The RF effect is probably not much for transmitting, but receiving may
pick up lots of noise. It all depends on what type of power line you
are refering to. If it's a single distribution line in a residential
area, it will relatively low voltage and noise. If you are looking at a
high voltage feeder line with multiple 3-phase lines, then you will get
lots of noise, including corona discharge, arcing when the insulators
are wet and dirty.

My 160 meter dipole has one end near a line with two high tension
feeder lines plus the residential feeder line. I use the antenna on all
bands, and can really hear the noise reduction when on 40 meters and
above and switch to an antenna quite a way from the power lines.

My power company also has a deeded right of way along the South part of
my property where I cannot put anything above a certain height or build
anything that might contact a falling wire. If this is your case also,
you might take a look at your deed restrictions and put your poll
outside the restricted area.

Good luck, Paul KD7HB


an_old_friend wrote:
anythoughts on the ffect of putting long wire anttens near powerlins ?

thanks you changing poles (and leaing the an old pole I have access to
a pole for a posible HF antenna that will terminate near thw power line
(and likely run away from them at a roughly 90 degree angle, groow
effect like the power line falling on the attenna are adressed by the
phycal layout but what of the rf efect (a seperate from the end of the
attnea on the old pole to the restrung wire new pole is a bout 4-6 feet
( the anttena is still in the planing stages)