On 2013/04/16 09:17, Åke Pettersson <76petters...@telia.com> wrote: > Hello Jiri/Max, > It appears that tracking by GSM is different in different areas, due to the > GSM cover. One way to check this by testing GSM phones in the air. In > Sweden, in urban areas, it seems that the phones can be used up to 500 > m/AGL, in low-density areas it can work at higher altitudes. In mountainous > areas the covering seems to be better. In general, GSM is not reliable for > tracking glider flights as the GSM cover is designed for ground > operations.
True. By the way, SkyLines tracking often works even when the phone (and LiveTrack24) doesn't, because it needs the net only for a small fraction of a second. There is no "handshaking" in our protocol, it's just a single unidirectional datagram. ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Xcsoar-user mailing list Xcsoar-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcsoar-user
