[TowerTalk] Crankup Tower for DB-36

[Jim Hoge]

John,

My experience was with a Triex LM-470 and a Tennadyne T-12 lpda antenna. While it's not the same weight or exposure it did enlighten me to one drawback of a crankup. Tower sections clanked as the wind spun the antenna and the tower sections back and forth. It wasn't noticable when the tower was retracted but boy did it make its presence known when it was up and it was windy. It didn't take a lot of wind, certainly not to the point I would have considered lowering the tower for safety.

Be aware too of the topload weight capacity of the towers. Do not forget to add in the weight of the rotor, control cable, mast, antenna, tilt plate, coax, and standoffs.


Finally, notice that the specs you listed are for differing windspeeds. It's like comparing apples to oranges. Use the same specs or have an analysis run to make comparisons.

gl es 73,

Jim W5QM



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