| Map Name | type | detail (meters) | dist to center (mi) | hcentered(%) | vcentered (%) | "quality" | display map |
| Relief World Map | 0 | 5000 | Click here | ||||
| APRSworld | APRSworld | 4 | 0 | 5 | Click here | ||
| chicago.pdb | PocketAPRS | 10 | 7.3 | 16.1 | 20.6 | 10 | Click here |
| ilcookco.mp | APRSdos | 23 | 7.7 | 10.8 | 30.9 | 23 | Click here |
| ilneast.mp | APRSdos | 29 | 24.3 | 76.0 | 49.2 | 789 | Click here |
| ilnorth.mp | APRSdos | 64 | 45.2 | 78.1 | 8.9 | 1605 | Click here |
| iailinmo.mp | APRSdos | 221 | 117.0 | 59.0 | 4.7 | 2352 | Click here |
| nexrad/rad_mkx.geo | NWSRadar | 500 | 77.6 | 52.1 | 96.6 | 1987 | NEXRAD DOUSMAN,WI |
| nexrad/rad_lot.geo | NWSRadar | 500 | 12.5 | 14.7 | 12.7 | 1987 | NEXRAD ROMEOVILLE,IL |
| usiroads.pdb | PocketAPRS | 500 | 587.7 | 18.9 | 26.3 | 1987 | Click here |
| usa.pdb | PocketAPRS | 500 | 587.7 | 18.9 | 26.3 | 1987 | Click here |
| usa.mp | APRSdos | 1429 | 414.9 | 31.9 | 4.7 | 2916 | Click here |
| world.mp | APRSdos | 6429 | 4647.5 | 68.4 | 22.8 | 8600 | Click here |
| world.pdb | PocketAPRS | 20480 | 5317.0 | 48.8 | 50.5 | 20985 | Click here |