Copyright © 2015 RCA Communications Systems
MRM400
TM
VHF Marine Two-Way Radio Instruction Manual
40
GEOGRAPHICAL AREA CALL
The Geographical Area Call function allows
you to transmit a DSC signal to all ships in a
geographical area.
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Receiving a Geographical Area Call
While monitoring Channel 70 and a
Geographical Area Call (for the area you are
in):
1. The emergency alarm or beeps sound
depending on the received category.
2. “DSC” appears and “RCV GEOGRAPHICAL”
scrolls at the Channel Comment Indicator.
3. Push any key to stop the beep.
4. Push [DSC] to change to the channel
specified by the calling station for voice
communication. Push any other key to ignore
the Geographical Area Call.
POSITION INDICATION CALL
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Positioning Instructions
When a GPS receiver is connected, the
transceiver indicates the current position data
in seconds of accuracy.
A NMEA0183 ver. 2.0 or 3.01 (sentence
formatters RMC, GGA, GNS, GLL) compatible
GPS receiver is required.
Push and hold [DSC] for 1 second to display
the current position.
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