This all happened before I became licensed in 1977 as WD5DXL. I think the tower went up in 1975. It was not tapered. I think it was 12 inches on each side. The braces were horizontal, which means res
I feel certain it is humidity causing the corrosion. I have numerous tools laying about in the shack. The XYL "borrowed" one of the screwdrivers to use out at the barn. About a month later I was comp
I think the drilling method is okay. It may not be good in arid climates, but a few good rain showers will re-pack the dirt around the rod. In dry earth it's always good to use electrolyte to enhance
That is GREAT news, Gerald! I was beginning to think my next two towers were going to be a different brand. Keith NM5G I am pleased to report that at long last the Rohn/Radian order has been delivere
Excellent advice. I concur. Sam's Club has a good deal on Scotchbrite. Keith NM5G Jack, I suggest that you clean the aluminum elements with SCOTCHBRITE and NOT steel wool... Steel wool will leave ste
Have you ever made observations of this charge buildup under varying humidity? I am wondering if higher relative humidity decreases the charge potential and vice versa. Keith NM5G corona? I never sai
You don't have to rely on opinions (but they are fairly accurate). Get the whole skinny from www.arrl.org. Keith NM5g --Original Message-- From: towertalk-bounces@contesting.com [mailto:towertalk-bou
This does not sound like a good solution to me. Why not call TIC for a recommendation? They are always very helpful to me. Keith NM5G --Original Message-- From: towertalk-bounces@contesting.com [mail
Man, that's a BIG log! <just kidding> IMO, the best bang for the buck is Times Microwave LMR400. If you want to spend more for better quality and lower loss, use RG213 or Belden 9913 flex (not the a
I have used a 4:1 balun with 450 line. Tuning was OK but not as good as expected. I have also used LMR400 to directly feed a 160 meter dipole. This was a great performing antenna except that it was u
Bill, The only stupid question is the one not asked. I, too, would like to know more about the roofing filters. Two of my friends have the TT Orion and talk about them all the time. Keith NM5G This i
If you have a Polyphaser installed at the bulkhead entrance to the shack, the chance of this happening is extremely small. With the arrestor in place we are talking hundreds or thousands of volts rat
I logged into www.yaesu.com and asked tech. I will post the response on TT. Keith NM5g Anyone familiar with the Yaesu G-450XL rotator and might know what is the best place on the box to connect to my
I know of several folks who are using less than the recommended 80 percent of height rule. This puts more load on the guys for a specific wind load at the top of the tower. If you are not worried abo
I think you are making a mistake planning for a 120 foot tower on such a small lot. Just face the music and calculate the maximum safe tower height for your expected wind rating. Or, get a self suppo
I agree that elevated guys should be extra strong to avoid movement during high winds. I chose 8 foot steel pipe with three feet in the concrete. The pipe is 4.5 inches OD with .25 inch wall. The thr
I don't think so. The problem with coax is the dielectric material (e.g. foam). Absolutely. Keith I have some "new" 20 year old Belden 8285 300 ohm twin lead. It's stamped "Permohm UHF". Conductors
Hey admin. How about removing this subscriber (<geo888@cs.com>)? It's a waste of bandwidth. -- The original message was received at Sat, 18 Sep 2004 23:00:26 -0400 (EDT) from siaag1ag.compuserve.com
Not sure, but probably oxidation. At any rate, the loss goes up as it ages. Keith --Original Message-- From: towertalk-bounces@contesting.com [mailto:towertalk-bounces@contesting.com] On Behalf Of Al
The 80 percent figure is one component of the wind load rating of the tower and guy system. One could re-calculate the wind load rating resulting from a change in this component. I could do this but