Re: #ubitx-help Strong Audio Tones in and outside audio receive passband #ubitx-help

Jerry Gaffke

Wrong.     This part that  reads
    <<   second LO always at 45-12mhz
should say
   second LO is at 45-12=33mhz for LSB  and  45+12=57mhz for USB

Leaving the second LO parked at 57mhz will likely give fewer birdies.


On Fri, Feb 2, 2018 at 11:48 pm, Jerry Gaffke wrote:
Currently the uBitx BFO is always below the crystal filter to avoid the tones, second LO always at 45-12mhz
Would be nice to  be able to switch sidebands by flipping the BFO to high or low side.
Could then have the second LO at either 45+12 or 45-12mhz, whichever gives fewer birdies
and other such artifacts. 

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