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DC POWER CABLE INSTALLATION
The vehicle battery must have a nominal rating of 12 V.
Never connect the transceiver to a 24 V battery. Be sure
to use a 12 V vehicle battery that has sufficient current
capacity. If the current to the transceiver is insufficient,
the display may darken during transmission, or transmit
output power may drop excessively.
1 Route the DC power cable supplied with the
transceiver directly to the vehicle's battery terminals
using the shortest path from the transceiver.
• If you are using a noise filter, it should be installed with
an insulator to prevent it from touching any metal on the
vehicle.
• We recommend you do not to use the cigarette lighter
socket since some cigarette lighter sockets introduce an
unacceptable voltage drop.
• If the power cable must be routed through a hole in the
vehicle chassis or body, for example in the firewall at the
front of the passenger compartment, use a rubber
grommet to protect the cable from abrasion. Dismantle
the fuse holder to pass the cable through the firewall.
• The entire length of the cable must be dressed so it is
isolated from heat, moisture, and the engine secondary
(high voltage) ignition system/ cables.
2 After the cable is in place, wind heat-resistant tape
around the fuse holder to protect it from moisture and
tie down the full run of cable.
3 To prevent the risk of short circuits, disconnect other
wiring from the negative (–) battery terminal before
connecting the transceiver.
4 Confirm the correct polarity of the connections, then
attach the power cable to the battery terminals; red
connects to the positive (+) terminal, black connects
to the negative (–) terminal.
• Use the full length of the cable without cutting off any
excess, even if the cable is longer than required. In
particular, never remove the fuse holders from the cable.
Red
Fuse (25 A)
Black
5 Reconnect any wiring you may have removed from
the negative battery terminal.
6 Connect the DC power cable to the transceiver's
power supply connector.
• Press the connectors firmly together until the locking tab
clicks.
5
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