INSTALLATION
MOBILE STATIONS
ENVOY™ TRANSCEIVER REFERENCE MANUAL 395
A heavy-duty power cable is supplied with the vehicle-mounting cradle for mobile
stations. This cable minimises the voltage drop between the battery and transceiver
during transmission.
CAUTION: If you use a thinner cable, signal quality may be affected.
Related links:
Voltage drop on page 393
Connecting the battery supply
A battery supply may be used as a direct source of power in a mobile installation, or
as a back-up source of power in a fixed installation.
To connect the battery supply:
1 Connect the red positive and black negative wires from the power cable of the
transceiver to the positive and negative terminals of the battery, respectively.
1 Fit a suitable fuse as near as practicable to the positive side of the battery
connection.
A 32 A cartridge fuse (Codan part number 15-00711) is recommended.
CAUTION: Do not connect the power supply to the ignition switch or the
body next to the transceiver due to voltage drop and noise
interference.
1 Route the power cable away from other vehicle wiring, including high-voltage
ignition wiring between the spark plugs, distributor and coil.
CAUTION: Ensure the power cable does not run together with, or parallel to,
the control cables for any long distance.
Where wiring passes through any bulkhead, provide appropriate grommets to
prevent insulation being cut.
1 Terminate the transceiver power cable with connector lugs.
1 Secure the power cable using cable ties.
1 Test that the power supply and transceiver work correctly.
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