Orphéon is the first French multi-constellation network in France.

Metropolitan France, Antilles and Guadeloupe

The positioning accuracy is independent of the distance to the station

In NRTK network corrections mode the centimeter accuracy is independent of the distance to the nearest physical network station.

With the Orphéon network, you work with identical precision throughout the territory thanks to a cell of several reference stations created around the user and the homogeneous distribution of the stations over all the areas covered, whatever your position. You receive corrections from a combination of multiple stations for greater stability and accuracy.


A cell of several stations surrounding the user and regular and homogeneous layout

In single-station mode (agriculture), the distance from the nearest reference station is never more than 30 km.

A single setting

There is only one hardware configuration to connect to the network anywhere in France, it is our server which is responsible for automatically establishing the cell of observation stations that suits you.

The geometric regularity of our layouts

The Orpheon network has 220 stations in mainland France, all Full GNSS i.e.: GPS, GLONASS, Galileo and BeiDou as well as a historical presence in the French West Indies.

The dense network of permanent stations is arranged regularly every 60 km. Each link in the Orphéon infrastructure has been designed to offer a high-precision RTK correction service available in all circumstances. Border areas are complemented by our partnership agreements within Europe.

A very regular presence, without compromise and without equivalent in France.

The careful choice of layout for each of our 215 reference stations creates a linear and regular geometric mesh. Territory coverage is uniform wherever you are.

The Orphéon network thus stands out significantly from its competitors who are multiplying the number of reference stations because of their disorderly location on the territory and whose coverage is losing homogeneity, sometimes leaving very large distances in the meshes of their network.

Interactive maps of the Orpheon network

The Orpheon network: 15 years of presence in the West Indies

The West Indies have always been the subject of particular attention at Geodata Diffusion, it is in this region that the Full GNSS service was offered for the first time in preview

West Indies

Integration into a large global network

HxGN SmartNet allows you to travel without interruption

in more than 20 European countries.

This secure infrastructure, set up and managed by the Hexagon group, allows the pooling of resources whose management is centralized. It also allows you to organize a service available 24/7 and offer one of the highest availability rates on the market.

Increasing real-time positioning accuracy has become a critical issue and requirement for high-growth areas such as autonomous navigation and precision agriculture.

Drawing on its international experience and its expertise in real-time positioning, the Hexagon group, within its various companies, intends to offer the most homogeneous and most extensive real-time positioning service with centimeter precision.

To guarantee continuous service and consistent quality throughout the entire territory, we share reference sites within the European network of our Hexagon AB group..

The service is marketed under the HxGN SmartNet brand

With more than 5,300 reference stations worldwide, HxGN SmartNet is the world’s largest provider of satellite-based correction services (GNSS).

The highest availability rate on the market

The strength of the European network is to share infrastructures and the most qualified technical teams to guarantee identical control procedures across the entire coverage area, continuous and regular reinforced monitoring of all stations and the network. This international technical team from a major manufacturer is responsible for supervising all installations 24 hours a day, 365 days.

Part of Hexagon

By joining the Hexagon group in 2014, the Orphéon network joins a vast network of reference stations within the first operational European NRTK network operating in 25 countries including 18 in Europe. Drawing on its international experience and its expertise in real-time positioning, the Hexagon group, within its various companies, intends to offer the most consistent and extensive real-time positioning service with centimeter precision.

This European network allows us to integrate additional reference stations and extend the coverage of the Orphéon network for French customers. Coverage is enhanced at borders through the sharing of reference stations from our international Hxgn SmartNet network. In this way, even near a border, it is possible to work in a network while being within an RTK cell (and no longer in extrapolated mode).

Increased productivity and quality of satellite positioning

Full GNSS is the addition of the Galileo and BeiDou satellites to the GPS and GLONASS satellites, which allows you to significantly increase the number of satellites observed simultaneously by your GNSS antenna.

With Full GNSS you work further and longer in wooded areas or bordered by buildings, where some satellites are hidden or even unusable by the equipment while maintaining a correct and precise geo-referenced position.

Full GNSS also offers faster access to precise and more stable positioning thanks to the third frequency GPS and Galileo (L5) allowing easier resolution of phase ambiguities and rejection of multipaths.

Orpheon Unlimited Subscriptions

The Premium Orpheon offer

These subscriptions give access to unlimited Real-Time correction services in the NRTK Full GNSS centimetric repeatable GPS + Glonass + Galileo + BeiDou network.

Orpheon Hourly packages

The non-binding offer

This is access to the N-RTK GNSS correction network with real-time centimeter accuracy (GPS, Glonass). Often used to discover our services.

Online post-processing and RINEX files from the Orpheon network

The 3D control offer

This is access to the N-RTK Full GNSS correction network with centimeter precision (GPS, Glonass, Galileo, Beidou). Often used to control the accuracy of its measurements or even for areas where a mobile internet connection is not available for real time.

The Geodata offer for Precision Agriculture

The dedicated offer

A specific offer of packages and subscriptions corresponding to your needs and adapted to your operation.

Choice of SIM card

Mobile Internet access

To save you additional steps and expenses, we have forged close partnerships with the major French mobile operators SFR and Orange to provide you with SIM cards for mobile internet at the best conditions.

Orpheon Smartphone App

Network and subscription monitoring

The free Orpheon application gives you access from your smartphone to a large number of very practical and complementary features of your subscription or package.

Customer area

Consult freely :

      • Orpheon GNSS network status
      • Your personal information
      • The contracts you have entered into
      • Your login history
      • The remaining credit on your hourly rate

Frequently asked Questions

You will find in this FAQ the answers to the most common questions about the practical use of Orpheon, its operation, its infrastructure. To always provide more answers to our subscribers in the field, the FAQ evolves and is regularly enriched with new answers.


Receive your invoices directly

You now have the possibility of receiving your Geodata Diffusion invoices in electronic format for all the services subscribed to. When you choose the electronic invoice option, you agree that your company will no longer receive paper invoices from us.