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flats in an environment often hit by typhoons. That environment has notorious micro-climates where things are different just a few kilometers away & further, as we go up above ground level. I have seen plenty of supposedly 125 mile/hour antennas fail in far less than that wind velocity - stuff that was most likely tested as it would fit in a wind tunnel & was sold into a market that expected it (satellite antennas & more specifically, reflectors used for VSAT applications, not poxy TVRO stuff). We have a code of practice here where we must include sufficient margin as well as take into account increasing wind speed as one gets above ground level. Not wanting to pour petrol on the fire & I certainly am not qualified in this field, but common sense suggests that placing antennas in an environment where they are close to their maximum rated specification & could see even higher winds than that due to elevation above ground suggests failure is inevitable. We all suffer when the lessons that could be learned from extreme applications of products are lost in a situation like this. 73, VR2BrettGraham (C-4E/A still on ground as my neighbor threatened to cut it & everything else down - I'd gladly deal with failures which are not criminal acts!) -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force12 Web Site: http://www.force12inc.com To Submit Message to the List: Force12Talk@qth.com To unsubscribe and view the Message Archive: see http://qth.com/force12/list For problems with the list: contact n4zr@qth.com |