Co-phasing an Omni-Directional Antenna with a Directional antenna

[DualAntennas]

Co-phasing an Omni-Directional Antenna with a Directional antenna
What would be the results of say a Maco V-5000 Co-phased with a Maco 103c 3 element beam??????????????????
With this could I have about a 30 mile circle around me with SSB, plus directionality when I wanted it?
Anybody want to test this???

 

[Robb]

Co-phasing a vertical and horizontal polarized antenna would only become a mess of cancelled signals and a radiation pattern that would be unpredictable as the direction change with the beam occurs.

Fair to say that this is not a viable antenna solution.
Fair to say that there are no benefits, regardless if it is used for SSB or AM.
Fair to say that one might consider picking up a copy of the ARRL Antenna Book and crack it open at this time.


However, using an antenna switch between each antenna and selectively using either (one or the other antenna) of them will work out with many benefits.
That is what I do - BTW.
If you cannot get out 30 miles with the system you have; then there might be a problem with your radio.
Or your location.
Or your antenna.
Perhaps you should consider troubleshooting?

 

[Lil'Yeshua]

I'm getting out with a SS 1/4 whip mounted on a 37' tower 30 miles in quiet conditions. You Need beams to go further without power
I have a fellow CB'er who has a V58 60' up in a tree running 275 watts. He gets out 50-60 miles in quiet conditions

 

[w9cll]

Not worth the effort. Not to be rude but why are you fixated on phasing antennas? Trying to live up to your screen name?

 

[KC9Q]

Years ago DB Products built an antenna for VHF and UHF called a 'Keyhole' antenna. It used two vertically polarized 3 element yagis and one 3 dB omni antenna in the middle phased together to provide a somewhat omni pattern off the back of the two yagi's, and a extended bump-out from the front of the yagi's. I don't have an old enough catalog to get a picture of the antenna and pattern to show.

Mike

 

[DualAntennas]

Years ago DB Products built an antenna for VHF and UHF called a 'Keyhole' antenna. It used two vertically polarized 3 element yagis and one 3 dB omni antenna in the middle phased together to provide a somewhat omni pattern off the back of the two yagi's, and a extended bump-out from the front of the yagi's. I don't have an old enough catalog to get a picture of the antenna and pattern to show.

Mike

I was thinking something similar to get a keyhole like pattern
Anybody care to test this one?

 

[Beetle]

Co-phasing an Omni-Directional Antenna with a Directional antenna
What would be the results of say a Maco V-5000 Co-phased with a Maco 103c 3 element beam??????????????????
With this could I have about a 30 mile circle around me with SSB, plus directionality when I wanted it?
Anybody want to test this???

Why don't YOU test it? You're the one who's curious as to whether it might work.

 

[W5LZ]

I don't think I would care to test it so you go ahead. Then, you can tell us how it works!
- 'Doc

 

[DualAntennas]

somebody here has to have more time on thier hands than they need any takers to test this theroy????????

 

[KC9Q]

It may be a mechanical nightmare to do it with one yagi. Where/how does the omni antenna mount? That is the reason DB Products use two yagi's I believe. The other reason may be the additional gain of a pair of phased yagi's to provide the required gain for the antenna pattern. Just something to think about.

 

[Captain Kilowatt]

Someone needs to pick up a copy of the ARRL Antenna Book. The very thing he is talking about is in it under the section covering repeaters. A single omni phased, NOT CO-PHASED, ( no such term except in CB land) will produce a keyhole pattern and is only useful in very special situations. I honestly am getting the feeling we are being trolled here. Dual Antennas asked for recommendations to suit his needs yet rejects everything offered and continues to propose ideas that will in no way do what he wants. That's what I see anyway.

 

[Lil'Yeshua]

I got mine! :tongue:

 

[The DB]

I am curious as to why you are asking about all of these strange "cophasing" setups. Seriously, if there were anything to be gained from any phasing beyond what is commonly done and known someone would have found out about it a long time ago and would sell an antenna setup including those designs. Personally I think it is the name you chose that is driving you to ask about this stuff...

If you really want to see for yourself what these antennas can do, learn to model, or better yet, build them yourself. Then share the results, or not (after all it was you who did the work right?). Before you do any of that I would recommend reading a good book or three on the subject, such as the current version of the ARRL Antenna Book (22'nd Edition at the moment).

somebody here has to have more time on thier hands than they need any takers to test this theroy????????

Claiming you don't have the time doesn't impress me or anyone else. I can think of any number of other things to do with my time other than study antennas, make models, build antennas, and check these forums. If you really want to know about antennas and how they work YOU must take or make the time to learn about them. There is no substitute for time spent researching and studying, and I cannot do that for you.

Further, I don't know what theory your referring to here, but it definitely isn't antenna theory...

I honestly am getting the feeling we are being trolled here. Dual Antennas asked for recommendations to suit his needs yet rejects everything offered and continues to propose ideas that will in no way do what he wants. That's what I see anyway.

I am in agreement with this opinion.


The DB

 

[DualAntennas]

I am curious as to why you are asking about all of these strange "cophasing" setups.

Not Trolling I come from a family of truck drivers we're all about the Dual's.... Breaker...Breaker.... 1-9 for a radio check......

Trucker Language............

Break = I wanna talk

Go Break = Come'On Boy Talk!!!!

Most of us C B'er's are Country Boy's making Southern Conversation NOT HAM's

 

[W5LZ]

Oh, come on, you can do better than that...
- 'Doc