I'm always blown away by what can be achieved with 5 Watts of power and a piece of wire in a tree. See the image

13 Characters of text can be sent anywhere in the world (or universe, perhaps)

This is a map of all the receivers that received my 'tweet', logged it and reported it

Someone could build a version of the reporter that allows you to follow callsigns, so you can maintain a feed of transmissions.

12/28/13; 17:09PM

Last built: Wed, Jan 8, 2014 at 2:19 PM

By Adam Curry, Saturday, December 28, 2013 at 5:09 PM.