The QBS-227 from Spectrum Control is a RF Amplifier with Frequency 860 to 910 MHz, Gain 42 dB, Gain Flatness ±1.5 dB, Output Power 38 to 39 dBm, Output Power 6.31 to 7.94 W. Tags: Power Amplifier, Driver Amplifier. More details for QBS-227 can be seen below.