are Apples and oranges, guys. The forces and materials used for tower guying and utility pole applications are TOTALLY different and non-interchangeable. Piece of mind resulting from proper design an
big 25, standard True enough but trees are basically free. But the biggest advantage of trees over towers is that trees are NOT REGULATED. There are virtually no ham-antenna-in-trees regulations in a
That's the stuff you want, isn't it?!? When you rent the impact hammer for installing the anchor bolt holes, the rental place will probably have the industrial strength epoxy you need. The stuff is s
I hope this was tongue-in-cheek. Yes, trees move in the wind - they're supposed to, that's how they shed wind forces. If you've topped a tree to put up some sort of yagi on it, you've already removed
wondering *some* I don't know the exact nomenclature but the rivets F12 uses are different than the ones you get at the hardware store. As I recall, they are the kind where the mandrel pulls out; on
Very nice installation. Here's some historical info: Plus: With the addition of a shock absorber like this, the rotator capacity can be increased by something like 20-30% since it decreases the torqu
What's your county windspeed rating (available at <A HREF="http://www.championradio.com">www.championradio.com</A> under Tech Notes)? What's your proposed antenna configuration? It's hard to beat the
The measurements I sent were for the newer version of Phillystran which has been out for 10 or more years. You can tie a knot in the newer stuff - it's softer - and you can't in the older stuff. Chee
Well, yeah. Fine? Good enough for tower guys. well. There is a published "General Stress/Relaxation" graph for Phillystran HPTG. They say to "Tension the Phillystran tower guy assemblies to approxima
From Champion Radio ( <A HREF="http://www.championradio.com"> www.championradio.com</A> ) - thanks! That's based on 70 degrees F. Guys will loosen as the temperature increases and the guys expand and
His name is Ken Knight and is a good guy and has been helpful for all of my Phillystran dealings. He won't the The reasons for using EHS to the anchor is to prevent vandalism (they can be cut with a
Something that will answer a lot of your questions is our tribander comparison report. We haven't tested the SteppIR yet but you can can make some good inferences from the information presented. The
Well, that still trumps fixed element lengths. I've been told many times that element spacing in multiband yagis is a pretty small degradation but I'm not an antenna modeling guy. Nonetheless the ane
any No, there isn't anything like that at this time. This is a major project. Do you have the Rohn book? It has all the specs that you'll need to use - you can't do the installation correctly without
Well, I've had US Towers stamped for 85 MPH so it can probably be done albeit with very little antenna capacity left (I think one had 25 pounds capacity available). But of course that's fully extende
Okay - everyone gets and gives bad service once in awhile. OTOH I know personally of people who have gotten excellent above-and-beyond service from UST. Tower manufacturing companies are insurance-dr