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[aprssig] Garmin GPS35

Stan Coleman [NØYXV] n0yxv at gihams.org
Wed Sep 28 22:35:29 UTC 2005


More than 30 minutes? I parked last night in an open field with a clear view of
the south for over 30 minutes with no luck. Still have to add all the sentences
to the output and then I'll repost the data.



Quoting Andrew Rich <vk4tec at tech-software.net>:

> It seesm to know what date it is
>
> it looks like a GPS aquiring sats
>
> leave it for abit
>
>
> On Wednesday 28 September 2005 22:27, VE7GDH wrote:
> > Stan N0YXV  wrote on Sept 27 2005
> >
> > > Here is an output from one of my sessions.
> > >
> > > $GPGGA,001446,0000.0000,N,00000.0000,W,0,00,,,M,,M,,*48
> > > $GPRMC,001448,V,0000.0000,N,00000.0000,W,000.0,000.0,280905,007.2,W,N*09
> >
> > What is powering the GPS35? Is the supply voltage within spec? I
> > would presume that because it at least outputting NMEA that it isn't
> > a power supply problem, but... ?
> >
> > The nitty-gritty is that your GPS doesn't have a valid position. The "V" in
> > the $GPRMC sentence tells you this. The "00" after the longitude in the
> > $GPGGA sentence tells you that it sees zero satellites. Could the GPS "see
> > the sky" when you captured this data from the GPS? If it could see a
> > substantial portion of the sky, you probably have an internal problem with
> > the GPS... i.e. it could be broken. If it really isn't functional, you
> could
> > use it for a paper weight or take it apart and see if it could be fixed,
> but
> > it would be somewhat unlikely that you would see any visual clues inside.
> > However, if it just isn't working, you don't have anything to lose.
> >
> > I don't know if you would learn more from the $GPGSV sentence, but
> > your GPS35 doesn't seem to be outputting that sentence.
> >
> > I'm sure there are lots of sites that help interpret NMEA sentences, but
> > I did a search and came across this one:
> > http://home.mira.net/~gnb/gps/nmea.html#gpgga
> >
> > 73 es cul - Keith VE7GDH
> > --
> > "I may be lost, but I know exactly where I am!"
> >
> >
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> >
> >
> >
>
> --
> ------------------------------------
> Andrew Rich VK4TEC
> Satellite Ground Station for PCSAT2
> www.tech-software.net
> vk4tec at tech-software.net
>
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