[Elecraft] SDR software for KX3?

[Nicklas Johnson]

I had a lot of trouble until I put a ground-loop isolator between the KX3
and the PC.  The grounding at my QTH is a bit less-than-perfect, and I was
getting a 60Hz+harmonics buzz by connecting the PC to the KX3.  Not saying
it is the case with you, but it's just another one of those things.

You might try disconnecting the KX3 from your ground and running it off
batteries to see if it matters as far as the SDR is concerned... it's easy
to rule out a ground loop that way.


On 12 October 2013 18:20, Tom <tomb18 at videotron.ca> wrote:

> I think I'll be looking at the cables, I seem to be picking up some 60 hz
> on the kx3, fairly low level but this is on the battery so it must be
> coming from a connection somewhere. ThTs probably why there's always a log
> spur at the center frequently .
> I seem to have hdsdr working acceptably except for the spur. I'll also try
> rockey.
> Thanks for the suggestions
> Tom
>
>
>
>
> -------- Original message --------
> From: WB4JFI <wb4jfi at knology.net>
> Date: 12/10/2013  20:49  (GMT-05:00)
> To: Tom <tomb18 at videotron.ca>
> Cc: Barry LaZar <k3ndm at comcast.net>,elecraft at mailman.qth.net
> Subject: Re: [Elecraft] SDR software for KX3?
>
> Hello Tom.
>
> I have had success with using several SDR software programs (and sound
> cards) with my KX3.  It shouldn't be that hard.  I've used Rocky, hDSDR, a
> few variants of PowersDR, SDRsharp, and a few others, on various Windows
> and Apple (iPad, iPhone) computers.
>
> Most programs have internal adjustments for phase and gain differences, so
> you don't need to adjust those with External mixer controls.  Try Rocky
> first, it's probably the easiest to set up and use.  It can also
> automatically adjust for your sound card and rig differences.
>
> If you are having so many problems, be sure to check your cables.  I have
> had a couple of commercially made cables that were defective, with partial
> shorts between the various connections.  I had trouble with I/Q balancing
> until I found they were bad.
>
> Good luck.  73, Terry, WB4JFI
> Sent from tfox iPad
>
> > On Oct 12, 2013, at 7:27 PM, Tom <tomb18 at videotron.ca> wrote:
> >
> > Hi
> > Well I just bought a new outboard sound card and removed all previous
> cards. I'm now running an emu2020 and I can adjust the levels between the
> channels. I can minimize the images but as soon as you move up or down a
> while the images are back. I also have lots of spurious peaks making it
> impossible to distinguish between cw and spurs. There is no adjustment in
> software for the inputs but I can adjust the levels on the outside. The
> images look nowhere like what you see on YouTube.
> > Getting pretty frustrated here
> > Tom
> >
> >
> >
> >
> >
> > -------- Original message --------
> > From: Barry LaZar <k3ndm at comcast.net>
> > Date: 12/10/2013  17:28  (GMT-05:00)
> > To: elecraft at mailman.qth.net
> > Subject: Re: [Elecraft] SDR software for KX3?
> >
> > Guys,
> >      The one that really works well is NaP3. It was originally set up
> > for the K3, but the latest iteration does a great job on the KX3. I've
> > been running with the software for about a year or so, and I now don't
> > know how function without it.
> >
> >
> > 73,
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