[Elecraft] Sound card recommendations for KX3 RX I/Q?

[Julia Tuttle]

I don’t think there is any loss of performance by simply attaching a
panadapter or sound card to the RX I/Q output.

There’s always the chance of picking up more noise with more wires, but I
don’t think that’s significant here.

But I’m also not an expert, so if someone knows better, please chime in!

On Tue, May 5, 2026 at 15:10 paul somlo <paul_somlo at yahoo.com> wrote:

> I have an even broader question, if I may:  When using the KX3 with a
> sound card or panadapter, is there any loss in performance over just the
> KX3 itself?  Please excuse my ignorance - I've been away from the hobby for
> over 40 years and just bought myself a used KX3.
>
> Paul
> WB2EIU
>
> On Tuesday, May 5, 2026 at 12:07:57 PM MDT, Curt Nixon via Elecraft <
> elecraft at mailman.qth.net> wrote:
>
>
> The lp pan revommended e Mu 0204 is a very good external usb card. They
> still show up used from time to time and even used they seem bullet proof.
>
> Curt
> KU8L
>
> On Tue, May 5, 2026, 1:13 PM Julia Tuttle via Elecraft <
> elecraft at mailman.qth.net> wrote:
>
> > Hi folks,
> >
> > I’m considering wiring up the KX3 RX I/Q to my computer for a wider
> > spectrum view, but the latest LP-PAN sound card tests I can find online
> are
> > almost a decade old, and the Behringer model they suggest (UMC202HD)
> seems
> > to be discontinued or at least sporadically stocked.
> >
> > Does anyone have a sound card they recommend for interfacing the KX3 RX
> > I/Q? Behringer does have newer models with 192 kHz sample rate but
> they’re
> > significantly pricier.
> >
> > Thanks,
> >
> > Julie
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