Recently I put down a 220' BOG, using the KD9SV hardware, including the
preamp. Because of my yard's layout, the forward end of the BOG fell
within about 20 feet of what the power company has identified (but not
fixed yet), a noisy line with a number of broken insulators.
I came in to listen to the antenna, and was surprised to note that my
noise (mostly from the powerline, by ear) is worse on the BOG than on my
jury-rigged sloper transmit antenna. It is much (maybe 20 dB) worse in
the direction toward the power line than in the opposite. While I take
this as encouraging evidence that the BOG has some directivity, I don't
think I'm even hearing any atmospheric noise that may be present,
because of the power line.
So now I'm wondering, is the BOG in this position worth keeping, even
assuming that I can eventually get the power company to fix the line. Or
should I look at another type of receiving antenna, such as a K9AY loop
or SAL, which can be placed much farther from the power line?
--
73, Pete N4ZR
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