What happens if a full wave loop comes up high in the middle?

[mr_fx]

I have been considering building a 160m full wave loop and raising it up in the air in the middle (kinda like an inverted V)

I am considering this for a few reasons:

1) space
2) makes things a little more simple


so what issues do you see with a setup like this?

 

[W5LZ]

The worst thing I see about it is that I don't have the room to do it! After that, it should be 'do-able'. No idea how it will perform but I'd sure have to find out.
- 'Doc

 

[Robb]

Well, of course the polar pattern will change. But this will be affected by so many other things too. Such as height above ground, nearby metal objects, and whether or not you run a ground loop below it.

Loops can be made in hexagons and many other shapes too. They don't have to be equal length on the four sides. But then, their polar pattern will also be different too.

But if you have a lot of baling wire just laying around . . .

 

[mr_fx]

But if you have a lot of baling wire just laying around . . .

lol I do

 

[wavrider]

Experiment.

That is the fun side of the hobby, building antennas.

If you get bit by the bug you will eventually try about every type of wire antenna there is and maybe a few of your own experiments.

You DAMN SURE are not going to know how it performs if you don't build it and try it

Get it up in the air as best as you can and make some contacts.

 

[mr_fx]

I would say my first antenna was an experiment... works quite well. I just want some ideas what to expect before I start the experiment.

 

[Beetle]

Might be that nobody's ever built an antenna quite like the one you have in mind. If so, and since no two "identical" antennas are after they're installed, the best advice available is "experiment".

 

[Robb]

http://www.k5rcd.org/hor loop instruct.htm

 

[BJ radionut]

This was one of my best ever!

http://www.worldwidedx.com/amateur-radio-antennas/37474-40-m-wire-antenna.html

mr FX: Try this one on for size....it worked really well even on 75m....
Never tried it on 160....
I have a "Backfired" Phased Dipoles(2)(4 element) array for 75m now hung the same location as this antenna was positioned...
I'll build the 8 element version again when my second tower goes up....:headbang
All the Best
BJ

Oh by the way...a EDZ cut for 75m(@) 20ft....
Will sound like you did buy a kilowatt amp over what you have now

 

[KC9Q]

MR Fix,

Here's a variant: http://www.worldwidedx.com/amateur-...sting-variation-delta-loop-folded-dipole.html

Loop antennas are very forgiving and work in the most oddball parameters. Put it up and see what happens.

Mike

 

[mr_fx]

the other option is to shoot the wire into my neighbor's trees and / or shoot it over the rail road tracks at the back of my property... but it would have to be high enough to avoid the trains...

 

[mr_fx]

plan for 160m loop layout (wire in red)

 

[Robb]

Hmmm . . . not sure that sharp angle on the right side will make this work . . . maybe consider a 80m loop and locate it on the left side of the diagram instead . . . keep it away from the steel garage . . . that should work; especially @ 45 ft high . . . but if you have enough baling wire . . .

 

[mr_fx]

Hmmm . . . not sure that sharp angle on the right side will make this work . . . maybe consider a 80m loop and locate it on the left side of the diagram instead . . . keep it away from the steel garage . . . that should work; especially @ 45 ft high . . . but if you have enough baling wire . . .

well I could bring the mount at the mast out a little bit and not tie into the tree in the middle of the picture as for the steel garage it will be at least 20 ft above it

 

[Happy_Hamer]

plan for 160m loop layout (wire in red)

Put the loop at shown on your picture,

Be aware of the length of the wire, a few inches/feet could make a difference when tuning.

Here is a link to an Excel Spread Sheet of wire lengths to AVOID

http://www.worldwidedx.com/cb-radio-modifications/28593-wire-antenna-lengths.html

This spread sheet was made for an Icom AH-4 tuner, but high voltages should be avoided no matter what tuner you are using, you didn't mention what you are using?

Read the directions and be sure you take note of the exact length of wire.

Have Fun