[aprssig] OT: Yaesu to release digital amateur radio gear
Amateur Radio WB8NUT duffy at wb8nut.comTue Jan 10 11:38:14 UTC 2012
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Seems you are the first person to offer that explanation. Please provide a source to back-up that statement as nothing I have read in the past shows it was developed by anyone for any reason other than amateur radio. As for D-Star being developed specifically for amateur radio, from Wikipedia: >>> *D-STAR*(*Digital Smart Technologies for Amateur Radio*) is a digital voice and data protocol specification developed as the result of research by theJapan Amateur Radio League <http://en.wikipedia.org/wiki/Japan_Amateur_Radio_League>to investigate digital technologies foramateur radio <http://en.wikipedia.org/wiki/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 andpacket <http://en.wikipedia.org/wiki/Packet_%28information_technology%29>-based standards to be widely deployed and sold by a major radio manufacturer that is designed specifically for amateur service use.<<< Duffy www.wb8nut.com On 1/9/12 6:24 PM, Stephen H. Smith wrote: > Actually it was developed by a consortium of Japanese radio mfrs as a > potential digital radio protocol for commercial land mobile somewhat > similar to DMR, and was then offered royalty-free to JARL for ham use > to essentially "beta test" the system under real-world conditions. > > > One huge advantage of DMR is that you can achieve 4800 BPS data > transfer in a 12.5 KHz channel or 9600 BPS in a classic 25 KHz channel > (two 12.5KHz DMR channels bonded) for non-voice uses, even on VHF or UHF. > > > > > _______________________________________________ > aprssig mailing list > aprssig at tapr.org > https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.tapr.org/pipermail/aprssig/attachments/20120110/b18d3f6a/attachment.htm>
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