[TowerTalk] 160 antenna
Jim Brown
jim at audiosystemsgroup.com
Mon Aug 8 07:08:04 EDT 2005
On Mon, 8 Aug 2005 05:42:52 -0400, Tom Rauch wrote:
>IMO the best solution is the suggestion to tie the
>feeder wires together and feed the antenna like a "T"
>against a good ground.
This has worked for me. I don't have a big signal, but
it works well enough that what I can work is limited as
much by receive noise as by my transmitted signal. In my
case, I don't have a "good ground," but I do have a
reasonable counterpoise. It loads pretty easily with a
TenTec tuner (and no external capacitance). In fact, it
works better than the same antenna loaded as a dipole on
80 in directions that are off the end of the antenna.
See
http://audiosystemsgroup.com/K9YC/k9yc160TopLoad.htm
and
http://audiosystemsgroup.com/K9YC/Kraus-TopLoad.jpg
which is from Kraus.
It is QUITE important that there be no choke balun in
the usual place at the dipole center. The first time I
tried this configuration, I burned up a conventional
balun with 100 watts during the first contest weekend
that I used it. The reasons should be obvious.
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