Washington RTK Correction Service
RTKdata delivers 1-2 cm RTK corrections across Washington 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 Puget Sound to the Palouse. 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 Washington
Works with Trimble, Leica, Topcon, Emlid, u-blox, Septentrio, and any RTCM v3 receiver.
01
Choose a Plan
Select a subscription or begin with a free 30-day trial. Evaluate corrections at your Washington job sites — from a Yakima Valley orchard to a Puget Sound waterfront project — with no upfront commitment.
02
Enter NTRIP Credentials
Configure your rover or field controller with the server address, port, and mountpoint. Supports Trimble, Leica, Topcon, Emlid, u-blox, and Septentrio receivers out of the box.
03
Verify FIX
Confirm a fixed RTK solution on your device. Washington’s terrain ranges from sea-level tideflats to volcanic peaks above 14,000 feet, and network RTK interpolates corrections from surrounding stations for consistent centimeter accuracy across all elevations.
Why Washington professionals choose RTKdata
Accuracy
1-2 cm horizontal, 2-3 cm vertical under open sky. Multi-constellation RTCM 3.x corrections via NTRIP hold steady across Washington's varied landscapes — from the flat Columbia Basin to dense Cascade Range canopy and along 3,026 miles of saltwater shoreline on Puget Sound and the Pacific coast.
Speed
RTK FIX in seconds anywhere in Washington. A single NTRIP mount point eliminates manual base switching. Field crews maintain pace during narrow agricultural harvest windows and time-sensitive construction pours.
Availability
99.99% NTRIP endpoint uptime over a rolling 12-month period. Monitored 24/7, including through Washington's wet winters and marine fog conditions.
Coverage
Stations spanning Seattle, Spokane, Tacoma, Yakima, Bellingham, Olympia, Kennewick, and Wenatchee. Neighboring Oregon, Idaho, and Alaska share the same network for seamless cross-border corrections throughout the Pacific Northwest.
Industries Using RTK Corrections in Washington
Washington’s agricultural valleys, old-growth forests, active volcanoes, and booming tech corridor generate positioning requirements that only centimeter-level RTK can meet.
Apple and Hop Precision Agriculture
Washington leads the nation in apple production, harvesting over 180 million bushels annually from more than 69,000 acres in the Yakima Valley and Wenatchee districts (NW Horticultural Council). The state also grows roughly 75% of all U.S. hops. RTK auto-steer guides tractors through tight orchard rows and hop trellises where GPS-only drift causes crop damage.
Timber Harvesting and Forest Road Engineering
Over half of Washington is forested — nearly 23 million acres — and the state produces 3.75 billion board feet of lumber annually, ranking second nationally (WFPA). RTK positions harvest boundaries, log landing layouts, and forest road alignments on steep slopes in the Olympic and Cascade ranges.
WSDOT Floating Bridge and Highway Surveying
WSDOT maintains over 7,000 miles of state highways and nearly 3,000 bridges. Washington is home to the three longest floating bridges in the world. RTK supports construction staking, earthwork verification, bridge deck profiling, and mobile LiDAR control on these corridors.
Volcano and Lahar Monitoring
Mount Rainier and Mount St. Helens are among the most closely monitored volcanoes in the Cascades. RTK-grade GNSS supports ground deformation measurement, lahar pathway mapping, and evacuation route surveying across Pierce, Lewis, and Cowlitz counties where over 100,000 residents live in lahar hazard zones.
Northwest Seaport Alliance Container Terminals
The Northwest Seaport Alliance, jointly operating the Ports of Seattle and Tacoma, handled 3.3 million TEUs in 2024 (NWSA). RTK guides container crane positioning, berth dredging, quay wall alignment, and intermodal rail yard grading with centimeter accuracy for automated stacking crane calibration.
Tech Campus Construction and Expansion
Microsoft's $5 billion Redmond campus refresh replaces 12 older buildings with 17 new structures. Amazon continues expanding office towers in Bellevue. RTK-guided machine control supports deep excavation, tower crane positioning, and structural steel alignment on dense urban sites with tight construction tolerances.
RTKdata vs Other RTK Networks in Washington
| Criterion | RTKdata | WSRN | Point One Polaris | Skylark | Trimble VRS Now | Leica SmartNet |
|---|---|---|---|---|---|---|
| Price / mo | $40/mo | ~$158/mo ($1,900/yr) | $150/mo | $69/mo | ~$150/mo | No public information |
| Price / yr | $400/yr | $1,900/yr | $1,500/yr | $699/yr | ~$1.5-2.0k/yr | No public information |
| Free trial | 30 days (auto-ends) | No | 14 days | Varies | Varies | Varies |
| Global coverage | 20,000+ stations, 140+ countries | WA stations only | 2,000+ stations | Regional US/EU | 5,300+ worldwide | 5,100 worldwide |
| Activation | Instant, self-service | Registration required | Self-service | Self-service | No public information | No public information |
| Hardware lock-in | None — any RTCM3 | Trimble Pivot platform | None | None | Trimble-optimized | Leica-optimized |
Last updated: March 30, 2026. Competitor pricing verified from provider websites. WSRN pricing from wsrn3.org. The Washington State Reference Network (WSRN) is operated by Seattle Public Utilities on a Trimble Pivot platform. Annual subscriptions cost $1,900 and provide NTRIP access to CORS stations concentrated in the Puget Sound region. Coverage does not extend uniformly across all 39 counties. WSRN does not offer a free trial.
Frequently Asked Questions
Which RTK correction service provides statewide coverage in Washington?
How does RTKdata compare to the WSRN?
The Washington State Reference Network charges $1,900 per year and runs on a Trimble Pivot platform with coverage concentrated around Puget Sound. RTKdata costs $400 per year, supports any RTCM3-compatible receiver, offers 20,000+ stations across 140+ countries, and provides instant self-service activation with a free 30-day trial.
Can I use RTK for precision agriculture in the Yakima Valley?
Yes. RTK auto-steer and variable-rate application are standard practices in Washington apple orchards, hop fields, and wine grape vineyards. Corrections maintain sub-inch accuracy for row guidance, canopy spraying, and mechanical harvesting across the irrigated terrain of central Washington.
What receivers work with RTKdata in Washington?
Any GNSS receiver supporting RTCM v3 over NTRIP connects without modification. This includes Trimble, Leica, Topcon, Emlid, u-blox, and Septentrio equipment used in Washington forestry, construction, and agricultural operations.
Does RTK accuracy hold in dense Cascade Range timber?
NTRIP corrections stream reliably via cellular data regardless of canopy cover. Satellite visibility is the limiting factor under dense forest canopy. Multi-constellation receivers (GPS + GLONASS + Galileo + BeiDou) improve fix rates in challenging timber environments. Many Washington foresters pair RTK with post-processed solutions for work deep in the Olympics and Cascades.
Is there a free trial for Washington projects?
Yes. The 30-day trial gives full access to all correction streams with no credit card required. It ends automatically. Test coverage at your Washington sites — from a Spokane construction project to a Wenatchee orchard — before committing to a subscription.
Which coordinate systems does RTKdata support for Washington surveys?
Corrections reference NAD83(2011). Washington has two State Plane zones: North (FIPS 4601) and South (FIPS 4602), both using Lambert Conformal Conic projection in US survey feet. The state spans UTM Zones 10N and 11N, with the boundary near 120°W longitude. Western Washington falls in Zone 10N and eastern Washington in Zone 11N.
Start surveying with centimeter accuracy across Washington
Whether you are guiding auto-steer through Yakima Valley apple rows, staking WSDOT highway alignments on a Cascade pass, or mapping lahar evacuation routes near Mount Rainier, RTKdata provides the GNSS corrections to reach a fixed solution in seconds. Connect any NTRIP-compatible receiver and begin your free 30-day trial today.