[Elecraft] KX3 I/Q SDR questions

[Sebastian, W4AS]

What image problem do you mean?  If you are seeing a ghost, or the same signal on both sides of the center, then you have a ground loop.  Try removing the ground of the power cable, or the audio cable, and see if it goes away.  

If you have a 'hump' just in the center, then that is common of sound card based SDRs.  Although some software, such as SDR-Radio, will remove some of it.

73 de Sebastian, W4AS



On Nov 7, 2011, at 4:32 PM, Richard Fjeld wrote:

> Thanks Dave,
> 
> I have been trying to run PSDR-IF on an HP with a P4 at 3 GHz.  with a 96 
> KHz SoundBlaster card.  The image problem makes it unusable. Yet WinRad 
> displays fine. I've used both a Softrock and an LP-PAN.
> 
> I have a friend, and I read about others, who are trying to make it work on 
> other radios with the same problem.  We can't find the solution. I have been 
> told that others are successful. Perhaps it lies with the Video Card which 
> you omitted in your cost estimates.
> 
> Dick, n0ce