How to check if a GPS works at 60,000 feet: send up a balloon: The good folks at Duke University sent a uBlox based GPSTCXO up there, and it worked at max balloon altitude which was about 60,000 feet. The ambient temperature must have been around -50C up there, and maybe down to -67C during the ascent, but probably higher inside the electronics box due to insulation and self heating etc: _http://lightningballoon.blogspot.com/_ (http://lightningballoon.blogspot.com/)
Note that this is higher than the older GPS would support, due to the new Wassenaar speed/altitude limits. bye, Said _______________________________________________ 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.
