AMSAT is a worldwide group of Amateur Radio Operators who share an active interest in building, launching and then communicating with each other through non-commercial Amateur Radio satellites. AMSAT designs, constructs and successfully launches...

ARRLWeb is the home of the American Radio Relay League, the US national organization of Amateur Radio operators.

CB Radio Forum. Just like this one, but for CB Radio.

Find user guide, instruction manual or owner manual of any brand. Archive all your user guides or instruction manuals for further reference and access.

Shortwave X-Tal set no batteries needed!

Shortwave listening guide

Live police and fire scanner audio feeds from many cities across the U.S. including Los Angeles, Phoenix, Las Vegas, New York, and many others

Amateur radio is the premier high-tech hobby. It's enjoyed by people from all walks of life from around the world.

Allocation of the radio spectrum in the United States - showing use of each frequency.

RadioReference.com is the world's largest scanner frequency and radio communications reference source, with complete conventional frequency assignments, trunked radio system information, frequencies, and talkgroups, FCC License assignments and maps,...

Worldwide shortwave frequency list