[Elecraft] Zero-beating on CW

[Don Wilhelm]

Ted,

Is the value you have set in PITCH the same as the audio frequency you 
are listening at?  If so, the SPOT feature should be quite accurate.
Actually, between the CWT indicator and the Auto-Spot feature of the K3, 
it is easy to get within a Hz or two.  Auto-Spot may not work well in 
very crowded band conditions unless you narrow the filter width.  Also, 
you should be tuned within 20 Hz or less for Auto-Spot to work effectively.

If you are matching the tones with your ears, unless you have perfect 
pitch, adjust the amplitude of the sidetone and the signal to be near 
equal and listen for the WOW, WOW, WOW tone to slow to zero.  That will 
assure you of zero beat.

73,
Don W3FPR

On 10/5/2014 6:44 AM, Ted Edwards W3TB wrote:
> I have never been convinced of being accurate on zero-beat on my K3.
> With previous radio units, I would zero-beat by matching the tone of the
> received station with my own keying side-tone.  But it does not seem
> accurate on the K3.
>
> So the question:  How would I determine that my offset and side tone would
> match up so that I am really zero-beated when I think I am.
>
> Thanks ahead of time.
>