Motorola Gm300 Installation Manual

Professional Radio
GM Series
Radio Installation Manual
68P64112B30
Issue: July 2000 

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Computer Software Copyrights
The Motorola products described in this manual may include copyrighted Motorola computer programs stored
in semiconductor memories or other media. Laws in the United States and other countries preserve for
Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or
reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer
programs contained in the Motorola products described in...

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SAFETY INFORMATION
Read this information before using your radio.
SAFE AND EFFICIENT OPERATION OF MOTOROLA TWO-WAY RADIOS
This document provides information and instructions for the safe and efficient operation of Motorola
Portable and Mobile Two-Way Radios. The information provided in this document supersedes the
general safety information contained in user guides published prior to 1 January 1998.
For information regarding radio use in hazardous areas, please refer to the Factory Mutual (FM)...

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Mobile Antenna Installation
Install the vehicle antennaexter nalto the vehicle and in accordance with:
a. The requirements of the antenna manufacturer/supplier
b. Instructions in the radio installation manual.
Control Station Operation
When radio equipment is used to operate as a control station, it is important that the antenna be
installed outside the building and away from places where people may be in close proximity.
INSTALLATION WARNINGS
For vehicles with electronic anti-lock/anti-skid brakes,...

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5.Ensure that there is a minimum of two vehicle lengths between the front of the vehicle and any
object in the vehicle’s forward path. Then, set the vehicle transmission selector to DRIVE. Press
the brake pedal just far enough to stop the vehicle motion completely. Key the radio transmitter.
Verify that the vehicle does not start to move while NOT speaking into the microphone.
6.Repeat Step 5, except do so while speaking into the microphone.
7.Release the brake pedal completely and accelerate the...

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Ta b l e o f C o n t e n t s
SAFETY INFORMATION ....................................................................................... iii
Chapter 1 INSTALLATION
1.0 Introduction .......................................................................................................... 1-1
1.1 General Information ....................................................................................... 1-1
1.2 Plan the Installation...

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4.4 Voltage Regulator Noise ...............................................................................2-11
4.5 Hood and Trunk Lid Noise ............................................................................2-11
4.6 Other Electrical Noises .................................................................................2-12
4.7 Wheel Static..................................................................................................2-12
4.8 Ground...

Chapter 1
INSTALLATION
1.0 Introduction
1.1 General Information
There are two methods of installing your mobile radio:
1.Using the direct mounting trunnion and power cables supplied with a standard radio package.
2.Mounted in the car radio cut-out (using the required GLN7320_ mounting kit, per ISO7736).
An accessory connector on the rear of the radio (see Figure 1-4 Connections to the Back of Radio)
enables you to attach different accessories required for the installation.
A ten-pin telephone type...

1-2INSTALLATION
The following table lists power cables available for this radio:
2.2 Power Cable Installation Procedure
Begin the power cable installation as follows:
1.Determine a routing plan, keeping in mind where the radio is to be mounted.
2.Locate an existing hole with grommet in the vehicle fire wall, or use a 9.5 mm (3/8-inch) bit to
drill an access hole in the fire wall. Install a grommet with a 5 mm (3/16-inch) inside diameter
into the hole to protect the power cable.
3.From inside the vehicle,...