I am "considering" the possibility of running 105 feet of pipe extending the existing mast to near ground level and mounting the rotator at that location. The antenna is 20M5L48. I have to take the r
Hi Stan, I once tried that very thing with 70' of 1.5" schedule 40 pipe, and was amazed at how much twist there was in that length of pipe. My antenna was a 4 el triband quad on a 30' boom. In strong
Author: "WA3GIN in Alex. City, VA" <wa3gin@erols.com>
Date: Wed, 18 Jan 2006 21:16:48 -0500
I've successfully done the same thing with a 50ft tower. It's a lot of work to install. There will be a lot of weight on that bearing just above the rotor. Might be easily to just hire someone to swa
I would not use such a small rotating pipe with an antenna that size, not even with a short mast. With that length I would use at least 4 inch or more. I use a KLM logperiodic with a 36´boom on
Stan: ON4UN have one tower using that setup, check the book , there are pleanty of photos, he use big rotor at bottom, he use several sections that have flange ends where he bolt together. that works
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Thu, 19 Jan 2006 18:05:57 -0500
I've seen rotators at the bottom of towers that worked fine and I've seen some that scare me. Some things to remember about mounting the rotator low. The tower base still supports all the weight. The
Bill, Thanks to you and to all the others who responded to my request for information. I am glad I asked for information and did not do something stupid that was sure to not be a good situation. It i
Greetings, I'm a little new at this but have done some research on the subject. I have a ~65 free standing tower where the mast is supported at the top, and the rotator is installed at the bottom. Ad
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Fri, 20 Jan 2006 23:35:52 -0500
<snip> I have the rotator mounted down in the tower. There is about 44 feet (two standard lengths) of 1 1/2 structural steel tubing with 1/2" wall. The center of this is reinforced with 22' of 2" ste
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sat, 21 Jan 2006 00:07:26 -0500
Whoa! I can't trust this keyboard. That's supposed to be 1/4" wall Roger(K8RI) _______________________________________________ _______________________________________________ TowerTalk mailing list T
Stan, I don't think that anyone has mentioned the additional wind loading of the 105 foot mast. 105 feet times 4"/12" pipe diameter times about 0.6 to convert to equivalent flat plate amounts to an a