Hi Ted, Congratulations on figuring out how to do this without climbing the crankup at all! Great job! You will be an inspiration for others with crankups in trouble. Stan w7ni@teleport.com -- 66'9k'
Hi Steve, This is a great example of a good question to put to the manufacturer and apparently you are trying to do just that. With no more data that you have right now, I would think that the most i
That would be my conclusion, Mike, unless there was going to be more than 400 pounds or so on the rotator. Then I would rethink using a real thrust bearing to take weight off the rotator. Stan w7ni@t
Holy Cow, Jim, Who would ever use a Ham-M, Ham-4, etc. with a 2 inch mast without shimming it 1/32 from the two sides of the fixed bell housing? I thought we learned this in first term Tower Construc
This is a multi-part message in MIME format. --D44587BED544FE9952D7E00B Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit -- 66'9k'?:'<@'7:'h;'jj'7:'8m'=;':h'j@'@7'?i'=9'm<'j
Just let me say there is an incredible amount of good sense in this post . . . I absolutely agree with Pete's choice for a top section as well as the method he has described to get things lined up. T
I would say yes to this one . . . Right, but who cares? If you use a proper 2 " mast, the bolt will hit the mast very soon after it enters the top pipe portion since there is only a little clearence
with in all who Hi Kurt, Yes, a good idea. I have probably sold 100 of these bearings in the past and I don't think any of the others were punched. I think this is a relatively new step in the manuf
You want a big dish? WB7UNU has one in MY yard that you can buy. This dish started out as a prototype for a commercial product that never went to market. WB7UNU and I were going to install it at my Q
I have two Tailtwisters installed in Rohn 25 without modifications . . . Unless they have changed the Tailtwister in some way, it will fit in 25G without modifications. Stan w7ni@teleport.com -- FAQ
Right off, I don't agree with that statement. I have a current Rohn book and it says the 45AG2 has "2 STD. PIPE (2.38" O.D.)". It also says the 45AG3 has "TS 2.25 O.D. (14 GA. WALL). Those are defin
Hi Dave, There is a specific place where there are no diagonal braces to install rotator shelves in 25G top sections. You can also install them at the junction of the top section and the section bel
Hi Chuck, I have a 5 element Wilson 10 meter beam up that I bought in 1972. It has a 20 foot boom, 3 inches in diameter. If the Wilson you are looking at is about same vintage as the one I have, it
Towertalkians, Rohn offers a service (for a LOT of money) to analyze a NON-CATALOG tower. This means there are a LOT of ways to use Rohn towers NOT shown in the catalog. Rohn has fully engineered and
The fact that Rohn does not seem to have any competition in the 25, 45, or 55 business explains a LOT to me about the way they behave toward customers in need. Why SHOULD they share any more informat
Hi Dave, I have never seen a copy of any of Rohn's calculations either. If we could just get a good example of exactly how the calculations are done, this would be a great start on writing a program
I think this just goes to show that there are many ways to calculate "square foot" capability when it comes to antennas and/or towers. Both tower and antenna manufacturers have been (intentionally,
Kurt, Thank you for a very well-written and informative piece about a VERY important subject. It looks like HyGain has already adopted your recommended method of specifying antenna windload. Now if w
Tom's right on this one. It's a bad idea. I have visions of one of the neighbor's little kids standing inside your crankup tower as it automatically comes down . . . Also, unless you have a positive
We are drifting away from towers right now and I promise I won't drift any further than this post, but I feel I have to say this. Next time you get to serve on a jury and somebody wants to collect b