Respected, BombedOne, on my support it is possible to establish больший\The big\, than 2.4m the size. It is the polar aerial. It is made, the same in China. Safety factor of an arm - 10 times. The installation site is closed from the main wind. This most important thing + calculation and intuition.
It is told perfectly: "A Wise Man can see more from the bottom of a well than a Fool can see from the top of a mountain."