
Installation
Installation should be performed by an Authorized Midland LMR Dealer only.
Radio installation should be performed by qualified and trained personnel, familiar with
automotive electronics installation, and FCC RF exposure guidelines. This transceiver
should be installed in 12V negative ground vehicles only. Installation instructions are
available in the corresponding radio service manual.
Antenna selection, installation and positioning requires knowledge of RF radiation and
exposure conditions and should be performed by qualified personnel only. Please
consult your dealer or communications coordinator for more information.
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
Radio Controls and Indicators
3.1
Front and Rear Views
Mobile Radio Front View
F2
Key
F1
Key
Mobile Radio Rear View
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
3.2
Button and Key Functions
Below is a brief description of each button or key. For more details of each function
refer to the operation section of this manual. Many of the functions may be reassigned
or disabled by radio programming or unavailable because of the current analog/digital
mode selection. Many of the buttons have a short press, or press and release function,
and a long press, or press and hold function. The short press is function is performed if
the button is pressed for less than one second, and the long press function is
performed if the button is pressed for more than one second.
3.2.1
Emergency Call Button
The emergency button initiates emergency mode. The emergency function is only
available in digital mode. The emergency key must be pressed for a programmed
activation time. Once emergency mode is activated, the radio will switch to the
emergency channel and initiate five SBC emergency transmissions. The emergency bit
will be set on all user initiated digital transmissions until the emergency is cleared by a
long press of the keypad lock key or the radio is turned off.
3.2.2
Alpha-Numeric keypad
The alpha-numeric keypad provides direct channel select from standby mode. The
alpha-numeric keypad also generates DTMF tones while PTT is pressed on analog
channels and enters alpha-numeric characters within other functions.
3.2.3
Up/Down keys
The up/down keys provide up/down channel select from standby mode. The up/down
keys are generally used to scroll through lists within other functions.
3.2.4
Left soft key (Menu)
The left soft key enters the menus from standby mode. The left soft key is generally
used as SELECT or OK within other functions.
3.2.5
Right soft key (Index)
The right soft key accesses the index (20 unit ID address book) from standby mode.
Once the appropriate ID is displayed, press SELECT to edit the entry or the
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
(scan) to initiate an individual call to the displayed unit. Up to six of the first entries may
be predefined in radio programming and may not be editable. Individual call initiation
may be disabled by radio programming.
The right soft key is generally used as EXIT within other functions. The right soft key is
used a nuisance channel delete during scan.
3.2.6
F1 Button (Power Adjust/Mode Change)
A long press of this key changes the transmit power level. The selections are high,
medium and low power. A default power level is set each time the channel is selected.
A short press of this key changes the transmit mode on multi-mode and digital
channels. The selections may include analog, digital clear, and digital encrypted
transmit modes. A default mode is set each time the channel is selected.
3.2.7
F2 Button (Monitor/Call Wait Option)
A long press of this key turns monitor on. The function of the monitor button depends
on digital/analog/mixed mode and the radio programming. If monitor is enabled the
monitor function may disable the squelch on analog and mixed channels. The monitor
function may allow all NACs and talk groups to be received on digital and mixed
channels. While monitor is on, a long press of the Monitor/Call Wait key turns monitor
off.
A short press of this key turns the call wait option on. The call wait option is available
only on digital channels. When the call wait option is on, group calls will be muted. If an
individual call (addressed to the radio) or all call is received, the call will be heard and
the call wait option will be canceled. While call wait is on, a short press of the
Monitor/Call Wait key turns call wait off.
3.2.8
Keypad Lock (short press)/Emergency Reset (long press) key
A short press of this key initiates keypad lock. While the keypad is locked, a short press
of the Keypad Lock/Emergency Reset key will initiate keypad unlock mode.
While the emergency function is active, a long press of the Keypad Lock/Emergency
Reset key will cancel the emergency mode.
3.2.9
Scan key
A short press of this key turns on scan. All channels in the selected zone’s scan list will
be scanned. If PTT is pressed while scanning, the radio will transmit on the selected
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
channel. If PTT is pressed while scan is paused on a channel the radio will transmit on
the pause channel. If MENU is pressed scan is canceled. While scan is on, a short
press of the Scan key cancels scan.
The Scan key is also used as a clear (long press) or backspace (short press) key
during alpha-numeric keypad entry.
3.2.10
Star key
The ∗ key is a multi-function key allowing selection of several functions with successive
presses. The available functions depend on analog/digital mode. In digital mode the
talk group select, all call, talkaround, home and command zone functions may be
available. In analog mode the talkaround, home and command zone functions may be
available.
3.2.10.1
Switching Talk Group
The first press of the ∗ key may prompt “TALKGROUP:” to enter a new talk group. This
function is only available in digital mode and the entered talk group must be in the
selected zone’s talk group list.
3.2.10.2
Entering/Exiting Unaddressed Voice Call Mode
Successive presses of the ∗ key may prompt “ENTER TO ALL CODE MODE?” or
“EXIT ALL CODE MODE?” to enter/exit all call mode. This function is only available in
digital mode. All call mode implements a call to all talk groups using the channel.
Transmitting all calls may be disabled by radio programming.
3.2.10.3
Entering/Exiting Talkaround Mode
Successive presses of the ∗ key may prompt “ENTER TO TALKAROUND MODE?” or
“EXIT TALKAROUND MODE?” to enter/exit talkaround mode. This option is not
available on simplex (direct) channels. The talkaround function sets the transmitter to
the programmed receive frequency/CTCSS/DCS/NAC.
3.2.10.4
Switching to Home Zone and Channel
Successive presses of the ∗ key may prompt “GO TO HOME?” to switch to the home
zone and channel.
3.2.10.5
Adding to Command Zone
Successive presses of the ∗ key may prompt “ADD TO COMMAND ZONE?” to add the
current channel to the command zone.
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
3.2.11
Pound key
The # key is a multi-function key allowing selection of several functions with successive
presses. The available functions depend on analog/digital mode. In digital mode the
zone select, status set, individual call, telephone call and call alert functions may be
available. In analog mode the zone select, selective call and two tone call functions
may be available.
3.2.11.1
Switching Zones
The first press of the # key may prompt “ZONE NO:” to switch zones. The up/down
keys will scroll through the available zones. Or, the zone number may be entered using
the numeric keypad. The left soft key selects the displayed zone and the right soft key
exits without changing zones.
3.2.11.2
Setting Current Status
Successive presses of the # key may prompt “CUR. STATUS:” to set the current status.
This function is only available in digital mode. The current status is used when sending
status to other users, or when other users request the current status. The current status
may also be set under MENU | STATUS | PRESENT STATUS.
Sending current status and requesting status from other users may be
disabled in radio programming. You may still set current status and
receive status messages from other users.
3.2.11.3
Entering Individual Call Mode
Successive presses of the # key may prompt “INDIVIDUAL:” to enter individual call
mode. This function is only available in digital mode. A unit ID may be entered or
selected from the index list. Once a unit ID is selected, the radio will enter individual call
mode. The radio will transmit unit to unit calls to the entered unit ID each time PTT is
pressed. If PTT is not pressed and no signal is received the individual call mode will
time out after ten seconds.
Individual calling may be disabled by radio programming.
3.2.11.4
Initiating a Telephone Interconnect Request
Successive presses of the # key may prompt “DIAL TELEPHONE NUMBER” to initiate
a telephone call. This function is only available in digital mode. This function initiates a
telephone interconnect request on the RF subsystem.
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
Telephone dialing may be disabled or the number of dial digits may be
limited by radio programming.
3.2.11.5
Sending a Call Alert
Successive presses of the # key may prompt “CALL ALERT:” to initiate a call alert
transmission. This function is only available in digital mode.
Call alert transmissions may be disabled by radio programming.
3.2.11.6
Transmitting a Selective Call
Successive presses of the # key may prompt “SELECTIVE CALL” to transmit a
selective call. This function is only available in analog mode.
Selective calling may be disabled by radio programming.
3.2.11.7
Transmitting a 2-Tone Call
Successive presses of the # key may prompt “TWO-TONE CALL” to transmit a 2-tone
call. This function is only available in analog mode.
Two-tone calling may be disabled by radio programming.
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
3.3
Programmable Key Function Assignments
The preceding section detailed the default functions for each key. However, many of
the keys may be programmed to perform other functions. You may find it convenient to
record the new functions of the programmable keys below. Please keep in mind, some
functions may not be available because of the analog/digital mode selection.
alpha-numeric keypad:
1 key long press:
2 key long press:
3 key long press:
4 key long press:
5 key long press:
6 key long press:
7 key long press:
8 key long press:
9 key long press:
0 key long press:
∗ key list:
1.
2.
3.
4.
5.
6.
∗ key long press:
# key list:
1.
2.
3.
4.
5.
6.
# key long press:
up/down keys:
right soft key:
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
F1 key short press:
F1 key long press:
F2 key short press:
F2 key long press:
scan key:
680-090-2041
Version 6.0eng
10
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
3.4
Alpha-numeric Keypad Entry
The keypad is used to enter alpha-numeric characters within many functions. When the
radio is in alpha-numeric mode, successive presses (less than one second apart) of the
keys will step through the available characters. Pausing for more than a second will
accept the displayed character and move the cursor right one space. A short press of
the
(Scan/Clear) key deletes the previous character and moves the cursor left
one space. A long press of the
mode.
(Scan/Clear) key returns the radio to standby
Table 3.1: Alpha-numeric Keypad Entry
Number of Key Presses
Keys
Space
Ç
ç
Ğ
ğ
Ö
ö
Ü
ü
”
’
€
680-090-2041
Version 6.0eng
11
http://www.midlandradio.com
10
11
İ
Ş
ş
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
3.5
Display Icons
Table 3.2: Display Icons
This Analog Receive icon appears when an analog signal is received.
This Analog CTCSS Receive icon appears when an analog signal encoded with
the correct CTCSS is received.
This Analog CDCSS Receive icon appears when an analog signal encoded with
the correct CDCSS is received.
This Digital Receive icon appears when a clear (unencrypted) digital signal is
received.
This Digital DES Receive icon appears when an encrypted digital signal using
the DES encryption algorithm is received.
This Digital AES Receive icon appears when an encrypted digital signal using
the AES encryption algorithm is received.
This Analog Transmit icon appears when the radio is set to transmit in analog
mode.
This Analog CTCSS Transmit icon appears when the radio is set to transmit in
analog mode with CTCSS.
This Analog CDCSS Transmit icon appears when the radio is set to transmit in
analog mode with CDCSS.
This Analog Mixed Reply Transmit icon appears after the radio receives an
analog transmission on a mixed mode channel (temporary switch to analog TX).
This Digital Transmit icon appears when the radio is set to transmit in clear
digital mode.
This Digital Mixed Reply Transmit icon appears after the radio receives a digital
transmission on a mixed mode channel (temporary switch to digital TX).
This Digital DES Transmit icon appears when the radio is set to transmit in
digital encrypted mode using the DES encryption algorithm.
This Digital AES Transmit icon appears when the radio is set to transmit in
digital encrypted mode using the AES encryption algorithm.
680-090-2041
Version 6.0eng
12
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
This Digital Talkaround Receive icon appears when a clear digital signal is
received in direct or talkaround mode.
This Analog Talkaround Transmit icon appears when the radio is set to transmit
in analog talkaround mode.
This Digital Talkaround Transmit icon appears when the radio is set to transmit
in digital talkaround mode.
This Received Signal Level icon appears when a signal is being received. The
number of bars indicates the relative signal strength.
This SMS icon appears after an SMS is received and remains on until the
message is read.
This High Power icon appears when high transmit power level is selected.
This Medium Power icon appears when medium transmit power level is
selected.
This Low Power icon appears when low transmit power level is selected.
This Tone Squelch icon appears when channel is set to receive a CTCSS or
CDCSS signal.
This Call Wait icon appears when call wait mode is selected.
This Alert Tones Off icon appears when alert tones are disabled or silence mode
is on.
This Keypad Lock icon appears when keypad lock is selected.
This Scan icon appears when scan is selected.
This Low Battery icon appears when a low voltage condition is detected.
680-090-2041
Version 6.0eng
13
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1
OPERATION
Basic Operation
Despite the radio’s advanced feature set, the basic receive and transmit operations can
still be quite simple. The radio is capable of distinguishing between analog and digital
signals, and the channel may be configured to receive both signal types with no user
intervention. The radio channel may also be configured to allow users to transmit
analog signals, digital signals, or choose the appropriate transmit mode. The radio may
also automatically switch the transmit mode after receiving a different mode signal. The
radio will switch back to the selected mode after a time period.
4.1.1
Turning the Radio On and Off
Figure 4.1 – On/Off
Press and release the On/Off Volume Knob to turn
the mobile radio on. Press and hold the On/Off
Volume Knob at least two seconds to turn the mobile
radio off. Rotate the knob clockwise to increase the
speaker volume. Rotate the knob counter-clockwise
to decrease the speaker volume.
While the radio is performing power-on self-tests, it
will display the greeting message and the current
zone selection. The radio will power-on to the last
selected channel.
Figure 4.2 – Increase volume
Enter 6-8
digit
password
Figure 4.3 – Decrease volume
If a power-on password has been set,
the radio will prompt for power-on
password entry when it is turned on.
Use the numeric keypad to enter the
correct 6-8 digit password, then press
the left soft key (OK).
Press OK
to
continue
Figure 4.4 – Power-on password entry
680-090-2041
Version 6.0eng
14
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
If a user password has been set, the
radio will prompt for user password
entry when it is turned on. Use the
numeric keypad to enter the correct 5
digit user password, then press the
left soft key (OK).
Enter 5
digit
password
Press OK
to
continue
Figure 4.4 – User password entry
The power-on and user passwords have similar functions. The power-on
password is enabled and changed by the radio programmer. The user
password is enabled and changed by the radio user.
680-090-2041
Version 6.0eng
15
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.2
Selecting Zones
The radio channels may be organized
into zones or channel groupings to
sort and organize the channels. To
select a new zone, press the zone
entry key (default:
pound
key), then use the up/down keys to
scroll through the available zones.
The new zone number may also be
entered using the keypad. Press the
left soft key (OK) to switch to the new
zone. The first channel in the new
zone will be displayed.
Not sure which zone is currently
selected? Press the zone entry key to
display the current zone selection.
Press exit to return to standby mode.
Press
zone
entry key
Use
up/down to
select new
zonel
Press OK
to select
new zone
A new zone may also be selected
using zone up/zone down keys.
A new zone may also be selected
using MENU | CHANNEL
PARAMETERS | ZONES.
680-090-2041
Version 6.0eng
Figure 4.5 – Zone selection
16
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.3
Selecting Channels
The
(up/down)
keys may be used to increment or
decrement the channel selection.
The
(alpha-numeric
keypad) may be used to enter a
channel number for direct
channel selection.
Enter channel
number
Press OK
Figure 4.7 – Direct channel number entry
680-090-2041
Version 6.0eng
17
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.4
Receiving Signals
The radio channel may be configured to receive only analog transmissions, only digital
transmissions or both. If the channel is programmed to receive both analog and digital
signals (mixed mode receive), the radio will automatically switch to the appropriate
mode when receiving the signal.
4.1.4.1
Analog Reception
An analog signal exceeding the squelch
threshold is indicated by a green
Transmit/Receive LED and the Analog Receive
). On channels programmed for tone
icon (
squelch, the decoded tone sqelch signal is
indicated by the CTCSS Receive icon (
) or
). A relative value of
CDCSS Receive icon (
signal strength is also indicated by the Received
Signal Level icon (
). If the channel’s
analog reception parameters are met, the
received audio is heard over the speaker.
Figure 4.8 – Analog receive display
680-090-2041
Version 6.0eng
18
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.4.2
Digital Reception
A decoded digital signal is indicated by a green
Transmit/Receive LED and the Digital Receive
). A relative value of signal strength is
icon (
also indicated by the Receive Signal Strength
icon (
). If the channel’s digital reception
parameters are met, the received audio is heard
over the speaker.
4.1.4.3
Encrypted Digital Reception
A decoded encrypted digital signal is indicated
by a green Transmit/Receive LED and the
Digital DES Receive icon (
) or Digital AES
Figure 4.9 – Digital receive display
Receive icon (
). A relative value of
signal strength is also indicated by the
Receive Signal Strength icon (
). If the
channel’s digital reception parameters are
met and the encryption keys are matched,
the received audio is heard over the
speaker.
More information is displayed about received
digital signals. While receiving, the talk
group ID is displayed in decimal format on
the third line (
), and the source ID is
displayed in decimal format on the fourth line
Figure 4.10 – Encrypted receive display
). If the received source ID is
in the radio’s address book, the name associated with the source ID will be displayed
). If the received signal has status bits set to 0, the direct or Digital
), otherwise the Digital
Talkaround icon is displayed to the left of the source ID (
). To the right of the talk group ID is a single letter
Receive icon is displayed (
indicating the emergency bit is normal ( ) or emergency ( ). To the right of the source
ID is a single letter indicating the link control format is a group call ( ) or individual call
( ).
680-090-2041
Version 6.0eng
19
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.5
Transmitting to Other Radios
The radio channel may be configured
to transmit in analog mode, digital
mode or encrypted mode.
Your radio may allow you to select
the transmit mode with the TX Mode
Change key (default:
short
press F1 key). A default transmit
mode is chosen by radio
programming. The default transmit
mode is used each time the channel
is selected or radio is turned on. The
other available modes may be
chosen by successive presses of the
TX Mode Change key.
Press Mode
Change key
to select next
TX mode
Press Mode
Change key
to select next
TX Mode
Your radio may automatically switch
the transmit mode to the last
received mode. This mixed reply
transmit mode will be display the
Analog Mixed Reply Transmit icon
) or Digital Mixed Reply Transmit
). When a reply timer expires
icon (
the radio will switch back to the
previously selected mode.
Figure 4.11 – Transmit mode selection
Figure 4.12 – Mixed reply display
680-090-2041
Version 6.0eng
20
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.5.1
1.
2.
3.
4.
5.
Analog Transmissions
Press the TX Mode Change key
repeatedly until analog transmit
mode is displayed. Depending on
channel programming, the analog
transmit mode may display the
Analog Transmit icon (
), Analog
) or
CTCSS Transmit icon (
Analog CDCSS Transmit icon
).
Ensure that the channel is clear.
Press and hold the push to talk key
(PTT). The Transmit/Receive LED
will light red while transmitting.
Hold the microphone approximately
two inches from your mouth and
speak in a clear, normal voice.
Keep the PTT switch pressed until
you have finished speaking.
Release the PTT switch to return to
standby mode and receive any
reply.
680-090-2041
Version 6.0eng
Figure 4.13 – Analog transmit displays
21
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.5.2
1.
2.
3.
4.
5.
6.
Press the TX Mode Change key
repeatedly until the Digital Transmit
) is displayed.
icon (
Check that the correct talk group ID
is selected.
Ensure that the channel is clear.
Press and hold the push to talk key
Figure 4.14 – Digital transmit display
(PTT). The Transmit/Receive LED
will light red while transmitting.
Hold the microphone approximately two inches from your mouth and speak in a
clear, normal voice. Keep the PTT switch pressed until you have finished speaking.
Release the PTT switch to return to standby mode and receive any reply.
4.1.5.3
1.
Digital Transmissions
Encrypted Transmissions
Press the TX Mode Change key
repeatedly until encrypted transmit
mode is displayed. Depending on
channel programming, the
encrypted transmit mode may
display the Digital DES Transmit
icon (
2.
3.
4.
5.
7.
) or Digital AES Transmit
icon (
).
Check that the correct talk group ID
is selected.
Ensure that the channel is clear.
Press and hold the push to talk key
(PTT). The Transmit/Receive LED
Figure 4.15 – Encrypted transmit display
will light red while transmitting.
Hold the microphone approximately two inches from your mouth and speak in a
clear, normal voice. Keep the PTT switch pressed until you have finished speaking.
Release the PTT switch to return to standby mode and receive any reply.
680-090-2041
Version 6.0eng
22
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.5.4
Time Out Time
A Time Out Time may be programmed to limit the
length of continuous transmissions. If the Time Out
Time is exceeded, release PTT and wait for the
channel to be available again. The Time Out Time
may be set from 15-240 seconds in radio
programming.
4.1.5.5
Figure 4.16 – Transmit time out
Busy Channel Lockout
The radio may be programmed to inhibit
transmission while the channel is busy. Wait
until the channel is clear before transmitting.
Figure 4.17 – Busy channel lockout
680-090-2041
Version 6.0eng
23
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.6
Selecting Transmit Power
To minimize interference with others,
use the lowest transmit power that
will provide adequate range. The
radio has three transmit power levels
which are selected with successive
long presses of the Power Change
key (Default:
long press F1
key). The actual transmit power
associated with each level is set in
radio programming.
Press
Power
Change key
to select
mid power
Press
Power
Change key
to select
low power
Press
Power
Change key
to select
high power
Figure 4.18 – Transmit power selection
680-090-2041
Version 6.0eng
24
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.7
Selecting Digital Talk Group
The default talk group may be set
for the channel in radio
programming. When the channel
is selected, the default talk group
is used. If a default talk group was
not set for the channel, the radio
will use the talk group last
selected and displayed.
Each zone in the radio may have a
list of allowed talk groups or may
have all valid talk groups assigned
to it. When the radio is in digital
transmit mode, you may select a
new talk group from this list by
pressing the Talk Group Entry key
Press
Group Entry
key
Enter new
talk group
then press
OK
(default:
star key) until
“TALKGROUP:” is displayed.
Then use the alpha-numeric
Figure 4.19 – Group Entry talk group selection
keypad to enter the new talk
group. Then press the left soft key (OK) to use the entered talk group. If the entered
talk group is not in the zone’s talk group list, the radio will not allow the talk group
selection.
If a talk group list has been created for the zone, a new talk group may also be selected
using the Group Up/Group Down keys. The zone’s talk group list may be viewed and a
new talk group may also be selected from MENU | CHANNEL PARAMETERS |
TALKGROUPS.
The radio has a talk group scan feature which is on by default. When a signal is
received from any talkgroup in the list, the radio will switch to the received talkgroup for
the duration of the receive signal and then start the scan delay timer. You may reply
using the received talk group during the scan delay time, by pressing PTT. After the
scan delay time expires the radio will switch back to the selected talk group. Use MENU
| CHANNEL PARAMETERS | TALKGROUP SCAN to turn talk group scan on/off.
680-090-2041
Version 6.0eng
25
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.8
Selecting Talkaround Transmit Mode
On channels programmed for
repeater operation, the radio may be
set to talkaround mode. Talkaround
mode allows direct portable to
portable communication without
accessing the repeater. Press the
Talkaround Mode key (default:
star key) until “ENTER TO
TALKAROUND MODE?” is
displayed then press the left soft key
(YES). The radio will switch it’s
transmit frequency parameters to
those programmed for receive. The
Analog Talkaround Transmit icon
) or Digital Talkaround Transmit
icon (
) is displayed while
talkaround mode is active
Press
Talkaround
Mode key.
Select YES
Figure 4.20 – Entering talkaround mode
The radio will remain in talkaround
mode until it is canceled, the channel is changed, the radio is turned off, or a new zone
is selected. To cancel talkaround
mode, press the Talkaround Mode
key until “EXIT TALKAROUND
MODE?” is displayed, then press the
Press
left soft key (YES).
Talkaround
Mode key
Select YES
Figure 4.21 – Exiting talkaround mode
680-090-2041
Version 6.0eng
26
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.9
Monitoring Channels
Press the Monitor Change key
(default:
long press F2
button) to turn the monitor function on.
The function of the monitor button
depends on radio programming. If
Monitor Channel is enabled, the
monitor function will disable the
squelch on analog and mixed
channels.
Press
Monitor key
to turn
monitor on
Squelch is
opened
Press
Monitor key
to turn
monitor off
Figure 4.22 – Monitoring channel
680-090-2041
Version 6.0eng
27
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
If Monitor All NACs &
T.Groups is enabled, the
monitor function allows all
NACs and talk groups to be
received on digital and mixed
channels. While monitor is
on, a press the Monitor
Change key to turn monitor
back off.
Press
Monitor key
to turn on
monitor
Monitors all
talk groups
and NACs
Press
Monitor key
to turn off
monitor
Figure 4.23 – Monitoring all talk groups and NACs
680-090-2041
Version 6.0eng
28
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.10
Selecting Call Wait Option
Press the Individual Call Wait key
(default:
short press F2
button) to turn the call wait option on.
The Call Wait icon ( ) is displayed
while call wait mode is on. While the
call wait option is on, all normal group
calls will be muted while the radio
waits for an individual. On digital
channels, if an individual call (with
matching destination ID) or all call is
received, the call will be heard and
the call wait option will be canceled.
On analog channels, if a matching 2tone or 5-tone call is received the call
will be heard and the call wait option
will be canceled. While call wait is on,
press of the Individual Call Wait key to
turn call wait off.
Press Call
Wait key to
turn on call
wait
Radio will
mute
normal
group calls
Press Call
Wait key to
turn off call
wait
Figure 4.24 – Selecting call wait option
680-090-2041
Version 6.0eng
29
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.11
Scanning Channels
Press the Busy Scan, Priority Scan or Selected Priority Scan key (default:
short press scan key) to turn on scan. The Scan icon ( ) is displayed while scan is
active. All channels in the selected zone’s scan list will be scanned. While scan is on,
press the scan key to cancel scan. If MENU is pressed, scan is canceled.
4.1.11.1
Busy Scan
Busy scan will scan all channels in the
selected zone’s scan list. Any priority channel
assignments will be ignored.
4.1.11.2
Priority Scan
Priority scan will scan all channels in the
selected zone’s scan list. The assigned high
and low priority channels will be used. While
scan is paused on a non-priority channel, the
priority channels will be checked for activity.
4.1.11.3
Figure 4.25 – Busy scan display
Selected Priority Scan
Selected priority scan will scan all channels in
the selected zone’s scan list. The selected
channel will be assigned and used as the high
priority channel. If a low priority channel has
been assigned it will also be used. While scan
is paused on a non-priority channel,
the priority channels will be checked
for activity.
Figure 4.25 – Priority scan display
Figure 4.25 – Selected priority scan display
680-090-2041
Version 6.0eng
30
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.11.4
Transmitting While Scanning
If PTT is pressed while scanning the
radio will transmit on the selected
channel.
Press Scan
key to turn
on scan
Press PTT
to transmit
on the
selected
channel
Release
PTT, scan
resumes
after scan
delay
Figure 4.26 – Pressing PTT while scanning
680-090-2041
Version 6.0eng
31
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
If PTT is pressed while scan is
paused on a channel the radio
will transmit on the pause
channel.
Radio
receives
signal while
scan is on
Press PTT
to transmit
on pause
channel
Release
PTT, scan
resumes
after scan
delay
Figure 4.27 – Pressing PTT while scan is paused
680-090-2041
Version 6.0eng
32
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.11.5
Editing the Scan List
You can add and delete channels
from the selected zone’s scan list
using MENU | CHANNEL
PARAMETERS | CHANNEL SCAN. If
a “+” is displayed above the channel
name, the channel is currently in the
scan list. If “-“ is displayed above the
channel name, the channel is not in
the scan list. A “1” or “2” indicate
priority channel selections.
Press
MENU
Use
up/down to
select
Channel
Parameters
Use
up/down to
select
Channel
Scan
Select
channel to
add or
remove
Figure 4.28 – Editing the zone’s scan list
680-090-2041
Version 6.0eng
33
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.12
Locking the Keypad
Press the
(Keypad Lock)
key to lock the alpha-numeric,
up/down, scan, and left and right
soft keys. While the keypad is
locked, press the
(Keypad Lock) key, then press the
left soft key (UNLOCK) to unlock
the keypad.
Press
Keypad
Lock to lock
the keypad
Press Keypad
Lock then press
UNLOCK to
unlock the
keypad
Figure 4.29 – Locking the keypad
Keypad lock may be disabled in radio programming. The F1 and F2 side
buttons may be programmed to lock with the keypad.
680-090-2041
Version 6.0eng
34
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.1.13
Switching to the Home Zone and Channel
Press the Home Zone key
(default:
star key) until
“Go to Home?” is displayed.
Then press the left soft key (OK)
to switch to the home zone and
channel. If the channel switch is
not in the sixteenth position, the
radio will switch to the home
zone and the channel selected by
the switch. The home zone and
channel are set in radio
programming.
4.1.14
Press
Home Zone
key until
“Go To
Home?”
Press OK to
switch to
home zone
and
channel
Initiating Silence Mode
Press the Silence Mode key to
turn on Silence Mode. Silence
mode turns off the transmit/busy
LED, display backlighting and
radio beeps. Press the Silence
Mode key again to turn silence
mode off.
Figure 4.30 – Switching to home zone & channel
Press
Silence
Mode key to
turn on
Press
Silence
Mode key
againg to
turn off
Figure 4.31 – Turning Silence Mode on/off
680-090-2041
Version 6.0eng
35
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2
Advanced Operation
Some of the radio’s more advanced operations are listed in this section. Most of these
advanced features may be disabled in radio programming. In this case, the feature
being described may not appear, or may have a reduced, view only function.
4.2.1
Receiving Emergency Calls
When an emergency alert transmission is
received, the radio sounds and displays the
emergency alert and displays the unit ID of
the sender. Pressing any key will silence the
alert tone. Press the right soft key to exit the
emergency display mode. When a call with
the emergency bit set is received the radio
displays the call with emergency bit indicator
( ).
Figure 4.32 – Emergency alert display
Figure 4.33 – Emergency call display
680-090-2041
Version 6.0eng
36
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.2
Transmitting Emergency Calls
Press and hold the
(emergency) key to activate the
emergency function. Once
emergency mode is activated, the
radio switches to the emergency
channel set for the selected zone in
radio programming or initiates the
emergency transmissions on the
current channel.
The radio will automatically transmit
five emergency alert transmissions
and set the emergency bit on all
user initiated transmissions until the
emergency is cleared. The
emergency is cleared by a long
press of the
(Keypad
Lock) key or by turning the radio
off.
Press and
hold
Emergency
key
Hold
Keypad
Lock for 2
seconds to
clear
Radio
reverts to
previous
channel
Figure 4.34 – Transmitting in emergency mode
Emergency calls may be disabled in radio programming. When
emergency calls are disabled the emergency button will not function.
680-090-2041
Version 6.0eng
37
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.3
Receiving Digital Individual Calls
A digital individual call is addressed to
a single unit ID rather than a talk
group. When this radio receives an
individual call from another radio it will
automatically switch to individual call
mode. The radio will use the received
source ID as the destination ID in
individual call replies.
Press PTT
to reply to
individual
call
Individual
call time out
(after ten
seconds)
Figure 4.35 – Receiving individual call
If no signal is received and PTT is not pressed for ten seconds, individual
call mode will time out.
680-090-2041
Version 6.0eng
38
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.4
Transmitting Digital Individual Calls
A digital individual call is addressed to
a single unit ID rather than a talk
group. To transmit an individual call,
press the Individual Entry key
(default:
pound key) until
“INDIVIDUAL:” is displayed. Enter the
unit ID or press the left soft key
(INDEX) to select from the address
book. Press the left soft key (OK) to
enter individual call mode.
Then press PTT to initiate an
individual call to the selected unit ID.
An individual call may also be initiated
directly from the index by selecting
the index entry, then pressing the
(scan key).
Press # key
until
“Individual:”
is displayed
Enter unit
ID or press
INDEX.
Press OK to
enter
individual
call mode
Figure 4.36 – Entering individual call mode
If no signal is received and PTT is not pressed for ten seconds,
individual call mode will time out.
Individual call initiation may be disabled in radio programming.
680-090-2041
Version 6.0eng
39
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.5
Transmitting Digital All Calls
A digital all call is similar to a
group call, except no talk group is
specified (reserved talk group
$FFFF is used). Any digital radio
with matching receive frequency
and NAC should receive the all
call.
To enter all call mode, press the
All Call key (default:
star
key) until “ENTER TO ALL CODE
MODE?” is displayed, then press
the left soft key (YES). The radio
will now transmit with reserved talk
group $FFFF.
Press All Call
key until
“Enter to
Unaddressed
Voice Call?”
Press YES
To exit all call mode, press the All
Call key until “EXIT ALL CODE
MODE?” is displayed then press
the left soft key (YES).
All call initiation may
be disabled in radio
programming.
Figure 4.37 – Entering all call mode
Press All Call
key until “Exit
Unaddressed
Voice Call?”
Press YES
Figure 4.38 – Exiting all call mode
680-090-2041
Version 6.0eng
40
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.6
Transmitting Digital DTMF/Telephone Dialing
Press the Telephone Entry key
(default:
pound key) until
“DIAL TELEPHONE NUMBER” is
displayed. Press the left soft key
(OK) then enter the telephone
dialing digits. Press the left soft
key (CALL). The radio will send a
telephone dialing request.
Press the
Telephone
Entry key
Press OK,
enter dial
digits,then
press CALL
Figure 4.39 – Initiating DTMF/telephone dialing
Telephone interconnect calls may be disabled or the number of dial digits
may be limited in radio programming.
680-090-2041
Version 6.0eng
41
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.7
Receiving a Digital Call Alert
A call alert is normally used as a low priority
request to return the call when it’s more
convenient. When a call alert is received the
radio will display the unit ID of the initiator.
4.2.8
Transmitting a Digital Call Alert
Figure 4.40 – Receiving a call alert
Press the Call Alert key (default:
pound key) until “CALL
ALERT:” is displayed. Enter the
destination unit ID or press the left
soft key for INDEX. Press the left
soft key (SEND) to send the call
alert. The radio will send up to four
call alert requests.
Call alert
transmissions may
be disabled in radio
programming.
Press Call
Alert key
Enter unit ID
or press
INDEX
Press SEND
If unit ID is does
not answer
Figure 4.41 – Initiating a call alert request
680-090-2041
Version 6.0eng
42
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.9
Receiving and Sending Non-voice Messages
The radio can receive and send three types of non-voice messages when operating in
digital mode.
SMS messages are free text messages sent from one radio to another. With SMS
messages, the message (up to 160 characters maximum) is entered using the alphanumeric keypad and transmitted to the other radio.
Predefined messages are common messages among all radios. A predefined message
is selected from the predefined message list (of 20 messages of maximum 20
characters) and the message pointer is transmitted to the other radio.
Status messages are common status settings among all radios. A current status is
selected by the radio user (of 30 status settings of maximum 20 characters), and may
be sent to another radio. Your current status may also be queried by another user.
Both status and predefined messages rely on the receiving radio’s
database to determine the message displayed. The message characters
are not sent, instead only a pointer of which message should be
displayed is sent. For proper status and predefined messaging
operation, both the receiving and transmitting radios should be using the
same message database.
680-090-2041
Version 6.0eng
43
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.9.1
Receiving SMS Messages
When an SMS message is received, the
radio will display the SMS Message
icon (
). You may view the last
twenty received SMS messages from
MENU | SMS | RECEIVED
MESSAGES.
Figure 4.42 – SMS message received
icon
The
indicates unread
messages and will
remain on until all
new messages have
been viewed. Within
the Received
Messages menu,
unread messages
are preceded by a ∗.
Press MENU
Use up/down
keys to select
SMS
Use up/down
keys to select
Received
Messages
Select
message to
view
Figure 4.43 – Viewing received SMS message
680-090-2041
Version 6.0eng
44
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.9.2
Sending SMS Messages
SMS messages are sent from
MENU | SMS | MSG EDIT. Use
the alpha-numeric keypad to enter
the desired text, then enter the
destination ID or select it from the
index.
Sending SMS
messages may be
disabled by radio
programming. When
SMS is disabled,
SENT MESSAGES
and MSG EDIT will
not appear on the
SMS menu. The
radio will still receive
SMS and you can
view received
messages.
Press MENU
Use up/down
keys to select
SMS
Use up/down
keys to select
Msg Edit
Key in
message and
press OK
Enter
destination ID
or use INDEX
then press
SEND
Figure 4.44 – Sending SMS message
680-090-2041
Version 6.0eng
45
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.9.3
Receiving Predefined Messages
When a predefined message is
received, the corresponding text is
pulled from the database and
displayed along with the source ID.
You may also view the last ten
received predefined messages from
MENU | PREDEFINED MESSAGES
| RECEIVED MESSAGES.
680-090-2041
Version 6.0eng
Figure 4.45 – Received predefined message
46
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.9.4
Sending Predefined Messages
Predefined messages are sent from
MENU | PREDEFINED
MESSAGES | MESSAGE LIST.
Select the desired message from
the list then enter the destination ID
or select it from the index.
Sending predefined
messages may be
disabled in radio
programming. When
predefined messages
are disabled, the
message list may still
be viewed, but
predefined messages
can’t be sent.
Press MENU
Use up/down
keys to select
Predefined
Messages
Use up/down
keys to select
Message List
Use up/down
to select
message and
press
SELECT
Enter
destination ID
or use INDEX
then press
SEND
Figure 4.46 – Sending predefined message
680-090-2041
Version 6.0eng
47
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.9.5
Setting Present Status
The radio’s present status may be
set from MENU | STATUS |
PRESENT STATUS or by pressing
the Current Status Entry key
Press MENU
(default:
pound key) until
“CUR. STATUS:” is prompted.
When the radio is
turned on, the
present status will be
reset to the first
status option in the
list.
4.2.9.6
Receiving Status
When a status message is
received, the corresponding text is
pulled from the database and
displayed along with the source ID.
You may also view the last ten
received status messages from
MENU | STATUS | RECEIVED
STATUS.
Use up/down
keys to select
Status
Use up/down
keys to select
Present
Status
Use up/down
keys to select
new status
then press
SELECT
Figure 4.47 – Selecting current status
Figure 4.48 – Receiving status
680-090-2041
Version 6.0eng
48
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.9.7
Sending Status
Your current status may be sent
from MENU | STATUS | SEND
STATUS. Enter the destination ID
or use the index to select it, then
press SEND to transmit your
current status.
Transmitting status
may be disabled in
radio programming.
When status
transmissions are
disabled, SEND
STATUS and
STATUS REQUEST
will not appear on the
STATUS menu.
Press MENU
Use up/down
keys to select
Status
Use up/down
keys to select
Send Status
Enter unit ID
or use INDEX
then press
SEND
Figure 4.49 – Sending status
680-090-2041
Version 6.0eng
49
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.9.8
Requesting Status
You may request the current status
of another radio from MENU |
STATUS | STATUS REQUEST.
Enter the destination ID or select it
from the index, then press SEND to
request another radio’s status.
Transmitting status
may be disabled in
radio programming.
When status
transmissions are
disabled, SEND
STATUS and
STATUS REQUEST
will not appear on the
STATUS menu.
Press MENU
Use up/down
keys to select
Status
Use up/down
keys to select
Status
Request
Enter unit ID
or use INDEX
then press
SEND
Figure 4.50 – Requesting status
680-090-2041
Version 6.0eng
50
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.10
Selecting from User Tone List
Press the User Selectable Code
Entry keys (short or long press of
the numeric keypad) to enter a
one or two digit User Tone List
selection. The name associated
with the new tone/NAC selection
will be briefly displayed when it is
selected and when PTT is
pressed. The user selected code
will be utilized for the current
channel until it is changed to
another tone or the radio is
reprogrammed. Selecting Code
“0” will return the radio to the
default tone/NAC selection
originally programmed for the
channel.
Key in the
User Tone
List number to
use a new
channel
tone/NAC
selection
Figure 4.51 – Selecting new user tone/NAC
Current User
Tone List
selection is
displayed
when PTT is
pressed
Figure 4.52 – Current selection displayed w/PTT
User
Selectable
Code Entry of
“0” selects the
default
channel
programming
Figure 4.53 – Selecting default tone/NAC
The ability to use the User Tone List is set in radio programming on a per
channel basis. Some channels may not have the User Tone List
enabled.
680-090-2041
Version 6.0eng
51
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.11
Adding and Deleting from Command Zone
Press the Add/Delete from
Command Zone key (default:
star key) until “Add to
Command Zone?” is displayed.
Then press the left soft key (OK)
to add the displayed channel to
the command zone. Once the
command zone contains
channels, it will be displayed on
the zone selection list.
Channels may be removed from
the command zone by selecting
the desired channel in the
command zone. Then press the
Add/Delete from Command Zone
key until “Delete from Command
Zone” is displayed. Then press
the left soft key (OK) to remove
the channel from the command
zone.
Press
Command
Zone key until
“Add To
Command
Zone?” Then
press YES
Figure 4.54 – Adding to Command Zone
Use Zone
Entry to
switch to the
Command
Zone
Figure 4.55 – Switching to Command Zone
Press
Command
Zone key until
“Delete from
Command
Zone?” Then
press YES
Figure 4.56 – Deleting from Command Zone
680-090-2041
Version 6.0eng
52
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.2.12
Channel Programming
Front panel channel programming is
an option offered to some
customers. Radios must be
purchased with channel
programming capability or returned
to the factory to have the capability
added.
On channel programming capable
radios, the channel parameters may
be edited or created from the radio’s
alpha-numeric keypad. Channel
programming may be chosen from
MENU | CHANNEL PARAMETERS
| CHANNELS. Enter the channel
edit password then press OK.
Choose the appropriate channel
then press SELECT. Then change
the appropriate parameters.
The channel programming access
password is set in radio
programming. This password is
independent of the power-on
password.
Channel programming
may be disabled in
radio programming.
When channel
programming is
disabled, CHANNEL
will not appear on the
CHANNEL
PARAMETERS
menu.
Press MENU
Use up/down
to select
Channel
Parameters
Use up/down
to select
Channels
Enter
password
then press
OK
Use up/down
to select
channel to be
edited
Use up/down
to select
parameter to
edit, then
save changes
Figure 4.57 – Channel programming
680-090-2041
Version 6.0eng
53
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.3
Menu Operation
The menu function is used to access many features in the radio and also provides
information about each radio. The features available from the menu depend on the
analog/digital mode selection and the radio programming. The following menu trees
depict the available menu selections, but some may not be accessible on your radio
because of radio programming. The numbers shown may be used as keypad shortcuts
to the menu option.
4.3.1
Analog Mode Menu Tree
MENU
1 SETTINGS
11 TONES
note 1
111 ALERT TONE – Adjust user alert tone volume
112 CALL ALERT – Adjust call alert tone volume
113 KEYPAD TONE – Adjust key press tone volume
12 ILLUMINATION – Change backlighting & Transmit/Receive LED, on/off/auto
13 DISPLAY
note 1
note 1
131 DISPLAY DIRECTION (portable only) – Invert display, normal/invert
133 CONTRAST – Adjust contrast
134 COLOR – Change backlight color
14 ACCESSORY
141 EXTERNAL ACCESSORY – Use external accessory, yes/no
142 MICROPHONE SENSITIVITY (mobile only) – Set mic sensitivity
143 VOX (portable only)
VOX MODE – Enable VOX, on/off
VOX LEVEL ADJUST – Adjust VOX threshold
15 PASSWORD
151 PASSWORD QUERY – Enable turn-on password, on/off
152 PASSWORD CHANGE – Change turn-on password, enter & confirm
16 SERIAL PORT – Select serial port type, data/GPS
17 SQUELCH – Adjust analog squelch level
select data to program
note 1
18 GREETING MSG – Edit turn-on greeting message
19 FACTORY SETTINGS
note 1
191 RESTORE SETTINGS – Restore settings menu items to factory settings
680-090-2041
Version 6.0eng
54
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
6 RADIO INFO
61 IDENTS
SERIAL NO – View radio serial number
ANI, SC, ACK – View analog IDs
IDENT – View digital unit ID
RADIO NAME
TERMINAL IP-ID – View IP address
SYSTEM NO – View system ID
WACN – View wide area communication network ID
62 SOFTWARE
VERSION – View microcontroller flash version
DSP VERSION – View DSP flash version
63 HARDWARE
UNIT, RF CARD, FRONT – View PCB assembly versions
DSP, ENCRYPT, BAND – View PCB assemly & encryption versions & band
64 BATTERY INFO (portable only) (for OEM rechargeable batteries)
CHARGE, COUNT – View remaining battery capacity & charge cycle count
VOLT, CURR, TEMP – View battery voltage, current & temperature
TYPE – View battery type
65 MEASUREMENT
651 RSSI – Measure receive signal strength
652 GPS – View present GPS data
653 POWER SUPPLY – Measure supply voltage
7 CHANNEL PARAMETERS
71 CHANNEL SCAN – View & edit current zone’s scan list
72 GROUPS – View & select new talk group from list
73 GROUP SCAN – Enable talk group scan (receive any talk group in list), on/off
74 CHANNELS – View & edit channel programming
note 6
75 ZONES – View & select zone
76 CLONER – Clone channel parameters to another radio
680-090-2041
Version 6.0eng
55
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4.3.2
Digital Mode Menu Tree
MENU
1 SETTINGS
11 TONES
note 1
111 ALERT TONE – Adjust user alert tone volume
112 CALL ALERT – Adjust call alert tone volume
113 KEYPAD TONE – Adjust key press tone volume
12 ILLUMINATION – Change backlighting & Transmit/Receive LED, on/off/auto
13 DISPLAY
note 1
note 1
131 DISPLAY DIRECTION (portable only) – Invert display, normal/inverse
133 CONTRAST – Adjust contrast
134 COLOR – Change backlight color
14 ACCESSORY
141 EXTERNAL ACCESSORY – Use external accessory, yes/no
142 MICROPHONE SENSITIVITY (mobile only) – Set mic sensitivity
143 VOX (portable only)
VOX MODE – Enable VOX, on/off
VOX LEVEL ADJUST – Adjust VOX threshold
15 PASSWORD
151 PASSWORD QUERY – Enable turn-on password, on/off
152 PASSWORD CHANGE – Change turn-on password, enter & confirm
16 SERIAL PORT – Select serial port type, data/GPS
17 SQUELCH – Adjust analog squelch level
select data to program
note 1
18 GREETING MSG – Edit turn-on greeting message
19 FACTORY SETTINGS
note 1
191 RESTORE SETTINGS – Restore settings menu items to factory settings
2 CALL LOG – View last ten caller IDs and last ten called IDs
note 2
3 SMS
31 RECEIVED MESSAGES – View last twenty received SMS
32 SENT MESSAGES – View last ten sent SMS
33 MSG EDIT – Key & send new SMS
680-090-2041
Version 6.0eng
note 3
note 3
56
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
4 PREDEFINED MESSAGES
41 RECEIVED MESSAGES – View last ten received messages
42 SENT MESSAGES – View last ten sent messages
note 4
43 MESSAGE LIST – View and send predefined message
note 4
5 STATUS
51 PRESENT STATUS – View and set present status
52 SEND STATUS – Send present status to another radio
note 5
53 STATUS REQUEST – Request another radio’s present status
note 5
54 RECEIVED STATUS – View last ten received status messages
6 RADIO INFO
61 IDENTS
SERIAL NO – View electronic serial number
ANI, SC, ACK – View analog IDs
IDENT – View digital unit ID
RADIO NAME
TERMINAL IP-ID – View IP address
SYSTEM NO – View system ID
WACN – View wide area communication network ID
62 SOFTWARE
VERSION – View microcontroller flash version
DSP VERSION – View DSP flash version
63 HARDWARE
UNIT, RF CARD, FRONT – View PCB assembly versions
DSP, ENCRYPT, BAND – View PCB assemly & encryption versions & band
64 BATTERY INFO (portable only) (for OEM rechargeable batteries)
CHARGE, COUNT – View remaining battery capacity & charge cycle count
VOLT, CURR, TEMP – View batter voltage, current and temperature
TYPE – View battery type
65 MEASUREMENT
651 RSSI – Measure receive signal strength
652 GPS – View present GPS data
653 POWER SUPPLY – Measure supply voltage
680-090-2041
Version 6.0eng
57
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
7 CHANNEL PARAMETERS
71 CHANNEL SCAN – View & edit current zone’s scan list
72 GROUPS – View& select new talk group from list
73 GROUP SCAN – Enable talk group scan (recieve any talk group in list), on/off
74 CHANNELS – View & edit channel programming
note 6
75 ZONES – View & select zone
76 CLONER – Clone channel parameters to another radio
8 ENCRYPTION
note 7
81 ALGORITHM – View and select available encryption types
82 ENCRYPTION INFO – View encryption information, Algorithm ID and Key ID
note 1
These selections are unavailable when the Settings option is disabled in radio
programming.
note 2
This selection is unavailable when the Call Log option is disabled in radio
programming.
note 3
These selections are unavailable when the SMS option is disabled in radio
programming.
note 4
These selections are limited or unavailable when the Predefined Messages
option is disabled in radio programming.
note 5
These selections are unavailable when the Status option is disabled in radio
programming.
note 6
This selection is unavailable when the Channel Programming option is
disabled in radio programming.
note 7
This selection is only available when encryption option is purchased.
680-090-2041
Version 6.0eng
58
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
ACCESSORIES
Original Midland accessories give you operational efficiency, flexibility and reliability in
difficult working conditions.
ACCESSORY
MIDLAND P/N
Microphone
ACC4425
Loudspeaker
ACC1425
Under dash mounting kit
560-090-0091
Trunk mounting kit
90-2528
Power cable assembly
90-0042
Programming software
MRP P25
Programming cable
ACC2600
Cloning kit
ACC2305
Test and alignment adaptor
ACC2205
680-090-2041
Version 6.0eng
59
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
STORAGE AND CLEANING PRECAUTIONS
Keep the radio clean and away from dust, humidity, dense sunlight,
extreme heat sources and liquids.
Avoid exposing the radio and accessories to cleaning solvents, aerosol
sprays, adhesive agents, paints etc. Chemical reactions with such agents
will destroy seals, case, display and finish.
If the radio is exposed to dirt, wipe with a soft and moist cloth at least
once a week to prevent build-up of dirt and dust deposits.
Your radio does not require any periodic maintenance.
60
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE(s)
SOLUTION(s)
No display on LCD
when radio is
turned on.
Fuse is blown or
connections are insecure.
Check fuse and connections.
No sound from
Loudspeaker.
Volume level is too low.
or
Squelch level is too high.
or
Radio is set for external
accessory.
Adjust volume level.
or
Adjust squelch level.
or
Turn off external accessory.
or
Check speaker connections.
No response to key
press.
Key lock is on.
Unlock the keypad.
No answer to calls.
Out of range of other
stations or signal is blocked
by terrain.
Switch to high output power.
or
Move closer until you have a
“line-of-sight” to the other
station.
Radio to PC
connection fails.
Serial port is set for GPS
receiver.
Change serial port selection to
“DATA”.
61
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
SPECIFICATIONS
GENERAL SPECIFICATIONS
Modulation
16K0F3E, 11K0F3E , 8K0D1E, 8K0F1E
Data Rate
P25 : 9.6 kb/s
Symbol Rate
P25 : 4.8 kb/s
Protocol
Project 25-CAI : 4.4 kb/s IMBE
Encryption Algorithms
DES-OFB, AES
Channel Capacity
999
Operating Voltage Range
13.6 Vdc ± % 20 (10.88-16.32 Vdc)
Standby Current Drain (backlight off)
≤ 0.4 A
RX Current Drain
≤ 1.5
TX Current Drain
≤ 8.5 A
Display
64x128 pixel LCD
Keypad
20 key, back lit
Dimensions (HxWxL) (projections not included)
1.8x6.5x6.5 in (46x165x165 mm)
Weight
1.50 kg
ENVIROMENTAL SPECIFICATIONS
Operating Temperature Range
-30°C / +60°C
Storage Temperature Range
-40°C / +85°C
Humidity
% 95, 50°C
ESD
IEC 801- 2KV
Water and Dust Protection
IP65, MIL-STD
62
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
MILITARY STANDARDS 810C/D/E/F
MIL-STD 810C
Low Pressure
MIL-STD 810D
Method
Proc./
Cat.
Method
500.1
MIL-STD 810E
Proc./
Cat.
Method
500.2
II
MIL-STD 810F
Proc./
Cat.
Method
500.3
II
500.4
II
501.3
I/A1,
II/A1
501.4
I/Hot,
II/Hot
Proc./
Cat.
High Temperature
501.1
I, II
501.2
I/A1,
II/A1
Low Temperature
502.1
502.2
I/C1,
II/C2
502.3
I/C1,
II/C2
502.4
I/C1,
II/C2
Temperature
Shock
503.1
–
503.2
I/A1-C2
503.3
I/A1-C2
503.4
I/Hot-C2
Solar Radiation
505.1
II
505.2
505.3
505.4
Rain
506.1
I, II
506.2
I, II
506.3
I, II
506.4
I, III
Humidity
507.1
II
507.2
II
507.3
II
507.4
–
Salt Fog
509.1
–
509.2
–
509.3
–
509.4
–
Sand and Dust
510.1
510.2
I, II
510.3
I, II
510.4
I, II
Vibration
514.2
VIII/F,
XI/H
514.3
I/10, II/3
514.4
I/10, II/3
514.5
I/24, II/5
Shock
516.2
I, II, V
516.3
I, V, VI
516.4
I, V, VI
516.5
I, V, VI
63
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
8.1
Receiver Technical Specifications
RECEIVER SPECIFICATIONS
VHF
UHF
Frequency Range
136-174 MHz
380-470 MHz
Frequency Separation
Full Bandsplit
Full Bandsplit
Channel Spacing
12.5 / 20 / 25 / 30 kHz
12.5 / 20 / 25 / 30 kHz
Frequency Step
2.5 / 3.125 kHz
2.5 / 3.125 kHz
Rated Audio Output Power *
7.5 W / 8 Ω
7.5 W / 8 Ω
Frequency Stability *
(-30°C / +60°C; 25°C ref)
± 2.5 ppm
± 1.5 ppm
≤ -119 dBm
≤ -118 dBm
≤ -120 dBm
≤ -117 dBm
≤ -119 dBm
≤ -116 dBm
Adjacent Channel Rejection
Analog 25 kHz channel *
Analog 12.5 kHz channel *
Digital 12.5 kHz channel **
≥ 75 dB
≥ 63 dB
≥ 63 dB
≥ 75 dB
≥ 63 dB
≥ 63 dB
Intermodulation Rejection *
≥ 75 dB
≥ 75 dB
Spurious Response Rejection*
≥ 85 dB
≥ 85 dB
Hum and Noise Ratio
Analog 25 kHz channel *
Analog 12.5 kHz channel *
Digital 12.5 kHz channel **
≥ 48 dB
≥ 42 dB
≥ 50 dB
≥ 42 dB
≥ 36 dB
≥ 50 dB
≤3%
≤3%
Analog Sensitivity *
12 dB SINAD
Digital Sensitivity **
5% BER
1% BER
Audio Distortion *
* Measured in the analog mode per EIA-603 under nominal conditions.
** Measured in the digital mode per TIA-102.CAAA under nominal conditions.
64
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
8.2
Transmitter Technical Specifications
TRANSMITTER SPECIFICATIONS
VHF
UHF
Frequency Range
136-174 MHz
380-470 MHz
Frequency Separation
Full Bandsplit
Full Bandsplit
Channel Spacing
12.5 / 20 / 25 / 30 kHz
12.5 / 20 / 25 / 30 kHz
Frequency Step
2.5 / 3.125 kHz
2.5 / 3.125 kHz
Rated RF Output Power *
5-50 W/10-110W
5-40 W
Frequency Stability *
(-30°C / +60°C; 25°C ref)
± 2.5 ppm
± 1.5 ppm
Modulation Limiting *
Analog 25 kHz channel
Analog 12.5 kHz channel
± 5.0 kHz
± 2.5 kHz
± 5.0 kHz
± 2.5 kHz
C4FM Modulation Fidelity **
RMS Error
C4FM Deviation
≤2%
1800 ±100 Hz
≤2%
1800 ±100 Hz
Spurious Emissions *
(Conducted and Radiated)
≤ -70 dBc
≤ -70 dBc
Audio Frequency Response *
(6 dB/Octave Pre-emphasis
from 300 to 3000 Hz)
+1, -3 dB
+1, -3 dB
≥ 52 dB
≥ 46 dB
≥ 46 dB
≥ 40 dB
≤1%
≤1%
Hum and Noise Ratio
Analog 25 kHz channel *
Analog 12.5 kHz channel *
Audio Distortion *
* Measured in the analog mode per EIA-603 under nominal conditions.
** Measured in the digital mode per TIA-102.CAAA under nominal conditions.
65
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
WARRANTY STATEMENT
Midland Radio Corporation (herein, Midland) warrants each new radio product manufactured or
supplied by it to be free from defects in material and workmanship under normal use and service
for a period listed below, provided that the user has complied with the requirements stated herein.
The Warranty period begins on the date of purchase from an Authorized Midland Sales and
Service Outlet. This Warranty is offered to the original end user and is not assignable or
transferable. Midland is not responsible for any ancillary equipment attached to or used in
conjunction with Midland products.
Midland offers to the original end user a Two (2) Year Limited Warranty on Midland Business and
Industrial radio products. Accessories carry a One (1) Year Limited Warranty.
During this period, if the product fails to function under normal use because of manufacturing
defect(s) or workmanship, it should be returned to the Authorized Midland Sales and Service
Outlet from which it was purchased. The Sales and Service Outlet will repair the product or return
the product for repair to Midland or its Authorized Repair Depot. The user is responsible for the
payment of any charges or expenses incurred for the removal of the defective product from the
vehicle or other site of its use; for the transportation of the product to the Sales and Service Outlet;
for the return of the repaired / replacement product to the site of its use and for the reinstallation of
the product.
Midland shall have no obligation to make repairs or to cause replacement required, which results
from normal wear and tear or is necessitated in whole or in part by catastrophe, fault or negligence
of the user, improper or unauthorized alterations or repairs to the Product, incorrect wiring, use of
the Product in a manner for which it was not designed or by causes external to the Product. This
Warranty is void if the product serial number is altered, defaced or removed.
Midland’s sole obligation hereunder shall be to replace or repair the Product covered in this
Warranty. Replacement, at Midland’s option, may include a similar or higher-featured product.
Repair may include the replacement of parts or boards with functionally equivalent reconditioned
or new parts or boards. Replaced parts, accessories, batteries or boards are warranted for the
balance of the original time period. All replaced parts, accessories, batteries or boards become the
property of Midland.
THE EXPRESS WARRANTIES CONTAINED HEREIN ARE IN LIEU OF ALL OTHER
WARRANTIES, EITHER EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING, WITHOUT
LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE.
FOR ANY PRODUCT WHICH DOES NOT COMPLY WITH THE WARRANTY SPECIFIED, THE
SOLE REMEDY WILL BE REPAIR OR REPLACEMENT. IN NO EVENT WILL MIDLAND BE
LIABLE TO THE BUYER OR ITS CUSTOMERS FOR ANY DAMAGES, INCLUDING ANY
SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES, OR FOR THE LOSS
OF PROFIT, REVENUE OR DATA ARISING OUT OF THE USE OF OR THE INABILITY TO USE
THE PRODUCT.
This warranty is void for sales and deliveries outside of the U. S. A. and Canada.
66
680-090-2041
Version 6.0eng
http://www.midlandradio.com
Syn-Tech III P25 Mobile Radio
OPERATION MANUAL
5900 Parretta Drive
Kansas City, MO. 64120
http://www.Midlandradio.com
67
680-090-2041
Version 6.0eng
http://www.midlandradio.com

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : No
Page Count                      : 76
XMP Toolkit                     : XMP toolkit 2.9.1-13, framework 1.6
About                           : uuid:7cbcc6ea-ea20-4625-9f2a-c404edd60364
Producer                        : Acrobat Distiller 6.0.1 (Windows)
Company                         : Midland Radio
Create Date                     : 2008:11:21 10:10:51-06:00
Creator Tool                    : Acrobat PDFMaker 6.0 for Word
Modify Date                     : 2008:11:21 10:11:49-06:00
Metadata Date                   : 2008:11:21 10:11:49-06:00
Document ID                     : uuid:eacef967-49b6-47c8-ba60-a94357c0efe0
Format                          : application/pdf
Title                           : STM Operation Manual
Creator                         : rfrench
Author                          : rfrench

EXIF Metadata provided by EXIF.tools

Midland Radio 901090 VHF Mobile Transceiver User Manual STM Operation Manual

Midland Radio Corporation VHF Mobile Transceiver STM Operation Manual

Users Manual

FCC ID Filing: MMA901090

Navigation menu

Namespaces

Views

Navigation