Troubleshooting
The 2018 tuning motor does not run briefly after switching on the transceiver:-
¾
Check all cables.
¾
Check that DC is available to the ATU by using a multimeter on the pins of the connector on
the DC lead.
The 2018 antenna tuning motor runs but a tune failure signal occurs:-
¾
Check that the selected channel is in the range 3.9 to 12.5 MHz.
¾
Check that the transceiver is producing correct output power when initiating a tune
sequence. The input power must be between 2 W and 10 W for the ATU to be able to tune.
¾
Check that all heavy ring tag connections on the roof rack and ATU are securely fastened.
¾
If the unit still does not tune, unplug the 6 pin control cable, undo the four lid screws, and
remove the lid, ensuring no water or other contaminants fall inside.
¾
Check all connectors are plugged into their sockets on the PCB Assembly.
¾
Replace the lid, checking the condition of the lid seal before securing the screws.
¾
The
Important
:- The high current connection must be maintained in good clean condition. When
transmitting, it can carry up to 20 amperes of RF current
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