[Elecraft] KX3 I/Q output for pandapter

[nr4c]

Anyone have any experience with the Behringer U202 or U222 USB sound 
device?  I see a lot of regular spikes across the band.

...bill  nr4c

On Thu, 2 Aug 2012 08:46:14 -0500, Tony Estep wrote:
> On Wed, Aug 1, 2012 at 9:40 PM, Buck k4ia <k4ia at aol.com> wrote:
>
>> ...the signals are not there - just images....
>
> ==========
> Buck, I have NaP3 running with my KX3, and it works fine. Set the 
> global
> offset to 0. NaP3 will automatically balance images if you give it a 
> strong
> signal to work on. I use my XG3 to put in a signal of S9+20 and tune 
> the
> KX3 about 20 khz above the XG3 signal. You'll see two spikes, but
> eventually the right-hand spike will diminish. You can move the 
> tuning
> around a bit, and finally you'll see the image drop to 40db or even 
> more
> below the correct signal. When an antenna is connected, the images 
> will be
> invisible in the grass.
>
> The cable that carries the I-Q has to be stereo 3/32" on one end and 
> stereo
> 1/8" on the other end. If something is shorted in the cable, that 
> would
> cause the symptoms you describe.
>
> Anyway, I assure you that it does work and that in fact it makes an
> excellent SDR. Once you get it going, you'll love it.
>
> 73,
> Tony KT0NY