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P3 VFO B Tracking

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James Balls

P3 VFO B Tracking

All

Not really been keeping up on the reflector, just acquired a P3 but cannot find any way of tracking VFO B

For my use this is paramount, I assumed this could be done with the P3, am I wrong?

If I'm wrong could this be put in the next firmware update please?

Everything else on the P3 is as expected and very good.

Thanks

Jim
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James Balls

P3 VFO B Tracking

James Balls

Re: P3 VFO B Tracking

Maybe a better explanation would help :-

OK here's the senario.

VFO A Main run VFO on say RTTY contest, want to tune to find multi's with VFO B but using a narrow display width on the P3 (ie 25khz), VFO B is out of the display very quickly.

Now if you could track the frequency of VFO B on the panadapter I could see upto 200khz (+ or - 100khz of VFO A) with VFO B.

So in essence I know the P3 takes the IF from VFO A but at 200khz bandwidth you could track at a high resolution (narrow frequency, say + or - 12khz) of the VFO B frequency if it allowed us to track with the VFO B frequency.

For me this would be very useful on single op and Big nob Little nob operation (2 operators) as my whole system is set up for the sub VFO to be the multi chaser and the main VFO for running.

So can this be done or is it a please mr elecraft add this function to the P3?

This comming weekend is BARTG RTTY and I'd love to use it this way ???

Jim

> From: [hidden email]
> To: [hidden email]
> Date: Mon, 17 Jan 2011 10:26:32 +0000
> Subject: [Elecraft] P3 VFO B Tracking
>
>
>
>
> All
>
> Not really been keeping up on the reflector, just acquired a P3 but cannot find any way of tracking VFO B
>
> For my use this is paramount, I assumed this could be done with the P3, am I wrong?
>
> If I'm wrong could this be put in the next firmware update please?
>
> Everything else on the P3 is as expected and very good.
>
> Thanks
>
> Jim
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
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Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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James Balls

Re: P3 VFO B Tracking

Brian

I've played with a softrock and rocky but it never really did it for me, maybe i didn't set it up correctly? It never seems very sensitive to me even with the IF out mod on the k3, Are you using a preamp / filter on the softrock?

Anyway the idea of the P3 was a good one, just hope they can add this feature in future release.

Jim

> Date: Mon, 17 Jan 2011 14:02:21 +0000
> From: [hidden email]
> To: [hidden email]
> Subject: Re: [Elecraft] P3 VFO B Tracking
>
> Jim,
>
> Maybe the P3 is the wrong tool (for now). I use ROCKY (free)/SDR on the
> subrx as a "pan adapter". The RTTY segments are not that wide anyhow
> you need at most 50 KHz. The display width is readily and infinitely
> variable. There also is no baseline jumping or peak/averaging which has
> to be fooled with.
>
> KISS. Actually it is KICS for keep it cheap and simple.
>
> It is easy to recognize RTTY signals and also gaps where one can CQ.
>
> The real problem is in using the K3, i.e. switching of TX between
> A/B/SPLIT/UNSPLIT without messing up. One would almost have to use A/B
> but that would would put the subrx and panadapter on the old A frequency.
>
> 73 de Brian/K3KO
>
> On 1/17/2011 12:04, James Balls wrote:
> >
> > Maybe a better explanation would help :-
> >
> > OK here's the senario.
> >
> > VFO A Main run VFO on say RTTY contest, want to tune to find multi's with VFO B but using a narrow display width on the P3 (ie 25khz), VFO B is out of the display very quickly.
> >
> > Now if you could track the frequency of VFO B on the panadapter I could see upto 200khz (+ or - 100khz of VFO A) with VFO B.
> >
> > So in essence I know the P3 takes the IF from VFO A but at 200khz bandwidth you could track at a high resolution (narrow frequency, say + or - 12khz) of the VFO B frequency if it allowed us to track with the VFO B frequency.
> >
> > For me this would be very useful on single op and Big nob Little nob operation (2 operators) as my whole system is set up for the sub VFO to be the multi chaser and the main VFO for running.
> >
> > So can this be done or is it a please mr elecraft add this function to the P3?
> >
> > This comming weekend is BARTG RTTY and I'd love to use it this way ???
> >
> > Jim
> >
> >
> >> From: [hidden email]
> >> To: [hidden email]
> >> Date: Mon, 17 Jan 2011 10:26:32 +0000
> >> Subject: [Elecraft] P3 VFO B Tracking
> >>
> >>
> >>
> >>
> >> All
> >>
> >> Not really been keeping up on the reflector, just acquired a P3 but cannot find any way of tracking VFO B
> >>
> >> For my use this is paramount, I assumed this could be done with the P3, am I wrong?
> >>
> >> If I'm wrong could this be put in the next firmware update please?
> >>
> >> Everything else on the P3 is as expected and very good.
> >>
> >> Thanks
> >>
> >> Jim
> >> ______________________________________________________________
> >> Elecraft mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:[hidden email]
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
> >
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>
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>

Don Wilhelm-4

Re: P3 VFO B Tracking

In reply to this post by James Balls

Jim,

I am not sure what you mean by "track".

The P3 will show the VFO B frequency with the magenta cursor. See
"Using Cursors" in the P3 manual.

If you mean -- display the output of the subRX, that is not possible
without a mod to the SubRX - there is no IF output from the sub.

73,
Don W3FPR

On 1/17/2011 1:44 AM, Jim Balls wrote:

> All
>
> Not really been keeping up on the reflector, just acquired a P3 but cannot find any way of tracking VFO B
>
> For my use this is paramount, I assumed this could be done with the P3, am I wrong?
>
> If I'm wrong could this be put in the next firmware update please?
>
> Everything else on the P3 is as expected and very good.
>
>

Bill W4ZV

Re: P3 VFO B Tracking

In reply to this post by James Balls

James Balls wrote

Not really been keeping up on the reflector, just acquired a P3 but cannot find any way of tracking VFO B

IF OUT uses VFO A so a hardware mod must be added for VFO B in the KRX3 to have an IF OUT. N2QT has described a mod to do this below:

http://groups.yahoo.com/group/Elecraft_K3/files/KRX3_IF_Out/

You may need to join the Yahoo Groups Elecraft_K3 list to view the above. If you're handy with a soldering iron, you might be able to do this before the weekend.

73, Bill