If calculating wind load for the purpose of deciding which rotator to use, I would think the boom length would factor in. Surely a square plate 4'x4' mounted to the mast would put less stress on a ro
I have not read all the replies so this may have already been mentioned. Read this article. I would make it heavier duty but you may be OK with diameters shown. Anyway, something like this would be v
It's 42.25 feet long, about 60% of full size. 73...Stan, K5GO _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesti
The best shipping container you can get for this is free from your local carpet supplier/installer. The hard tubes that carpet is rolled on are usually 12 feet long and 4 inches diameter. Cut them wi
Jim, I installed what you described on my 40m tower in 2006. The tower is 33 inches on a side and 3" diameter legs. The tower has a thick piece of angle welded across one face at the top and bottom.
I thought a StepIR had some kind of conductive flexible tape on inside of fiberglass. If so, what's up with retracting elements to reduce wind load? Stan, K5GO Sent from Stan's IPhone _______________
Gary, The wind load of the element starting with 6 feet of 3/4 inch and then 66 inches each of 5/8, 1/2 and 3/8 is 2.55 SF. The weight is 4.9 pounds not counting hardware. It is rated for 41 mph. Thi
Thanks to Gerald for correcting me. Calculation was done with Yagi Stress and I forgot to halve the numbers. The 41 MPH number should be correct. Stan _______________________________________________
What an exciting time, putting up something like this! Great videos. Congratulations, Paul. Stan, K5GO _______________________________________________ _______________________________________________
I have about a 67 foot vertical with about 50 uh coil at about half way up for 160m. Antenna worked great until this morning it melted the rope which was used to pull it up through pulley at top of m
Thanks for the responses. This morning I got the power company to bring their bucket truck over in less than an hour to put the rope back through the pulley. My wife and I put it back up by about noo
The big box price for THHN is also about 50% more than for Romex with three wires. Those three are fairly easily separated using a utility knife and some pulling. Guy's "method" has to be similar to
This is a long shot but if any of you are in Miami and could contact me off list before about noon on Thursday, I would greatly appreciate it. It is definitely related to antennas. Stan, ZF9CW ______
Coming back from Carribean. During the contest last weekend I spent a lot of time listening or trying to get 10m to open. Almost everyone I worked from Cayman Brac was in NM or West of that. I did wo
On previous post I meant to say ground plane vertical. Sent from Stan's IPhone _______________________________________________ _______________________________________________ TowerTalk mailing list T
I would use about 4 Stauff clamps on either side of the center of the element on an aluminum plate that was about 5" X 24" X 3/8". 73... Stan, K5GO _______________________________________________ ___
The club station at the University of Arkansas needs a fold over section for 45G. Anyone out there have one that could be acquired? Thanks... Stan, K5GO ______________________________________________
I'm going to downsize my radio station. Probably going from 13 towers to about 7 towers including the 80m 4 Square. Included will be 600-800 feet of tower and some very large, heavy duty antennas tha
Steve, I have two or three in my storage building. Have one or two indicators. Trying to downsize and sell stuff I'll never use. No doubt they all need work before you put them up. If anyone is inter
I need an education on bearings. The question is the axial or thrust rating of guesstimate thereof on bearings that do not show that spec. As example the bearing I believe used on a RTS rotating towe