Model XTRT-400K Touch screen Rack Mount TWTA 13.75 ~ 14.5. Nominal power of 350 W on the flange with built-in redundancy controller. Is a highly efficient rack mountable traveling wave tube amplifier (TWTA) designed for fixed and mobile uplink applications. The unit includes RG fain control, a solid state pre-amplifier, RF filters, cooling, and monitoring and control (M&C) systems. This model amplifier with a touch screen front panel for easy customer interface.