[time-nuts] More from the obsolete gps file: oncore nmea

normn3ykf at stny.rr.com normn3ykf at stny.rr.com
Sun May 30 22:14:33 UTC 2010


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 
---- bg at lysator.liu.se 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 <mike.cook at orange.fr> 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, normn3ykf at stny.rr.com 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
> >> >
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> >> >
> >>
> >>
> >>
> >>
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