K2 Frequency Calibration

[Linden, Mike (BRC-Hes)]

  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


PS  The "Amateur Radio Emergency Communications Consistency Act" (HR 1478)
and the "Amateur Radio Spectrum Protection Act" (HR 713 & S. 537) are in
Congress. Please contact your Congressmen to ask for their support of these
bills! See the following ARRL link for details:
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[Don Wilhelm-2]

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
>


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[Linden, Mike (BRC-Hes)]

Don,

  This is very useful information. Thanks!

  -Michael, N9BDF
   K2 #4137

-----Original Message-----
From: Don Wilhelm [mailto:[hidden email]]
Sent: Wednesday, July 07, 2004 2:35 PM
To: Linden, Mike (BRC-Hes); [hidden email]
Subject: Re: [Elecraft] K2 Frequency Calibration


X-BCN-RPD:<Error: Center is still not operational >



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
>

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[Hisashi T Fujinaka]

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 - [hidden email]
BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte
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[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
[hidden email]

> From: Hisashi T Fujinaka <[hidden email]>
> Date: Wed, 07 Jul 2004 14:21:40 -0700 (PDT)
> To: Don Wilhelm <[hidden email]>
> Cc: [hidden email], "Linden,  Mike (BRC-Hes)"
> <[hidden email]>
> 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 - [hidden email]
> BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte
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>
>

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[Stuart Rohre]

Isn't the tone alternation of WWV between 400 and 600 Hz?  It used to be.
-Stuart
K5KVH


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[Don Wilhelm-2]

Stuart,

Yes it used to be (a long time ago).  Check the newest information at their
website.  They do transmit a 440 Hz tone at times too I guess for those
musical folks who want to calibrate their tuning forks <G>.

73,
Don W3FPR

----- Original Message -----
From: "Stuart Rohre" <[hidden email]>
To: "Linden, Mike (BRC-Hes)" <[hidden email]>; "Don
Wilhelm" <[hidden email]>; <[hidden email]>
Sent: Wednesday, July 07, 2004 6:11 PM
Subject: Re: [Elecraft] K2 Frequency Calibration


> Isn't the tone alternation of WWV between 400 and 600 Hz?  It used to be.
> -Stuart
> K5KVH
>
>
>
>


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