[Elecraft] KX2 added to Sherwood's list

Wayne Burdick n6kr at elecraft.com
Tue Aug 1 23:57:50 EDT 2017


We found the problem; turns out to be in the setup command to the DSP, not in the DSP itself. With any luck we'll have it fixed this week in both rigs. 

Wayne
N6KR

----
http://www.elecraft.com

> On Aug 1, 2017, at 6:29 PM, K9MA <k9ma at sdellington.us> wrote:
> 
> Another interesting detail, I think.  For the KX3, if I recall correctly, both the QST review and Sherwood's tests indicated that the audio image (opposite side of zero beat) wasn't all that far down, like 60 dB, and limited close-in dynamic range.  I don't recall any such qualifications for the KX2, and indeed mine doesn't seem to have an audible image even on the strongest signals.  (Not a scientific test, I know, but I think I'd hear an image 60 dB down.) If this is so, what is the difference responsible?
> 
> Note that the optional "roofing" filter in the KX3 is really just an audio filter.  While it may improve dynamic range beyond a few kHz, it has no effect on the image.
> 
> 73,
> 
> Scott  K9MA
> 
> 
> -- 
> Scott  K9MA
> 
> k9ma at sdellington.us
> 
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