Model SSPA 01-05-400 is a high-power amplifier system that delivers 400 W output power from 100 to 500 MHz. Suitable for linear military communications systems, the amplifier is designed for harsh environments and operating conditions. It requires just 10 W input power to achieve its rated output power, and can work with continuous-wave (CW) or pulsed signals. The amplifier system, which operates from a +28-VDC supply, is equipped with DC and RF switching circuitry that enables and disables critical components in 20 s or less. It exhibits maximum input/output VSWR of 2.0:1 with typical system efficiency of 40%. Standard features include reverse polarity protection, output short and open circuit protection, and over/under voltage protection. The typical noise figure is 10 dB across the operating band. The amplifier can handle operation at base-plate temperatures from -40 to +65C. It measures approximately 11.5 x 25.0 x 50 in. with Type N connectors.