Mapping Topic: Accuracy

Why Doesn’t My GPS Data Line up with My GIS? Eos explains common challenges to GNSS workflows on any device, and what to do to fix them.

This article gives you an overview of the available global SBAS systems, as well as their coverage areas and what accuracy to expect.

One question we get asked is, “How do I know if my iPad/Android is using my Bluetooth GNSS receiver or the internal iPad/Android GNSS receiver?” Here's how.

In this article we show you how to get high-accuracy locations, including submeter and cm data, with your Arrow GNSS receivers on any iPad or iPhone.

What is the difference between the ellipsoid, mean sea level, geoid, geoid height, and orthometric height? Here's everything to know about elevation.

What is SBAS? In this article, discover how to get real-time submeter differential corrections for free, and where it's possible.

High-accuracy data collection has come a long way since the USA launched the first GNSS constellation, GPS, in the 1970s. Today, all you need to get started with submeter or centimeter data collection is a smart device, a collection app, and a GNSS receiver that works with both.

In this article, we show you how to generate accurate orthomosaics and DEMs by setting up just 5 ground control points (GCPs) and using Site Scan Manager.

Wondering how to know if your mobile device GNSS accuracy is correct? This article will break down common issues and how to fix them on iOS or Android.

How can you get high-accuracy data corrections in the world's most remote areas? In this article, Eos explains two options: Atlas^® service or SafeRTK^®.

This article will show you how to calculate your total antenna height, including phase center, mounting plate height, and range pole, for use with RTK elevations.

Want to use external Bluetooth® GPS receivers in your work, but not sure where to start? Eos has compiled five resources to help you get started on your journey.