Folks have been reasonably certain of that on Bitx rigs for about 15 years now. ?A simple fix for the kerchunk into the headphones when entering receive was recently posted here, and there have been many others. ?The transmit kerchunk you describe has not been addressed so much. ?Easier to fix now that we have the Raduino, could shut down the Si5351 VFO buffer at CLK2 until that kerchunk is over with. ?Though 60ms is a rather long time, if using VOX that timeout I'm suggesting could easily clip off something significant. ?Let us know when you find a better fix.
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On Wed, May 31, 2017 at 02:07 pm, Bob wrote:
the burst of RF is coming directly through the balanced mixer which is unbalanced for about 60 mS due to the microphone amplifier stage being switched on for transmit.
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