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An introduction to D-Star

Club lecture program item. Presented by Jules (G0NZO)

Written by: G0NZO ( Jules Smith ) Tuesday, 25 January 2011

Sunday 16th January 2011


Jules (G0NZO) presented an overview of D-Star.

This covered the basic principals of the digital transmissions, frequencies, data rates and bandwidth. Off-air spectrum plots were used and the members heard a live demonstration of what the digital transmissions would sound like, when received on analogue receivers.

Digital Data modes were discussed, but the talk was mainly centered on Digital Voice.

The talk highlighted the advantages of embedding callsign and routing data with the digital stream. And the benefits of automatic traffic routing were discussed.

Live demonstrations of a voice QSO were made via the GB7MM repeater, with the help of Dave (G1SPQ). Members were able to hear both sides of the QSO and experience the audio quality and processing delays that occur.

An overview of the currently available equipment was also given.

the evening was rounded off with a Q&A session, where there was lively discussion of the possibilities for more development and what the future may hold for this mode.




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