Omnidirectional for install-and-forget convenience, No rotator system needed, Built-in preamplifier to boost signal strength; up to six times the received signal on VHF, Easy to install with hand tools on any antenna mast or light-duty antenna mount, Good companion for digital satellite systems, Mast NOT included, Does not include cables, Aesthetically pleasing small compact design, Dimensions: 21-1/2"" Height 2-3/16"", SKU: PTR22376