DELUXE Discone Scanner Multi- Purpose Base Antenna. ReceivesVHF-Hi / UHF 30-1300 MHz Peak Receive Performance: 137-470 MHz 144-156 MHz / 420-470 MHz Transmit (tuneable) Rugged All Weather construction. All radials are 3/32" Stainless Spring Steel. 6 Horizontal Elements 4 Ground Radial Elements 1 Tuneable Vertical Element Tuneable vertical whip for transmitting on the 2 meter Amateur band (144-148 MHz) or the VHF MURS band (150-156 MHz.) Can also transmit on UHF 440 MHz Band! Clamps to any mast from 7/8" to 1 1/2" in diameter. Mounting hardware, SO-239 stud, instructions and SWR tuning wrench included. Overall height: Approx 40" Made in the USA by Centerfire Antenna and covered by a Limited Lifetime Warranty! NOTE:RG6U cable is recommended for best UHF scanning performance.