The K4X from Communications & Power Industries is a SATCOM Amplifier System with Frequency 7.9 to 8.4 GHz, Klystron Power 2.5 to 3.3 kW (64.0, 64.8 or 65.1 dBm), Small Signal Gain 77 dB, Power 64 to 65.09 dBm, Power 2511.89 to 3228.49 W. Tags: Rack Mount, Klystron. More details for K4X can be seen below.