The QLA-4000-8000-22-25 from Qualwave is a RF Amplifier with Frequency 4 to 8 GHz, Gain 22 dB (Small Signal), Small Signal Gain 22 dB, Gain Flatness ±1 dB, Noise Figure 2.5 dB. Tags: Low Noise Amplifier. More details for QLA-4000-8000-22-25 can be seen below.