The K4D from Communications & Power Industries is a SATCOM Amplifier System with Frequency 17.3 to 18.1 GHz, Klystron Power up to 2.4 kW (63.8 dBm), Small Signal Gain 75 dB, Power 63.7 dBm, Power 2398.83 W. Tags: Rack Mount, Klystron. More details for K4D can be seen below.