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Air Circulation
Most transceivers rely on air flow around cooling fins to dissipate heat generated by
the transmitter. The mounting position must allow free airflow around these fins.
Obstruction
The installation of a transceiver into a vehicle should not inhibit the normal use of
the vehicle. Before finally selecting equipment positions, check that normal
operation of steering, foot pedals, gear change, hand brake etc. are not impeded,
and that heater or air-conditioning outlets, glove box and doors are not obstructed.
Always check that the drilling of mounting screw holes will not damage electrical
wiring, heater hoses or hydraulic lines.
Power Wiring
Connect the red positive and black negative wires from the transceiver power cable
to the positive and negative terminal of the battery. Do not connect to the ignition
switch or internal fuse panels as vehicle wiring to these points is of insufficient
current capacity, causing voltage drop and possible noise interference.
- fit a suitable manual circuit breaker (P/N FU-04823), as near as
practicable to the battery connection in the positive (red) wire.
- route the power cable away from high tension ignition wiring.
- secure the power cable, either to other wiring or the vehicle body, with
suitable cable ties.
- where wiring passes through bulkheads, provide appropriate protection to
prevent insulation being damaged.
- If an isolation switch is fitted between the battery’s negative terminal and the
vehicle chassis then it is important to connect the radio’s negative supply
cable to the chassis side of the isolation switch.
Earthing
Ideally the radio should be mounted as close as possible to the antenna with a common
earthing point being used for both the antenna’s earth connection and the radios earth
connection.
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