This is what I am planning to use to support the 144/440 beam with a rotator. Rohn sells the tripod for about $50, but I found this one free with no extra charge for the rust...lol. A wire brush, 2 cans of white primer and new hardware cleaned it right up. I plan to hinge 2 of the legs and cotter pin the third to make it a fold over roof mount. When folded over, it will drop in to a Rohn standoff wall mount to secure it while mobile.
P.S. I moved the mast away from the power line quickly after taking the photo.
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Extra Class Amateur (Ham) Radio Operator, VE, SKYWARN Storm Spotter, ARES Volunteer, TSA Security Officer, Full-time RV dweller (Amarillo TX for now), webmaster
www.PanhandleARES.org, Married to ke5zru!