If you have Google earth installed on your computer
you can see were the hams are
Proceed as this :
Launch Google
Go in the menu "Add"
Choose 'Network link"
In the box named "Link" enter
http://on4kde.be/xfiles/radioamateurs.kmz
the points should appear on the maps.
That's not necessary to save the file since points are very often updated
It's better to link with our database as described here above.