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The Tower at WA4BPJMy tower is 72 feet of Rohn 25G guyed at 3 levels with 1/4" EHS cable. The guys are attached at each end with twist grips. The top set attaches to the tower through torque arms. The base is a 6' tower section in 4' of concrete 2' square. The legs project through the bottom of the concrete midway into a 6" gravel base for drainage. There's 21' of 2" galvanized schedule 80 mast nested at the top. This will be extended when the yagi's are ready. Presently, the tower is supporting the center of an off center fed dipole (Such a waste!). Its overall length is about 160 feet. About 65' is over the house to a tree in the front yard with the rest to a tree behind the house.GroundingThe ground system comprises 13 ground rods and about 300' of solid 6 guage copper. There is a set of rods around the tower base, and rod at each guy anchor pole. The remaining rods are distributed along the radial ground wires that run between the tower base and each guy anchor pole. The system is also bonded to the houses electrical service ground at the meter. The radial ground wires travel up each anchor pole and are split bolt connected to each of the guy wires above the turnbuckles.
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