Communications

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.

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.

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.

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.

The sun has a large effect on long-distance radio communication on Earth. Solar flares, as well as sun spots, can make long-distance communication possible . . . or impossible.

By Jonathan Imberi