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Tennessee Builders Alliance x Track3D Webinar | August 27

Updated July 2026

EMLID

Learn what EMLID is, how its GNSS receivers deliver precise positioning for surveying and mapping, common use cases, and why they are popular with surveyors.

Definition

EMLID is a company known for making affordable, high-precision GNSS receivers used in surveying, mapping, and drone work. Its devices help users capture accurate positions on the Earth, often down to centimetre level, without the high cost traditionally associated with survey-grade equipment.

The name is commonly used to refer to these receivers themselves, which have become popular tools for collecting precise coordinates and ground control points. They are widely used alongside drones and field surveys.

In simple terms, EMLID refers to a range of GNSS receivers that make precise positioning accessible for surveying and mapping projects.

How It Works

EMLID receivers use signals from multiple global navigation satellite systems to determine position. To reach high accuracy, they typically use correction techniques such as RTK or PPK, comparing signals with a reference to remove errors and pin down location to within a few centimetres.

In the field, a receiver can act as a base station providing corrections while another works as a rover collecting points, or it can record data for processing later. This flexibility lets surveyors gather accurate control points and measurements efficiently.

Applications

EMLID receivers are used in land surveying, drone mapping, construction, and agriculture. Surveyors use them to collect ground control points and precise measurements, drone operators to improve mapping accuracy, and field teams to stake out and record positions on site.

Benefits

  • High-precision positioning at an accessible cost.
  • Support for RTK and PPK correction methods.
  • Flexible use as base or rover.
  • Reliable ground control for drone mapping.
  • Efficient field data collection.

Related Terms

  • GNSS (Global Navigation Satellite System)
  • RTK (Real-Time Kinematic)
  • PPK (Post-Processed Kinematic)
  • GCP (Ground Control Point)

Frequently Asked Questions

What is EMLID used for?

EMLID GNSS receivers are used for precise positioning in surveying, drone mapping, construction, and agriculture.

How accurate are EMLID receivers?

With correction techniques such as RTK or PPK, they can achieve centimetre-level accuracy.

What is the difference between RTK and PPK on EMLID?

RTK applies corrections in real time during capture, while PPK applies them afterward during processing.

Can EMLID receivers be used with drones?

Yes, they are commonly used to collect ground control points and improve the accuracy of drone mapping.

About Track3D

Track3D helps teams turn precise GNSS and drone data into accurate digital twins and reality capture insights. Learn more at Track3D.

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