It's probably junk... you can check it but if all the balls have gone over to one side, either there's a retainer that you've pulverized or you've actually lost balls from the thing. Doesn't sound li
Those sections aren't looking very stainless to me. They're not looking very rusty, either, but I think it's just a good galvanize job. Dan _______________________________________________ ___________
Yeah, rec.radio.amateur.antenna has just gotten obliterated in the last couple of weeks. _______________________________________________ _______________________________________________ TowerTalk mail
Soapy water kills 'em pretty quick... they breathe through their exoskeletons and it clogs them up. It's good for shooting them out of the sky and you don't have to worry about getting it in your eye
I wanted to mention that I've succesfully soldered to some aluminum flashing using the following method, which was inspired by the motor oil and brush posts here. Put down a big bead of rosin core so
In Japan, it might have more to do with earthquake survivability than wind. Awesome, though! Dan _______________________________________________ _______________________________________________ TowerT
I would second this, and you should probably consider building a low-loss, high Q loading and matching network for 160 and (possibly) 80. A tapped-coil matching network with a large inductor wound i
"the money saved (compared with buying a complex multiband antenna) will be spent on an auto-ATU to go at the foot of his pole." And the Titanex vertical in question is simply a 41 foot stick of alum
"as the tower leaned over into the trees, it had enough leverage to move the entire base within the (somewhat sandy) soil. To me that was a foundation failure." Maybe so, but it sounds like it might
It's not worth getting the 316. 304 holds up fine; I've seen pieces left outside for years with no corrosion. Even in a marine environment, honestly, I'd expect the salt spray would eat four antennas
You could redesign the A2706S to work on the A3S's boom. It won't interact much with the ELEMENTS provided you're talking about vertical and not horizontal polarization. However, the boom for the A3S
I'm wondering something, as someone who's spent graduate school building big machines, but also someone who's never done anything with a real tower. It seems to me that a good approach would be a to
John, I guess the coupler also provides the lateral forces to keep the bottom of the mast centered in the tower? Thanks for the input. From the responses here it does seem that it's popular among the
And remember, if you're going to do your own engineering on an aluminum tower, make sure you understand fatigue limits. What do you suppose the manufacturers of aluminum towers do? Do they just desig
I built a 20m Moxon Rectangle out of fiberglass fishing poles and wire and had a plan to put it on one of those 30 foot push up masts with guys and ground-stake style anchors as a semi-temporary inst
Wow, that's over the top! Great looking array though... _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com
I think it actually is 3/4/4... The top of each H vertical is Rohn 25G telescoped into 45G, and I think the top antennas are 3 element, from what I remember of the pictures. There actually ARE finish
"I don't think on half wave is the real problem point" Agreed. I looked at patterns for my 40 foot base-matched vertical: http://www.n3ox.net/projects/lowbandvert I found the same thing, for a 40 foo
Three quarters of a wavelength is too long for DX work. I know it's funny, but 0.7wl is OK, 0.75WL has high angle lobes. It probably doesn't matter much on 10m when the band is open, because the ban
Put a locknut on the locknut, and so on, all the way down to infinity. _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk