Originally Posted by T-Bird
As a cause.
If Your bass would be able to pick up the interference field of the transmission lines, you wouldn't be able to have any RF reception without the interference. Actually, no-one could.
I also fail to imagine how AC transmission lines of any kind would be able to create any interference. At least no interference like were discussing here.
It's true. I've had the utility company come out and measure it with their equipment (gauss meter?), and they confirmed it. If you play a single coil guitar plugged into a high gain amp in my house near the wall closest to those lines, it absolutely howls with 60Hz hum if you are facing perpendicular to those lines. If you turn 90 degrees either direction, it lessens dramatically.
Any conductor with 60Hz AC current flowing through it generates a cylindrical magnetic field around it that expands and contracts 120 times a second, passing through zero and alternating in polarity. The more the power in the line, the stronger the field, and these lines are bigger than the normal neighborhood distribution lines but hung relatively low.
I was under the impression we were talking about 60Hz RF. If not... well, I misinterpreted something.
Also, 60Hz RF will not interfere with other frequencies; my wireless WiFi is unaffected by it.