AirNav: Airport Information
Detailed airport information, including all airport and navigational aid communications frequencies.
FCC-WTB Wireless Telecommunications Bureau
Division of the FCC that regulates wireless communications. Contains databases that assist in identifying frequency information.
FlightRadio.com - Aircraft Frequencies
Listing of aviation frequencies, plus links to live air-traffic control feeds.
Live Marine Radio
Discussion of monitoring of Coast Guard and Navy signals. Live audio signals are supplied when available.
Low VHF Scanning
Information on long distance scanner reception from Europe and how it occurs. Hear and identify American signals. With equipment and logging information.
National Radio Data
Nationwide online scanner frequency database. Includes amateur callsign search and Civil Aviation Registry.
PerCon Corp
A developer and publisher of government related databases, specializing in FCC and FAA data. The Spectrum frequency database is designed for the scanning hobby market.
Police Scanner Portal
Find information about police scanners including live police scanner feeds, scanner frequency resources, and scanner audio files.
Radio Scanner Guide
With help for new scanning enthusiasts, including equipment reviews and recommendations, information for beginners, frequency guides, scanning tips and links.
Scanner Dweebs Radio Scanner Webring
Supports and promotes the radio scanning hobby. Includes related links.
Scanner Recorder
Download a switched recorder that can record scanner broadcasts via a PC.
The Monitoring Post
Canadian site featuring WxSat images, International Space Station communications, equipment details and DIY projects for the scanning enthusiast.
Trunking Technologies
Provides information, database, and links for trunking radio scanners.