Marxact – Company | Mission | UNI-GR1 | Surveying software

Marxact is a Dutch company that focuses on the development and sales of their GNSS receiver.

gnss receiver manufacturers Marxact

They are based in a city called Hilversum. It is kind of close to Amsterdam.

The people of Marxact

Behind the company there are two people. These are Tommy van der Heijden en Raoul van Ginkel. They have their roots in ICT and cable works. That is also why they started the company Marxact in 2016. To them it was strange that people in the field were not land surveying themselves. But that they always depended on land surveyors. After having this thought they decided to set up Marxact and to develop their own GNSS receiver.

Their mission

The mission of this company is to make land surveying reachable for as many people as possible. First thing they did is to develop an affordable GNSS receiver. The name of this GNSS receiver is UNI-GR1. After that they started to add some more for GPS surveying necessary tools. They developed a cloud solution. Marxact calls this solution UNI-cloud. Also they have their own NTRIP network. Also the name of this network starts with UNI. It is UNI-RTK premium. After all we can conclude that with all this extra side products they get close to reach their mission.

The main product of Marxact: UNI-GR1

The first product is their main product. It is the UNI-GR1. Without this product their side products would not make much sense.

The UNI-GR1 of Marxact


On their website you have to give your details to see the specififications of the UNI-GR1. We gathered the most important onces for you on this page.

  • Dimensions: 140x140x90 mm
  • Weight: 800 gram
  • Ingress protection: IP67
  • Corrections: RTCM 2.x / RTCM 3.x / UNI Binary / UNI-Cloud
  • Position output: NMEA-0183 / NMEA-2000 / RINEX
  • GNSS signals tracked: Signal tracked GPS (L1/L2/L5), Glonass(L1/L2), Galileo (E1 / E5a / E5b), Beidou (B1/B2/B3)
  • Number of channels: 432

The most noticeable feauture of the UNI-GR1 is the LED ring. It shows different colors and in that way this GNSS receiver can communicate.

Best surveying software for the GNSS receiver of Marxact

It is true that Marxact has their own software. But the best software for the UNI-GR1 is Apglos Survey Wizard. Because Apglos Survey Wizard is more complete and you can download it for free from the Google Play Store. It is easy to use.

Just try it.

Get land survey app Apglos Survey Wizard on the Google Play Store