Method for the supply of encoded geoimage data

A method for supplying encoded geoimage data from a server unit to at least one navigation receiver module for a geographical region pre-defined by geographical image data stored in the server unit, via at least one wireless communication interface between the server unit and the at least one navigation receiver module, comprising:

• transmitting a message at least with position information from a navigation receiver module to the server unit;
• selecting an expectancy range within the geographical region by the server unit based at least on the position information;
• determining first geoimage data reproducing the expectancy range;
• encoding the first geoimage data in the server unit to produce first encoded geoimage data;
• and
• transmitting the first encoded geoimage data from the server unit to the navigation receiver module via the at least one wireless communication interface.