I purchased a tower from the estate of a SK. It was about 50' high and hinged in the middle. It had strongback that ran along one leg of the tower attaching to the tower above the hinge. There was a
I would be very interested in how to tell which 45 tilt overs had problems, as I have an old one that I acquired from a SK's estate. What was the failure mode? Is there any way to tell from the stron
I got several replies on failures with the Rohn 45G foldover. It looks like Rohn did a modification to the design to beef up the strongback on the foldover. Thanks to Jim, K5LAD for some pictures sho
Basically all the salt that is going to be on the earth is here either as NaCl or its constituent parts. Geology and meteorology distributes it around. Places with a lot of rainfall don't have much,
Here in California you have a bit more leeway for loads on your vehicle. The overhang allowed in the rear is 2/3rds of the wheelbase. On my truck that is about 10 feet. This provision was mainly for
I also use 4nec2 and have used EZNEC as well. Right now 4nec2 works better for me. The user interface has some quirks, but is good for getting basic designs in. You have to be careful when using real
Easier... Just tell them that the radials keep the space aliens off your lawn. You shouldn't have any trouble after that. Erich N6FD _______________________________________________ __________________
I agree, but currently in California, illegal! Erich N6FD _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.c
Given the location of that river, it is quite possible that someone dumped something in there that changed the conductivity :-) _______________________________________________ _______________________
I managed to get one onto my 110X60 lot with some effort. It looks more like a "S" than straight, but gets me on the air. I feed it as an offset dipole to get on a number of bands. I also have a pair
The only one I know about is the group exchanging Field Day chili recipes. Those are NOT crickets chirping! Erich N6FD ;-) _______________________________________________ ____________________________
I don't know of any specific calculator for top hat capacitance, but you should be able to model it easily in 4nec2. Its free and available here: http://home.ict.nl/~arivoors/ <http://home.ict.nl/%7E
John is correct, there is an invisible Iframe embedded in the site. My anti-virus software didn't warn me because I have Firefox set up to block such things. I have notified Ari and the 4nec2 user co
Just a follow-up, the 4nec2 web site is off-line indefinitely due to a virus. Erich, N6FD _______________________________________________ _______________________________________________ TowerTalk mai
There were also some shadings (cross hatch) on the western portion of the map. What do they represent? Erich N6FD The wind zone map in that document contains no legend. Exactly what are the numbers/c
You probably need to do some electromagnetic modeling. The answer depends on a lot of things. The length of the booms, whether or not the elements are isolated from the boom, and any other interactin