The QPA40-0.1-1-37 from Qualink Microwave is a RF Amplifier with Frequency 100 MHz to 1 GHz, Gain 40 dB, Gain Flatness ±1 dB, Output Power 36 to 37 dBm, Output Power 3.98 to 5.01 W. Tags: Power Amplifier. More details for QPA40-0.1-1-37 can be seen below.