The BZRW42-18501950-131043-101315 from B&Z Technology is a RF Amplifier with Frequency 18.5 to 19.5 GHz, Gain 38 to 43 dB, Gain Flatness ±0.5 to 1.3 dB (TX), ±0.5 to 1.3 dB (RX), Noise Figure 2.5 dB (Rx), Output Power 10 dBm. Tags: Low Noise Amplifier. More details for BZRW42-18501950-131043-101315 can be seen below.