DX Atlas - en datoriserad karta med massor av information:

Electronic World atlas for Radio Amateurs. Scrollable World map with smooth zoom, DXCC territories, province/state prefixes, Grid Squares, CQ and ITU Zones in the rectangular, azimuthal and Globe projections, 3D relief, Gray Line, city and island index, unique hierarchical prefix database, local time with DST for all cities, islands and call areas, unique ionospheric maps.

Integrates with HamCAP, IonoProbe, Band Master, and many 3-rd party programs.

Du hittar den och mycket annat här.