Been thinking of putting up my old Orbitron mesh 10 foot dish. Pipe is about 3-1/4" and about 6 feet out of the ground, all estimates. I am in the woods and do not have "open range" wind blowing, so somewhat sheltered. Want to keep costs down as low as I can. Ground here is what most call "gold sand." There is no clay in it. So, what do most think of the amount of concrete that should be used?