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I have no receive,yet. But I have transmit,BUT,I have a carrier,but no modulation. I am having fights with the transmit frequency,I just cannot get it to 27.185, the channel I am on. This is completely tuned,3 times. I cannot also get the 3.20 V on the VCO, it is stuck at .873 V, and it will not adjust,it just stays there. For now,this is all the issues,so far that extra channel board is ,or seems, not to interfere with anything,maybe the transmit frequency? I will try again,maybe I will throw the generator on,and try to get it down,that's the issue,I cannot get it down,now I will have to get it up,LOL,the frequency,,,,,that's all I have for now. Thanks a bunch,talk soon,going to take a look at Transistor 21, see is it kicking 8Volts from center pin? That will mess up RX & TX, as I am told.Talk soon.