Hi Alan, > > I ask, how far are we in being able to completely replace the firmware > in the lowly MD-380 and clone radios? Or, could we beef up the power in > the 7021, already used in the project!!!!!! > That (as in running Codec2 2400A) will never happen for technical reasons.
Using an SDR it's possible to have Codec2, C4FM, D-Star, DMR and whatever else on a single device. There exist handheld full SDR terminals with a price point of $800-$1000, capable of running almost everything you want up to high speed video. Documentation is close to zero, writing software for them would cost in the high 6 digits figures (not going to happen soon). Said terminals will go EOL in 4-5 years as public services transition to LTE. If you want to try some of the new digital modes without spending a fortune in equipment and DSP training, I suggest to invest some time in learning GNU radio. It's the only viable alternative. I managed to make for myself 4 types of Codec2 VHF modems using it. BPSK, QPSK, 2FSK and 4FSK. Enough to play with for a while. OP25 (a GNU radio project) has had P25, C4FM, D-Star and DMR for a while now. Combining them into a single, easy to use application is just a matter of time. Cheers, Adrian ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
