Global Overlay Mapper

When I first got my amateur radio license I remember getting a large map of the world, pinning it up on the wall and sticking pins in all the places I had spoken to. Suspect I'm not the only amateur to have done this... Now days you can do this electronically. I recently came across Windows software Global Overlay Mapper which does this. Export your QSOs from your log keeping program into an ADIF file, then load this into the program to see all your contacts world wide. Here is a plot of all my digital mode contacts. Colours indicate bands. If you move the mouse over a pin it shows the callsign of the station worked.

There are Overlay Maps for more details on each area, eg Australia New Zealand area

You can select other Overlay Maps, eg Indonesia. Handy if chasing different prefixes, provinces, IOTA islands for awards

The Overlay Maps are fixed. Theres also an online map that you can pan and zoom around.

I noticed some of the markers not quite right, some contacts showing in the odd spots... Turns out position data wrong. Looking at the log, see position can be determined by 4 digit, 6 digit grid square, or Lat/Lon.

Some users have entered in the wrong Lat/Lon values, putting them in another country or worse the ocean... need to correct this. Also, my log has a mix of 4 digit grid squares, that I got from FT8 contacts, and 6 digits where I have updated their entry from QRZ. Will need to update a lot of entries to 6 digits if I want to plot these accurately.

Overall a nice program. Its not free, but you can try out for 30 days to see if you like it.