Combining continuous and pulse operating modes, S31-500-900P performs 600 V/m radar pulse radiated immunity testing in 0.8–3.1 GHz band. GaN-based amplifier has 500 W continuous rating and can deliver >900 W in pulse mode. Peak power rating allows unit to generate 600 V/m test with either high gain narrow band antennas or single wide band antenna. Features include pulse width up to 570 µsec, PRF range of 0–100 KHz, and rise/fall times of 15 nsec at duty cycles up to 10% in pulse mode.