15
Adjusting Screw
Bracket
Lock-washer nut combination
8.4 ELECTRICAL CONNECTIONS
CAUTION
Connect the power cord and antenna to the radio. Antenna and Power Supply
connections are as follows:
1. Mount the antenna at least 3.28 feet (1 m) away from the radio. At the rear
of the radio, connect the antenna cable. The antenna cable must have
a PL259 connector attached. RG-8/U coaxial cable must be used if the
antenna is 25 feet (7.6 m) or more from the radio. RG58 cable can be used
for distances less than 25 feet (7.6 m).
2. Connect the red power wire to a 13.8 VDC ±20 % power source. Connect
the black power wire to a negative ground.
3. If an optional remote extension speaker is to be used, refer to next section
for connections.
4. It is advisable to have a Certified Marine Technician check the power output
and the standing wave ratio of the antenna after installation.
Accessory Cable
Antenna
Water proof
Deck Outlet
Optional SCU-38
External GPS Antenna
Fuse
Red
Power Source
Black
GPS Navigation Receiver
Optional MLS-300
External Speaker
Ensure that the SCU-38 and
the MLS-300 are located at a
distance that does not affect the
magnetic compass.
Reverse polarity connections will damage the radio!