The QPA-18000-26500-40-40S from Qualwave is a RF Amplifier with Frequency 18 to 26.5 GHz, Gain 40 dB, Gain Flatness ±2 dB, Saturated Power 40 dBm, Saturated Power 10 W. Tags: Power Amplifier. More details for QPA-18000-26500-40-40S can be seen below.