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writes: << Am I the only one that is very aggravated at the recent adoption of 5/8" sized nuts on big U-bolts on F12 antennas? >> I was thinking the same thing. Every time you add another socket and matching wrench or two, the belt gets a bit heavier. Hopefully this wasn't covered earlier, but it also reminds me that I was perhaps the last guy to figure out why occasionally these bigger antennas slip on the mast after you have really tightened. I had a very difficult time trying to keep my 180 C (80 mtr rotatable with 84' element) in place on a cromolly steel mast (very hard and very slippery). I even inserted silicon carbide screen between the mast and the clamps--still moved in a big wind. The problem was that I always had to slip this antenna up the mast after installation to the point I wanted it. No matter how careful I was, there was always some out of allignment caused by the antenna resting on the loose saddle clamp prior to tighening. Bottom line: move antenna to desired location, tighten one clamp, totally loosen the other and then tighten gradually making sure it's perfectly alligned. THEN--totally loosen the first one and do the same. This is what I wasn't doing! This, with the gritty screen has, so far, been successful in keeping this beast in position. I suppose this isn't so likely to be a problem if you're working comfortably at tower top, but I was doing it from a mast step above my C31 so. . . . . Hope this is helpful to one person! John, N0IJ -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force 12 Web site: http://www.qth.com/force12 Submissions: send to Force12Talk@qth.com To unsubscribe: send a blank e-mail to Force12Talk-leave@qth.com Force12Talk Message Archive: http://www.qth.com/force12/list/force12talk For problems with the list, contact force12@qth.com |
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