schrieb Rafael Diniz on 2011-01-08 03:30: > Hi people, > Have anyone successfully built a D-Star transmitter with gnuradio blocks?
For the protocol part, see the archives[1]. IMO D-Star is a thing to make money rather than a system to foster independent communication. There are legal, privacy and free implementation issues. For the codec parth D-Star uses AMBE+ as codec, which is non-free. You can buy codec ICs, but you cannot implement it in Open Source. See the archives again for a discussion. Have a look at "codec2" [2], this should work fine for quite the same requirements: low NF bandwidth, low bitrate, low latency. Regards Patrick [1] http://search.gmane.org/?query=%22d-star%22&author=&group=gmane.comp.gnu.radio.general&sort=relevance&DEFAULTOP=and&xP=d%09star&xFILTERS=Gcomp.gnu.radio.general---A [2] http://www.rowetel.com/blog/codec2.html [3] http://codec2.org/ _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
