I did not see the article but I had just
that in the 90's. I had moved from a condo
where I explored copper pipe and shortened
octagon loops. Remembering my
experimenting when the now Ex & I moved to
a house and I had a tower, I experimented
with loops again & this time delta wire on
160.
I had a 110' fold over Heights tower and
had a short delta for 160 attached with
the apex at the top, held off about 15"
from the tower. The corners were attached
with ceramic egg insulators, It was center
fed at the base which was about 20' high.
I had a vacuum variable attached at the
feed point and a length of around 10' of
wire parallel to the tower, running
upwards about 5" from the tower and held
in place with ceramic stand-offs.
I controlled the vac variable via synchros
and with it I could run the entire 160M at
1.1 I'd love to have it again but I'd need
a tall tower to make it effective. I
didn't get the chance to make a matching
short delta, one 90 degrees offset to see
if I could switch between them and find a
gain benefit in a given direction.
However, I did well with it for the few
months I had it up, the next year I had to
relocate and never had another tower
since.
73,
Gary
KA1J
> Perhaps it's advancing age or lack of sleep from having a new baby in
> the house (or a combination of both,) but I swear I recently saw an
> article describing a vertical delta loop antenna for use on 160M, with
> a 90' tower as the center support.
>
> I want to say it was in an article describing some sort of "of the
> year" award for antenna or article design (perhaps similar to the ARRL
> cover awards?)
>
> Anyway, did anyone else see this article and if so, could you point me
> toward it? I can't seem to find it in the usual places I read (QST,
> CQ, NCJ.)
>
> (I really hope I didn't just imagine/dream this while snoozing between
> late-night baby feedings.)
>
> Thanks and 73,
>
> Chuck Milam, N9KY
> N9KY@arrl.net
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