Collinear phased 5/8 wave. 6dB gain. A favorite of maritime professionals, this rugged antenna boasts an extra heavy-duty radome and powerful internal elements for reliable service day after day under the most demanding conditions. Brass and copper elements, chrome-plated brass ferrule with standard 1"-14 thread, includes 20' RG-58 cable and PL-259 connector. One section. Twin to: 5205 and 5207 CB antennas. Suggested mount: 4187 ratchet, or use 410 mounting kit plus 4008 extension mast to form a 16' antenna system.