Collinear-phased 5/8 wave elements. 6dB gain. The 5225XT is Shakespeare's classic 5225 in a new, stronger, stiffer radome. It's extra tough for use on hard tops, T-tops, radar arches, or wherever its extra resistance to high winds and high speeds is welcome. Brass and copper elements, stainless steel ferrule with standard 1"-14 thread, 20' RG-8/X low-loss cable plus a PL-259 connector.