User Manual

Page 37GX1600
9.3.1.1 Transmitting a DSC Distress Alert with Nature of Distress
The GX1600 is capable of transmitting a DSC Distress Alert with the following
“Nature of Distress” categories you may have:
Undesignated, Fire, Flooding, Collision, Grounding, Capsizing, Sinking,
Adrift, Abandoning, Piracy, MOB
1. Lift the red spring loaded DISTRESS cover and
press the key. The “DISTRESS ALERT” menu
will appear on the display.
2. Press the soft key, then press the /
key to select the desired nature of distress category.
3. Press and hold the key. The radios display
will count down (3-2-1) and then transmit the Dis-
tress Alert. The backlight of the display and keypad
flashes while the radios display is counting down.
4. When the distress signal is sent, the transceiver
watches for a transmission between CH16 and CH70
until an acknowledgment signal is received.
5. If no acknowledgment is received, the DSC distress
call is repeated in 4 minute intervals until an acknowl-
edgment is received.
6. When a DSC Distress acknowledgment is received,
a distress alarm sounds and channel 16 is auto-
matically selected. The display shows the MMSI of
the ship responding to your distress.
RECEIVED ACK: acknowledgment signal is re-
ceived.
RECEIVED RLY ACK: relay acknowledgment signal
is received from another ves-
sel or coast station.
7. Press the PTT button and state your name, vessel
name, number of persons on board and the distress
situation, then say over. wait for a reply from the
acknowledging ship.
8. To momentarily turn off the Distress alarm until the radio retransmits the
distress call, press the key.