Skip To Content Skip To Navigation
Got questions? Call us at 1 (800) 243-1414.
field worker in open field
What is CSVSN?

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.

Go to CSDS CSVSN Real-Time Network →

What areas does CSVSN cover?

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.

How can I utilize CSVSN?

CSVSN subscriptions are sold by California Surveying & Drafting Supply. Call 1 (800) 243-1414 or email to find out which solution is best for you.

CSVSN Map of California
CSVSN - Serving all of California

Still have questions?
Contact us