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18 VHF 100/200 Series Owner’s Manual
Digital Selective Calling
Receiving a distress call acknowledgement:
1. When the radio receives a distress call acknowledgment, the radio beeps and the screen
displays “DISTRESS ACK”. Press any key to turn off the beeping.
2. Select ] to view additional information. If the MMSI of the station transmitting the
ACK signal is an entry in your directory, the name associated with the MMSI number is
indicated on the screen. If not, the screen displays the MMSI number.
3. Select ACCEPT.
Stopping Automatic Retransmission of Distress Calls
To stop the radio from automatically retransmitting a distress call, select CANCEL.
The radio remains tuned to Channel 16. Selecting CANCEL does not communicate to
other stations that you no longer have an emergency. Selecting CANCEL only stops the
automatic repetition of the call. For information on revoking a distress call, see below.
Revoking a Distress Call
A DSC distress call is not transmitted until you press and hold the DISTRESS key for at
least three seconds. However, if you inadvertently make a DSC distress call or are no longer
in distress, it is important to cancel the call immediately by transmitting a voice message to
All Stations on Channel 16.
1. Select CANCEL to cancel the distress alert.
2. Press the 16/9 key. The radio tunes to the Channel 16.
3. Press the PTT key on the microphone or handset and speak a voice message to cancel
the false distress alert. The following is an example of an appropriate cancellation
message:
“All Stations, All Stations, All Stations, this is ________ (vessel name), MMSI number
________, Position ________ North (or South), ________ West (or East). Cancel my
distress alert of ________ (date and time). This is ________ (vessel name), MMSI number
________, Out.”
Placing Calls
Placing Individual Calls
1. Press the DSC key.
2. Select INDIVIDUAL.
3. Select from the following options to select the place from which the MMSI number is
retrieved:
MANUAL—a screen is displayed that allows you to enter the MMSI number manually.
Select a number and move to the next character. When you have entered the correct
MMSI number, select ACCEPT.
DIRECTORY—the directory is displayed. Select an entry.
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