Standard Horizon Gx5500s - Manual (Page 72)

GX5500S Page 72
[DW(IC)] Key
Watches for a transmission on CH16 and another selected channel until
either signal is received. (Dual watch)
Secondary use
Press and hold [DW(IC)] key, intercom operation will operate between
radio and RAM Mic.
[NAV] Key
Press this key, when connected to the GPS receiver to show GPS position
data (Lat/Lon) and Time on the display of the RAM+.
Secondary use
Press and hold [NAV] key to access PA/FOG function menu.
NOTE
When in PA or FOG mode the GX5500S will receive on the last
selected VHF channel before entering into the PA or FOG mode and
receive DSC calls.
[WX] Key
Immediately recalls the previously selected NOAA weather channel from
any channel location.
Secondary use
Holding down the [16/9] key while pressing the [WX] key changes the mode
from USA to International or Canadian.
[DISTRESS] KEY
Used to send a DSC Distress Call. To send the distress call:
1. Lift the red rubber cover.
2. Press and hold the Red button. The RAM+ display will
count down (5-4-3-2-1) and then transmit the Distress
call.
3. When the distress signal is sent, CH70 and “TX” icon
will appear on the LCD. After the message has been
sent, the radio will sound a Distress Alarm.
4. The transceiver “shadow-watches” for a transmission
on CH16 or CH70 until an acknowledgment signal is
received. “DISTRESS” and “WAITING” will appear on
the LCD.
5. 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.