The L5475-1 from Mercury Systems is a GPS/GNSS Filter Amplifier with Frequency 1.565 to 1.585 GHz, Noise Figure 2.5 dB, Attenuation/Rejection 40 dB, Gain 25 dB, Voltage 7 to 35 V. Tags: Module with Connector. More details for L5475-1 can be seen below.