[Elecraft] K3S - Win4K3Suite - SDRPlay

[Tom]

Gwen,
Win4K3Suite does NOT use the same audio libraries as WSJT, it uses native
DirectShow.  WSJT uses QTAudio.  There are some  issues with this QTAudio
which sometimes prevents proper enumeration of the audio devices.
Unfortunately when this happens, driver enumeration gets "stuck" and will
not work properly any longer without a reinstall of Windows.  Even
uninstalling the offending device driver doesn't work.  It still remains in
the list.  This is purely a bug in QTAudio.  Been there, done it.  I spent
hours with the WSJT developers trying to fix this issue on my system and
even though we used many development tools to try and find why, ultimately a
reinstall of Windows 10 was necessary.  I didn't but the next update of
Windows 10, Creators edition, fixed the issue.
Now if you are using a microphone input on your sound device, are you sure
it's working?  It would have to be a stereo input for the IQ signals.
Here's a quick test:  Pull up the spectrum and turn the VFO A knob on the
radio.  If you see the signals on the waterfall move in different directions
around the center frequency, then you are using a mono feed.
73 Tom
Va2fsq.com

-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Gwen Patton
Sent: June 9, 2019 9:40 AM
To: Elecraft <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

That's essentially what I did, but with KX3/PX3. I have a lovely 3.5mm to
2.5mm cable running from the PX3 IQ output to a spare mike in jack on my PC.
I had to do some weird jiggery-pokery with default sound devices to get it
to work because Win4K3Suite uses some of the same (or related) code that's
also in WSJT-X and other code derived from it, that doesn't play nicely with
Windows 7 64-bit. None of those programs will "see" my correct microphone
list, though other unrelated programs DO. Those programs only see a pair of
old entries that haven't been on my machine in years. I have to trick them
to see the devices I want, through setting default devices and using
VB-Audio's Voicemeeter virtual mixer program.

But when I DO get every tab A in the right slot B, I can set Win4K3Suite to
look to that spare mike jack for its spectrum scope source. Works great!

I've asked (begged) the authors of the various programs to PLEASE do
something about their operation with Windows 7, but I only get shrugs and
sometimes rude demands that I simply "upgrade to Windows 10, that works".
Seeing the *correct* list of enumerated input device drivers should NOT be
something I have to upgrade my operating system to get, when I only get the
problem with a very small number of specialized programs.  *sigh...*

73,
Gwen, NG3P

On Sun, Jun 9, 2019 at 9:25 AM Don Wilhelm <donwilh at embarqmail.com> wrote:

> Rich,
>
> There is no need to bypass the P3, just connect the SDRPlay to the P3 
> IF output.
>
> The P3 IF output is a replication of the K3S IF output.
>
> 73,
> Don W3FPR
>
> On 6/9/2019 7:04 AM, Richard Thorne wrote:
> > I'd like to try Win4K3Suite with an SDRplay receiver.  I've been 
> > looking for a block diagram showing how the SDRPlay is connected to 
> > the K3S or
> P3.
> >
> > I understand it's a just a matter of connecting the output of the P3 
> > I.F. to the SDRPlay.
> >
> > Can the P3 be bypassed and use the I.F. output directly from the K3S?
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