Yes, the error is almost certainly due to the difference between the true earth surface and the value calculated by the GPS model of the earth surface. The difference is Dallas, Texas is around 26 meters (and John Miles actually does live in a pineapple under the sea, so his altitude is negative ;-)
You should use the value determined by the GPS as the altitude that you enter, not the true altitude. _________________________________________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. http://clk.atdmt.com/GBL/go/196390709/direct/01/ _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.