Xirio-Online basic calculation rates allow free high resolution calculations and the use of free cartography available in Xirio-Online during the term of employment.

This is a public free cartography from the SRTM 2006 projet developed by NASA.

The development of a mapping layer includes the integration of basic information (planimetry and altimetry) along with layers of urban planning and legal and other conditions created by the working team within the project.

After setting the conceptual aspects that are to be treated in the development of information layers, the next step is the development of thematic layers and their integration into a broader Geographic Information System. It includes the following phases: information collection, production and processing, and verification and correction of reading errors

The public mapping is based largely on untested models which miss some of the phases mentioned above, as data verification and error correction. For this reason, the use of public mapping, although it is acceptable as a first approximation, may contain inaccurate values, especially on the coastline and in mountainous areas due to reflections from the sea and leaps, which would lead to results with less accuracy.

However, the pay cartography, since it comes from official sources of information, offers broad guarantees of development and accuracy of the final cartographyc data.

Some of the services tha can be provided optimally by using pay cartography are:

•  Services where the line of sight between transmitter and receiver is crucial for the reception: Fixed Service, WiMAX, WiFi, etc.

•  Simulation of urban coverage. There is no public urban cartography.

•  Other Broadcast Services that may be calculated using free cartography, although the pay cartography will provide best accuracy in calculations and guarantee of results.