User manual

Chapter 3: Service & maintenance
50 Maintenance
DSC self test
To run a control routine DSC self test, do as follows:
1. Press the soft key SETUP. If it is not in the display, press the soft key
MORE until SETUP appears.
2. Press the arrow soft key or to advance to DSC SETUP.
3. Turn the selector knob to select DSC Self Test. Press and turn the
selector knob to select RUN.
The test will check the ability to encode/decode DSC signalling 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.
Press the soft key OK to
acknowledge the test result and
resume normal operation.
Important
If the DSC loopback test fails, this indicates the DSC
functionality does not work correctly — including the ability
to send a DISTRESS message.
Contact your dealer immediately for further advice.