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Send DSC
In the Send DSC mode, the test box will transmit a DSC call for you to check on the DSC
receiver accordingly.
It is a requirement that the MMSI number registered in the test box is identical with the MMSI of
the radio to be tested. Please check and change number, if required, using the Edit ship's MMSI
menu. See Page 12.
With selective calls, connect the telescopic VHF antenna to RF OUT and use this setup:
With distress calls, it is important to use a coax cable for the connection between the test box
and the DSC receiver. This will prevent other ship stations to be alerted.
Use this setup with distress calls:
Select Send DSC and press OK. The DSC frequency will appear in the display. Press OK again
and select Dis to send a distress call or Sele to send a selective call.
Following the DSC call, the test box will display Received status. Press OK if the call was
successfully received. Press Fail if the call was not well received. The answer will be stored in
the test box memory for your test report.
The selective call transmits the following information:
120,120
21,95,57,62,40
100
99,99,99,99,90
100
126
90 0 6 90 0 6
117
76
The distress call transmits the following information:
112, 112
99,99,99,99,90
107
Format specifier - individual call.
Address - 2195576240
Category - Routine
Self-identification = Testbox "MMSI no".
First telecommand
Second telecommand
Frequency or channel
Ack. RQ - End of sequence
Modulus-2 checksum
Format specifier - Distress call
Testbox "MMSI no".
Category - Undesignated distress
DSC RECEIVER
ANT.
DSC RECEIVER
ANT.
14
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