17
Installing the Hardware
1. Connect the BLACK wire of the included
power cable
to the NEGATIVE (-) side
of your power source.
2. Connect the RED wire of the included
power cable
to the POSITIVE (+) side of
your power source.
3. Connect the
power cable
to the
power connector
on the back of the UM255.
(The power connector only fits one way.)
4. NOTE: To extend the life of the radio, use waterproof tape to seal electrical
connections.
5. Install your antenna according to the manufacturer’s instructions.
6. See Antenna Selection and Installation on page 23 for more details.
7. Connect the PL-259 connector from the antenna lead-in wire to the SO238
connector labeled
ANTENNA
on the back of the UM255.
Radio connector,
SO238 (female
PL-259)
Antenna lead-in
connector,
male PL-259
