Resources
ARRL
National Association for Amateur RadioQRZ
Callsign DatabaseRepeater Book
Repeater DirectoryEchoLink
Communicate using streaming audio technology for licenses radio stations
HF Propagation and Solar Data
ARRL
National Association for Amateur Radio
QRZ
Callsign Database
Repeater Book
Repeater Directory
EchoLink
Communicate using streaming audio technology for licenses radio stations
HF Propagation and Solar Data