Winlink: Internet Email over Radio
What if the Internet isn't working, where you are at the moment?
As a Ham, you can send Internet email to anyone else in the world, even non-Hams, over Ham Radio channels, and it's free! And your family and friends can send to you, from wherever they are, as well.
Of course, we have to follow the rules of U.S. Amateur Radio: we cannot conduct business with Winlink emails. And it's not fast. But it works really well, almost anywhere in the world.
Winlink has helped save many Lives and Property; see the "Winlink Was There" articles on the Winlink.org Home Page
Start Learning about Winlink: Winlink.org
Here's a couple Diagrams, showing typical Radio and Computer Equipment needed for Winlink: