HF loop antenna and angle of wire
 

I've been working on a horizontal loop, about 210 feet of wire. I've
read that the shape isn't particularly critcal. That's good because my
yard isn't anything close to symmetrical!

Anyway, I've got one angle where the wires are coming together at an
angle that is somewhat less than 90 degrees. If you can envision a
classic "kite" shape, that's about what I've got. When I try and plot
something like this with EZNEC, I'm seeing these really pointy, jagged
looking lobes on the 2D Elevation plot, and I'm not sure what that
means.

Thoughts?

Thanks,

Chuck
W1CEW

means it will work - after all - you can't reshape the yard.
put it up

"Chuck W." wrote in message
ups.com...
I've been working on a horizontal loop, about 210 feet of wire. I've
read that the shape isn't particularly critcal. That's good because my
yard isn't anything close to symmetrical!

Anyway, I've got one angle where the wires are coming together at an
angle that is somewhat less than 90 degrees. If you can envision a
classic "kite" shape, that's about what I've got. When I try and plot
something like this with EZNEC, I'm seeing these really pointy, jagged
looking lobes on the 2D Elevation plot, and I'm not sure what that
means.

Thoughts?

Thanks,

Chuck
W1CEW

If you see pointy, jagged-looking lobes, decrease the plot step size.
That's the "Step Size" selection in the main window.

Roy Lewalle, W7EL

Chuck W. wrote:
I've been working on a horizontal loop, about 210 feet of wire. I've
read that the shape isn't particularly critcal. That's good because my
yard isn't anything close to symmetrical!

Anyway, I've got one angle where the wires are coming together at an
angle that is somewhat less than 90 degrees. If you can envision a
classic "kite" shape, that's about what I've got. When I try and plot
something like this with EZNEC, I'm seeing these really pointy, jagged
looking lobes on the 2D Elevation plot, and I'm not sure what that
means.

Thoughts?

Thanks,

Chuck
W1CEW

FWIW, I'm feeding with about 60 feet of window line to a 4:1 balun and
then to about 80 feet of Coax. My plan is to replace a good bit more
of the coaxial line with the window line when I get around to it.

My assumption is that this set up would be best for multi-band
operation.

73,

Chuck
W1CEW

mine is pretty close to a true quad. cut for 80m. fed with 450 ladder line
to a tuner. i like it. it gets kinda touchy on the higher bands. but for 80
and 40, it's the best thing i have ever used. lowest corner is about 15 to
20 foot off the ground. highest is about 45.

i agree, put it up and go with it. you'll soon learn which direction it
"hears" the best.

--
Michael Prevatt " A clean hamshack is a sign
Bartow, Florida of a sick mind...."
Amateur Radio Callsign: KU4YP
Navy/Marine Corps Callsign: NNN0AAL
"Chuck W." wrote in message
oups.com...
FWIW, I'm feeding with about 60 feet of window line to a 4:1 balun and
then to about 80 feet of Coax. My plan is to replace a good bit more
of the coaxial line with the window line when I get around to it.

My assumption is that this set up would be best for multi-band
operation.

73,

Chuck
W1CEW