JRC JSS-2250, Instruction Manual

Page: 102 / 220

Operation
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4
4 Receiving safety calls
When receiving a safety call from a coast station or another ship station, the message is
displayed immediately. Then treat the message according to the type as below.
(1) Receiving an individual call
(Type: Radiotelephone or Telex)
This procedure is identical to the case of a
routine call. However the screen shown at
right will be displayed with the alarm.
The example message contains the following
information.
- Message type: Individual call
- Caller's MMSI: 123456789
- Communication mode: Radiotelephone
- Work frequency: Tx 4125.0 kHz
Rx 4125.0 kHz
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Sequence process: ACK RQ
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Reception frequency: 4207.5 kHz
(2) Receiving an individual call
(Type: Position request)
■
Procedure
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The screen at right is displayed, and the
ALM lamp blinks and the alarm grows
louder gradually.
The example message contains the following
information.
- Message type: Individual call
- Caller's MMSI: 123456789
- Purpose of call: Position request
- Sequence process: ACK RQ
- Reception frequency: 16804.5 kHz
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Press the CANCEL key or ENT to stop
the alarm, and the screen at right is
displayed.
When the Auto ACK is set to on and
the status display is displayed, the
acknowledgement is automatically
sent upon receiving a call, without
the notification shown at right.
Note Note