... service Detailed Product DescriptionGPS/LONASS/BEIDOU Rubidium Synchronous Clock Receiver receives GPS, GLONASS, BEIDOU, GLONASS synchronous clock signal ... .CC86131(GPS/LONASS/BEIDOU Rubidium Synchronous Clock Receiver) receives GPS, GLONASS, BEIDOU, GLONASS synchronous clock signal ... (GPS off and the temperature changes less than 5 °C, 24 hours, the average accuracy) Boot features: power ...