[Elecraft] transmit and reciever alignment

[Roland & Elvie Whitsitt]

Thanks Don, Yup that did it.  I did use spectrogram.  When I added the 100
watt option and upgraded CPU's, something got out of kilter.  Now it's
better but everybody's CW note is just a hair raspy sounding.  But at least
I know I'm on the right track now.  THANKS!
Roland #3090
----- Original Message ----- 
From: "Don Wilhelm" <w3fpr at earthlink.net>
To: "Roland & Elvie Whitsitt" <n5vwn at sbcglobal.net>; "Tom Hammond"
<n0ss at earthlink.net>
Cc: "elecraft" <elecraft at mailman.qth.net>
Sent: Sunday, February 26, 2006 4:46 PM
Subject: RE: [Elecraft] transmit and reciever alignment


> Roland,
>
> It is most likely a filter alignment problem, but I will reserve final
> judgement until you answer some questions about how you are operating.
>
> Did you do your filter alignment with Spectrogram?  If not, the visual
> display of the filter passbands makes alignment a snap, but besides, if
you
> just set them 'by ear', it is difficult to find the filter center, so you
> may be off quite a bit.
>
> Second, were you listening with any filter other than FL1?  If the filters
> are aligned, this is not a problem, but if not aligned, that could be
> explaination of your problem.
>
> Try using FL1 for both transmit and receive and see if your listen
frequency
> is not also your transmit frequency - if it is not, then you have
something
> other than a filter alignment problem.  Don't forget to take into account
> the fact that the K2 display is offset on receive by the amount of your
set
> sidetone pitch, so the frequency on the K2 display should be your transmit
> frequency.  For this reason, it is important to listen to a signal at the
> same audio pitch as your sidetone pitch.  The K2 will indicate the carrier
> frequency of the signal you are listening to provided you are properly
tuned
> to zero-beat (same pitch as your sidetone).
>
> Also, make certain that you have all filters for CW on the same sideband -
> the BFO frequencies should be somewhat close to those shown in the chart
on
> page 89 of the K2 manual.  If you find yours way off, set then initially
to
> the values in the manual and then finish up the alignment with Spetrogram.
>
> For further info on the CAL FIL procedure, see my website article on K2
Dial
> Calibration at http://w3fpr.qrpradio.com - in addition to the info I have
> provided, I also have links to further info and Tom Hammond's Spectrogram
> writeups in the article.
>
> 73,
> Don W3FPR
>
> > -----Original Message-----
> >
> > Hi Tom and others who could help,
> >   You were very helpfull several months ago and I'm hoping you
> > can help me again.  I just installed the 100 watt option and I've
> > made two contacts on CW.  One on 80 meters and the other on 40
> > meters.  But I seem to be transmitting 1.01 khz down from my
> > recieve.  Is this a filter alignment problem or is there an
> > electrical problem like with a toroid or something.
> > Thanks,
> > Roland in Stockton
> >
>