Email Us: [javascript protected email address] Toll Free: 1-866-642-1880

Septentrio GeoTagZ


GeoTagZ enables a revolutionary new way of surveying.



When using GeoTagZ in combination with the AsteRx-m UAS receiver, it is now possible to obtain centimetre-level RTK ground precision from aerial survey. Using UAVs dramatically reduces time and cost in comparison to traditional ground survey.

Ground control points link aerial imagery to accurate location coordinates on the ground. However, setting out and surveying the position of ground control points is time consuming and expensive. In addition, ground surveys of mines, freshly reclaimed land and other geographically challenging locations may be hazardous if not impossible. GeoTagZ effectively removes the need for ground control points by updating the aerial photographs with high precision camera locations.

Smaller than a credit card, the AsteRx-m2 UAS and AsteRx-m2a UAS are Septentrio’s smallest and most efficient OEM receiver boards. Easy to integrate, they deliver precise multi-frequency, multi-constellation measurements for less than 1 W giving you more time in the air.

As well as logging GNSS data, the AsteRx-m2 UAS and AsteRx-m2a UAS record shutter-synchronized events from the onboard camera during aerial survey flights. It is these events which are then used by GeoTagZ to embed RTK-level camera locations in the images.

Whether using the updated photographs with embedded RTK-level positions or the position data in CSV format, the output of GeoTagZ provides direct input for image processing software.


  • No need for ground control points
  • No need for real-time RTK corrections
  • GeoTagZ output provides direct input for image processing software



GeoTagZ from Septentrio can be ordered through TerrisGPS. Please feel free to get in touch with us using the Request Pricing form if you would like more information.

Testimonial Icon

Client Testimonials

This page is having a slideshow that uses Javascript. Your browser either doesn't support Javascript or you have it turned off. To see this page as it is meant to appear please use a Javascript enabled browser.

"Thank you for your prompt service. All seems to be working well again. Your techs were very helpful with the troubleshooting."
J.O. - Ground Navigation
"Thanks for all the troubleshooting help, also to John for his assistance and the prompt answers from you guys!"
F.A. - Survey Industry

Testimonial Icon

Copyright , TERRISGPS, All rights reserved, Privacy Policy, Terms