[RFI] Across-the-bay line noise from 17 miles away

[Richard (Rick) Karlquist]

The problem here is the salt water path.
I have found from driving around that power line
noise travels a long way when over high conductivity
ground, so that even getting miles away from the
nearest power line is no guarantee of a noise
free area.  OTOH, up in the mountains, where
conductivity is poor, about 1/2 mile away
from the nearest power line is quiet as a
church mouse.  The ideal station has a transmitting
antenna over salt water and a remote receiving
antenna on a mountain top.

Rick N6RK