HA There's an interesting and very technical article in a recent Cross Country magazine by an international comps judge on GPS altitude errors. From memory the error can be as much as +/- 175 metres, a bit too much to be used for airspace violations or record claims.
I've sat in a boat where the GPS altitude was 165' ASL which at the time seemed unlikely. Additionally, most of the manufacturers like Flytec, Brauniger and so on who make low cost GPS, logger, vario, ASI, barograph units have currently not got igc certification because they claim it is too expensive. So we have a situation where to keep a device low-cost, it is not certified but they do function as very good position recorders. DMcD _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
