Chapter 5: Digital Selective Calling (DSC) 33
Using the Microphone Keys to Make Selections
The examples in this chapter describe how to make menu and character
selections using the CH knob on the main unit. However, you can also
press the microphone UP/ DOWN keys to make selections, and then
press the microphone HI/LO key to accept.
Note: To conform with regulations of the Basel Agreement for radiotele-
phone service on inland waterways, DSC functions are disabled when ATIS
is active. Please see ATIS Function on page 79.
DISTRESS Sends out the position and time information from the input NMEA data
along with your MMSI number. This digital information lets other ships
and shore stations equipped with appropriate DSC equipment know
where you are and that you are in a Distress situation.
POSITION
REQUEST
This option enables you to request GPS position information from any ves-
sel for which an MMSI number is known. You can specify the target vessel
either by selecting it from your MMSI phonebook or by manually entering
its MMSI number. You can also be requested to send out your position to
someone else.
RX CALL LOG A list of all received DSC Call types (except Distress calls) by number and
time of call. The log maintains up to 20 calls; the earliest call is stored at
the end of the list. After more than 20 calls have been received, the call at
the end of the list is automatically overwritten.
NOTE: You can place a call directly from the DSC Call Log to the station
that is currently displayed. You can also add the displayed station to the
DSC Phonebook.
DISTRESS LOG Lists all stored Distress Calls by number and time of call. The log maintains
up to 10 calls; the earliest call is stored at the end of the list. After more
than 10 Distress Calls have been received, the call at the end of the list is
automatically overwritten. An Individual call can be placed to the selected
MMSI/NAME in the log.
NOTE: Received Distress Relay calls are also stored in the Distress Log.
DSC Call Type Description
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