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108
99,99,99,99,90
118
126
126 126 126 126 126 126
117
86
The MF/HF distress call transmits the following information:
112,112
99,99,99,99,90
107
99,99,99,99,99
88,88
109
127
48
Send custom DSC
The Send custom DSC mode enables the test box to send a custom-made DSC call composed
in advance on a PC. For the purpose of composing, a free PC software TEST BOX MANAGER
can be downloaded from Danphone's website. See page 41.
Once downloaded, connect your PC to the test box via the USB cable supplied. Follow the
instructions of how to compose a new custom-made DSC call and to transfer it to the test box
accordingly.
To make the test box transmit the custom-made call, select Send custom DSC on the test box
and press OK. Then, select TFC or MF/HF respectively.
With TFC, select frequency and press OK. Select Normal or Reduced output power. Usually,
Normal is recommended to send the call.
With MF/HF, select frequency and press OK. Select Normal or Reduced output power. Usually,
Normal is recommended to send the 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.
If there is no custom made call in the test box, the display will say No custom data.
Signal level
This mode can be used to check the signal strength level of the received signal at 2187.5 kHz.
The level figure is used to indicate if the signal strength is sufficient to ensure proper radio
communication between the test box and the radio during the following tests.
Category - safety
Self identification = Testbox "MMSI No".
First telecommand
Second telecommand
Frequency or channel 126 transmitted six times
Ack. RQ End of sequence
Modulus-2 checksum
Format specifier - Distress call
Address - Testbox "MMSI No".
Category - Undesignated distress
Co-ordinates - 99 99 99 99 99 at test.
Time - 88 88 at test.
First telecommand
EOS - End of sequence
Modulus-2 checksum
22
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