Re: KX3 I/Q SDR questions
Posted by
Sebastian, W4AS on
Nov 07, 2011; 9:57pm
URL: http://elecraft.85.s1.nabble.com/KX3-I-Q-SDR-questions-tp6960402p6972233.html
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
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