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Page 23GX5500S
ACCESSORY CONNECTION CABLE
Connects the GX5500S to a GPS, a PA speaker, and an external speaker.
See section “3 OPTIONS” for a list of optional STANDARD HORIZON
Speakers.
DC INPUT CABLE
Connects the radio to a DC power supply capable of delivering 12 to 16V DC.
FRONT PANEL REMOTE MIC Connector
Connects the supplied Hand Microphone if desired. This connnector is
used to remote the Front panel speaker mic using the optional MEK-4
Microphone Extension
Kit. 2 front panel micro-
phones to the front mic
jack and the rear panel
mic connector at the
same time.
RAM+ MIC CONNECTORS
Connects the GX5500S to the enhanced RAM+ MIC (Remote Access Mi-
crophone) or the VH-310 Handset. Refer to section “13 ENHANCED RAM+
MIC OPERATION” or “14 VH-310 HANDSET OPERATION” for details.
ANTENNA JACK
Connects an antenna to the transceiver. Use a marine VHF antenna with
an impedance of 50 ohms.
PTT
(
Push-To-Talk
)
SWITCH
Keys the transmitter when the transceiver is in radio mode. If the transceiver
is in the intercom operation mode (between the RAM+ and the GX5500S), it
activates the GX5500S microphone for voice communications.
MICROPHONE
Transmits the voice message with reduction of background noise, using
Clear Voice Noise Reduction Technology.
MICROPHONE SPEAKER
The same audio heard through internal radio speaker is heard through
microphone speaker.
[
UP
(
S
)]
/
[
DOWN
(
T
)]
KEYS
The
[
UP
(
S
)]
and
[
DOWN
(
T
)]
on the microphone function the same as the
CHANNEL selector knob on the front panel of the transceiver.
[
16/9
]
Key
Pressing the
[
16/9
]
key immediately recalls channel 16 from any location.
Press and hold the
[
16/9
]
key to recall channel 9. Pressing the
[
16/9
]
key
again will revert the radio to the previous selected channel.