The Model 167 from Applied Systems Engineering is a RF Amplifier with Frequency 1 to 18 GHz, Noise Figure 35 dB, Output Power 53.98 dBm, Output Power 250 W, Spurious -50 dBc. Tags: Benchtop / Rackmount, Travelling Wave Tube Amplifier, Power Amplifier. More details for Model 167 can be seen below.