I would also compare the coatings. I could be wrong, but I believe that Trylon is made from pre-plated steel and AN Wireless towers are hot dipped galvanized. John I've compared the specs. and prices
How does this help? I have a full size 40m beam and a 90'+ 80m element on the top of one of my towers and the mast is discolored from being hit by lightning. I have also witnessed one strike and it l
Perhaps signals travel better over salt water? My single 4 element beams in Aruba seems to work much better than my 6 / 6 stacks in Illinois. John KK9A / P40A http://www.iguanavilla.com <snip> Very i
What is a Chaurman? What does this thread have to do with towers? _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Statio
I'm not sure what wiring up a barn has to do with towertalk, but it would really be nice if the subject lines actually matched the subject! John _______________________________________________ See: h
You'll have to check the archives. I believe geo888@cs.com posted that the windload is less if the owl is facing true north on a 190 foot freestanding Rohn 25 tower. How do you calculate the wind loa
Yaesu recommends pinning and even includes the bolt. I don't think realigning antennas should be normal maintenance and it's certainly something I wouldn't want to do every time there's a strong wind
For splices to 3 inch x 1/8 wall boom, I use 2 1/2" Schedule 40 6061-T6 aluminum pipe. The O.D. is 2.875 and the I.D. is 2.469. Then I have the O.D. machined to 2.735 - 2.740. John KK9A / P40A Speaki
I agree that since this thread started several months ago it is enough (or enuf, as many spell it) on the subject. I disagree that this does not belong on towertalk, however the name calling certainl
I hate to add to this thread, but I resent your accusations. I used the term "if it's true" which is certainly not meant to turn speculation into fact and I am not taking anyone's side. My point was
The stainless steel bolts on my antennas in Aruba show a little corrosion (very little) on the head. I'm note sure of the grade, they were purchased at Ace Hardware. I also get some salt buildup and
Actually it does rain more than you may think in Aruba and when it rains, it rains hard causing a lot of flooding problems. John KK9A / P40A Rain is hardly a concern in Aruba. It is a desert island w
Being licensed since 1977 should not be embarrassing. Does anyone have any experience installing a K0XG thrust bearing plate in Rohn 25G? It is suppose to fit anywhere in the tower I desire..but for
You didn't specify what transceiver you are using or what you are trying to switch. If you have only one antenna per band, or a tribander and some low band dipoles you can use a band decoder to switc
I have a similar situation at my home in Aruba. I have a homebrew 4 el 20m (36' boom) and a 4 el 15m (24') 7' above it. The 20m antenna is unaffected by the 15m. The 15m appears to still have good ga
Once I replaced a crankup tower with a Rohn 65G tower and I used a pier pin base. I left the old studs sticking up and drilled a hole in the center of the concrete for the pier pin. I cemented in the
It may be easier to repair it on the tower, assuming that you really like the antenna. It's hard to say without seeing your situation, but perhaps you can attach a hand winch as far out on the boom a
Is there a man-bucket that will reach 200'? In this area large cranes are a huge expense, perhaps they're less in Florida. The last time I used a 60 ton 180ft crane (which isn't big enough for Bill's
Lately, the majority of posts have nothing to do with towers or HF antenna construction. For example, today 23 out of 34 posts were off topic. And this has exactly WHAT to do with tower and HF antenn
I have six of them in use and one in storage. I bought mine directly from Carl Anderson at TIC General. 1-800-TIC-RING. John - KK9A Hi, Any sources of ring rotators appreciated? Unless I missed it I