Installation Guide

switch, and allows the radio to “remember” the state of the radio on/off switch, even if it is changed
while the vehicle is off.
• For radio ON/OFF control independent of the ignition switch, connect the red ignition cable (pin 25
of accessory connector) to “battery hot” at the vehicle fuse block.
The ignition sense cable uses either a 3-Amp (P/N 6500139764) or 4-Amp (P/N 6580283E02) fuse.
For other considerations when connecting the ignition cable, see the MOTOTRBO Basic Service
Manual.
2.7
Antenna Installation
IMPORTANT: To assure optimum performance and compliance with RF Energy Safety
standards, these antenna installation guidelines, and instructions are limited to metal-body
vehicles with appropriate ground planes and take into account the potential exposure of back
seat passengers and bystanders outside the vehicle.
NOTICE: For mobile radios with rated power of 7 W or less, the only installation restrictions are
to use only Motorola Solutions approved antennas and install the antenna externally on metal
body vehicles. For mobile radios with rated power greater than 7 W, always adhere to all the
guidelines and restrictions in "Selecting an Antenna Site/Location on a metal Body Vehicle".
2.7.1
Selecting an Antenna Site/Location on a Metal Body Vehicle
Prerequisites:
• Be sure that the distance from the antenna location on the trunk lid is at least 85 cm (33 in.) from
the front surface of the rear seat-back to assure compliance with RF Energy Safety standards.
• Ensure that the trunk lid is grounded by connecting grounding straps between the trunk lid and the
vehicle chassis.
CAUTION: If these conditions cannot be satisfied, then mount the antenna on the roof top.
Procedure:
1 Do one of the following:
External installation
Check the requirements of the antenna supplier and install the vehicle antenna external to a metal
body vehicle in accordance with those requirements.
Roof top
For optimum performance and compliance with RF Energy Exposure regulations, mount the
antenna in the center area of the roof.
Trunk lid
On some vehicles with clearly defined, flat trunk lids, the antennas of some radio models (see
restrictions below) can also be mounted on the center area of the trunk lid. For vehicles without
clearly defined, flat trunk lids (such as hatchback autos, sports utility vehicles, and pick-up trucks),
mount the antenna in the center area of the roof.
NOTICE: For all VHF and UHF models with the output power set to 30 W or higher, the
¼ wave antenna shall be mounted only in the center area of the roof, not on the trunk lid,
to ensure compliance with RF Energy Safety standards.
2 Ensure that the antenna cable can be easily routed to the radio. Route the antenna cable as far
away as possible from the vehicle electronic control units and associated wiring.
6880309T23-FB
Chapter 2: Installation Details for Standard Configurations
33