Winlink lets you easily send/receive email from anywhere on the face of the Earth with your HF radio. This is a key component of disaster preparedness for hams who will step up and provide communications for others in a time of need. (The impending Zombie Apocalypse is reason enough to learn this, people.)
In the first 7 minutes, I give you the background information on Winlink… what it is, why it’s important, and how it works. Then, I fire up the computer and a QRP radio (naturally!) to do a demo of sending and receiving email.