[Elecraft] KX3 Opposite Sideband and IF Image Nulling Procedure Problems

[Oliver Dröse]

Ed,

are you sure you are on CW when doing the procedure and not CW-R (or 
LSB/USB)? Don't ask how I know ... ;-)

73, Olli - DH8BQA

Contest, DX & radio projects: http://www.dh8bqa.de


Am 16.12.2014 23:25, schrieb Ed G:
> Hello,
>       I have performed the Rev A8 Opposite Sideband and IF Image Nulling
> procedure on my KX3 (thanks VK2RQ for the reference).  On page 5 of the
> procedure, step 2 says the KX3's VFO must be set 16 kHz higher than the
> signal source. However, I noted that to hear any signal at all, my VFO
> setting was more like 14.8 kHz higher than the source (true on all bands). I
> am assuming that the signal I hear that is about 14.8 kHz higher is the
> image, and I proceeded with setting RIT on and completion of the automatic
> gain and phase settings.  I probably will not ever use the IF shift, but I'm
> wondering why my receiver setting was not the 16 kHz higher frequency as
> stated in the procedure. Also, I noted that "RXSBNUL" in steps 6 and 7A
> should be "RXSBNUL*"
>       The main issue I am having is that despite running through the opposite
> sideband nulling procedure, and hearing the test signal opposite sideband
> being nulled out, the KX3 performance with actual signals on the bands has
> not improved.  I am still hearing with equal strength both sides of the CW
> signal. I have powered off the KX3 after running the nulling procedure to
> make sure the new settings stuck, but no change. I'm not sure what to check
> next...
> --Ed, N3CW--
>
>   
>
>
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