D-STAR (Digital Smart Technologies for Amateur Radio) is a digital voice and data protocol specification developed as the result of research by the Japan Amateur Radio League to investigate digital technologies for amateur radio. While there are other digital on-air technologies being used by amateurs that have come from other services, D-Star is one of the first on-air and packet-based standards to be widely deployed and sold by a major radio manufacturer that is designed specifically for amateur service use.
Other non-digital voice modes such as amplitude modulation, frequency modulation, and single sideband have been widely used since the first half of the 20th century. By comparison, digital D-STAR signals offer clearer signals and use less bandwidth than their non-digital counterparts. As long as the signal strength is above a minimum threshold, and no multi-path is occurring, the quality of the data received is better than an analog signal at the same strength.
D-Star compatible radios are available on VHF, UHF, and microwave amateur radio bands. In addition to the over-the-air protocol, D-Star also provides specifications for network connectivity, enabling D-Star radios to be connected to the Internet or other networks and provisions for routing data streams of voice or packet data via amateur radio callsigns.
D-Star General information
by NJ6N (D-STAR Usage Monitor)
VIS ON / VIS OFF
SOARA D-STAR Page
South Orange Amateur Radio Organization
K6SOA (SOARA) Repeater System Status
WA6IRC D-STAR Page
Independent Radio Club
D-STAR Technical Specifications
Nifty E-Z Guide to D-STAR Operation $13.95
A communications Tool for D-STAR
Enabling GPS Position Reporting through D-STAR
A web-based text messaging application
DStarMonitor User's Guide
Chat Software for D-STAR
D-STAR on Wikipedia
D-STAR QSO Party Rules (2011)