There has been an interesting discussion on this list about the correct way to install cable clamps on Phillystran. I just discovered an old brochure from Phillystran dated April 1990. It clearly sho
AO shows my 6el monobanders to be 98.9% efficient. Where does this 50% number come from? John Hi Jon; Consider the full wave Quad has about 1.8 db more gain than a 1/2 wave Yagi. The Quad is quieter
His three piece climbing mast is discontinued. He still sells bolt on steps, which are easy to make yourself. Doug's call is now W9IIX. His url below: http://www.W9IIX.COM/ 73, Good Luck and Happy Th
I'm not familiar with the insides of the Ham IV, but it doesn't sound like a brake problem to me. A bad brake would cause the antenna to drift, but the indicator on the control would remain correct a
I was looking for the same thing two months ago to make a hairpin match. I purchased two 12' pieces of 3/16" dia 6061 from www.metalmart.com . I was able to pick it up locally, perhaps they have a wa
That may be true for someone in MA. I would rather have a lower antenna 1000 miles further east. John Yes. Mainly, the higher, the better. And the higher the co$t. -Chuck, W1HIS _____________________
If you have perfectly level ground and place the anchor 136' away, the beam will clear the guy by 1'. John Ok, I must admit that my high school geometry/trig have not survived college parties, etc. b
Adding 1' to the boom does not give 1' of guy clearance unless the guy runs straight up and down. Guy clearance should be measured perpendicular to the guy. In this case for 1' of clearance the guy w
I guess your guy wires run straight up and down. If the guy was on a 45 degree angle adding 1' to the turning radius would only give 8 1/2" of clearance. Oops, somehow the word "Boom" got into this t
Good luck with your project. You can use stronger tower sections to allow more spacing between guys. For example: I believe that with Rohn 55G you can have 40' between guys and go 20' above the top g
I use hardline and Belden RG213 jumpers for most of my antennas. I had a run of Cable X-perts RG213 Direct Burial connected to a temporary antenna which after a direct lightning strike was damaged. T
My Rohn 55G tower in Aruba has been up for less than a year. After five months the corrosion was very noticeable and I painted the tower with a zinc enriched paint. That was six months ago and it's s
I think that there's a lot of clay in your area and the screw in anchors probably will work fine. I know of a 60' Rohn 25 tower locally that only used the screw in anchors and it stood for years unti
Why not slip a smaller diameter tube inside the boom and make a coupling joint clamping it with four bolts to eliminate the boom to mast clamp. One of my top boom support cables on a Hy-Gain Explorer
TIC makes a boom support truss for the 1032 and probably the 1024 which would solve the boom support problem. I understand you not wanting to take the antenna down. I had to repair my full size 40m b
Actually I've had great with Cadmium plated hardware. The biggest drawback is it's extremely hard to purchase because of EPA plating regulations. The stuff I used was plated in Canada and it seems to
I wouldn't even question whether you should fix it. You're lucky that you noticed the problem now and not in January when it's -20 outside. John Well, it looks like the consensus among everyone is to
I'm not sure where you can purchase small quantities of EHS. I think Texas Towers only sells it in 500' lengths so if you have a small installation, you may need to buy 500'. Unless you are in a high
Universal Aluminum Towers use steel concrete base legs. - John Re: K3BU's suggestion... I wouldn't do this, because unless I'm mistaken, I thought the original tower was aluminum, which means the ori
I once tied an aluminum extension ladder to my tower with a pully on top and used that to install a 15' steel mast. This worked very well. If you have any light weight tower sections laying around yo