The QPA30-33-37-28 from Qualink Microwave is a RF Amplifier with Frequency 33 to 37 GHz, Gain 30 dB, Gain Flatness ±2 dB, Output Power 27 to 28 dBm, Output Power 0.5 to 0.63 W. Tags: Power Amplifier. More details for QPA30-33-37-28 can be seen below.