The 5250 from Ophir RF is a RF Amplifier with Frequency 500 MHz to 1 GHz, Gain 58 dB, Gain Flatness ± 2.5 dB max, Output Power 53.979 to 56.99 dBm, Output Power 249.98 to 500.03 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 5250 can be seen below.