The Model KAA4020P is a wideband RF pulse amplifier. The KAA4020P is a Class AB linear amplifier capable of 500 Watts pulsed output power into a 50-Ohm load over the frequency range of 1 MHz to 50 MHz. Power gain is 57 dB minimum. GPIB control is possible with the optional IEEE488.2/RS232 Interface Controller Module. The system features forward and reflected power indication on a front panel-mounted, analog meter; Automatic Level Control (ALC); RF gain control; overdrive protection; full VSWR protection; input blanking, and over-temperature protection. These features, plus remote power on/off control, are also accessible for remote operation through a 25-pin, D-subminiature connector mounted on the rear panel. For a detailed description of these features refer to SPECIAL FEATURES KAA & KAW-SERIES SINGLE BAND RF POWER AMPLIFIERS.