Winegard Sensar IV Replacement HD Antenna Head, Black;Optimized for the DTV spectrum, this amplified antenna with the Wingman UHF upgrade integrated into the Sensar head receives maximum VHF/UHF reception so you can enjoy watching the top rated local program in the best quality HD free;For use while parked;Requires 46.25 inch Weight x 15.25 inch Diameter, unobstructed roof space while stowed