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4. Press the [ENT] key to open the CALL TYPE menu.
***
Send message
***
TO SHIP :
001234567
COM. TYPE : TELEPHONE
COM. FREQ : CH12034
CALL TYPE : ABLE
ACKNOWLEDGEMENT
DSC FREQ: 1
2577.5 KHZ
GO TO ALL VIEW
ABLE
UNABLE
5. Select UNABLE and press the [ENT] key.
6. Press the [ENT] key. The display then prompts you for the reason you are unable to
acknowledge.
***
Send message
***
DSC FREQ :
12,577.5 KHZ
CALL TYPE : UNABLE
REASON : NO REASON
TO SHIP :
001234567
ACKNOWLEDGEMENT
GIVEN
NO REASON
BUSY
EQUIP DISABLED
MODE NOT USABLE
CH NOT USABLE
7. Select suitable reason and press the [ENT] key.
8. Press the [ENT] key to open the DSC FREQ menu. Select appropriate frequency and press
the [ENT] key. The display changes as below.
***
Send message
***
DSC FREQ :
12577.5 KHZ
GO TO ALL VIEW
CALL TYPE : UNABLE
REASON : CHANNEL
TO SHIP : 121234567
ACKNOWLEDGEMENT
NOT USABLE
9. Press the [CALL] key to send the call. The display shows "Unable acknowledge call in
progress!" while the call is being sent.
Unable acknowledge
call in progress!
TIME TO GO: 6S
DSC FREQ :
12577.5 KHZ
ROUTINE
TO SHIP:
121234567
CHANNEL NOT USABLE
10. The timer counts down the time remaining until the message is sent (transmission time:
about 7 sec.). The DSC standby screen automatically appears upon completion of
transmission.