On Thu, 02 Jul 2009 11:25:37 +0000, Brad wrote:

Hi,

I like to listen to ham radio HF bands and short wave broadcasts,
but
I often have intermittent power line noise. I found a source (power
pole, possibly bad insulator), but when the person from the power
company came out to investigate my complaint, the noise wasn't there
(intermittent).

Running a wire antenna perpendicular (not parallel) to power lines
is one
way to lower power line noise, but unfortunately, the power lines run
North to South where I live. My wire antenna also runs North to South
so it "favors" East and West, which is what I want.

Can anyone recommend a noise immune type of antenna that is less
sensitive to power line noise?

Thanks in advance, Brad

Before you type your password, credit card number, etc.,
be sure there is no active keystroke logger (spyware) in your PC.

You might get some relief by grounding the antenna for DC. Since you are
not using the wire for transmitting (am I reading the above correctly?),
you can easily ground the wire using an RF choke or a so-called magnetic
balun. Perhaps a 1 mH or so choke from the end of the wire to ground.
The balun is basically just a toroid transformer that allows you to
isolate the wire from the radio and ground the wire directly.

No guarantee of effectiveness, but either is easy and cheap to do and
won't harm the radio.

--
Rich W2RG