I wonder how the constant increase in distribution voltage affects line noise.
I think it would be more quiet perhaps until the system got old. One curious thing happen to me when I was installing big dish satellite systems. Outside this house was a newly installed 34.5 KV local distribution system with three phases to supply the neighborhood. When I pointed the satellite dish right at the power lines,
gold speckles would appear on the picture. I had to leave it like that because that was the only place I could get the signal on Satcom three. The customer never complained. I believe the big dishes operated somewhere between 2-5 ghz. I often wondered if some sort of ionization was taking place there causing something to radiate in the microwave spectrum??
