EMLID Reach RS4 GNSS/RTK Receiver
Survey-Grade Ground Control. Professional survey services powered by EMLID technology.
About the EMLID Reach RS4
The EMLID Reach RS4 provides the ground control accuracy that transforms drone data from approximate to survey-grade. With <20 second fix time, 5mm + 0.5ppm accuracy, and 24+ hour battery life, the RS4 ensures your engineer can rely on our deliverables.
Ground control points (GCPs) tied to real-world coordinates are what separate professional surveying from casual drone photography. We use the EMLID RS4 to establish GCPs that meet the most stringent accuracy requirements.
Key Benefits
- Fast <20 second fix time
- 5mm survey-grade accuracy
- 24+ hour battery for full-day operations
- 5G ready for future connectivity
- Multi-constellation for maximum reliability
Considerations
- Requires cellular or radio correction source for RTK
Technical Specifications
Ideal Applications
Services Using EMLID Reach RS4
Software Ecosystem
Professional software platforms we use to process and deliver EMLID Reach RS4 data.
Compare EMLID Reach RS4
Industries Using EMLID Reach RS4
Real Estate
EMLID Reach RS4 solutions for real estate professionals
Learn MoreConstruction
EMLID Reach RS4 solutions for construction professionals
Learn MoreArchitecture
EMLID Reach RS4 solutions for architecture professionals
Learn MoreHealthcare
EMLID Reach RS4 solutions for healthcare professionals
Learn MoreHospitality
EMLID Reach RS4 solutions for hospitality professionals
Learn MoreManufacturing
EMLID Reach RS4 solutions for manufacturing professionals
Learn MoreEMLID Reach RS4 Service Areas
Professional EMLID Reach RS4 surveying services available across 35+ locations in Southeast Florida & the Florida Keys. 1-hour response time.
EMLID Reach RS4 Frequently Asked Questions
Why do you need ground control for drone surveys?
Ground control points (GCPs) tie aerial data to real-world coordinates with survey-grade accuracy. Without GCPs, drone data accuracy is limited by GPS alone (~1-2 meters). With GCPs, we achieve 1-2cm accuracy that engineers and surveyors require.
What accuracy can I expect with EMLID RS4?
The RS4 achieves 5mm + 0.5ppm horizontal accuracy in RTK mode. For a typical 1km baseline, that's approximately 5.5mm accuracy—meeting survey-grade requirements for engineering and construction applications.
How long does it take to set ground control points?
With the RS4's <20 second fix time, establishing a GCP takes approximately 2-3 minutes including setup. For a typical 50-acre site requiring 5 GCPs, ground control adds about 30-45 minutes to the field capture.
Learn More
Expand your knowledge about surveying technology.
Ready to Use EMLID Reach RS4 for Your Project?
Get a free quote for professional survey services using EMLID technology.