Standard Horizon Matrix GX2000 Owner's Manual page 31

ANT Jack ( Antenna Jack )
Connects an antenna to the transceiver. Use a marine VHF antenna with
an impedance of 50 ohms.
Note on the GX2100 the antenna connection is used to receive marine
and AIS transmissions.
GND Terminal ( Ground Terminal )
Connects the GX2000/GX2100 to a good ground, for safe and optimum
performance.
Use the screw supplied with the GX2100 and GX2000 only.
Accessory Connection Cable ( Green, Blue, Gray, & Brown )
Connects the GX2000/GX2100 to a GPS receiver and AIS receiver. Refer
to section "8.4 ACCESSORY CABLE".
PA Speaker Connection Cable ( Red & Shield )
Connects the GX2000/GX2100 to a optional PA speaker. Refer to section
"3 OPTIONS" for a list of optional STANDARD HORIZON Speakers.
External Speaker Connection Cable ( White & Shield )
an external speaker. See section "3 OPTIONS" for a list of optional STAN-
DARD HORIZON Speakers.
DC Input Cable
Connects the radio to a DC power supply capable of delivering 12 to 16V
DC.
RAM3 Connector ( Remote Station Microphone Connector )
Connects the GX2000/GX2100 to the CMP30 ( RAM3 ) Remote Station
Microphone. Refer to section "16 ENHANCED RAM+ MIC OPERATION"
for details
PTT Switch ( Push-To-Talk Switch )
When in radio mode, keys the transmitter for voice communications to
another vessel. When the optional RAM3 microphone is connected and
the PA mode is selected, pressing the PTT switch allows your voice to be
amplified and supplied to the optional PA horn, intercom mode is selected,
pressing the PTT switch enables voice communications from the GX2100
or GX2000 to the RAM3 second station microphone.
Microphone
Transmits the voice message with reduction of background noise, using
Clear Voice Noise Reduction Technology.
Note: Position your mouth about 1/2" away from the microphone hole and
speak in a normal voice.
GX2000/GX2100 Page 31