[RFI] Line noise update

Jim Brown jim at audiosystemsgroup.com
Tue Oct 9 11:41:56 EDT 2012

On 10/9/2012 5:16 AM, N1BUG wrote:
> It was near one of my really bad 24/7 offenders and got lost in the 
> din. Now it is the only remaining source in that direction, so it 
> should be easy to find. 

Great news on your progress, Paul. Ours is such a noisy world that it's 
become really common for our noise levels to be the combination of many 
sources.  Now that you've knocked down the strongest ones, you're 
hearing weaker ones. Don't rule out the possibility that some of those 
that remain may be electronic noise generators in homes. Some of the 
worst (and most common) are switching power supplies that are feeding 
low voltage lighting fixtures, battery chargers, and so on. Then there 
are doorbells, street lights, etc.  Most of this stuff is radiated by 
wiring within the buildings where the noise source is located.

73, Jim K9YC

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