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  1. J

    Superstar 121: No FM TX Audio

    Hi there. Bear with me, as I am quite new to all of this. :) I've acquired a second-hand Superstar 121 radio, (PCB EPT120113Z). While AM TX audio works perfectly fine, FM TX audio is pretty much non-existant. While using a spectrum analyzer, I adjusted the FM deviation (VR5) with no change...