In years past I have always greatly increased my success rate to resolve
line noise by doing most of the dectective legwork. It seems if you make a
complaint for the power company to come out and first find it then fix it it
seems to automatically get low priority.
Having some understand of the problem and its causes goes a long way to
resolution. I think most of us realize loose hardware, slack bells and loose
ground staples all contribute to noise. Most is inductively pickup'd in
small created gaps.
By identifying the sources and passing this info on to the supervisor
instills in him that you know what your talking about and have always felt
gets a much more positive response.
For most of us we don't have sophisticated DF'ing equipment but a nifty
device is the MFJ-852 Noise Locator. It receives in the AM aircraft band
with attached dipoles but I went s step further. I installed a BNC female on
the top then purchases a 4 element 2 meter beam installing a male bnc on the
coax. It gives the 852 remarkable directivity. I have found though close in
to a strong source you must remove the beam and return to the dipole as the
front end will overload with the beam. I have even located poles with the
dipoles unscrewed off the unit. It's that sensitive.
After getting a commitment from the power company being there with your
noise locator is essential so as again to help them resolve the problem. By
locating the offending pole and also participating from the ground will
greatly increase your chances to eliminate your problems.
I knwo this just scratches the surface of this problem but this has been
successful for me over the last 30 years.
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