Icom IC-M502 Instruction Manual page 29

Receiving a geographical area call
While monitoring channel 70 and a geographical area call (for
the area you are in) is received:
➥ Emergency alarm or beeps sound depending on the re-
ceived category.
➥ "Geographic Distress," "Geographic Safety," "Geographic
Urgency" or "Geographic Routine" appears in the display;
then, the channel specified by the calling station is auto-
matically selected for voice communications.
➥ Monitor the selected channel for an announcement from
the calling ship.
When no GPS receiver is connected or if there is a prob-
lem with the connected receiver, all geographical area calls
are received, regardless of your position.
Receiving a position reply call
While monitoring channel 70 and a position reply call (for the
area you are in) is received:
➥ "Received POS" appears in the display.
When no GPS receiver is connected or if there is a prob-
lem with the connected receiver, all geographical area calls
are received, regardless of your position.
Receiving a position request call
While monitoring channel 70 and a position request call (for
the area you are in) is received:
➥ "POS request" appears in the display.
➥ Push [DSC/ENT] to reply to the call.
When no GPS receiver is connected or if there is a prob-
lem with the connected receiver, all geographical area calls
are received, regardless of your position.
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DSC OPERATION
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