Re: [IRCA] Electrical QRM question

["CHRIS KNIGHT" <cgknight63@xxxxxxx>]

It sounds like the QRM is coming from a defective device with digital 
control logic. The device enters a state that causes QRM, then when you turn 
power off then on, it resets the device back into a known good state. Or, it 
could be the defective device's power supply.

Next time the QRM happens, power off a section of your house at a time while 
monitoring the QRM. When you find the circuit the offending device is on, 
you narrowed down your search. Or, you could unplug everything in your house 
one device at a time while monitoring the QRM. 73.

Chris Knight
Fort Lupton, Colorado

> I once again experienced massive buzzing all around the house. It seemed 
> stronger near various things like lights and light switches, etc... and 
> when I turned off the main power switch and then turned it back on, the 
> noise went away. This happened last time, a few months ago, too, and the 
> same trick worked.
>
> My question is - for anyone here who knows about such things - what might 
> be going on to cause the QRM, what am I doing when turning the main power 
> off and then back on, and most importantly is there anything I should be 
> telling my elecrician?
>
> Saul


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