[Elecraft] p3 Tap to QSY in Data A mode

[Alan Bloom]

Hi Jim,

AFSK A mode on the K3 assumes you are running FSK.  The VFO frequency is
the frequency of the mark tone, which is 170 Hz / 2 = 85 Hz from the
center of the filter passband.

Alan N1AL


On Tue, 2011-02-08 at 19:23 +0000, Jim Balls wrote:
> Hi Alan
> 
> Not in PSK D mode as we were running PSK65 so in AFSK A mode
> 
> So if it has an offset programmed in for PSK D mode then maybe AFSK A mode 
> has been an oversight
> 
> Anyone at Elecraft care to comment, I think AFSK A mode needs an offset of 
> 1500hz in the P3 so you click and tune to the centre of the pass band, as 
> per CW, and PSK D mode.
> 
> Jim M0CKE
> 
> -----Original Message----- 
> From: Alan Bloom
> Sent: Monday, February 07, 2011 6:46 PM
> To: James Balls
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] p3 Tap to QSY in Data A mode
> 
> Hi Jim,
> 
> I'm not seeing the problem.  With the K3 set up for PSK D data mode and
> normalized bandwidth and offset, if I click-to-QSY on a carrier with the
> P3, the carrier ends up right in the center of the K3 passband.
> 
> Could you tell me exactly how you have the K3 and P3 set up?  What
> versions of K3/P3 firmware are you running?
> 
> Thanks,
> 
> Alan N1AL
> 
> 
> On Mon, 2011-02-07 at 11:28 +0000, James Balls wrote:
> > Anyone ??????
> >
> > No replies on this ?????
> >
> > > From: makidoja at hotmail.co.uk
> > > To: elecraft at mailman.qth.net
> > > Date: Sat, 5 Feb 2011 11:57:34 +0000
> > > Subject: [Elecraft] p3 Tap to QSY in Data A mode
> > >
> > > All
> > >
> > > Just setting up for PSK contest and notice that the tap to QSO is not 
> > > accurate, ie if I tap to qsy to the scope peak for a PSK signal with the 
> > > filters narrow to say 0.2 the signal it well outside the filter pass 
> > > band
> > >
> > > Is there any way of changing this so the signal arrives in the passband 
> > > in DATA A mode?
> > >
> > > Thanks
> > >
> > > Jim M0CKE
> > > ______________________________________________________________
>