Radio Communications

Online Tools

This is a comprehensive repeater database compiled by the amateur radio community.
Search the site and find repeaters in your area. Update them, comment on them, and recommend them.

CHIRP is a free, open-source tool for programming your radio. It supports a large number of manufacturers and models, as well as provides a way to interface with multiple data sources and formats.

Recourses

The best-selling book on improvised communications using the most common radio in the world. Includes topics on:

Programming the Baofeng without a computer

Communications Planning and Operations

Improvised Antennas

Digital Operations

Encryption and Communications Security