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#11
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Is that pole self-supporting? How do you put it up and how do you take it
down? wrote in message ps.com... How tall is your antenna going to be? I'd enjoy having an 80 foot vertical for 160 through 40 but that's just not going to happen. I'm looking for low visual impact here.. How about 60 feet? http://www.spiderbeam.net/sb/images/...08_18mpole.jpg My approach, since it's a low band antenna, is to put the black fiberglass pole at night, goes up just before dusk and down in the morning... I have the 40 foot version.. I don't know if you're looking for stealth or just low-profile. I'm not antenna restricted or anything, but I don't see any reason to make my neighbors look at the vertical all the time. Dan |
#12
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On Sun, 15 Oct 2006 21:17:50 -0600, Hank Zoeller
wrote: John Ferrell wrote: Your project has a lot in common with my ongoing 40-160 meter vertical project. I am curious about what remote tuner you are planning. Hi John, The coupler is a Harris RF-601. I suspect the Harris would match this antenna on 80 and maybe even 160 but I have no illusions about getting much radiation out of it on those bands. My intention is to use in from 40 through 15 meters. How tall is your antenna going to be? I'd enjoy having an 80 foot vertical for 160 through 40 but that's just not going to happen. I'm looking for low visual impact here.. I started with a 28 foot radiator and 3 radials. The focus has been on the radiator, not the radial system. It has been easy to deal with in both modeling and testing on 40M. The 40M (at 50') dipole included in my A3S beam does seem to outperform it. That may simply be due to the lower angle radiation of the vertical. On 80M the 28' vertical does not seem worth much compared to a dipole at 45 feet. And the dipole is resonant and well behaved. At 160 meters it is tough to feed. Or may be impossible from my perspective. It models OK, but matching schemes seem to be awkward and inefficient. My latest idea is to use a vertical wire from the base of my tower and bend it over at the 45 foot point and then horizontal to a tree. If it models well, I will put it up and test it. I live in the country and have several acres to work with. John Ferrell W8CCW |
#13
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It's telescoping friction fit fiberglass like those fiberglass fishing
poles everyone's using for portable antennas, just much heavier duty. I just guyed the bottom section of mine (40 inches up) with a few tent stakes and that's enough to support it in a breeze at least. I'd make a good base support of some kind if you'd leave it up in the wind, but I don't. If the WX is bad I take it down. We'll have to see about the winter, I might want to keep it up in bad winter weather... bad summer weather always means thunderstorms, and therefore, QRT! Dan Is that pole self-supporting? How do you put it up and how do you take it down? |
#14
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What? Haven't got a buck?
Check out www.TeslaRadio.org we got some 200 acres of salty marshy QTH with two story building and 40 rhombics for a $1. We are looking for extra hands and brains to help with restoration and operating. I just put some more pictures and partial drawing of antenna farm (under location -maps - site survey). 73 Yuri, K3BU.us "Hank Zoeller" wrote in message ... Yuri Blanarovich wrote: Simple rule for (non resonant) radials in or on the ground: 1. Mo' - da better 2. Longer the better. 3. Better to use (insulated) wire on the surface than buried. Just stretch it out and let the grass grow over. 4. Water before contest or major DX hunting. 5. Forget the above and set it up on the salty beach. All good advice. Well, except for #5. Can't afford beachfront property! -- 73, HZ |
#15
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On Mon, 16 Oct 2006 21:14:55 -0400, "Yuri Blanarovich"
wrote: What? Haven't got a buck? Check out www.TeslaRadio.org we got some 200 acres of salty marshy QTH with two story building and 40 rhombics for a $1. We are looking for extra hands and brains to help with restoration and operating. I just put some more pictures and partial drawing of antenna farm (under location -maps - site survey). 73 Yuri, K3BU.us Hello Yuri, Just checked out the Tesla site--veerrry impressive! And congratulations on founding the Tesla Radio Foundation--Bravo! Tesla was indeed a great contributor to our art and science, and I agree that he has not had the recognition he deserved. You are performing a splendid service. And what a great site for a ham station--the old WOO station! Hope you can put those rhombics back in operation. I've just committed one of the seven deadly sins--I'm green with envy! Walt W2DU |
#16
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Hi Walt,
Thanks for your kind comments. You can change your color to tan, come on down and catch some sun tan while inspecting the rhombics. Looks like God is good to me, after all the forced absence from radio and search for new QTH and place for Tesla, we were rewarded. So far lot of cleanup and fixing, but the potential and fertile salty grounds for the antennas are just dream come through. Recently we had bunch of high tides and flooding, as can be seen from the pictures, but usually over the winter the tides subside and it is easier to walk around and do some antenna fixing. It will be interesting to compare some classics vs. rhombics and how the modeling reflects the reality. We are looking for hands and/or brains to join our club, no dues, just sweat or brain equity to get it rolling. 73 Yuri, K3BU "Walter Maxwell" wrote in message ... On Mon, 16 Oct 2006 21:14:55 -0400, "Yuri Blanarovich" wrote: What? Haven't got a buck? Check out www.TeslaRadio.org we got some 200 acres of salty marshy QTH with two story building and 40 rhombics for a $1. We are looking for extra hands and brains to help with restoration and operating. I just put some more pictures and partial drawing of antenna farm (under location -maps - site survey). 73 Yuri, K3BU.us Hello Yuri, Just checked out the Tesla site--veerrry impressive! And congratulations on founding the Tesla Radio Foundation--Bravo! Tesla was indeed a great contributor to our art and science, and I agree that he has not had the recognition he deserved. You are performing a splendid service. And what a great site for a ham station--the old WOO station! Hope you can put those rhombics back in operation. I've just committed one of the seven deadly sins--I'm green with envy! Walt W2DU |
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