Electronic World atlas for Radio Amateurs. 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 dx90_directmusicproducer.exe with DST for all cities, islands and call areas, unique ionospheric maps. Call area boundaries and prefixes are shown on the World map in addition to the DXCC boundaries and prefixes. Each prefix has a hint with a country and province name.

Click on a prefix to find it in the Prefix Database. CQ Zone and ITU Zone boundaries can be switched on and off. Move your mouse over the zone label to see the official definition of the zone. The Maidenhead Locator map displays 2-character and 4-character grid squares.

You can mark worked and confirmed squares and add comments to each square. Rectangular, Azimuthal and Globe projections are available. The Azimuthal map center can be changed with a single mouse click to see how the World looks from a DX location. Zoom in and out, scroll or re-center the map, switch between the projections and turn individual layers on and off with your mouse. Antenna bearing and distance for the point under the mouse cursor are shown on the status bar. Sunrise and sunset time is calculated automatically for the current point and for all gazetteer entries.