Inline posting for consistency...

--- On Fri, 2/25/11, Joe Subich, W4TV <li...@subich.com> wrote:

> From: Joe Subich, W4TV <li...@subich.com>
> Subject: Re: [Elecraft] P3 Question
> To: "Wes Stewart" <n...@yahoo.com>
> Cc: "Elecraft Reflector" <elecraft@mailman.qth.net>
> Date: Friday, February 25, 2011, 9:39 AM
> 
> 
>  > The foregoing probably answers my own question which
> is this: will
>  > the P3 markers/cursors that show the A and B VFO
> frequencies account
>  > for the case of both RIT and XIT being engaged at the
> same time?
> 
> Since the P3 does not operate in transmit, XIT is a moot
> point but
> both the cursor and "current frequency" show the effect of
> RIT.

Fair enough.

> 
>  > A related question is why doesn't the K3 just report
> the actual
>  > displayed frequency when queried?
> 
> Because the displayed frequency is the VFO Frequency +/-
> RIT and
> RIT is reported in the IF "broadcast" or in response to
> RO.  It
> would be difficult for many computer applications if the
> "VFO"
> frequencies were jumping around between transmit and
> receive.

Well, if I do use split, my logging program (DXBase) has no problem logging 
both my (different) TX and RX frequencies.  But it does not log correctly if 
I'm using XIT, even though the displayed TX frequency might be the same in both 
cases.

If for example, I set my A VFO to 14.010 and set RIT/XIT to +1 KHz, and turn 
both on, the K3 will now display the frequency as 14.011.  To me that is the 
new "A" frequency, but it will still be reported as 14.010 via the interface.

To me it seems more logical to report to the outside world the displayed 
frequency, not some internal portion of that frequency.

Regards,

Wes

> 
> 73,
> 
>     ... Joe, W4TV
> 
> 
> On 2/25/2011 11:05 AM, Wes Stewart wrote:
> > When working DX stations that are operating split I
> much prefer to
> > use the transmit offset (XIT) function rather than
> using the
> > "Split/A/B" method.  This puts all of the needed
> controls together.
> >
> > Using my current panadapter setup, an SDR-IQ +
> SpectraVue, if I want
> > to see where my transmitter is with respect to QRM, I
> just tap the
> > RIT button to engage both RIT and XIT and the center
> of the display
> > now shows my TX freq with respect to other
> signals.  Unfortunately,
> > the K3 doesn't report the actual displayed frequency
> via the "FA"
> > command, which I assume is what SpectraVue uses, so
> the spectrum
> > display frequency axis still shows the non-shifted
> frequency.
> >
> > The foregoing probably answers my own question which
> is this: will
> > the P3 markers/cursors that show the A and B VFO
> frequencies account
> > for the case of both RIT and XIT being engaged at the
> same time?
> >
> > A related question is why doesn't the K3 just report
> the actual
> > displayed frequency when queried?
> >
> > Wes  N7WS
> >
> >
> >
> >
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