I've had that query before too, but in that case it turned out to be that by default some receivers/software report Mean Sea Level and others Height Above Ellipsoid, or both.
Angus. On Wed, 8 Jun 2016 20:33:58 +0000, you wrote: > >I have just installed a Thunderbolt here to get our time and frequency >equipment all on the same page. >As I was looking at the display on Lady Heather, I was noticing that the GPS >altitude seems rather wrong. >We are in Boulder CO, which is nominally 5430' and the antenna is about 20' >off the ground. >The display (near overdetermined position) reads 1589.72991 meters or 5216 and >change in feet. >Altitude is a big deal around here. :) > >I suppose 214' isn't that outrageous, but it does bring me to a question: > >How accurate is the altitude number really? > >Thanks. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
