Chapter 3: Service & maintenance
Maintenance 55
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The test will check the ability to encode/decode DSC signaling on RF
level. The radio will automatically transmit a DSC safety test call to its
own MMSI number without enabling the transmitter power amplifier. In
parallel the radio decodes and compares the received call to be the
same as the transmitted.
The display shows the result of the test.
4. Press the soft key OK to acknowledge the
test result and resume normal operation.
Temperature specifications
Normal operating temperature: 0°C to +40°C
Extreme operating temperature: -15°C to +55°C
If the DSC loopback test fails, this indicates the DSC
functionality does not work correctly — including the ability
to send or receive a Distress message.
Contact your dealer immediately for further advice.
The Cobham Test station can be called if physical location and
weather permits.
Select soft-key Call. Change Type to Safety Test. Input MMSI:
219015591, select appropriate band and press soft-key Send.
The test station is a scanning type and may be busy replying on
another band. Retransmit the message if not answered in 60
seconds.
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