The 5138 from Ophir RF is a RF Amplifier with Frequency 1 to 2 GHz, Gain 65 dB, Gain Flatness ± 4.0 dB max with no ALC, ± 1.0 dB max with internal leveling, Output Power 63.98 dBm, Output Power 2500.35 W. Tags: Power Amplifier. More details for 5138 can be seen below.