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p3 Tap to QSY in Data A mode

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James Balls

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
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Cady, Fred

Re: p3 Tap to QSY in Data A mode

I find when I tap the SELECT knob to QSY I sometimes rotate it a bit so
I set one of the function keys to Knob Tap to solve that problem.

Fred Cady
fcady at ieee dot org

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Jim Balls
> Sent: Saturday, February 05, 2011 4:58 AM
> To: [hidden email]
> 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
> ______________________________________________________________
> 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
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>

James Balls

Re: p3 Tap to QSY in Data A mode

In reply to this post by James Balls

Anyone ??????

No replies on this ?????

> From: [hidden email]
> To: [hidden email]
> 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
> ______________________________________________________________
> 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

Bob Naumann W5OV

Re: p3 Tap to QSY in Data A mode

Why not use your mouse and select signals in the PSK software?

You can select any of several signals this way that will be in your passband
and it will be right on the signal. You should not be QSYing your radio to
tune to different signals in the way you describe. This is just the wrong
way to operate PSK.

Since the P3 / K3 is not decoding the specific signal you desire to go to,
and PSK signals are so narrow, the phenomena you describe should be expected
rather than considered a problem.

Use the software.

73,

Bob W5OV

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of James Balls
Sent: Monday, February 07, 2011 5:28 AM
To: [hidden email]
Subject: Re: [Elecraft] p3 Tap to QSY in Data A mode

Anyone ??????

No replies on this ?????

> From: [hidden email]
> To: [hidden email]
> 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
> ______________________________________________________________
> 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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James Balls

Re: p3 Tap to QSY in Data A mode

Bob et al,

This is not the way I operate in contests, I use the K3's excellent filters!

Scenario:-
If 1 very strong station is close to 3 weak stations you will not copy the weak stations due to the strong station shutting the ALC down, so narrow the filters right up and hey, there are the weak stations!

So using the P3 to find the signals and leaving the K3 filters narrow works real good for me.

Only thing i have to do is use the VFO B knob while VFO A is running where I would like the P3 to tune the K3 with click and shoot to the centre of the pass band when in data A mode.

I think this is a feature that’s required for the P3.

Anyone else agree?

Jim M0CKE

> From: [hidden email]
> To: [hidden email]
> Date: Mon, 7 Feb 2011 06:37:41 -0600
> Subject: Re: [Elecraft] p3 Tap to QSY in Data A mode
>
> Why not use your mouse and select signals in the PSK software?
>
> You can select any of several signals this way that will be in your passband
> and it will be right on the signal. You should not be QSYing your radio to
> tune to different signals in the way you describe. This is just the wrong
> way to operate PSK.
>
> Since the P3 / K3 is not decoding the specific signal you desire to go to,
> and PSK signals are so narrow, the phenomena you describe should be expected
> rather than considered a problem.
>
> Use the software.
>
> 73,
>
> Bob W5OV
>
>
> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of James Balls
> Sent: Monday, February 07, 2011 5:28 AM
> To: [hidden email]
> Subject: Re: [Elecraft] p3 Tap to QSY in Data A mode
>
>
> Anyone ??????
>
> No replies on this ?????
>
> > From: [hidden email]
> > To: [hidden email]
> > 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
> > ______________________________________________________________
> > 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
>
> ______________________________________________________________
> 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

N5GE

Re: p3 Tap to QSY in Data A mode

In reply to this post by James Balls

Jim,

I thought I saw a post in answer to your comment about QSY in data mode, but
perhaps it was an answer in another thread.

The poster said he noticed that when he tapped the knob on the P3 he was
rotating it very slightly. After seeing this he said he set one of the function
buttons to TAP and his troubles went away.

I rarely operate anything but CW here and have noticed the same thing happening
to me when I'm on a narrow filters setting below 200Hz. Although I haven't done
it yet, I plan to make the change the other poster suggested.

I hope this has been helpful.

73,

Tom Childers
Radio Amateur N5GE
Licensed since 1976
QCWA Life Member 35102
ARRL Life Member
Retired Professional
C# Software developer
http://www.n5ge.net

On Mon, 7 Feb 2011 11:28:11 +0000, James Balls <[hidden email]> wrote:

>
>Anyone ??????
>
>No replies on this ?????
>
>> From: [hidden email]
>> To: [hidden email]
>> 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

[snip]

______________________________________________________________
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Amateur Radio Operator N5GE

Alan Bloom-2

Re: p3 Tap to QSY in Data A mode

In reply to this post by James Balls

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: [hidden email]
> > To: [hidden email]
> > 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
> > ______________________________________________________________

James Balls

Re: p3 Tap to QSY in Data A mode

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: [hidden email]
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: [hidden email]
> > To: [hidden email]
> > 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
> > ______________________________________________________________

Alan Bloom-2

Re: p3 Tap to QSY in Data A mode

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: [hidden email]
> 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: [hidden email]
> > > To: [hidden email]
> > > 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
> > > ______________________________________________________________
>

Richard Ferch

Re: p3 Tap to QSY in Data A mode

In reply to this post by James Balls

Jim,

I don't have a P3, so cannot comment directly on that aspect, but there
seems to be some confusion between DATA A and AFSK A in your latest
e-mail, which may obscure your message.

The mode normally used for PSK and other sound card digital modes is
DATA A. DATA A is an upper sideband mode, and the K3's dial reads the
suppressed carrier (BFO) frequency, exactly the same as in USB mode. The
centre of the filter passband in DATA A is 1500 Hz above the dial
frequency (1500 Hz below in DATA A-REV). If you were referring to DATA
A, not AFSK A, your comment about a 1500 Hz offset needed for clicking
and tuning to a narrow-band signal like PSK31 could be apropos, i.e.
ideally, clicking on a PSK signal trace in the waterfall when the radio
was in DATA A mode would tune the radio to a dial frequency that was
1500 Hz below the actual frequency of the signal being clicked on.

AFSK A is different from DATA A. In AFSK A and FSK D, the K3's dial
frequency displays the RTTY Mark frequency, which is set by the PITCH
setting to one of four possible offsets below the suppressed carrier:
915 Hz, 1275 Hz, 1445 Hz or 2125 Hz. The centre of the filter passband
in AFSK A is 85 Hz below the K3's dial frequency. If the intent is to
tune to an RTTY signal by clicking on the upper (mark) trace in the
waterfall, no offset is needed; if the intent is to tune to the signal
by clicking halfway between the mark and space traces, then an 85 Hz
offset would be needed, i.e. the K3 should be tuned 85 Hz above the
actual frequency that was clicked on in order to centre the signal in
the passband.

73,
Rich VE3KI

M0CKE wrote:

> 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.
______________________________________________________________
Elecraft mailing list
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Post: mailto:[hidden email]

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