California RTK Correction Service
RTKdata delivers 1-2 cm RTK corrections throughout California via NTRIP (RTCM3), connecting GNSS receivers to 20,000+ reference stations with sub-second latency. No base station needed. One subscription covers every county from the Central Valley to the Sierra Nevada. 30-day free trial included.
- 1-2 cm accuracy via NTRIP
- Free 30-day trial, no credit card
- Works with any GNSS receiver
- 20,000+ RTK stations worldwide
How to Connect to RTKdata in California
Works with Trimble, Leica, Topcon, Emlid, u-blox, Septentrio, and any RTCM v3 receiver.
01
Choose a Plan
Select a subscription or start with the free 30-day trial. Verify coverage across your California project sites, from Bay Area construction to Central Valley fieldwork, before committing.
02
Enter NTRIP Credentials
Copy the server address, port, and mountpoint into your rover or field controller. Compatible with Trimble, Leica, Topcon, Emlid, u-blox, and Septentrio hardware.
03
Verify FIX
Confirm a fixed RTK solution on your receiver. In open-sky conditions across California farmland or coastal sites, expect centimeter-level positioning within seconds.
Why California professionals choose RTKdata
Accuracy
1-2 cm horizontal, 2-3 cm vertical in open sky. RTCM 3.x corrections via NTRIP perform consistently across California terrain, from the flat Sacramento Valley to the mountainous Sierra foothills and dense urban environments in Los Angeles and San Francisco.
Speed
RTK FIX in seconds statewide. Single NTRIP mount point, no manual base switching. Drone operators and survey crews stay productive from first setup on every job.
Availability
99.99% NTRIP endpoint uptime (rolling 12 months). Monitored 24/7 for uninterrupted real-time streams.
Coverage
RTK stations across Los Angeles, San Francisco, San Diego, Sacramento, San Jose, Fresno, Bakersfield, and Riverside. Neighboring states Nevada, Oregon, and Arizona share the same network.
Industries Using RTK Corrections in California
From vineyard mapping in Napa Valley to solar farm surveys in the Mojave, professionals across the state rely on centimeter-level positioning for diverse terrain and industries.
Almond Orchard and Vineyard Precision Management
California produced a record $61.2 billion in agricultural cash receipts in 2024, leading the nation by a wide margin (CDFA). RTK-guided tractors plant almond trees at exact spacing in the Central Valley, while Napa and Sonoma vineyards use centimeter GPS to map vine rows for variable-rate nutrient application.
Utility-Scale Solar and Renewable Energy Siting
California leads the nation in solar energy with over 46 GW of installed capacity (SEIA). RTK corrections enable precise tracker alignment, site grading to exact slope tolerances, and as-built verification on utility-scale installations in Kern County, the Mojave Desert, and the Central Valley.
Post-Wildfire Mapping and Erosion Monitoring
Following the January 2025 LA fires, the USGS acquired airborne LiDAR at 16 points per square meter to quantify damage and debris-flow risk (USGS). Drone operators across California rely on RTK corrections to establish ground control points for post-fire photogrammetric accuracy.
Seismic Fault Mapping and Tectonic Monitoring
Approximately 1,800 GNSS receivers across California feed the ShakeAlert early warning system and track surface fault creep along the San Andreas, Hayward, and Calaveras faults (Seismica). Drone-based LiDAR with RTK maps fault scarps beneath dense vegetation at centimeter resolution.
Delta Levee and Water Infrastructure Monitoring
The Sacramento-San Joaquin Delta protects 1,100 miles of levees shielding 27 million Californians' water supply. With subsidence pushing Delta islands 15-20 feet below sea level, RTK-equipped survey crews perform levee crest elevation checks and emergency repair stakeout for the Department of Water Resources.
Seismic Retrofit and High-Speed Rail Construction
Caltrans operates on a $16.1 billion annual budget, with much of the spending targeting seismic retrofit of bridges and overpasses (CA Legislative Analyst). The California High-Speed Rail project has 119 miles under active construction in the Central Valley. RTK supports machine-guided pile driving and grade verification on rail alignments.
RTKdata vs Other RTK Networks in California
| Criterion | RTKdata | CRTN (Caltrans) | Point One Polaris | Skylark | Trimble VRS Now | Leica SmartNet |
|---|---|---|---|---|---|---|
| Price / mo | $40/mo | Free (public) | $150/mo | ~$49/mo | ~$150/mo | No public information |
| Price / yr | $400/yr | Free (public) | $1,500/yr | ~$500/yr | ~$1.5-2.0k/yr | No public information |
| Free trial | 30 days (auto-ends) | N/A | 14 days | Varies | Varies | Varies |
| Global coverage | 20,000+ stations, 140+ countries | ~430 CA stations only | 2,000+ stations | Regional US/EU | 5,300+ worldwide | 5,100 worldwide |
| Activation | Instant, self-service | Public access, registration | Self-service | Self-service | No public information | No public information |
| Hardware lock-in | None — any RTCM3 | None | None | None | Trimble-optimized | Leica-optimized |
Last updated: March 29, 2026. Competitor pricing verified from provider websites. CRTN station count from Scripps/CSRC. Contact providers for current rates. CRTN (California Real Time Network) is managed by Scripps/SOPAC and provides public access to approximately 430 reference stations. Coverage is densest along the coast and in urban areas. Point One and Skylark offer hardware-agnostic access. Trimble VRS Now and Leica SmartNet deliver strong corrections within their own equipment ecosystems.
Frequently Asked Questions
What is the most cost-effective RTK service for California survey work?
Does RTKdata cover remote areas in the Sierra Nevada and northern California?
Yes. RTKdata aggregates corrections from multiple station networks. Baseline distances may be longer in mountainous terrain, but network RTK interpolation maintains 2-3 cm accuracy in most open-sky conditions.
Which GNSS hardware is compatible with RTKdata in California?
Any receiver supporting RTCM v3 over NTRIP connects without modification. This includes Trimble, Leica, Topcon, Emlid, u-blox, and Septentrio equipment.
How does RTKdata compare to the CRTN network?
CRTN provides public access to approximately 430 stations managed by Scripps/SOPAC. RTKdata offers a broader global network with 20,000+ stations, instant self-service activation, and 99.99% uptime SLA starting at $40 per month.
Can RTKdata handle multipath challenges in downtown Los Angeles or San Francisco?
Dense base station spacing and multi-constellation processing (GPS, GLONASS, Galileo, BeiDou) reduce multipath effects in urban canyons. Network RTK outperforms single-base solutions in dense environments.
Can I test RTKdata on California job sites before subscribing?
Yes. The 30-day trial provides full access to all correction streams. No credit card is required.
What coordinate systems does RTKdata support for California surveys?
Corrections reference NAD83(2011). California has six State Plane zones (Zone 1 through Zone 6, FIPS 0401-0406). UTM Zones 10N and 11N also cover the state.
Experience precise RTK coverage across California
From vineyard mapping in Napa Valley to solar farm surveys in the Mojave, RTKdata provides GNSS corrections that maintain centimeter-level accuracy across diverse terrain. Connect a receiver via NTRIP and reach a fixed solution in seconds. Start a free trial and verify positioning at your California sites.