[Elecraft] Re: Zero beat hint and why 800hz maximum?

[Don Wilhelm]

 From this discussion, it is good to find that there are others like me 
who have a difficult time with zero-beating at any pitch.  It is also 
interesting that those with good pitch recognition are mystified by the 
problems we encounter.
It is likely that we all can detect the close-in low pitched beat note 
between two signals when that beat note is 20 Hz or lower - the problem 
I have is getting close enough to create that low pitched beat.  I hear 
two tones, but whether the signal is higher or lower than the sidetone 
is often a mystery - sure, I can get them close with trial and error, 
but that takes time.  Once tuned closely, it is an easy matter to listen 
to that low pitched 3rd tone (the beat).  Thank goodness for zero beat 
detectors and Spectrogram displays for taking the mystery out of this 
procedure for those of us with 'tin ears'.

73,
Don W3FPR