[time-nuts] GPS-18, Windows, NTP & Lat Lon
Sanjeev Gupta
ghane0 at gmail.com
Wed Sep 4 01:23:25 UTC 2013
On Wed, Sep 4, 2013 at 8:35 AM, Jim Lux <jimlux at earthlink.net> wrote:
> I'm looking for an easy way to get current lat lon, when you've got a
> GPS-18 hooked up for NTP. That is, the GPS receiver is there doing it's
> NTP thing, so presumably it knows where it is.
>
>
> If NTP is decoding the GPRMC message, it has the lat/lon in it, so how can
> I get that info out (in a command line utility, into a file, or some such)
>
> I don't need millisecond time accuracy.. For now the GPS is just to make
> sure that the time is "right".
>
>
> The GPGGA sentence would also do.
>
> And, I only need the GPS position once within a 30 second interval (it's
> not moving, I just want to know where it is).
>
I would strongly suggest GPSd. It will open the COM port, to
auto-detection of speed and model of device, and you can use the builtin
utilities to spit out Lat/Lon, Time, number of satellites, etc. A full
screen monitor is available: gpsmon.
GPSd is: http://catb.org/gpsd/
> All of this with Windows 7.
>
This is an old port, but should still work:
- http://code.google.com/p/gpsd-4-win/
- See also:
http://sourceforge.net/apps/mediawiki/travelingsales/index.php?title=Howto/gpsd_on_windows
--
Sanjeev Gupta
+65 98551208 http://www.linkedin.com/in/ghane
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