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June 18th 05, 07:14 PM
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"Gary" wrote in message ... Kb2sin wrote: Im looking for mounting ideas for the top section of a rohn 45G to be used solely on a roof ontop of a home. any idea on how I can mount this monstrosity with out guy wires? Please email thanks and 73's de kb2sin I once mounted a section of Rohn 25G on my roof. The house was two-story with a one-story garage. I built a platform out of 2X pressure treated lumber and sat the platfrom straddling the ridgeline of the garage. Inside the garage I spanned several rafters with 2X and ran long bolts through the platform, through the roof, and through the spans thereby securing the platform to the garage roof. I drilled holes in the platform to match the 25G legs and fastened the 25G section to the platform with U-bolts. I then installed a Rohn house bracket on the side of the two-story portion of the house and clamped the tower section into the house bracket. I put a 10-foot piece of high tensile mast in the tower and mounted a 24-element 432 Yagi, small tri-bander, and 5-element vertical beam for 2 FM. The guy who made the initial post also needs to know that there are roof-mounted towers. They consist of spread tripod legs; mount with bolts going through the roof, lumber in the roof spanning several rafters/trusses, and gobs of roofing tar. Check out these roof-mounted towers: http://www.glenmartin.com/industrial/pg17.htm --- Joe S. This reminds me of the Yugo I saw last year parked at the hamfest. It had 16 antennas attached in various ways, had the passenger seat removed so he could stack his radios, and had a huge hole in the side for the coax., neatly plugged by the way with clear caulking. Classy. Assuming your house is constructed of steel i-beams, just weld the base of the tower into the steel roof truss and you should be good to go. If you have a traditionally constructed home of wood, brick, and plaster, then just go ahead and file a claim with your homeowners insurance, indicating the cause as owner stupidity. It will save time on the claim when the tower crashes through your bedroom ceiling at 3 am and pins you under the ceiling fan. |
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