[RFI] Alternative Noise Sources?

Jim Brown jim at audiosystemsgroup.com
Tue Oct 12 10:09:27 PDT 2010


  On 10/12/2010 6:32 AM, Kimberly Elmore wrote:
> What consumer electronic item could they have purchased and installed that would generate S9+20dB noise on 40 m with a 60 Hz component 24/7? I don't think they watch TV 24/7, so I doubt that it's something like a plasma TV (I've not heard plasma TV noise). What else could it be? In short, what might I be missing?

Unfortunately, the possibilities are almost limitless. The power 
supplies for virtually all products now have switching power supplies, 
everything from battery chargers for a mobility scooter and power tools, 
to computers, TVs, indoor and outdoor lighting, radios. security 
systems, etc.

If the noise is there 24/7 and it's coming out of a home, I'd think 
first about a battery charger.

73, Jim K9YC


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