At 08:41 AM 1/22/2005, Alan NV8A (ex. AB2OS) wrote: Probably for the same reason that US companies are, increasingly, run by people who have no real knowledge of the company's products or production
Every once in a while I run across something that is really cool and feel compelled to share it. In RF design and antenna design you end up needing a calculator for a lot of the calculations. I did a
Precisely the reason that grease (and tape) isn't the kind of thing I was seeking. The whole goal here is to make portable operation easy enough that it's not an ordeal (FD can be an ordeal.. it's on
There was the 1/2 wave dipole sloper array that drove any one element and terminated the others in long enough coax so that the open end reflected enough inductive reactance to the other elements to
Steve, are you SURE of this? Because the serious J-bolts that I have seen for tower work have been a LOT better than All-Thread. And in fact the Rohn SSV drawings D-700200 and D-700300 specify that
Steve-- Can't speak for any other tower company. Almost all of my experience is with Rohn stuff. And I have a 140 ft SSV that I hope to get up now that I have moved to TX. But the All-thread I have s
MY experience has been just the opposite through a number of lightning strikes. (I know there is no rule that says there will never be exceptions and this claim is supported by only a few incidents.
Hi, Bruce-- Sorry about your antenna. I just HATE it when things are not very well designed. I didn't understand your comment about it NOT being metal fatigue because of a lack of discoloration? I h
W5UN has tilted up 140 ft of irrigation pipe using the falling derrick method. Dave sent me a few photos that I can share with anyone interested, but if you want real details you will want to contact
I grab the ground rod with a Klein grip and pull up on it with a Come-Along hooked to an 8ft piece of pipe. As long as the pipe is vertical and standing next to the ground rod there is little side fo
Actually I'd just grab them with my TEETH and stand UP! I could pull out an 8 ft ground rod in less than 10 seconds! 10 footers took two BITES. --John W0UN ___________________________________________
Sounds like you are getting to the point of needing some professional help on the installation. And any company qualified to do this job would have their own gin pole. But if you insist on doing it y
I've cut a lot of rebar -- don't waste time and money with a Sawzall. Not the right tool. Their are three ways I cut it. 1) Use an abrasive cutoff saw-- I use a 14 inch Makita -- the blades are rela
Hey, those insulators are COOL. I am not sure what for, but I think they would bring out the crazy artist in me. Of course the kind of art I like are things like the long line of half-buried Cadillac
This works, but be careful. If you place too many layers of tape, that are stretched too tightly, they will have a tendency to crush foam coax over time as the tape tries to return to its original le
Gee, Dan-- I don't know what Nello offers, but Rohn still shows it in their on-line catalog. It is my understanding that Rohn is alive and kicking as part of Radian. http://rohn.net/ You can click yo
OOPS-- I was in too big of a hurry and the previous link was for the plain guy bracket. Here is the correct link for the STAR guy bracket. http://rohn.net/ROHNNET/rohnnet2001/catalog/pdfs/Hardware/HA
Gene-- As supplied, the tower had a critical, even fatal, flaw in the way the sections were joined together. The joints internal to a section were OK, although the thing looked a bit strange from som
AND -- the stuff is impossible to climb. Weak and hard to use -- so it just needs better marketing! --John _______________________________________________ See: http://www.mscomputer.com for "Self Sup
You can NEVER seal water OUT, only condensation IN. You must let it drain. So the secret is to allow the water to flow out where you want it to so that it never accumulates any significant amount of