The QPA-1805-1880-42-48S from Qualwave is a RF Amplifier with Frequency 1.805 to 1.88 GHz, Gain 42 dB (Power Gain), Power Gain 42 dB, Gain Flatness ±2 dB, Saturated Power 48 dBm. Tags: Power Amplifier. More details for QPA-1805-1880-42-48S can be seen below.