The 6547 from Ophir RF is a RF Amplifier with Frequency 12 to 18 GHz, Gain 66 dB, Output Power 64.77 to 65.44 dBm, Output Power 3000 to 3500 W, Harmonics -3 dBc. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier, Power Amplifier, Automatic Gain Controlled Amplifier. More details for 6547 can be seen below.