The QBH-8900 from Spectrum Control is a RF Amplifier with Frequency 800 to 960 MHz, Gain 22 dB, Gain Flatness ±1 dB, Noise Figure 3 dB, Output Power 31 to 31.5 dBm. Tags: Power Amplifier, Driver Amplifier. More details for QBH-8900 can be seen below.