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. 5225XTRL: Same specs as 5225XT 8\' but shortened to 7.75\' to lower shipping fees.