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Ground plane question

The20poundhammer

Sr. Member
May 23, 2016
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McKee Ky
Ok looking for a omni thats going to last as long as possible. Going on top of a mast above a horizontal beam about 90 feet to the feed point. Looking for something that works and will last and handle power. Any suggestions?
 
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Ok looking for a omni thats going to last as long as possible. Going on top of a mast above a horizontal beam about 90 feet to the feed point. Looking for something that works and will last and handle power. Any suggestions?
Have you looked at zerofive ? 100 mph rated, around $500 for their 5/8
 
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No i had not looked at those pretty pricey but looks good. I am going to be using this for 11 meters and want something that lasts and will handle quite a bit of power
 
Dont think those 2 are what i am looking for.


Those are the only 5/8 antennas which can be used without radials. What are you looking for ?

I’ve had both? GM and IMAX on top of a horizontal yagi and perform really well. Usually Aluminum Vertical antennas without radials are not fabricated.

Tou can experiment with a antennas which come with radials, take them off and experiment with them. The beam below might act like a ground plane, improving performance on the vertical. Not too much info on the web.
 
2x on the BM Tech Shockwave.

For no radials I'd like to try one of these. No personal experience with one but the same guy that builds the shockwave makes them. He hasn't disappointed me yet.

https://davemadeamps.com/shop/ols/products/davemade-ground-plane-antenna
Unfortunately out of stock. Id like to try it too. I seriously dont need another gp antenna. Its all I can do not to bid on a gp on ebay. I really need a moderate size beam but this is interesting.
Are there any other sources for this?
 
Unfortunately out of stock. Id like to try it too. I seriously dont need another gp antenna. Its all I can do not to bid on a gp on ebay. I really need a moderate size beam but this is interesting.
Are there any other sources for this?

It looks like a sigma 4 or vector 4000. There was another version called the Davemade Birdcage. If you really want one I'd give Chris a call. He may not have any in stock but will probably build one.
 
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