The XTRD-100DBS is a highly efficient rack mountable traveling wave tube amplifier (TWTA) designed for test and measurement applications. The unit includes RF gain control, a solid state pre-amplifier, cooling, and monitoring and control (M&C) system. Rack space is conserved because the amplifier occupies only 3 rack units (5¼ inches) of a standard 19 inch rack cabinet. Nominal weight is 50 pounds.