Good job up to the last step. After getting where I think I have the pole with
the VHF TRF receiver I use a Ultrasonic detector that was shown in QST by
W1TRC. It will enable you to 100 % verify the problem is on the pole you
suspect. You can actually hear the arc if it is in line of site of
On 1/4/2013 5:56 AM, Mike Armstrong wrote:
After all the preliminaries, I want to try the T, but it definitely struck me
that the antenna, being OCFD as much as it is, is definitely NOT balanced side
to side.
By all means do it as a Tee, and don't worry about the imbalance. There
is, however
Good work and thinking, Don. Sometimes noise is tough to locate.
techniques work). Here is a link to a simple website I created that
contains pictures, oscilloscope screen shots of receiver audio, and links
to video recordings that I made.
http://sites.google.com/site/powerlinenoise/
Listeni
Hi Mike,
You should enjoy much improved DX performance with an inverted-L and ground
radials than you're having with your off center fed dipole (OFCD). I recommend
you simply use an inverted L rather than a T vertical. The T vertical offers
little advantage if the T top isn't nearly symmetric
Hi Don,
Very nice job, I've used similar methods to accurately track down power line
noise at W3LPL. My power company is very responsive when I give them reliable
RFI location information.
I use a Yaesu FT-847 in my vehicle with a short vertical whip antenna to track
power line noise on the H
I don't believe that the off center top loading will have a huge effect if you
feed it as a T, vs a symmetric T
Theory would say that a ground fed T against even 3-4 radials will have a
lower DX angle. The price you pay is the ground losses of a vertical (not due
to the modest ground radial s
Hey guys and gals,
I have a question: I have an OCFD that is about 130 feet long, end to end. It
is Off Center Fed at a current node for 15 meters, which is the band it was
designed for. Ends up that it tunes easy on just about any band, albeit with
open wire feeders and a tuner. It works ve
Hello Topbanders,
For the past few months I have been plagued by what I suspected was power
line noise on 160 meters, and finally was able to track it down to a power
line pole 0.66 miles from my house and learned a bunch during the process.
While this topic has been covered in the past, I thought
