[Elecraft] K2 + ATU + Loop antenna in the attic
Mike WA8BXN
hubby2k at hotmail.com
Fri Apr 15 21:17:03 EDT 2011
I have had two fan dipole in use maybe 15-20 years ago, before the time of
widespread use of auto tuners. One was a commercial model, with the various
lengths of wire on each side of the center insulator spaced about an inch
apart (spacers were used). I did not have so much success with it. The other
was homebrew, with 3 dipoles sharing the same center insulator and coax, but
each going in different directions with the trees available. It was a great
antenna that gave me good performance with low swr on my bands of interest
without need for a tuner.
Currently my most often used antenna is a dipole fed with ladder line. The
ladder line connects to a balun and a short piece of coax to the radio with
built in tuner. This setup tunes well but seems to pick up noise from the
house. I should probably use more coax to get the ladder line a bit away
from the house.
I also have a vertical with decent radial system, coax fed, a fair distance
from the house (>100 feet) that picks up much less noise from the house. I
do think the dipole works better than the vertical, at least for
transmitting.
73 - Mike WA8BXN
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