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This may be completely out-to-lunch, but has anyone considered/built a non-resonant heaxbeam with a closely coupled tuner?? I am extremely space limited, so I can't even put up a full size 20m hexbeam, but I definitely want to get on 20m and possibly 40m with the hex.? I was thinking of basically having a tuner very close to the hex feedpoint (ladder line coupled?).? I'm sure I'll lose efficiency, but will it work?? Is it even worth it?
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Thanks in advance,
73, Greg, KM5GT
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Just add some coils to make it resonate.?
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On Sep 16, 2024, at 09:29, Greg, KM5GT via groups.io <GregTilford@...> wrote:
? This may be completely out-to-lunch, but has anyone considered/built a non-resonant heaxbeam with a closely coupled tuner?? I am extremely space limited, so I can't even put up a full size 20m hexbeam, but I definitely want to get on 20m and possibly 40m with the hex.? I was thinking of basically having a tuner very close to the hex feedpoint (ladder line coupled?).? I'm sure I'll lose efficiency, but will it work?? Is it even worth it?
?
Thanks in advance,
73, Greg, KM5GT
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Well, it can sort of be done.? As long as you don’t mind possibly losing multi-band capability and a useful pattern.? My vote would be to try a simpler design. ? Gene NG1H ? ?
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From: [email protected] <[email protected]> On Behalf Of Greg, KM5GT via groups.io
Sent: Monday, September 16, 2024 8:30 AM
To: [email protected]
Subject: [hexbeam] Non-Resonant Hexbeam?? This may be completely out-to-lunch, but has anyone considered/built a non-resonant heaxbeam with a closely coupled tuner?? I am extremely space limited, so I can't even put up a full size 20m hexbeam, but I definitely want to get on 20m and possibly 40m with the hex.? I was thinking of basically having a tuner very close to the hex feedpoint (ladder line coupled?).? I'm sure I'll lose efficiency, but will it work?? Is it even worth it?
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You could algo think in linear or capacitive loading to ensure less losses.
Just add some coils to make it resonate.? ? This may be completely out-to-lunch, but has anyone considered/built a non-resonant heaxbeam with a closely coupled tuner?? I am extremely space limited, so I can't even put up a full size 20m hexbeam, but I definitely want to get on 20m and possibly 40m with the hex.? I was thinking of basically having a tuner very close to the hex feedpoint (ladder line coupled?).? I'm sure I'll lose efficiency, but will it work?? Is it even worth it?
?
Thanks in advance,
73, Greg, KM5GT
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An alternate design that might give you what you want is the Moxon Claw. ? Check out VK6PH writings on the design.? It’s also discussed in Moxon’s HF Antennas for All Locations.
Clayton Nall
Cell: (617) 850-2062
On Mon, Sep 16, 2024 at 8:07?AM Rodolfo Perez Hernandez via <ea7aqv= [email protected]> wrote: You could algo think in linear or capacitive loading to ensure less losses.
Just add some coils to make it resonate.? ? This may be completely out-to-lunch, but has anyone considered/built a non-resonant heaxbeam with a closely coupled tuner?? I am extremely space limited, so I can't even put up a full size 20m hexbeam, but I definitely want to get on 20m and possibly 40m with the hex.? I was thinking of basically having a tuner very close to the hex feedpoint (ladder line coupled?).? I'm sure I'll lose efficiency, but will it work?? Is it even worth it?
?
Thanks in advance,
73, Greg, KM5GT
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If you have a good tuner, you can tune just about anything, but it doesn’t mean you’ll a decent signal. I’m not aware of a shortened 20m hexbeam being offered. ?Have you considered a cobweb or MA5B antenna? ?Both are still available at DX Engineering
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build a vertical Moxon instead.
Cliff K6CLS
On September 16, 2024 6:29:50 AM PDT, "Greg, KM5GT via groups.io" <GregTilford@...> wrote:
This may be completely out-to-lunch, but has anyone considered/built a non-resonant heaxbeam with a closely coupled tuner?? I am extremely space limited, so I can't even put up a full size 20m hexbeam, but I definitely want to get on 20m and possibly 40m with the hex.? I was thinking of basically having a tuner very close to the hex feedpoint (ladder line coupled?).? I'm sure I'll lose efficiency, but will it work?? Is it even worth it?
?
Thanks in advance,
73, Greg, KM5GT
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An easy low profile antenna would be a marine SSB vertical with the AMU at its base just like a boat. You'll have to put out radials but they don't have to be straight.
I use the MFJ 500W AMU but they'll be difficult to find now. I think the only company offering remote AMUs is LDG. I forgot about Icom.
___
Sent from my two-way wrist watch
73 de W3AB/George
build a vertical Moxon instead.
Cliff K6CLS
On September 16, 2024 6:29:50 AM PDT, "Greg, KM5GT via groups.io" <GregTilford@...> wrote:
This may be completely out-to-lunch, but has anyone considered/built a non-resonant heaxbeam with a closely coupled tuner?? I am extremely space limited, so I can't even put up a full size 20m hexbeam, but I definitely want to get on 20m and possibly 40m with the hex.? I was thinking of basically having a tuner very close to the hex feedpoint (ladder line coupled?).? I'm sure I'll lose efficiency, but will it work?? Is it even worth it?
?
Thanks in advance,
73, Greg, KM5GT
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On Mon, Sep 16, 2024 at 06:29 AM, Greg, KM5GT wrote:
This may be completely out-to-lunch, but has anyone considered/built a non-resonant heaxbeam with a closely coupled tuner?? I am extremely space limited, so I can't even put up a full size 20m hexbeam, but I definitely want to get on 20m and possibly 40m with the hex.? I was thinking of basically having a tuner very close to the hex feedpoint (ladder line coupled?).? I'm sure I'll lose efficiency, but will it work?? Is it even worth it?
?
Thanks in advance,
73, Greg, KM5GT
The Google Earth image (March 2024) for your FCC ULS address of record is displayed below.
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You could put a l on your roof to mount a HEXBEAM antenna.? Unless you are facing antenna restrictions,? it appears you have ample space for different types of multiband HF antennas.
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Carlson low-profile tower.
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Fred, NC4FB
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My non-resonant K4KIO hex up about 15 feet to keep it hidden behind the house from the HOA cops when they drive up and down out street for inspections.? At this height, I've worked 3Y0J-Bouvet Island on 17m FT8.
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73 de KH6DC
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The K4KIO says the antenna requires no tuning, ergo it most be resonant at the frequencies installed.
--- Ciao baby, catch you on the flip side 73 de W3AB/GEO AFA9GB, WQBQ497
WA2LSI, KE6RJW, W6B, W7B,? AAR9AG http://www.w3ab.org Stay away from negative people. They have a problem for every solution ___ A Einstein
On Monday, September 16, 2024 at 01:34:50 PM PDT, <kh6dc@...> wrote:
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My non-resonant K4KIO hex up about 15 feet to keep it hidden behind the house from the HOA cops when they drive up and down out street for inspections.? At this height, I've worked 3Y0J-Bouvet Island on 17m FT8.
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73 de KH6DC
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Sorry, I mean it was resonant.? VSWR on all bands (6-20m) is <2:1.
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I'd say just put up a Cobweb antenna. It's better than any other alternative given your space constraints. You could try a MA5B mini beam but you'll probably do better with DL on a mast. LOL!
Best Regards,
Jim N9WW
James Chaggaris
President
PowerOne Corp./PowerOne Environmental
2325 Dean St. Suite 800J
St. Charles, IL 60175
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When you say you are space limited what do you mean? I had a lot in california that was 50x150. I tried various dipoles with little success. ?But a friend suggested placing a hex on my roof. I had a flat roof so i put a 20\15 full size traffie hex on a 12' mast, guyed to the house. Problem solved.?
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Hex's can be temperamental. The ends of elements come close, so spacing is important. SWR is less important. If you can get a hex up 10 feet over your house you will do fine. But use known dimensions for elements. I recommend building it to Traffie hex dimensions and reverse W design.
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KX1G
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Hi ,
The Traffie? Hex is? ?No1 on my list I have got mine up for 22 years still on the origanl? element and it was the? Hex which was on Bouvet Island? with Chuck? Brady in 2000 and still runs as did back then at only 8 m? high if I can get a new I would take it
, it is the BEST.
Can not GO WRONG? with it,
73,
Pieter,
ZL1PDT
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When you say you are space limited what do you mean? I had a lot in california that was 50x150. I tried various dipoles with little success. ?But a friend suggested placing a hex on my roof. I had
a flat roof so i put a 20\15 full size traffie hex on a 12' mast, guyed to the house. Problem solved.?
?
Hex's can be temperamental. The ends of elements come close, so spacing is important. SWR is less important. If you can get a hex up 10 feet over your house you will do fine. But use known dimensions for elements. I recommend building it to Traffie hex
dimensions and reverse W design.
?
KX1G
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I should have mentioned that I recently changed my QTH to an HOA restricted neighborhood. In my driving around I’ve only spotted one ham antenna, and it was a cleverly hidden 2m/70cm vertical. So I have to be super stealth, even possibly an attic antenna.?
73, Greg, KM5GT?
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now that is some thing , only way you may get away is maybe a End
Fed 10-40m in you roof that is if you do not have a tin roof
good luck,
Pieter
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I should have mentioned that I recently changed my QTH to an HOA restricted neighborhood. In my driving around I’ve only spotted one ham antenna, and it was a cleverly hidden 2m/70cm vertical. So I have to be super stealth, even possibly an attic antenna.?
73, Greg, KM5GT?
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I wanted to comment for the group and any potential new hexbeam owners that may be reading this thread. A friend and I put up a KIO hexbeam In June. The antenna is at about 30 to 32 feet above the ground mounted on a 6 foot W8IO rooftop tower. ?No tuning or adjustments were necessary with the antenna. ?SWR is about 1.1 to 1.4.1 (mostly flat everywhere) on 20-6m. ? A hexbeam is much too large an antenna to put up in an HOA restricted neighborhood. ?I don’t see the Buddihex as a possible consideration, either. ?IMO a cobwebb antenna or even a linked dipole are antennas worth considering.
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I should have mentioned that I recently changed my QTH to an HOA restricted neighborhood. In my driving around I’ve only spotted one ham antenna, and it was a cleverly hidden 2m/70cm vertical. So I have to be super stealth, even possibly an attic antenna.?
73, Greg, KM5GT?
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Weather station HF vertical antenna (replica of a weather station on a mast).
Purple Martin Birdhouse HF vertical antenna.? Purple Martin birdhouses are typically placed 12'-25' AGL.
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Fred, NC4FB
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A Cobweb is like 9ft (3m) could tell them it is the wife,s? wash line and it is omni 10-20m no 40m end fed 10-40 m 49-1 transformer or 9-1 with tuner at feed point in roof space ,
the 9-1 you can have a few diffrent lentgh of wire 10.7 m to16.15m? there is? a list some body did make start? @ 7.38m? up to53.34 m long, the longer the better
73?
Pieter,
ZL1PDT
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now that is some thing , only way you may get away is maybe a End
Fed 10-40m in you roof that is if you do not have a tin roof
good luck,
Pieter
I should have mentioned that I recently changed my QTH to an HOA restricted neighborhood. In my driving around I’ve only spotted one ham antenna, and it was a cleverly hidden 2m/70cm vertical. So I have to be super stealth, even possibly an attic antenna.?
73, Greg, KM5GT?
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Alan Brown
Rodolfo Perez Hernandez
Cliff Sojourner K6CLS
GEO BADGER
Tony KX1G