Internal RFI

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Internal RFI

Steve-7
Unplug your antenna or simply switch to null RX antenna, you will find several continuous wave signals on a band.  The strength can be up to S4. When you tune to the signal and click on (the big inductor on) KSYN3 board, you can even hear the sound on the speaker/phones.
 
Change the position of the TMP cables will reduce the signal strength, but might increase the strength on some other frequencies.

73,
Steve