The L5878 from Mercury Systems is a GPS/GNSS Filter Amplifier with Frequency 1.56542 to 1.58542 GHz, Noise Figure 2.7 to 3.2 dB, Attenuation/Rejection 45 to 75 dB, Gain 10 to 14 dB, Output Power 40.6 dBm. Tags: Module with Connector. More details for L5878 can be seen below.