Posted by
mjpilgrim on
Feb 10, 2018; 8:32pm
URL: http://elecraft.85.s1.nabble.com/P3-SVGA-interference-tp7556731p7638074.html
I wonder if this discussion and suggested ribbon clips address my issue. I
acquired my K3 this past summer and then a P3 off of eBay shortly
thereafter. I installed the SVGA adapter a couple months ago and I have a
problem which sounds similar to what is described in this thread. For lack
of a better description let me say this symptom happens only on
20Meters..... as I view my spectrum now from 14.250 to 14.350 the noise
floor rests basically around S-2 across the entire band, revealing a few
transmitted ham conversations, My center frequency on the scope is 14.300
and at this moment I see occasional noise peaks rising up to as high as S-5
in two or three instances approximately 10khz wide, and at times 20 khz or
wider. These noise peaks are not consistent with any observed or detected
human voice transmission. At times I can see a very broad band of noise on
the waterfall which spans the entirety of the floating noise floor. The
same observation occurs when I am tuned down in the CW portion of the band.
I don't recall if this observation was present prior to adding the SVGA
adapter, and I've not thought about opening the P3 to inspect or move any
cables.
I know this symptom can best be demonstrated with a photo, so if that would
be beneficial, I will be happy to oblige. Just let me know who needs to see
it.
This is certainly a very annoying issue I wish to resolve. I'm open to any
ideas or suggestions.
Thanks, Mike, K5MP
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