While Chirp is a form of spread spectrum, it is not designed for multiple access. Chirp is also used on most modern radars for pulse compression. You can't have two radars on the same frequency :-)
I tried a couple of LORA modules, and without an antenna they worked swell across the house. I was impressed. But if your goal is multiple access, then direct sequence or frequency hopping is the way to go. That way each group has a different pseudo random sequence. I never understood why the APRS users didn't make use of the GPS timing. It seems obvious that if users were on even seconds, and digipeaters were on odd seconds, that it would be a form of TDMA. Steve/k5okc On Thu, Mar 8, 2018 at 10:57 PM, Leon Lessing <zs6...@gmail.com> wrote: > > This Lora is driving me nuts, ------------------------------------------------------------------------------ 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
