The MS31SN1 from Minewsemi is a GNSS Module with Frequency 1575.42 MHz (GPS, GALILEO, QZSS), 1561.098 MHz (BDS), 1602.5625 MHz (GLONASS), Tracking Sensitivity -162 dBm, Cold Start Sensitivity -148 dBm, Cold Start 32 Sec, TTFF Hot Start 1 Sec. Tags: Surface Mount. More details for MS31SN1 can be seen below.