3 dsc distress call – Standard Horizon MATRIX GX3000S User Manual
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GX3000S
11.3 DSC DISTRESS CALL
The GX3000S is capable of transmitting and receiving DSC Distress messages
to all DSC radios. The GX3000S may be connected to a GPS to also transmit
the Latitude, Longitude of the vessel.
11.3.1 Transmitting a DSC Distress Call
NOTE
To be able to transmit a DSC distress call an MMSI number must be
programmed, refer to section “11.2.2 Programming the MMSI.”
In order for your ships location to be transmitted a GPS must be connected to
the GX3000S, refer to section “8.3 ACCESSORY CABLE.”
1. Lift the red spring loaded DISTRESS cover and press the [DISTRESS] key.
The “
DISTRESS
” menu will appear on the LCD.
2. Press and hold the [DISTRESS] key. The radios dis-
play will count down (3-2-1) and then transmit the
Distress call.
3. When the distress signal is sent, CH70 and “
”
icon will appear on the LCD. After the message has
been sent, the radio will sound a Distress Alarm.
4. The transceiver will watch for a DSC acknowledg-
ment transmission on CH70 and also receive calls
on CH16.
5. If an acknowledgement is received, select channel
16 and advise your distress situation.
6. If no acknowledgment is received, the distress call is
repeated in 4 minute intervals until a DSC acknowl-
edgment is received.
7. When a DSC Distress acknowledgment is received,
a distress alarm sounds and channel 16 is automati-
cally selected. The LCD shows the MMSI of the ship
responding to your distress.
RECEIVED ACK: acknowledgment signal is received.
RECEIVED RLY: relay signal is received from another vessel or coast station.
8. To cancel the DSC distress alarm signal from the speaker, press any key.