[Elecraft] beat freq method

[Don Wilhelm]

  If your tone perception needs assistance, try using an audio spectrum 
analyzer on your computer - I use Spectrogram (download from Tom 
Hammond's website www.n0ss.net), but others like Specravue or Spectrum 
Lab will work just as well.

Tune in WWV - make certain you are tuned to the carrier - use CW mode 
(you will not be able to understand the voice in CW mode), and adjust 
the VFO so the carrier is quite near the audio pitch of your sidetone.  
Now turn on the sidetone, and adjust the AF gain so the sidetone level 
is about the same as the tuned carrier.  You will see both tones on the 
audio Spectral display - when they are close to each other, listen for 
the 3rd tone.  Its pitch will be the difference between the other two 
and results in a slow rising and falling in amplitude of the other two 
tones.  When that rising and falling slows to zero, that is zero beat.

Once you know what it sounds like, do the Ref Cal as indicated in the 
manual.

73,
Don W3FPR

On 3/28/2011 1:31 PM, jrstorms wrote:
> Trying to set the freq cal for the reference using method 2 since I do not
> have a freq counter.  I may be tone deaf or something but I am not sure what
> the beat-freq sounds like.  Wish someone would post or send a sound file
> demonstrating the beat freq when off, close and good sounds like.  I tried
> setting it on 15mhz and thought I was close but when listening to WWV on
> 10mhz had to go down 300 hz to understand the voice transmission.  Also
> 15mhz voice was "fuzzy" until I tuned off freq about 100hz.  Guess I am
> confused at this point.  I do understand that this really just adjusts vfo's
> so when at band edges I do not go out of band.  However when using DX spots
> with N3FJP auto tune clicks I am off freq.  Have to dial around to get clear
> signal so if I don't then they do not hear my calls well.  Am sending this
> message to K3 support a well but appreciate any responses from the
> community.
>
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