Howdy all, I am preparing to set up a satellite station with M2 2MCP22 and 436CP42UG antenna's. The wind loads are...

2MCP22 2.5 sq. ft. 436CP42UG 2.0 sq. ft.

I have a Glen Martin RT-424 (with thrust bearing), 4.5' tall roof tower that is rated for 6 sq. ft. of load at 87mph. I will be mounting it on my deck as opposed to the roof. (My climbing days are over:-) My deck is approximately 12' off the ground on 6x6 posts and VERY sturdy.

I will be using a Yaesu G-5500 rotor in a split configuration with the AZ rotor inside the tower and the EL rotor at the top of the mast. I also will be using a 8' fiberglass cross boom to mount the antenna's on.

Now that all of the prerequisite specifications are listed, here is my question.... What should I use for a mast? It will have to be fairly long (15-20') since the turning radius for the antenna's are around 10' and I am worried about it being so long that it will bend or provide a fulcrum to damage the tower.

I would appreciate any suggestions.

I live in a 75mph wind zone.

Thanks, RoD KD0XX

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