I gotta agree with Rob. An inverted L aerial wire will hear ALL the noise
that is around. Mine sure does. RX antenna will help enormously if there is
a place to put one that does not get the noise second hand off the L. Not
enough room? A bit complicated, but "repeated" noise off the L can be dealt
with.
The worst noises around here heard on my L were all repaired by the power
company. The nastiest noise was very hard to find, I actually never "found"
it by looking for it. Noise turned out to be from a bad splice in an
underground 13 kV cable going from the 13 kV delta overhead out on US 64 to
the transformer for my eastern neighbor and next house over. It would come
and go with extended cold weather, but never would correlate to sunlight or
darkness. I would hear it next to my transformer walking around with my
battery K2 and a rubber ducky. It would never locate to up on a pole (only
power noise that didn't).
Finally the splice hard-arced, exploding the fuse up on the pole for the
neighbor's 13 kV feed, and taking those two houses off the grid. The noise
went away with the cannon shot noise. Blessed quiet on 160 and 80. I had
put up with that for almost four years.
In the end, Duke Energy completely reran his AND my buried 13kV lines, and
replaced his transformer. 35 years in the ground, 35 year old cable design
and materials, and deficient in THEIR opinion. Was really fun to watch them
use this super-neat burrowing setup that went right UNDER the woods and the
creek (whole other story). Now I can hear the lesser noises on my L from
all over Apex and Cary :>) Need RX antenna for sure. That way I don't have
to listen to the Cary, NC noise (NE) at the same time as the generally
closer and louder Apex, NC noise (S, SE).
73, Guy K2AV
On Tue, Jul 23, 2019 at 9:37 AM Rob Atkinson <ranchorobbo@gmail.com> wrote:
Over past few months, I have picked up an S5-S7 noise signature on my TB
inv
L antenna with K2AV FCP system.
I would not use an inverted L for receiving. Unusable for rx at my
QTH but FB for transmitting.
73
Rob
K5UJ
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