Standard Horizon MATRIX GX3000S - Manual (Page 21)

Page 21 GX3000S
ANTENNA JACK
Connects an antenna to the transceiver. Use a marine VHF antenna with
an impedance of 50 ohms.
REMOTE MIC CONNECTORS
Connects the GX3000S 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 HEADSET OPERATION” for details.
ACCESSORY CONNECTION CABLE
Connects the GX3000S 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.