Jim, I just used a bunch of Cadweld Plus One-Shots, and they work just like the old Cadweld One-Shots. They give you the same two-part charge in a blue bottle. My understanding is that Erico got a st
When this thread started, I meant to add my observations -- but I got too busy working on my tower project! Anyway, here in West Central New Hampshire, we have a mixture of soil, rocks, and even a li
The higher you can get the bottom wire off the ground, the better the antenna will perform. It should be at least 3 meters off the ground, preferably higher. 73, Dick WC1M ___________________________
I've been happy with my Force12 EF420. 73, Dick WC1M _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com ht
Hi. Finally started stacking my 110' Rohn 55 tower. We have 40' up with two sets of temporary guys (AB-577 stainless guys, actually, which work nicely for temps.) The permanent guys are attached to t
Thanks to all for the advice. The procedure was easier than I expected. I had two come-alongs already, so I got a third. That simplified the process and made it faster. I used my Klein grip to attach
recently calibrated Dillon several years ago for my tower column in CQ Contest magazine and they were within a couple of percent of each other. It might depend on what size cable you measured, how fa
With only four more sections to stack on my new 110' Rohn 55 tower, it's time to start thinking about how I'm going to install the antenna and rotor at the top. I'll have a 40-2CD on the mast just ab
This is basically right. I just finished installing a 110' tower on land that slopes pretty steeply -- over 30' elevation change from the downhill anchor to the highest uphill anchor. First, I determ
Simple question: do you prefer using cable ties (UV-rated), black tape or both to secure hardline, coax and control cables to your tower? I've seen all three methods in various installations and am i
I recommend Buryflex instead of LMR-400 or LMR-400U (Ultraflex.) I've tested all three cable types and Buryflex is by far the most flexible. LMR-400U isn't as flexible as the name would suggest, espe
I read somewhere that you should thread the cable through the guy thimbles, to hedge against a turnbuckle failing. _______________________________________________ ____________________________________
That's what I did, more or less. I checked and corrected plumb after installing each set of guys, including the temporary guys (pier pin installation.) I wanted to make sure the tower wasn't vastly o
I used a manual swaging tool to make new guys for extending an AB-577 to 75'. Although visual inspection isn't conclusive, I couldn't see any difference between the manually swaged sleeves and the on
Alternatively, you could put the top guys at 95'. According to the Rohn catalog, that would raise the specs on the tower from 90 MPH to 110 MPH. It would also put your top guys only 5 feet below the
Dave, I've seen the Array Solutions verticals at NT1Y. The aluminum tube elements are very heavy duty. I don't recall the diameter at the base, but they must be on the order of 4"-6". In any case, th
I don't want to be contrarian, but has anyone seen a tram line made of reasonably strong rope break? Has anyone calculated the actual forces on the tram line? For example, the breaking strength of 7/
Eric, Thanks for the story and the numbers. I've seen conflicting data on web for the safe WLL (working load limit) for my 7/16" 3-strand nylon rope. While the breaking strength is consistently repor
Well, that's quite a difference from 738 lbs and 602 lbs, respectively! I'd hardly call these "enormous" forces, as some have said. Perhaps 3-strand 7/16" nylon rope would have been OK after all. St