The QPA-2300-4200-53-47.8S from Qualwave is a RF Amplifier with Frequency 2.3 to 4.2 GHz, Gain 53 dB, Gain Flatness ±2.5 dB, Saturated Power 47.8 dBm, Saturated Power 60.25 W. Tags: Power Amplifier. More details for QPA-2300-4200-53-47.8S can be seen below.