The QB-101 from Spectrum Control is a RF Amplifier with Frequency 2 to 70 MHz, Gain 21.9 dB, Gain Flatness ±0.5 to ±0.8 dB, Noise Figure 4 to 4.5 dB, Output Power 31 dBm. Tags: Power Amplifier, Driver Amplifier. More details for QB-101 can be seen below.