The DB.021.0G5757AC from Elite RF is a RF Amplifier with Frequency 20 MHz to 1 GHz, Gain 57 dB, Gain Flatness ±4 dB, Output Power 53 to 56.9 dBm, Output Power 200 to 500 W. Tags: Benchtop / Rackmount, Power Amplifier. More details for DB.021.0G5757AC can be seen below.