Category General

GNSS Precise Orbits (Ephemerides)

Image of a GNSS Survey Receiver
When it comes to Land Surveying, if you use any sort of GNSS (GPS) equipment, you will deal with GNSS orbits even if you don’t realise it. But when it comes to Static GNSS processing, these are critical in obtaining good results in your GNSS processing.Let’s see what are they and how to download GNSS precise orbits to augment your data processing.

What is GPS time and how to calculate it?

Image of a GPS Navigation Device
GPS time is a time scale maintained by the atomic clocks of satellites and ground control stations of the Global Positioning System (GPS). It consists of a count of weeks and seconds of the week since 0 hours (midnight) Sunday, 6th of January 1980.

The 3G switch-off: How to be prepared as a surveyor

3G Switch-off Surveyor in the Field with a GNSS Receiver and Controller not getting any Mobile Network Signal
As the 3G switch-off looms, surveyors must be prepared for the upcoming changes. This article explores key considerations and practical tips to ensure a smooth transition, helping surveyors adapt and optimize their workflows in the evolving landscape of mobile connectivity.

GNSS vs GPS – what is GNSS?

Rendered image of earth and GNSS Satellites in orbit
GNSS (Global Navigation Satellite Systems) is a term used to describe satellite-based systems that provide positioning, navigation, and timing (PNT) data. GNSS is widely used in geomatics and land surveying to accurately determine the position and orientation of points on the Earth's surface. Other uses outside of land surveying include transportation, navigation applications, agriculture and weather forecasting.

SnakeGrid – The Ultimate Guide

Map of Existing SnakeGrids in the United Kingdom
If you've worked on large engineering projects that span over long but narrow areas, you probably have had difficulties using projected coordinate systems in your surveys....In this article I will explore the meaning of SnakeGrid. I will go over topics like: what is the Snake Grid Coordinate System, what SnakeGrid coordinates are, what are the Snake Grid types out there and SnakeGrid converter software.

What are Land Surveyors? 👷

Land Surveyors on the road doing geometric levelling
At their very core Land Surveyors do measurements. To be more specific, a surveyor gathers positional data to produce accurate representation of the shape of the land and anything on it. Whilst the term surveyor is all encompassing, there are other terms that are used to describe surveyors.

Land Surveying ⛰️ what is it?

Land Surveying Instrument - Digital Level - Geomatics
Land Surveying is the process of gathering, collecting, and processing geographical data for creating a informational report about the surveyed area. Land Surveyors gather positional data to produce accurate representation of the shape of the land and anything on it.