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UCR 401 issue


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Hi everyone,


Today I tried to put an old UCR 401 to use again after a while and faced the following issue. The pilot tone indicator keeps blinkIng and the CHECK FREQ appears as well even though the RF level indicator is full. No audio. 


I've tried this with a smqv and a lma transmitter. I've doubled checked the frequency, tried different ones, but still nothing. Compatibility mode is at 400 which should be fine for both transmitters. Am I doing something wrong or is the unity really defective ?



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