[Elecraft] RFI resistant Monitor

[David Ahrendts]

Gerald, I’ve been on the RFI noise hunt for several weeks with my system. Added the SVGA with a very nice LG 23-inch LED monitor (M45 23M45D). Perfect size to fit above the K3S and P3. I’ve managed to lower my noise floor to typically well below S1, and do notice the LG producing a tiny high pitched noise from it’s switching power supply. I would use my 12V PowerWerx, but the LG switching PS produces something like 27 volts. I’m confident I can reduce the tiny noise some more.

David A., KK6DA, Los Angeles   

> On Apr 10, 2016, at 10:44 PM, KC6CNN <kc6cnn at gmail.com> wrote:
> 
> Hello Everyone. 
> I am running a Samsung 21 inch monitor on my Elecraft P3 SVGA. 
> I just found that when the monitor is on it adds 2 bars of noise to my
> meter. 
> It is also turning off when I operate on certain bands. 
> Does anyone know of a good monitor to combat RFI and Noise. 
> I have had some local hams tell me to cut the power cable and run it from my
> Astron and take out the switching power supply that came with the Samsung
> monitor. 
> Any suggestions and thoughts are appreciated. Oh PS I do have a bunch of
> beads on the cable from P3 to monitor and on the power cable. 
> 
> Thanks
> Gerald
> KC6CNN
> 
> 
> 
> 
> -----
> KC6CNN - Gerald
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David Ahrendts   davidahrendts at me.com