Looks like you have a pretty tall order there. As I calculate it, you
have about 20 sq ft of antennas to put on a single mast.
Without considering as to whether the antennas will operate properly or
not, but just placing them on a mast for minimum moment, assuming a 22
ft mast with 4 ft in the tower (which is kinda sporty), and antennas at
2 ft, 10 ft, and 17 ft, you would need a mast strength of 150 kpsi to
survive 70 mph winds with a 1.28 wind gust factor. You can get 100 kpsi
chrome moly but that's not going to handle it. This is going to require
some serious engineering to put these on a single mast. Then there are
tower and rotator considerations also.
Even if you placed the antennas at 2 ft, 6 ft, and 10 ft, it would max
out a piece of chrome moly.
Jay Rodaman wrote:
>I am in the proces of erecting a new tower (60 feet of Rohn45G) and plan to
>have multiple yagis on the mast.
>I have a CC402CD, Force 12 4BA and a Hy-Gain 204. What should the order of
>placing these antenna
>on the mast be and what should the spacing between the antennas be? I would
>appreciate a responce.
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