[WriteLog] Interference found

[Gary McConville]

Its those @##$! switching power supplies.  You can try shielding it AND
running ferrite beads.  I'm going to try a non-switching supply out and
will let you know.

Gary McConville - WB4SQ


--- Jerry Pixton <jpixton at shentel.net> wrote:

> All who responded,
> 
> I found my noise generator. Something many of us have in the shack.
> The 
> network hubs!
> 
> I have two local area networks for the house/shack. One internal for 
> sharing between computers and one external for access, through DSL
> modem, 
> to the internet. Firewalls between in DMZ style. Both hubs,
> Linksys/Cisco 
> are generating about a 60 Khz noise (from some sort of switching
> power 
> supply?) and are just slightly out of frequency with each other; thus
> two 
> tones.
> 
> I have been using these hubs for over two years in the other house
> and 
> never suspected any noise from them. But I had good outside antennas,
> not 
> some dipoles laying here on the floor.
> 
> Now to figure out what to do about the noise? Get different hubs? Get
> Cisco 
> to replace them? Has anyone else had problems with the Linksys hubs?
> 
> Now that I at least know what is causing the noise, I can get back to
> 
> wiring the station, HI
> 
> Jerry, W6IHG
> ------------------------------------------
> Dr. Jerry R. Pixton, PIXOS Designs LLC
> http://www.pixos.com/designs/RadioTuner/
> jpixton at shentel.net
> ------------------------------------------
> 
> 
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