The 5051 from Ophir RF is a RF Amplifier with Frequency 100 to 500 MHz, Gain 55 dB, Gain Flatness ± 2.0 dB, Output Power 53.979 to 54.77 dBm, Output Power 249.98 to 299.92 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 5051 can be seen below.