| 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 | ||
| mi-lower.mp | APRSdos | 100 | 39.5 | 45.5 | 4.9 | 100 | Click here |
| nexrad/rad_grr.geo | NWSRadar | 500 | 56.3 | 9.8 | 75.1 | 1251 | NEXRAD GRAND RAPIDS,MI |
| nexrad/rad_apx.geo | NWSRadar | 500 | 70.8 | 55.5 | 86.2 | 1917 | NEXRAD GAYLORD,MI |
| usiroads.pdb | PocketAPRS | 500 | 752.0 | 24.6 | 33.6 | 1917 | Click here |
| usa.pdb | PocketAPRS | 500 | 752.0 | 24.6 | 33.6 | 1917 | Click here |
| usa.mp | APRSdos | 1429 | 547.5 | 40.6 | 13.0 | 2846 | Click here |
| world.mp | APRSdos | 6429 | 4519.2 | 66.4 | 24.7 | 8510 | Click here |
| world.pdb | PocketAPRS | 20480 | 5214.5 | 47.5 | 52.9 | 21009 | Click here |