Real-time, interactive APRS (Automatic Packet Reporting System) mapping and more.
AllStarLink is a network of Amateur Radio repeaters, remote base stations and hot spots accessible to each other via Voice over Internet Protocol.
VHF Propagation Map
Interactive map of current VHF propagation conditions
The Southeastern Repeater Association is the amateur radio repeater coordinator for Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee and Virginia.
Worldwide Tropospheric Ducting Forecast
Six day forecast of tropospheric ducting conditions for VHF, UHF and microwave radio and television propagation
Real-time radio propagation lists and information
EchoLink connects licensed amateur radio stations over the Internet using streaming-audio technology.
Internet Radio Linking Project
IRLP is a Voice-over-IP (VoIP) network that endeavors to reliably and inexpensively link amateur radio stations without the use of RF links, leased lines or satellites.
Alaska Morning Net
The Alaska Morning Net is a friendly ragchew net that meets daily on IRLP, EchoLink and AllStar.
North Alabama Repeater Association
NARA is an organization of amateur radio operators who maintain a number of analog and digital repeaters in the Huntsville, Alabama area.
The ARRL is the U.S. national association for amateur radio.