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D21 dual-card dual-standby 4G CORS network module is a dual-backup, stable and reliable 4G CORS network data transmission module independently developed by Lianshi.It can be used in the system with high data link, such as UAV, autopilot, precision agriculture, etc. This module can solve the problem of data discontinuity caused by the occasional disconnection of single network signal, single module signal difference, network base station switching or restart. It can be used for RTK base station data transmission or mobile station differential data transmission.
