
upright|thumb|ICOM IC-91AD handheld transceiver with the D-STAR UT-121 digital voice board installed
upright|thumb|ICOM IC-91AD handheld transceiver with the D-STAR UT-121 digital voice board installed
D-STAR (Digital Smart Technologies for Amateur Radio) is a digital voice and data protocol specification for amateur radio. The system was developed in the late 1990s by the Japan Amateur Radio League and uses minimum-shift keying in its packet-based standard. There are other digital modes that have been adapted for use by amateurs, but D-STAR was the first that was designed specifically for amateur radio.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).