D-STAR Operating Mode: Digital Voice and Data

Learn about D-STAR technology, its features, and how it enhances digital voice and data communication for ham radio operators.

Austin
Reviewed by • Digital Modes & Software Editor March 2026

D-STAR is an open-standard digital radio protocol developed by the Japan Amateur Radio League (JARL) for amateur radio use. It allows hams to transmit digital voice and data, often simultaneously, over the air. This mode extends the capabilities of traditional FM repeaters by enabling features like worldwide linking, text messaging, and GPS position reporting, making it popular for both local and long-distance QSOs.

Operators interested in D-STAR can find resources covering everything from basic introductions and technical documentation to specific tools. Many hams use software like D-RATS for data communication, file transfers, and mapping, while others rely on D-PRS message calculators to configure their radios for GPS reporting. The category also provides access to repeater directories, such as the worldwide jFindU D-STAR map, and video demonstrations from operators like W7NWH, illustrating practical setup and operation.

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