¡°Replacement frequency source¡±.
So i picked up one of those NanoVNA¡¯s on amazon and it can generate a constant signal on any given frequency. ?I¡¯m wondering how I can use that to set the BFO / calibration.
I have yet to find a concise YouTube video or guide on how one actually knows when the BFO and calibration are both set correctly.
my guess is for BFO I¡¯m looking for the setting where the ¡°tone¡± generated by VNA goes away¡ª meaning the frequency on the dial is now sitting right on top of what would be the carrier. ?But I could be completely wrong.
but seriously, the descriptions of ¡°zero beat¡± I read online don¡¯t click with me... ? this stuff is all just math... surely somebody can describe it that way.
