[Elecraft] Display frequency calibration

[Jack Berry]

Thanks to everyone who responded! I'm glad I asked the question, I don't remember seeing this topic covered in the last year, may be wrong, but I sure learned some great techniques.
 
Got it all working, checking one technique against the other including using CW/CW reverse and Auto spot as in the manual.

God Bless & Best 73!
Jack - WE5ST
 

________________________________
 From: Don Wilhelm <w3fpr at embarqmail.com>
To: K7WIA <emoss98133 at msn.com> 
Cc: elecraft at mailman.qth.net 
Sent: Friday, October 5, 2012 7:00 AM
Subject: Re: [Elecraft] Display frequency calibration
  
Zero-beat is *not* zero frequency, so zero beat can be heard even when 
the audio response drops off in the lower range.

When there are two tones closely spaced in frequency, they will produce 
a third tone which is teh difference frequency between the tones.  That 
third tone will modulate the amplitude of the other two tones - sort of 
a wow-wow-wow type sound.  It is not unique to radio, it happens with 
musical instruments too.  Those who have tuned a stringed instrument 
should be familiar with zero beat.

Zero beat is the point where the wow-wow-wow sound is as slow as you can 
get it.

73,
Don W3FPR
On 10/5/2012 12:46 AM, K7WIA wrote:
> Just another note:    My K3 will not produce a audio tone below 200 cycles in
> the speaker.. ( could be my ears) so finding a zero beat is impossible as I
> could be off that much above or below WWV trying to callibrate that way.....
>
>

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