Communications

Check out the goTenna Mesh portable messaging tool. Use your phone to send text messages over radio!

How to make paper, ink, and a printing press from scratch in a post-modern world.

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.

See inside the guts of a goTenna Mesh. What components it's made of, and how it works.

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.

Some ultra-portable amateur digital comms which OH8STN uses in the field. Ham radio.

US Dept of Health and Human Services compiled list of the best disaster preparedness apps for your phone.

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? discover how the sun, solar flares, as well as sun spots, can make long-distance communication possible or impossible.