The 5285 from Ophir RF is a RF Amplifier with Frequency 2.0 to 4.0 GHz, Gain 54 dB, Gain Flatness ± 3.0 dB max, Output Power 50.79 to 53.01 dBm, Output Power 119.95 to 199.99 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 5285 can be seen below.