The SDCORS network is designed to provide full coverage of Shandong Province of China with network RTK capability and it is an effort by the provincial government to improve and modernize its surveying infrastructure. The system consists of up to 120 reference stations within or in the close vicinity of the province and will operate continuously to provide network-RTK or network-DGPS services to subscribers. SDCORS will be operated by Shandong Provincial Agency of Surveying and Mapping.

Forty-nine Topcon Net-G3 GNSS CORS receivers and CR-G3 GNSS choke ring antennas, and TopNet software with 120 connection nodes have been selected for SDCORS through a public tender.

The Topcon Net-G3 family of receivers that will be used for SDCORS incorporate Topcon G3 technology which allows for universal signal tracking compatible with all existing and planned satellite navigation systems.  The Topcon TopNet software is a complete suite of modular software that enables full receiver remote control, data streaming, downloading of data and commands, display of the system status, user account management, plus other options.

TopNet is the central piece of a Topcon reference station network. With Net-G3 and TopNet, Topcon provides an industry-leading solution for reference station networks.