01-08-2014, 05:16 PM
How about this. The lights are putting out additional noise, but are on the opposite phase of the primary noise source, canceling it out? Like the way the hum-bucking coil works.
Some of this is black magic. I have a RCA T-60 and a Philco Jr. sitting next to each other. Tons of noise on the RCA, none on the Philco. I traced it back to the wall wart for the answering machine. Seems the RCA line coupled antenna no like wall wart.
The Plasma TV trashes almost everything, but radios with loop antennas fair much better than long wire sets. BTW: the TV radiates so much hash that I can pick it up on my scope if I touch the probe tip. It's an ugly looking 35KHz signal that I assume must be the power supply.
Some of this is black magic. I have a RCA T-60 and a Philco Jr. sitting next to each other. Tons of noise on the RCA, none on the Philco. I traced it back to the wall wart for the answering machine. Seems the RCA line coupled antenna no like wall wart.
The Plasma TV trashes almost everything, but radios with loop antennas fair much better than long wire sets. BTW: the TV radiates so much hash that I can pick it up on my scope if I touch the probe tip. It's an ugly looking 35KHz signal that I assume must be the power supply.
John
Las Vegas, NV USA
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