When you are collecting data you might also keep in mind conditions vary a lot according to the current satellite constellation. You should include the count of satellites in view and the pdop number with your results data.
You can do some planning to make sure you don't run one test when conditions are good and then another tomorrow when conditions are bad by using mission planning software. See my comments here: http://wildsong.biz/index.php?title=GPS_mission_planning_software including a link to a Windows program that is available from Trimble for free. (If anyone knows of an open source planning program do let me know!) Brian _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community