
Enhance your radio’s capabilities
A comprehensive range of accessories is also available so that the radios can be customized to suit your needs. Adding the proper handset, 
speakers, microphone & mounting accessories can enhance your productivity. Motorola accessories are built with the highest quality 
standards and are specially engineered to assure maximum performance of your radio.
GM3189 & GM3689 Specifications*
MB
General Specifications
Frequency 66-88MHz 
Channel Capacity 10 channels (GM3189), 100 channels (GM3689) 
Power Output 1-25W 
Power Supply 13.8 Vdc (11 Vdc - 16.6 Vdc) negative vehicle ground 
Channel Spacing 12.5/20/25KHz 
Frequency Stability ( -30
O
C, + 60OC, +25OC Ref) +/-2.5ppm 
Dimensions ( H * W * L ) 44mm x 169mm x 118mm 
Weight 1.01 Kg 
Operating temperature - 30 to + 60 
Sealing Passes rain and dust testing to IP54 
Shock and Vibration Meets MIL-STD 810-C, D&E and TIA/EIA 603
Receiver MB VHF UHF
Sensitivity ( 12db Sinad ) 0.35uV (12.5KHz)
Intermodulation 60dB (12.5KHz) 65dB (12.5KHz) 60dB (12.5KHz)
70dB (25KHz) 75dB (25KHz) 70dB (25KHz)
Adjacent Channel Selectivity 60dB (12.5KHz) 65dB (12.5KHz) 60dB (12.5KHz)
70dB (25KHz) 75dB (25KHz) 70dB (25KHz) 
Spurious Rejection 70dB 75dB 70dB 
Rated Audio (extended audio with 4 ohm speaker ) 4W internal
Audio Distortion @ Rated Audio 3% typical 
Hum and Noise -40dB (12.5KHz) -40dB (12.5KHz) -35dB (12.5KHz)
-45dB (25KHz) -45dB (25KHz) -40dB (25KHz) 
Audio Response (300 to 3000Hz)  +1, -3dB 
Conducted Spurious Emission -57dBm < 1GHz
VHF UHF
136-162MHz 
146-174MHz
403-440MHz 
438-470MHz 
465-495MHz
O
C
0.3uV (25KHz)
13W external
-47dBm > 1GHz
490-527MHz
25W
Accessories
In Vehicle Solution
HMN1035 Heavy-duty Palm Microphone 
HMN3596 Compact Palm Microphone
RMN5029 Enhanced Keypad Microphone 
AAREX4617 Telephone Style Handset
Hands free Solution
GMMN4065 Visor Mounted Microphone
(requires use of the remote PTT configuration below)
RLN4857 Pushbutton with Remote PTT
RLN4836 Emergency Footswitch PTT 
RLN4856 Remote Footswitch PTT
Dispatch Desktop Solution
Transmitter MB VHF UHF
Modulation Limiting +/- 2.5KHz (12.5KHz)
+/-4KHz (20KHz) 
+/-5KHz (25KHz)
FM Hum & Noise -40dB (12.5KHz) -40dB (12.5KHz) -35dB (12.5KHz)
-45dB (25KHz) -45dB (25KHz) -40dB (25KHz) 
Conducted / Radiated Power -36dBm < 1GHz
-30dBm > 1GHz
Adjacent Channel Power -60dB (12.5KHz)
-70dB (25KHz) 
Audio Response (300 to 3000Hz) +1, -3dB 
Audio Distortion @ 1000Hz, 60% Rated Max. Deviati 3% typical
* Availability subject to country’s laws and regulations. Radios meet applicable regulatory requirements. All specifications subject to
change without notice. Specifications are not representative of all radios and may vary in different radios.
Stringent Motorola Accelerated Life 
Testing simulating five years of hard use in 
real life. EIA R5-3168 in Shock, Vibration, 
Dust, Humidity, IP54 for Sealing.
Stamp of approval from the U.S. 
Military for use in rough environment.
Compliance with ISO 9001 Standard on international quality system 
assurance on design, development, 
production, installation and servicing of 
a product.
HMN3000 Desktop Microphone
RSN4001 13 W External speaker 
HSN8145 7.5 W External speaker 
HPN4002 Desktop Power Supply
Visit us at www.motorola.com/cgiss/AP
MOTOROLA and the stylized M Logo are trademarks of Motorola, Inc. All other products or service names are the property of their respective 
owners. 2004, Motorola.
AC3-01-014Rev.2
G

AFFORDABLE YET 
POWERFUL COMBINATION
GM3189 & GM3689 Select V

In today’s fast-moving workplace, efficient communications 
solutions are vital to your competitiveness. A misunderstood 
message may have big consequences. That is why 75 years of 
pushing the frontiers in radio technology makes Motorola the 
brand of choice when you need reliable, clear communication.
The GM3189 and GM3689 two-way radios comfortably meet the 
level of reliability and clarity needed for industries like Taxis and 
Courier services. The rugged build quality, characteristic to all 
Motorola mobiles, means they are apt for Construction and 
Manufacturing activities too.
Advanced features such as PTT-ID, Emergency and Lone Worker 
capabilities are possible with these Select V mobiles. 
Furthermore, your investment is protected, as the GM3189 and 
GM3689 are compatible with the existing range of accessories.
GM3189: Affordable and Efficient 
Communications Solution
The GM3189 offers ease of use and is an essential 
appliance for businesses on the move.
10 Channels
Increases user efficiency by allowing them to 
address different groups of users.
2 Programmable Buttons
Provides access to frequently-used functions such as 
Scan, Monitor and Transmitting Power Level.
One-character Channel Display
Display of the current communication channel at a 
glance.
GM3689: Customisable and 
Cost-Effective Productivity Tool
The GM3689 is a functional communications solution 
and also adaptable to growing business needs. Each 
unit can be customised to suit individual users’ 
needs, even within the same fleet. The wide range of 
capabilities makes this mobile great value for money.
100 Channels
Able to accommodate your growing business needs 
and communication channels.
3 Programmable Buttons
Allows access to frequently-used functions, such as 
Scan, Repeater Talkaround, Transmitting Power Level, 
Emergency and others.
8-character Alphanumeric Display
Displays icons for quick identification of radio status, 
and identifies incoming callers.
Option Board Expandability
Additional capabilities such as data transfer and 
voice storage can be added easily.
Contact List
Up to 255 names, numbers and caller IDs can be 
called up quickly and conveniently.
GM3189 & GM3689 Select V

Common Features of GM3189 and 
GM3689
Signalling Standard
Both mobiles support the following Select V 
signalling standards, and programming of up to two 
‘user-defined’ signalling standards is possible.
• ZVEI
• Modified ZVEI
• French Modified ZVEI
• 20ms CCIR
• 70 ms CCIR
• 100 ms CCIR
• EEA
Rugged Construction
The mobiles are built to meet or exceed the stringent 
Motorola ALT, MIL-STD 810C/D/E and IP54 
international standards, which make them suitable 
for use in rough environments.
Audio Enhancement
The mobiles offer voice compression mode and 
powerful 4W front-firing speakers for maximal audio 
clarity. Optional 13W external speakers are available 
for high-noise environments like the construction and 
manufacturing industries.
User Friendly
• Large ON/OFF Knob and Channel Buttons enable 
easy and quick operation.
• Programmable Buttons provide convenient access 
to frequently-used functions.
• LED Status Indicators and Alert Tones allow clear 
indication of radio’s operating status and timely 
notification of incoming calls.
16-pin External Accessory Port
Allows easy expansion of radio’s capability, without 
messy dismantling and rewiring.
Devices such as GPS module, data modem and a host 
of others can be added on as your business needs 
grow.
Industrial Applications
The GM3189 and GM3689 can be used as a 
Radio Frequency (RF) pipe for integrated 
solutions such as Automatic Vehicle Locator 
Systems (AVL) and Telemetry. A host of devices 
can be connected via the mobile’s 16-pin 
external port, to offer a multitude of solutions.
Automatic Vehicle Locator Systems (AVL)
Allows remote tracking of your vehicle’s 
location using the Global Positioning System 
(GPS) and integrated software. This ensures a 
more efficient utilisation of the fleet, dynamic 
planning of delivery routes and estimation of 
arrival time, thereby resulting in better 
customer service and profitability. The AVL 
system can also be used to track vehicles 
carrying precious cargo and company personnel 
in high-risk environments.
Telemetry
Enables remote real-time monitoring of 
environmental conditions or equipment 
parameters. Together with integrated hardware 
and software solutions, the mobiles can be 
used for remote monitoring of water levels in 
inaccessible areas, or to track key operational/ 
process parameters to ensure the safety of 
plant workers.
PTT - ID
Identifies the radio during transmission. This saves 
the need of verbal identification, making 
communication more efficient.
Lone Worker
Provides added safety to users who work alone. The 
radio enters into Emergency mode if the user fails to 
respond to a warning signal after a stipulated time.
Stun/Unstun
Prevents abuse of the radio network. The central 
dispatcher can disable unauthorised or nuisance 
users over the air.
Emergency
Activates the emergency mode via the footswitch, 
allowing the driver to notify the central operator 
quickly and discreetly in an emergency situation.
Voice Operated Transmission (VOX)
Radio may be activated by voice control when 
connected to a Visor microphone, thus allowing users 
to concentrate on road safety.
Other Features
• Selective Call
• Car Audio Mute
• Scan
• Nuisance Channel 
Delete
• Call Forward
• Repeater/Talkaround
• External Alarm
• High/Low Power
• Local/Distant
• Public Address Mode
• Programmable
Channel Spacing