Scanner and Amateur Radio WideBand StainlessSteel Discone Base Antenna * Great For Scanners! Broad Band Reception Covers over 25-1300Mhz! * Pre-Tuned, Transmits 144-160/220-225/430-470/900-1290Mhz Bands! (VHF / UHF ) * Rust-Free Stainless Steel Elements! Great for Roof, or indoor/Attic too! Requires Optional mast pipe (1-1/4 to 1-3/8 inches) Accepts PL-259 connector. Self supports without mast if indoors (attic etc)!