Rear Panel - Standard Horizon GX2400GPS Owner's Manual

Microphone
The internal microphone transmits your voice and reduces background
noise using Clear Voice Noise Reduction Technology.
When transmitting, position the microphone about 2 cm away from your
mouth. Speak slowly and clearly into the microphone.
Microphone speaker
Audio heard through internal radio speaker is heard through the speaker
microphone.

7.3 REAR PANEL

①
②
VHF ANT Jack (VHF antenna jack)
Connects an antenna to the transceiver. Use a marine VHF antenna with
an impedance of 50 ohms.
GPS ANT Connector
Connects the optional SCU-38 External GPS Antenna.
NMEA 2K Connector
Connects to the NMEA 2000 network.
GND Terminal (Ground Terminal)
Connects the transceiver to ships ground, for safe and optimum performance.
Use the screw supplied with the transceiver only.
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③ ④
⑨
⑥ ⑦ ⑧
⑤