[NLRS] WSJT - Computer generated RFI

[Bill Davis]

   My recent digital activity on 2m has been pretty limited, but I have been puzzled by wideband "buckshoot noise" that I was thinking was from something at our weekend neighbors. It is NOT!
  First this noise raises the noise floor on 144.174 by 6db and there is a nasty S7+  4Khz wide growler centered just below 144.230. These growlers are every 115Khz across 2m. 
  While waiting for activity on 2m this eve I discovered the source:

   The source ... ANY TIME WSJT-X v2.5.4 is LOADED. It does not need to be running, I can turn the monitor off, unchanged, mode makes no difference. WSJT-X being loaded on this machine generates this noise.
   Strange!!! The computer is a Dell  ::
Intel(R) Core(TM)2 Quad core Q9400 @2.66GHz -- 8GB memory
 Win 7 -- 64 bit operating system.
I'm still trying to get my head around this!!
73  Bill  K0AWU
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