The dB-3903 from dB Control is a RF Amplifier with Frequency 8 to 12 GHz, Gain 69.6 dB, Output Power 69.54 dBm, Output Power 9000 W, Pulse Power 69.54 dBm. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier. More details for dB-3903 can be seen below.