I have very loud received noise that is about 10 db over S9 on 10,12,15,17,
and 20 meters. When I plot the pattern using the noise as a constant source
from the 10 meter antenna, 15 meter antenna, and 20 meter antenna, I get
three similar overlaid patterns corresponding to the actual antenna patterns
but all three pointing exactly to 210 degrees and all with almost the same
maximum S meter reading on these five bands.
I am on a rural hilltop location with 20 mile line of sight from a 64 foot
tower. Most houses are on 5 acre or larger sites here. I assume the noise
is line noise, but have not confirmed that either. Am I looking at the noise
source directly with the antenna or can the exact direction be camouflaged
if the noise is conducted for a long ways and then reradiated? Is there an
easy way to determine whether the noise is primarily radiated or conducted.
The noise blanker on the Yaesu 1000MP knocks the noise way down (6 or 7 S
Units)as the noise has a very high peak to average ratio (arc?).
