The QPA-300-500-52-51.7S from Qualwave is a RF Amplifier with Frequency 0.3 to 0.5 GHz, Gain 52 dB, Gain Flatness 1±1 dB, Saturated Power 51.7 dBm, Saturated Power 147.91 W. Tags: Power Amplifier. More details for QPA-300-500-52-51.7S can be seen below.