I couldn't agree more with your observations. I think the commercial nature of the cataloge designs was one of the points Tom, N4KG was making. My comments, on this, were directed toward amateur use
In a previous post R.E. ROHN SPEC'S The 20/40 reference should be read 40/80, to be consistent with the subject discussion. I.E. that's really what I meant to say. Apologies for my error, hope it did
Ryan, Makes the head swim, eh? Welcome to the world of cookbook designs, and the notion that everything put in print is the gospel! It can be, when we understand it, and have all the information. The
Hi Saad, For your tower, placing the antenna at 36' will be the same as having 1/2 of that area at 72'. You need to add the mounting hardware area. You didn't ask for the rest of this, it is only for
Hi Roger, Sure makes sense that the post weaving galvanize is best. I have a question for our experts. Is galvanized steel wire going to provide reasonable/acceptable performance in the ground screen
Hi Joe, Ok, here's right to the point. We are using invalid antenna area figures to load our towers and most folks don't even know it! Tower specifications are looking for one value (the apple) and m
Hi Jerry, Nope, that's not what was meant. Most towers are designed in accordance with published specifications. Amateur antennas are not. The tower guys are using projected areas because that's the
Hi Mike, I think Tom, N4KG mentioned this in his comments. The Rohn HW tower sections are just 25G tubes with a wider face and larger bracing. This makes the sections stiffer than the 25G. The Rohn d
Re: [TowerTalk] t2x, c31xr and ef240x thread 09-01-99 Hi All, Fun stuff eh? To bad this thread hasn't carried a more descriptive subject heading. Wonder if anyone will find it later with the search e
Hi Greg and All, Longer than usual, but offered for those who chose to follow such stuff...considered saying nothing, but opted for saying just enough to mean something to those interested. Lot's of
Hi Bert, Bummer, I hate it when this happens! The material in your cleaner has obviously attacked the coating. I'd wager a guess that the coating on the MN-2700 is an enamel. I've got one, so I'm kee
Hi Eric, Aramid is light, and aramid is strong, but aramid elongation is ever equal to steel at the same size. Most steel materials have an elastic modulus of around 29 Msi, Kevlar 49, used by all bu
Hi George, Good question, and it certainly appears that something is different! I'm sure there is a good answer, although I don't have all of it right now. Here are some thoughts. The two different t
Hi, I have a friend who asked me about a Wilson WR500 rotator he acquired. Anyone have info on the rating for this thing? Thanks! -- 73, Kurt K7NV "That's K7 "Nevada" (ex - NI6W) YagiStress - The Ult
Greetings, I'm seeking input from TH7 users to help me sort out a problem. Think it may have been addressed before, but I can't find the answers in the archives. Last summer, I put up a, supposed to
I suggested removable Loctite many months ago for this problem. The problem is significant in my mind, and there are several others who do not view the problem in the same light, nor the problem or c
Thanks Tom! Same experience here, it works lots of stuff, but SWR is not right. I think you just won the "Help K7NV" Lottery! This antenna belongs to someone else and was offered as a loaner till I c
Hi Stan, I think this is a sound observation. Another cause may be misalignment caused by mast flexing inside the tower, rather than an initial alignment problem. I know you and I discussed this quit
Thanks to all that responded to my request for help with the TH7 problem! As expected, I got some quality help, and it is greatly appreciated! I didn't expect to be posting a report till tomorrow, bu
Gary, You're right about this! I pulled the section apart and found that there was plenty (> 3 x Dia) left overlapped, so I went for it. But, It should be checked. It took me about 4-5 iterations to