Sinclair’s Heavy-Duty SY306R radome enclosed Yagi Directional Antenna offers10 dBd gain and 25 dB frontback ratio features a heavy-duty fiberglass radome which offers unbeatable protection for the antenna especially in harsh weather conditions. Both antenna and reflector are designed for optimum front-back ratio. The entire antenna is at a DC ground potential plus the reflector is also optimized for reduced wind loading.