After getting the gps running in the she ... / 2014-02-18

2014-02-18 After getting the gps running in the she ... 6 years ago
After getting the gps running in the shed I noticed a bit of variation in the output location as logged from the NMEA $GPGGA strings in the clockstats file. And reading Tom van Baak testing the MG1613S GPS Receiver noting the variation in location made me decide to do a bit of plotting of location on my own. As Tom notes, plotting distance in meters gives a better idea of scale. So I wrote a bit of perl to massage the lat/long pairs into X/Y meters from a starting point. I was lazy: I used the first measurement as starting point. The resulting X/Y pairs are graphed using gnuplot.

Update: I'm a security specialist, not a programmer: I found some errors in the routines that convert output from the GPS to degrees to meters. Fixed them, so the first graph has been redrawn using data from 17 and 18 Februari.

Tags: , ,

, reachable as PGP encrypted e-mail preferred.

PGP key 5BA9 368B E6F3 34E4 local copy PGP key 5BA9 368B E6F3 34E4 via keyservers pgp key statistics for 0x5BA9368BE6F334E4 Koos van den Hout
Other webprojects: Camp Wireless, wireless Internet access at campsites, The Virtual Bookcase, book reviews
This page generated in 0.004294 seconds.