National Dataset is a medium resolution database addressed to preliminary propagation analysis of large areas. National Dataset is for use in early stages when high accuracy is not required: preliminary coverage estimate, signal attenuation due to large obstacles, optimum location for transmitters, etc. It is possible to integrate with Regional or Urban Dataset.
| DIGITAL TERRAIN MODEL (DTM) |
| Resolution: 45 meters |
| Data Source: SRTM / Topographic Maps 1:50.000 - 1:200.000 / Stereoscopic Pairs |
| RASTER |
| Resolution: 15 / 30 / 45 meters |
| Data Source: Topographic Maps 1:50.000 - 1:200.000 |
| ORTHO-IMAGE |
| Resolution: 15 / 30 / 45 meters |
| Data Source: Satellite Images / Aerial Photographs |
| CLUTTER |
| Resolution: 45 metros |
| Data Source: Satellite Images / Topographic Maps 1:50.000 - 1:200.000 |
| Classes: Woodland, Forest, Open, Water, Industrial/Commercial, Continuous Urban, Discontinuous Urban, etc. |
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