If their Mommy named the brackets, she never told me--but they were simply what Radio Shack had on hand. Same for the pole, which is one inch in diameter. There are 2 sections of pipe, one 5-footer and one 10-footer, totalling 15 foot in height. I grounded it by simply jamming the bottom section a few inches into the ground. The pros will probably tell you that's inadequate and sell you on wiring it to an 8 foot grounding rod or something, but I figure if what we did wasn't going to work, most likely the system was going to get fried anyway.