The MS38SN4 from Minewsemi is a GNSS Module with Frequency 1561.098 to 1575.42 MHz (BDS-B1/GPS-L1/GLONASS-G1/GALILEO-E1), Tracking Sensitivity -165 dBm, Cold Start Sensitivity -149 dBm, Cold Start 24 Sec, TTFF Hot Start 1 Sec. Tags: Surface Mount, Module. More details for MS38SN4 can be seen below.