ICOM iM304 User Manual

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8
CONNECTIONS AND MAINTENANCE
7
8
■ Connections
EXTERNAL SPEAKER LEAD
Connects to an external speaker.
GPS RECEIVER LEAD
Connects to a GPS receiver for position indication.
• An NMEA0183 ver. 2.0 or 3.01 (sentence formatters RMC, GGA,
GNS, GLL) compatible GPS receiver is required. Ask your dealer
about suitable GPS receivers.
DC POWER CONNECTOR
Connects the supplied DC power cable from this connector
to an external 13.8 V DC power source.
CAUTION: After connecting the DC power cable, GPS
receiver lead and external speaker lead, cover the con-
nector and leads with an adhesive tape as shown
below, to prevent water seeping into the transceiver.
ANTENNA CONNECTOR
Connects a marine VHF antenna with a PL-259 connector
to the transceiver.
CAUTION: Transmitting without an antenna may dam-
age the transceiver.
Rubber vulcanizing
tape
Yellow: NMEA IN (+)
Green: NMEA IN (  )
Blue: Speaker (+)
Gray: Speaker (  )
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