The QPA-3300-4200-33.5-33 from Qualwave is a RF Amplifier with Frequency 3.3 to 4.2 GHz, Gain 33.5 dB (Power Gain), Power Gain 33.5 dB, Gain Flatness ±1.5 dB, P1dB 33 dBm. Tags: Power Amplifier. More details for QPA-3300-4200-33.5-33 can be seen below.