[Elecraft] SDR-IF and I/Q questions

[Richard Fjeld]

Well Dave, maybe I am missing something here, but this thread has been 
about the anticipated KX3 and having a Pan-Adapter to use with it.  As I understand
it, the I/Q leads are being brought out, but not the IF.  So other SDR receivers, or adapters, are not 
needed. Therefore, we are down to finding acceptable software, soundcards, and computers
to make it work on a par with a P3.

The programs I tried that are not producing mirrored images are lacking good control between radio and software. No 'search and pounce' capability, and time consuming to adjust as the frequency was changed beyond the display width.  Not hardly on a par with a P3. Perhaps there is something out there that I am not aware of. I'll concede that, but if it is a commercial product, I want to exercise 'buyer beware'. 

I find PSDR-IF would be a very good match if it wasn't for the mirrored images that fills a crowded 
screen. Thanks to a fine gentleman who sent me this link, it shows I am not the only one
having this problem.  Go to:
http://groups.google.com/group/powersdr-if-stage/search?group=powersdr-if-stage&q=image&qt_g=Search+this+group


and click on the posts with "image" to see all the posts on this topic.  Many people are having trouble
with it.  AND, it pretty well identifies the problem.  If it ever gets fixed, we will have something encouraging.  At the speed it is going, it may be only for younger people.
73,
Dick, n0ce 

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What specific shortfalls in SDR applications that don't have images lead 
you to conclude they are inferior to the P3?

Also, keep in mind that "SDR" is not completely defined by 
soundcard-based configurations.  Have you considered other 
computer-based SDR front ends like SDR-IQ or QSR-1 before making such a 
blanket assessment?

Dave   AB7E
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