inverted v antenna

[kk4fpx]

I have a 40 meter inverted v antenna.Can I add a 10 meter v to the same feed point with out having a antenna tuner?

[KC9ECI]

Why not?

http://www.antennex.com/preview/notuner.htm

Google things like parallel dipole or fan dipole

[VE7DCW]

I have a 40 meter inverted v antenna.Can I add a 10 meter v to the same feed point with out having a antenna tuner?

I have a 3 band inverted V dipole (40,20,10, meter) fed with 50 ohm coax at the feed point operating without an antenna tuner.It's been up about 4 years now with no problems ........ works very well! :)

[NQ6U]

Yep, it'll work. It's called a fan dipole and you can include one for 20m or other bands in there as well. Just be sure you leave adequate space between the different antenna elements so they don't interact with each other. I can't remember the recommended distance but it should be easy enough to look up in the ARRL Antenna Book, something I recommend you buy. There's enough in there to keep you experimenting with antennas for the rest of your life if you're so inclined.

[kk4fpx]

I forgot to use the word fan in my search.Found severay good sites.Thanks!

[K7SGJ]

Yep, it'll work. It's called a fan dipole and you can include one for 20m or other bands in there as well. Just be sure you leave adequate space between the different antenna elements so they don't interact with each other. I can't remember the recommended distance but it should be easy enough to look up in the ARRL Antenna Book, something I recommend you buy. There's enough in there to keep you experimenting with antennas for the rest of your life if you're so inclined.


A spacing of at least 4 hectares should do it.

[NQ6U]

A spacing of at least 4 hectares should do it.

Hectare is a unit of area, Hector. You're thinking of furlongs, I think.

[K7SGJ]

Yes, I will be thinking of hectares, but not furlong.

[KC9ECI]

We're hams, aren't we supposed to measure in cubits?

[n2ize]

If you use balanced feed line and a link coupled tuner you need only cut it for 160, 75, or 40 and you'll be good to go on 20, 15, and 10. case and point, my inverted vee doublet) is cut for 75/80 metres and via the tuner it tunes, loads and performs great on 75, 40, 20, 15 and 10.

But if you want to go with a coax fed and no tuner you can do a fan dipole or something similar.

[kk4fpx]

Second try.Yes I'm using coax feed line with 6 inch 6 coiled balums on all my antennas.I'd like to try and contact some of you on 28.400 when get it back up.I'll be K4ECE.

[K7SGJ]

Second try.Yes I'm using coax feed line with 6 inch 6 coiled balums on all my antennas.I'd like to try and contact some of you on 28.400 when get it back up.I'll be K4ECE.

Some of the older Islanders have the same problem, however, it has nothing to do with antennas. :-D

[KB3LAZ]

If you use balanced feed line and a link coupled tuner you need only cut it for 160, 75, or 40 and you'll be good to go on 20, 15, and 10. case and point, my inverted vee doublet) is cut for 75/80 metres and via the tuner it tunes, loads and performs great on 75, 40, 20, 15 and 10.

But if you want to go with a coax fed and no tuner you can do a fan dipole or something similar.

I could never hold reasonable SWR on 40m with my 75m Vee. Worked wonders on 75/20m though. I have used fans as well with good results. Ended up putting up a loop for 75/80. I found myself transmitting on the loop and receiving on the Vee.

[w2amr]

Second try.Yes I'm using coax feed line with 6 inch 6 coiled balums on all my antennas.I'd like to try and contact some of you on 28.400 when get it back up.I'll be K4ECE.Huh?

[N2RJ]

If you use balanced feed line and a link coupled tuner you need only cut it for 160, 75, or 40 and you'll be good to go on 20, 15, and 10. case and point, my inverted vee doublet) is cut for 75/80 metres and via the tuner it tunes, loads and performs great on 75, 40, 20, 15 and 10.


There is a catch. Yes you can do that but you'll have nulls on the higher bands. It won't be omni.

But yes, it works in a pinch.

[KC9ECI]

What's a balum?

[VE7DCW]

What's a balum?

It's what you do when when water starts coming through a hole in the bottom of your rowboat :)

[kk4fpx]

Sorry I miss typed,I meant balun.lol

[WØTKX]

I recall an article by W4RNL (SK) showing antenna plots that show an Inverted Vee cut for lower bands and used on higher frequencies also quickly becomes a cloud warmer... When to far removed from the fundamental frequency it's cut for.

Not too useful on 10 meters. Make it a fan.

[kk4fpx]

Got my fan inverted v back up.instead of single point conection I seperated the 40 meter from the 10 meter by 6 inches.I haven't checked the swr yet but I made a contact with El Salvador on my 25 watt Radio Shack 10 meter transciever.

[WØTKX]

:clap:

And there ya go. Simple works quite well, eh?

[K7SGJ]

Some times, simple is the most fun of all.

[NQ6U]

Some times, simple is the most fun of all.

That's why people think I'm so much fun!

[WØTKX]

The Zen Stupidity of Ralph.

http://images.fanpop.com/images/image_uploads/I-m-With-the-Band-ralph-wiggum-123926_400_334.jpg

And of course, good 'ol Zippy. :lol:

http://zippythepinhead.com/Merchant2/graphics/00000001/2006/images/062106.gif

[n2ize]

There is a catch. Yes you can do that but you'll have nulls on the higher bands. It won't be omni.

But yes, it works in a pinch.

It works in more than a pinch. Other designs may work better depending on circumstances but, It's about one of the single best general purpose antennas you can install because it's simple, very inexpensive, multiband, and, if properly built, will give you a more than respectable signal. The important part is to get it up at least 60 feet or higher at the feed point. The ends should be anchored at least 15 - 20 feet off the ground. All to often beginner (or even some advanced) hams will set it up so that its only 10 - 20 feet off the ground at the feed point and the ends are almost laying on the ground and they'll match it to the transmitter with a balun. Then they wonder why their signal is locked in their back yard.

It won't be truly omni the higher up you go it may have some nulls but in the directions where it is effective it will give you a very respectable signal and will get you working some good DX.

My installation was far from perfect, a lot of twists and bends coming through the tree branches. The feed point was quite high up but the ends were anchored much lower than they should have been. Yet I was consistently amazed at the overall performance, even on the higher freqs..