Blonder Tongue's BTY-C-MOUNT consists of a heavy duty square aluminum boom and all clamping hardware required for rear mounting of the following BTY Series Antennas: BTY-5-LB, BTY-10-HB, BTY-LP-LB, BTY-LP-HB, and BTY-LP-BB. Cantilever end-mounting is commonly used since the antennas are usually attached to tower legs rather than to masts. This maximizes the signal reception qualities of the antenna by keeping elements clear of support structures. It also eliminates the need for outriggers and masts. Antennas can be mounted horizontally or vertically on a tower leg or mast (1.25” to 2.5” O.D.) by rotating the mounting plate 90°. The BTY-C-MOUNT is designed to mount parallel to and below the antenna boom.