The California Surveying and Drafting Supply Virtual Station Network (CSVSN) is a dynamic GNSS Real-Time Kinematic Network that provides more reliability, coverage, and accuracy than traditional single-base networks.
CSVSN provides RTK corrections to your equipment, enabling you to achieve up to one-centimeter accuracy. With no need for a station or rover radio, CSVSN users are able to reduce their hardware costs by up to 50% while achieving better accuracy to your precision surveying & mapping applications.
CSVSN services are available over two networks:
- Northern California, which spans from Redding to Bakersfield,
- Southern California, which spans from Lancaster to Imperial Beach.
Our service area currently covers 105,000 square miles, making the CSVSN California’s largest GNSS network — and it's continuously expanding!
How does CSVSN work?
Our network is fully redundant ensuring no signal is lost. We utilize dedicated technology that manages and monitors over 60 reference stations across California. This helps ensure accuracy and network availability regardless of power outages, loss of reference stations, or reference station movement due to seismic activity.
What products does CSVSN work with?
CSVSN works with virtually all major surveying and GIS/GPS products.