The Model 40S6G18-L from AR RF/Microwave Instrumentation is a portable, self contained, liquid-cooled, broadband, Class A solid-state amplifier that operates from 6 to 18 GHz. This amplifier provides an output power of 40 watts with a power gain of 46 dB. It is equipped with a Digital Control Panel (DCP) which provides both local and remote control of the amplifier. The DCP uses a color LCD touchscreen display to indicate the operating status and fault conditions if an overtemperature or power supply fault has occurred. The unit can be returned to operate when the condition has been cleared. All amplifier control functions and status indications are available remotely in GPIB/IEEE488 format, RS-232 hardwire and fiber optic, USB, and Ethernet. This amplifier has been designed to have low spurious signals, linearity and is extremely load tolerant which enables it to be used in many RF applications such as: RF susceptibility testing, antenna/component testing, and communication technology testing. It can be used as a test instrument covering multiple frequency bands and is suitable for a variety of communication technologies such as CDMA, W-CDMA, TDMA, GSM, UWB, WiMAX etc.