Communications
How to Create Writing, Paper, and the Printing Press From Scratch
How to make paper, ink, and a printing press from scratch in a post-modern world.
Introduction to Packet Radio
With Packet Radio you can use a laptop /tablet/smartphone in conjunction with a Terminal Node Controller and a Radio to send messages and files via radio waves.
goTenna Mesh Teardown
See inside the guts of a goTenna Mesh. What components it's made of, and how it works.
How To Communicate When the Grid Goes Down
Relying solely on your cellphone to communicate with your friends, neighbors, and family during an emergency is dangerous. Have a backup system! We explain some options in this article.
Demonstrating Ultra-Portable Amateur Digital Stations
Very often I’m asked about ultra-portable amateur digital comms. So I thought right now would be an excellent time to kick off the ultra portable digital comms series.
Best Disaster Preparedness Apps
Nowadays nearly all of us have the ability to carry an entire libraries worth of information around with us in our pockets - and receive timely and important emergency information in ways never even dreamed of less that 20 years ago.
Basic Emergency Communications
Looking for simple advice about basic emergency communication preparedness items? We'll give you an easy-to-understand list of the items you should consider.
What is Radio Propagation: RF Propagation
What is radio propagation? discover how the sun, solar flares, as well as sun spots, can make long-distance communication possible or impossible.