The AA-12G-4KW-PT from Advanced Amplifiers is a RF Amplifier with Frequency 1 to 2 GHz, Gain 66 dB, Output Power 4000 W, Peak Power 66 dBm, Spurious -60 to -55 dBc. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for AA-12G-4KW-PT can be seen below.