[dstar_development] Yaesu has published Fusion spec

John D. Hays john at hays.org
Thu Apr 3 23:34:39 PDT 2014


It's Yaesu's design for a Digital system to compete with D-STAR.


------------------------------
John D. Hays
K7VE
PO Box 1223, Edmonds, WA 98020-1223
<http://k7ve.org/blog>  <http://twitter.com/#!/john_hays>
<http://www.facebook.com/john.d.hays>


On Thu, Apr 3, 2014 at 11:07 PM, Yaozb <yaozbg at 163.com> wrote:

> Hi everyone, this is a new amateur digital radio standard? This standard
> intends to replace the D-Star standard?
>
>
> At 2014-04-04 13:38:58,"John D. Hays" <john at hays.org> wrote:
>
>
>
> I am not giving any specific recommendations, just providing for the
> technically curious.
>
>
> http://www.yaesu.com/downloadFile.cfm?FileID=8239&FileCatID=263&FileName=Yaesu%5FAmateur%20Radio%20Digital%20Specs%5F1V01%5FEN%2DGB.pdf&FileContentType=application%2Fpdf
>
> Some basic info:
>
> 9600 bps channel in 12.5 kHz channel
> C4FM modulation
> 2 Data/Voice interleave modes with half rate AMBE vocoder
> 1 Data Only Mode
> 1 Enhanced voice mode full rate AMBE vocoder
>
> Half Rate vocoder seems to be the same as used in P25 Phase 2 Half Rate,
> DMR, dPMR, NXDN -- 2450 voice / 1150 FEC  (3600 bps)
>
> Full Rate vocoder is doubled to 7200 bps
>
> Details of protocol in above link.
>
> ------------------------------
> John D. Hays
> K7VE
> PO Box 1223, Edmonds, WA 98020-1223
> <http://k7ve.org/blog>  <http://twitter.com/#!/john_hays> <http://www.facebook.com/john.d.hays>
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