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Page 23GX3500S
[
F
]
Key
Press the
[
F
]
key to activate the “Alternate” key function.
[
DISTRESS
]
Key
Used to send a DSC Distress Call. To send the distress call refer to section
“11.3.1 (Transmitting A DSC Distress Call).”
ACCESSORY CONNECTION CABLE
Connects the GX3500S to a GPS, a PA speaker, and an external speaker.
DC INPUT CABLE
Connects the radio to a DC power supply capable of delivering 12V DC.
RAM+ MIC CONNECTORS
Connects the GX3500S to the enhanced RAM+ MIC (Remote Access Mi-
crophone). Refer to section “13 ENHANCED RAM+ MIC 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 GX3500S),
or PA mode, it activates the GX3500S microphone for voice communica-
tions.
MICROPHONE
Transmits the voice message with reduction of background noise, using
Clear Voice Noise Reduction Technology.
MICROPHONE SPEAKER
The audio heard through internal radio speaker is heard through micro-
phone speaker.
[
UP
(
)]
/
[
DOWN
(
)]
KEYS
The
[
UP
(
)]
and
[
DOWN
(
)]
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.