The S-Band antenna was designed for line of sight voice or data communication circuits. The antenna is vertically polarized and has a frequency range of 2025-2400 MHz with a 100 watt average power capacity. The antenna was specifically designed to optimize maximum radiated power above the horizon by including up-tilt and null fill. Null fill above the horizon ensures the radiated power remains virtually constant allowing for uninterrupted communication between the antenna and the aircraft, while the antenna’s high gain accommodates long range communication circuits. The antenna’s robust design is suitable for extreme environmental conditions.