The 5081 from Ophir RF is a RF Amplifier with Frequency 0.01 to 200 MHz, Gain 57 dB, Gain Flatness ± 2.5 dB max, Output Power 53.01 to 56.02 dBm, Output Power 199.99 to 399.94 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 5081 can be seen below.