[Elecraft] Changing CW pitch?
Don Wilhelm
donwilh at embarqmail.com
Tue Dec 6 08:41:59 EST 2016
Ed,
RIT will not help either, the pitch will still be at the peak of the
passband.
Now if you are only wanting to move it several tens of Hz, it will not
make much difference - in other words, a properly aligned 700Hz passband
centered at 580Hz will extend from 230Hz to 930Hz, but a 400Hz passband
will extend only from 380Hz to 780Hz, and for a 200Hz width, it is
likely to "fall off the edge".
73,
Don W3FPR
On 12/6/2016 4:31 AM, Eddy Avila wrote:
>
> Thanks everyone for your sage advice.....changing CW pitch sounds like
> a pain to me!!
>
>
> I think I'll use the RIT and see if it's worth all that trouble.
>
>
> 73's all
>
>
> ed ~ k6sdw
>
>
>
> ------------------------------------------------------------------------
> *From:* Don Wilhelm <donwilh at embarqmail.com>
> *Sent:* Monday, December 5, 2016 4:51 PM
> *To:* Eddy Avila; elecraft at mailman.qth.net
> *Subject:* Re: [Elecraft] Changing CW pitch?
> That is correct, AND if you have the KDSP2, you need to set those filter
> centers to your new sidetone pitch in the DSP menu settings.
>
> 73,
> Don W3FPR
>
> On 12/5/2016 7:48 PM, Cameron Francey wrote:
> >
> > And if I'm not mistaken if you also have the audio filter add-on
> > connected you need to adjust that to the new center frequency too.
> >
> > I actually recently just done the same task on my K2.
> >
> >
> > Cameron,
> >
> >
> > ------------------------------------------------------------------------
> > *From:* Elecraft <elecraft-bounces at mailman.qth.net> on behalf of Don
> > Wilhelm <donwilh at embarqmail.com>
> > *Sent:* Monday, December 5, 2016 4:34 PM
> > *To:* Eddy Avila; elecraft at mailman.qth.net
> > *Subject:* Re: [Elecraft] Changing CW pitch?
> > Ed,
> >
> > The short answer is YES.
> >
> > You can change the sidetone pitch, but that is only the sidetone that
> > you hear - and that setting also determines the transmit offset.
> >
> > Assuming your CW filters are currently centered at your 580Hz pitch, you
> > will need to move the center of the CW filters to whatever pitch you
> > choose for the sidetone. That is done with the CAL FIL procedure.
> > You will need the internal counter probe. It is easy if you use an
> > audio spectrum analyzer like Spectrogram and feed the K2 ANT input with
> > a broadband noise generator - you can see the peak of the filter
> passband.
> >
> > 73,
> > Don W3FPR
> >
> >
> > On 12/5/2016 7:15 PM, Eddy Avila wrote:
> > > I'm thinking of changing the CW pitch on my K2 from 580hz to 650hz,
> > maybe 700hz........my question, do I really need to realign the
> > filters? This is what I've read!
> > >
> > >
> > > I'm discovering I like a higher tone rather than lower CW tone. At
> > 67-years-old, go figure
> > >
> > >
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