E-45
Installing the Hardware
Connect the BLACK wire of the included
power cable
to the
NEGATIVE (-) side of your power source.
Connect the RED wire of the included
power cable
to the POSITIVE
(+) side of your power source.
Connect the
power cable
to the
power connector
on the back of the
UM425. (The power connector only fits 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.
If necessary, consult the FCC guidelines for antenna separation. See
Antenna Selection and Installation on page 69 for more details. (In
summary, the FCC recommends that antennas up to 3 dB be installed
a minimum of 3 feet from any occupied location; antennas over 3 dB
should be installed at least 6 feet away.)
Connect the PL-259 connector from the antenna lead-in wire to the
SO238 connector labeled
ANTENNA
on the back of the UM425.
1.
2.
3.
4.
5.
6.
Radio connector,
SO238 (female
PL-259)
Antenna lead-in
connector,
male PL-259