The 5283 from Ophir RF is a RF Amplifier with Frequency 2.0 to 4.0 GHz, Gain 49 dB, Gain Flatness ± 3.0 dB max, Output Power 46.021 to 47.78 dBm, Output Power 40 to 59.98 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for 5283 can be seen below.