FCC ID: K6630283X3S
IC ID: 511B-30283X3S
GX5000S / GX5500S Operating Manual
11.3.1 Transmitting a DSC Distress Alert
NOTE
To be able to transmit a DSC Distress Alert an MMSI number must be programmed, refer to
section “11.2.2 Programming the MMSI.”
In order for your vessels location to be transmitted either connect a GPS to the
GX5000S/GX5500S (refer to section “6.3 ACCESSORY CABLE”) or manually input your
position (refer to section “11.11 MANUALLY INPUTTING GPS LOCATION”).
1. Lift the red spring loaded DISTRESS cover, then press and hold the [DISTRESS] key.
The “DISTRESS” menu will appear on the LCD and the radios display will count
down (5-4-3-2-1) and then transmit the Distress Alert. The backlight of the LCD and
keypad flashes while the radios display is countdown.
2. When the distress signal is sent, CH70 and the “” icon will appear on the LCD.
3. The transceiver will watch for a DSC acknowledgment transmission on CH70 and
also receive calls on CH16.
4. If an acknowledgement is received, select channel 16 and advise your distress
situation.
5. If no acknowledgment is received, the Distress Alert is repeated at 4 minute intervals
until a DSC acknowledgment is received.
6. When a DSC Distress acknowledgment is received, a distress alarm sounds and
channel 16 is automatically selected. The LCD shows the MMSI of the ship
responding to your distress.
RECEIVED ACK:
acknowledgment signal is received.
RECEIVED RLY ACK: relay acknowledgment signal is received from another vessel
or coast station.
8. To cancel the DSC Distress alarm signal from the speaker, press any key.
Transmitting a DSC Distress Alert with Nature of Distress.
The GX5000S/GX5500S is capable of transmitting a DSC Distress Alert with the following
“Nature of Distress” categories:
Undesignated, Fire, Flooding, Collision, Grounding, Capsizing, Sinking, Adrift,
Abandoning, Piracy, MOB
1. Lift the red spring loaded DISTRESS cover and press the [DISTRESS] key. The
“DISTRESS” menu will appear on the LCD.
2. Turn the CHANNEL selector knob to select the desired nature of distress category.
3. Press and hold the [DISTRESS] key. The radios display will count down (5-4-3-2-1)
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