I don't know what Stew's training recommended, but I can tell you that a full body harness with fall-arrest equipment is required for general tower work. Just a belt is no longer acceptable. 73, Dick
I have three AB-577s, one with a homemade (to spec) extension kit, so I'm quite familiar with them. There are a few odd things about the one listed on ebay, so I would urge caution for anyone interes
If I had it to do over again, I'd probably use 7-16 DIN on my 1-5/8" and 7/8" heliax runs. When I installed those runs back in 2006, I had a lot of trouble finding N connectors for a reasonable price
I have no way to prove this, but there's reason to believe that the noise problem is specific to the M2 controller (or, rather that it doesn't deal properly with the noise.) Green Heron told me that
Right! I did, and it works. 73, Dick WC1M The _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://li
This response is partly about the details of a significant lightning event and partly about the insurance company's response. I'm giving you a little more than you asked for because I think the detai
The rule of thumb is to use a conduit diameter that's twice the diameter of the cables. Your two coax runs together are 1". I don't know the diameter of Channel Master cable, but if it's close to 1/2
I have a somewhat different take on this issue. Though my own experience with remote control lends a lot of credence to Steve's position, sometimes the circumstances dictate a compromise. If you're i
I don't disagree. Someone needs to answer the phone, if only to explain that most of the personnel are at a trade show and will get back to you as soon as they return. Heck, in this day of cell phone
Try Ontario Surplus: http://www.ontariosurplus.com The wrench is part of the launcher assembly, so it doesn't show up on the parts list. But Ontario might have them. As I recall, a screwdriver works,
My favorite come-along is the Lug-All: http://www.hoistsdirect.com/lug-all%20cable%20hoists.htm (I didn't get mine from that vendor -- just a convenient Google result. Don't recall where I got mine.)
For some time I've been considering a safety cable system for my 110' Rohn 45 tower. I currently use a fall-arrest Y-lanyard with large gorilla hooks. While reasonably safe, the lanyard system requir
I took another look at the Black Diamond Y-lanyard with fall arrest. The model I saw at the show, which has a better lock-and-release mechanism on the gorilla hooks, isnšt available yet. Probably won
Of course, it depends on which SteppIR antenna you're talking about. FWIW, I have a stack of three 4-el SteppIRs. When set for 20m, the 4-el SteppIR is pretty-much the same as a standard 4-el yagi wi
Interesting that your town distinguishes between ham and commercial antennas. Our town does, too, sort of. There's a basic height limit of 35 feet, but it's waived for private, non-commercial antenna
That's the way my lightning protection is configured. The tower has it's own ground system consisting of a Ufer that bonds together the rebar, tower legs and 50' radials from each leg. 8' ground rods
You may have to adjust the controller calibration slightly, but that's normal even between the same model of rotor. Using remote relays, I share a single DCU-1 and control cable between two Ham IV ro
I can't address whether the combined windload is within specs for your tower. Someone else will have to comment. But if the antennas are closer than about 10 feet apart, you will get interaction betw
We used just such a rig back in 1997 when we hit a massive seam of ledge digging a 4' deep 260' long trench for conduit runs to the tower. My recollection was that it cost $750 per day and the machin
My feeling has always been that it's better to order premixed cement than to hassle with bags, water and mixers, especially if you need a lot of cement. Yes, it's more expensive, but you get professi