[Elecraft] K2 Frequency Calibration

[David M. Katinsky]

I was wondering if it should be possible to tone match using the SPOT
feature on CW against a transmission from my KX1 which my frequency counter
claims is accurate...

-- 

"It takes brains. It's not like forward, where you can get away with
scoring and not play defense... On defense you have to be thinking."
---Chris Chelios

David M. Katinsky
dmk at pobox.com


> From: Hisashi T Fujinaka <htodd at twofifty.com>
> Date: Wed, 07 Jul 2004 14:21:40 -0700 (PDT)
> To: Don Wilhelm <w3fpr at arrl.net>
> Cc: elecraft at mailman.qth.net, "Linden,  Mike (BRC-Hes)"
> <Mike.Linden at boschrexroth-us.com>
> Subject: Re: [Elecraft] K2 Frequency Calibration
> 
> Speaking of zero beating, why not get an AM receiver tuned to WWV and
> zero beat the tone from the AM receiver to the SSB receiver? That way
> you can get within fractions of 1 Hz and it's a lot easier than watching
> a computer screen.
> 
> I found that I couldn't get the K2 spot on because of the calibration
> procedure. I got it darn close, though.
> 
> On Wed, 7 Jul 2004, Don Wilhelm wrote:
> 
>> Michael and all,
>> 
>> Yes, because the K2 has independent BFO adjustments for USB and LSB you must
>> know that both BFOs have been properly set before you can do 'tone matching'
>> to determine the correct dial setting.  It IS a good method to verify that
>> one has achieved correct calibration, but if the dial calibration is
>> suspect, attempting to get it correct by matching the LSB/USB tones may
>> prove to be an exercise in frustration.
>> 
>> If you need to set WWV right on (as when using it to set the reference
>> oscillator with the N6KR method), I recommend using Spectrogram to view the
>> frequency of the transmitted tones - they will alternate between 500 and 600
>> Hz in alternate minutes.  See the dial calibration article on my webpage
>> www.qsl.net/w3fpr for more detailed information.
>> 
>> 73,
>> Don W3FPR
>> 
>> ----- Original Message -----
>> 
>>>   I've found that using the frequency calibration method in which you
>> switch
>>> between LSB/USB when monitoring the tone (tuning for the point at which
>>> there is the least difference in the WWV tone between LSB and USB) on WWV
>> at
>>> 15 or 20 MHz works very well on my Kenwood TS-930S. Given the fact that
>> the
>>> K2 has independent BFO settings for LSB/USB, can this method be accurately
>>> used to check the K2's display frequency against WWV?
>>> 
>>>   Thanks, Michael N9BDF
> 
> -- 
> Hisashi T Fujinaka - htodd at twofifty.com
> BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte
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