This is more of a general APRS app development question, but I'd like to know how xastir handles it, too.
If you want what I think of as a "full" position report - with lat/lon, altitude, course and speed - you need two NMEA sentences (GPGGA and GPRMC). Seems to me the easy way to do this would be to watch the timestamp, and when you get a newer timestamp, create the position report from the most recent GGA/RMC sentences (assuming the time matches on the two). This would be more than good enough for a typical APRS setup, but if I'm running at higher speeds (1Hz rate), it puts me almost a full second behind (assuming I wait and validate the "new" sentence by verifying the checksum). This is probably not such a big deal (looks a little silly to worry about now that I write it down...) Anyway, I was just wondering if there was a generally accepted way of dealing with this, or am i thinking too hard again? -Jason kg4wsv _______________________________________________ Xastir mailing list [email protected] http://lists.xastir.org/cgi-bin/mailman/listinfo/xastir
