Ralph, Just chatted with a fellow at Lockheed's project Blue Horizon. He said that all of the Garmin hockey pucks (rx+ant) they tested do work above 60kft. The biggest issue is firmware ver. As I found out to my dismay. Not all have the same features. Thanks for the input, Norm n3ykf ---- Ralph Smith <[email protected]> wrote: > The Vienna (Virginia) Wireless Society has had several balloon launches. Our > last, on May 1, 2010 reached 117,877 ft. We use a Garmin GPS-18, which works > at these altitudes. Information on our flights can be found at > <http://www.viennawireless.org/balloon/missions/>, and some pictures from the > latest flight are at <http://www.wherry.com/photos/2010-05-01-balloon-vws8/>. > > Ralph > > On May 30, 2010, at 6:14 PM, <[email protected]> wrote: > > > Björn, > > There are some gps units that work above 60k ft. Some do not. It's a > > question of trial and error. > > http://showcase.netins.net/web/wallio/GPSrcvrsvs60kft.htm > > Do understand about and versus or, though. > > > > Thanks, > > Norm > > ---- [email protected] wrote: > >> The export restricion is really speed & alt above limit. Low speed and > >> high altitude should be no problem. However many vendors have chosen OR > >> instead of AND. > >> > >> http://www.armscontrol.org/documents/mtcr item 11 > >> > >> -- > >> > >> Björn > >> > >> > >>> Mike, > >>> We're launching a weather balloon. Using APRS to track it. The balloon > >>> will easily reach altitudes in excess of 65535 ft. The tracker only > >>> accepts nmea input. > >>> > >>> Most gps units won't work over that number, for obvious reasons. Why > >>> bother to code beyond that number as few people will need it as well as > >>> the export restriction on altitude and speed. > >>> > >>> Sounds crazy, but then again, it's time nuts.. > >>> > >>> Norm McSweyn > >>> > >>> ---- mike cook <[email protected]> wrote: > >>>> I see "high" is a relative term. > >>>> > >>>> em-406a seems to be spec'd for 18000 meters. where are you going? > >>>> > >>>> > >>>> Le 30/05/2010 22:35, [email protected] a écrit : > >>>>> Hi all!! > >>>>> Not all oncores are created the same. I THINK (based on inference)that > >>>> some of the GT+ receivers don't support nmea. Bad luck on my part to > >>>> get those. BTW: M12+t's don't support nmea, either. > >>>>> > >>>>> I queried the gps id from the board, and noted when I tried to send > >>>> @@ci from tac32 that it said supported in ver2 and greater.. Mine is > >>>> ver1. > >>>>> > >>>>> Just my luck. > >>>>> > >>>>> Anyone got a nmea capable (proven) that they'd like to sell. Must be > >>>> capable of high altitude flight. > >>>>> > >>>>> Thanks. > >>>>> Norm n3yfk > >>>>> > >>>>> _______________________________________________ > >>>>> 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. > >>>>> > >>>>> > >>>>> > >>>>> > >>>> > >>>> > >>>> > >>>> > >>>> _______________________________________________ > >>>> 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. > >>> > >>> > >>> _______________________________________________ > >>> 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. > >> > >> > >> > >> _______________________________________________ > >> 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. > > > > > > _______________________________________________ > > 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. > > > _______________________________________________ > 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.
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