Do either or both of these rotors fit inside Rohn 25? I would be replacing a Ham IV mounted at the point in the tower where the top section meets the next section down. The lowest horizontal rung of
Hi Steve, I don't know if you recall, but we met briefly at your booth out in Dayton this year. I'm not down on the MFJ at all! I'm talking about it having a frequency tuning knob instead of a sweep
I'm afraid I won't be buying or recommending CushCraft due to poor customer service. I requested assistance troubleshooting my old CC ATB-34 tribander. The customer service rep also told me to just g
I'm in the middle of this anti-climb design problem, too. Also for Rohn 25. I'd like to hear about more advanced designs - with hinges that allow the panels to fold away from the tower. I climb rathe
You should probably talk to Fred K1VR and Chas K3WW. Both have had excellent results and swear by their TH6/7 stacks. Jim K1IR -- The Information Resource for Conferencing Professionals -- James S. I
Take a look at these pages: http://www.pmirope.com/workrescue/products/harness/harness.html http://www.caves.org/imo/default.htm I bought the Vario from Inner Mountain Outfitters - good price; in-sto
I have posted the Petzl PDF [~2MB] catalog from my site for anyone to download and review. http://www.designet.com/k1ir/TowerConstruct.htm Jim K1IR -- FAQ on WWW: http://www.contesting.com/towertalkf
This is tricky business. I did all the digging with a few friends. We ended up with holes exactly as we wanted them. But, It wasn't easy - and I'm still paying for it. New England soil is filled with
Call FARMTEK and get their mail order catalog. 1.800.FARMTEK Jim -- The Information Resource for Conferencing Professionals -- James S. Idelson President DesigNET International, Inc. 96 Morse Road Su
Get a catalog from mail-order house Farmtek [1-800-FARMTEK]. I replaced all the u-bolts on my tribander with parts from them. I thought the prices were ok. Jim K1IR -- The Information Resource for Co
Does it work? Is it difficult to build? Worth the effort? Regards, Jim K1IR -- The Information Resource for Conferencing Professionals -- James S. Idelson President DesigNET International, Inc. 96 Mo
Pat, Regarding the following message: how the positioning of guy anchor points changes with sloped ground. Does one try to keep constant angle by all guys to the tower, by changing the anchor radius,
Rohn strongly states that steel should be used for temporary guys. If you are using Big Grips, it is easy to employ an upper set of guys as your temporary guys. Just lay them out and attach them to t
14:20 EST Just heard Ira Flato, of NPR's Talk of the Nation - Science Friday, say that they will be discussing the end of Morse Code this afternoon. This is a call-in show! Who will call in and let t
RE: Refurb Your Rohn TB-3 Thrust Bearing Refurbishing Your Rohn TB-3 Thrust Bearing Jim Idelson, K1IR In the last two weeks, I've refurbished two Rohn TB-3 thrust bearings. One was running very rough
I hope this is now easier to view on your browser . . . Refurbishing Your Rohn TB-3 Thrust Bearing Jim Idelson, K1IR In the last two weeks, I've refurbished two Rohn TB-3 thrust bearings. One was run
Bert, I am going through the same thing right now. You are interpreting the drawing correctly. My engineer has specified a lattice made up of the the L-shaped rebar as you described - 1/2" diameter (
Hi all, Let me begin by informing you that I am fully aware of the K7LXC Prime Directive. I am making plans for the top section, rotor, mast and thrust bearings in a new Rohn 25 installation. The mas
Thanks to everybody who responded to my thrust bearing mounting idea. Many of you considered the idea very carefully and crafted thoughtful, detailed responses. Bottom Line: Don't mount the TB-3 thru
Hi, structural experts . . . need your assistance, please. I have frequently heard about the use of I-beams to elevate guy anchor points, but I've never actually seen it done. Now I may be in a posit