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Installing the Hardware
44
Connect the BLACK wire of the included 1. power cable to the
NEGATIVE (-) side of your power source.
Connect the RED wire of the included 2. power cable to the POSITIVE
(+) side of your power source.
Connect the 3. power cable to the power connector on the back of the
UM425. (The power connector only ts one way.)
NOTE: To extend the life of the radio, use waterproof tape to seal
electrical connections.
Install your antenna according to the manufacturer’s instructions. 4.
See Antenna Selection and Installation on page 65 for more details. 5.
Connect the PL-259 connector from the antenna lead-in wire to the 6.
SO238 connector labeled ANTENNA on the back of the UM425.
Radio connector,
SO238 (female
PL-259)
Antenna lead-in
connector,
male PL-259
UM425 VHF OM.indd 44 28/9/11 11:55:21 AM