Distance and Bearing Finder
- This service uses data from the US Census and a supplementary list of cities around the world to find the latitude and longitude of two places, and then calculates the distance between them. It also provides a map showing the two places, using the Xerox PARC Map Server.
Maidenhead Locator Calculator
- On-line calculator for Maidenhead locator calculations. It will work out your Maidenhead locator if you supply it with map references or calculate map references from your locator code.
Near-Realtime MUF indicatorpop
- This is a highly informative map that can be used by amateur and professional radio communicators to determine maximum usable frequencies for any world-wide path at the indicated UTC (Zulu) time.
- DX Monitor is a standalone Win 95/98/NT program which monitors the DX announcements available on the internet at DX Summit and presents the information in a sortable grid format and on a map centered on your location.