The Model 10WD1000 is a portable, self-contained, air-cooled, broadband, solid state amplifier designed for applications where extensive bandwidth and high gain are required. Push-pull circuitry is utilized in all of the high power stages in the interest of lowering distortion and improving stability. The Model 10WD1000 covers the frequency range from DC to 1000MHz in two bands. The low band covers from DC to 0.5MHz. The high band covers from 0.5MHz to 1000MHz. These bands can be selected automatically, manually or by remote control through the remote connector. The 10WD1000, when used with an RF sweep generator, will provide a minimum of 10 watts of swept power. The RF Amplifier stages are protected from over temperature by removing the DC voltage to them if an over temperature condition occurs due to cooling blockage or fan failure. There is a digital display on the front panel to indicate the operate status and fault conditions when an over temperature or power supply fault has occurred. The unit can be returned to operate when the condition has been cleared. The 10WD1000 includes digital control for both local and remote control of the amplifier. This 8-bit RISC microprocessor controlled board provides IEEE-488 (GPIB) and asynchronous full duplex RS-232 control of all amplifier functions.