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To receive a position request:
1. The alarm will sound and P1 will be displayed on the screen in big
digits. The MMSI directory location will be shown next to it, in small
digits.
2. To send your position, press the
CALL key.
3. To ignore the position request, press the
16/9 key to silence the
alarm, then press it again to return to the main screen.
Priority Channel (16/9)
The
16/9 key is used to switch priority channels. When you first turn on
the radio, its default priority channel is Ch. 16. To switch priority
channels, hold down the
16/9 key for a few seconds until the priority
channel switches to the other channel. This is particularly useful when
you want to make a non-DSC call and Ch. 16 is receiving a lot of
transmission traffic. The
16/9 key also allows you to exit various opera-
tion modes, ignore incoming calls and cancel outgoing calls.
With a quick press of the 16/9 key the priority channel immediately is
selected with high (25W) transmission power. Press the
16/9 key again
and it selects the last used channel.
PTT (Push To Talk)
This key is on the microphone. Press and hold it down to send a trans-
mission. There is a 5-minute maximum transmission timer, per FCC
regulations.
Scan
There are three primary scanning modes,
ALLSCAN, MEMORY SCAN, and
PRIORITY SCAN.