The QBS-234 from Spectrum Control is a RF Amplifier with Frequency 1.93 to 1.99 GHz, Gain 38 to 40 dB, Noise Figure 6 to 6.5 dB, Output Power 40 to 42 dBm, Output Power 10 to 15.85 W. Tags: Power Amplifier. More details for QBS-234 can be seen below.