[Antennas] Antenna Suggestions

2002年5月29日 18:53:46 -0700

Funny how these things happen, but I've been planning to put up an antenna
very similar to the "tilted triangular loop" you fellas have been
discussing.
Basically, I have 3 trees for supports. The tallest would put the apex of
the triangle at about 60'. The two smaller trees would hold up the wire at
around 30-35'. Two sides of the triangle would be around 80' long, and
slope up from 30-35' high to the 60' apex. The low side would be around 40'
long, and pretty much flat at the 30-35' height.
The problem. I figure the best place to feed this beast is at the apex.
But to do this I would have to bring the ladder line down from the 60' level
to about 8 or 10' high, then run the ladder line parallel to the antenna for
about 30' to the shack. I've been told running ladder line parallel to an
antenna is not a good thing.
Alternatively, I could feed it in the middle of one of the 80' sides and
bring the ladder line straight down about 40' to the shack.
What do you guys think?
Right now I've been using an 88' dipole about 35' at the center and sloping
down to about 15-20' at the ends. It seems to do a pretty darn good job for
such a low antenna:-)
73
Dan
Dan Evans N9RLA
Scottsburg, IN 47170
{EM78}
IN-Ham list administrator
QRP-l #1269
1/2 of the N9RLA /R no budget Rover Team
Check out the Rover Resource Page at:
http://www.qsl.net/n9rla
----- Original Message -----
From: "Dan Martin" <[email protected]>
To: <[email protected]>
Sent: Wednesday, May 29, 2002 3:33 PM
Subject: Re: [Antennas] Antenna Suggestions
> A tilted, triangular, nearly full-wave loop? About 40 feet at the apex and
> 10 feet, or so at the base?

> > Right now the hottest antenna that I have up is a "tilted triangular
> nearly
> > full-wave loop." It is almost a full wave on 80 - a little short - with
> the
> > apex at 40 ft and the base of the triangle at 10 feet and tilted about
45
> > deg from vertical.