K2 Frequency adjustment

[Nick G3RWF]

Got my K2 on the air on CW and SSB and many thanks to those who have helped me.
I now need to get the frequency reading accurately - cannot hear WWV here (today at least) so would appreciate advice on simple means of adjusting C22 accurately. Currently the K" reads 0.28 KHz high compared to my FT2000.
Second point - just installed NB - I seem to have more noise with the preamp than previously even when off. Does this observation ring any bells or is it my paranoid imagination?
Thanks again - esp to Elecraft who got a noise generator kit to me in 6 days over the Easter break - pretty good for Ca to UK. Helped a lot with filter adjustments.
73 Nick G3RWF
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[Karl-Heinz Kaatz, DF7KHK]

Hi Nick,
I think it's a problem to hear WWV in Europe. Look to RWM (Moscow) at 9.996.

72 de
'Karl'-Heinz, DF7KHK
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[David Pratt]

Nick - I used RWM on 9996.0kHz.  I adjusted C22 so that I got the same
tone of beat note when switching between USB and LSB and offsetting the
frequency display by, say, 500Hz on each side of 9996.0kHz.  Each time
you adjust C22 you need to go to the 7MHz band and do a CAL PLL.

73 de David G4DMP

In a recent message, Nick Henwood <[hidden email]> wrote ...
>I now need to get the frequency reading accurately - cannot hear WWV
>here (today at least) so would appreciate advice on simple means of
>adjusting C22 accurately. Currently the K" reads 0.28 KHz high compared
>to my FT2000.
--
David G4DMP
Leeds, England, UK
------


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[Don Wilhelm-3]

Nick,

For detailed instructions for achieving accurate K2 frequency readout,
look at my website (http://w3fpr.qrpradio.com) article on K2 Dial
Calibration.  There are references to other sources of information in
the article if you need additional information.

You may use any station that has a known frequency when setting C22.
The method for accurately setting C22 is in my article and also at the
Elecraft website Builder's Resource page.

Remember, the required order of things is:
1) Adjust C22 accurately
2) Run CAL PLL
3) Run CAL FIL and 'change' each BFO to force a write to EEPROM
Changing the order of events will not produce the desired results.


73,
Don W3FPR

Nick Henwood wrote:
> Got my K2 on the air on CW and SSB and many thanks to those who have helped me.
> I now need to get the frequency reading accurately - cannot hear WWV here (today at least) so would appreciate advice on simple means of adjusting C22 accurately. Currently the K" reads 0.28 KHz high compared to my FT2000.
> Second point - just installed NB - I seem to have more noise with the preamp than previously even when off. Does this observation ring any bells or is it my paranoid imagination?
> Thanks again - esp to Elecraft who got a noise generator kit to me in 6 days over the Easter break - pretty good for Ca to UK. Helped a lot with filter adjustments.
> 73 Nick G3RWF
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[Tom Hammond-3]

Nick:

>Got my K2 on the air on CW and SSB and many thanks to those who have
>helped me.
>
>I now need to get the frequency reading accurately - cannot hear WWV
>here (today at least) so would appreciate advice on simple means of
>adjusting C22 accurately. Currently the K" reads 0.28 KHz high
>compared to my FT2000.
>Second point - just installed NB - I seem to have more noise with
>the preamp than previously even when off. Does this observation ring
>any bells or is it my paranoid imagination?
>
>Thanks again - esp to Elecraft who got a noise generator kit to me
>in 6 days over the Easter break - pretty good for Ca to UK. Helped a
>lot with filter adjustments.

If your TS-2000 is capable of generating RF output at 10.000MHz, you
now have your own BUILT-IN WWV!!!  Turn the POWER on the TS-2000 to
ZERO or as far down as it can go. Set the TS-2000 to TX (AM mode if
available) on 10.000.00 MHz. Transmit into a dummyload, and you're
good to go!  Follow the docs for aligning to WWV at 10MHz.

If that doesn't work, but IF the TS-2000 offers a 100kHz (or 1MHz)
xtal cal. use it as a sign gen, with a short 'sense' antenna
connected to the K2 and capacitively coupled to the TS-2000's ANT
jack (should be enough for the K2 to hear the xtal calib.  Still a
source of accurate 10MHz signal.

Cheers,

Tom Hammond    N0SS

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