$GPGGA sentence from
http://vancouver-webpages.com/peter/nmeafaq.txt
The NMEA FAQ
Version 6.6  Jan 30, 2008
Peter Bennett  peterbb4@interchange.ubc.ca
GGA - Global Positioning System Fix Data
        GGA,123519,4807.038,N,01131.324,E,1,08,0.9,545.4,M,46.9,M, , *42
           123519       Fix taken at 12:35:19 UTC
           4807.038,N   Latitude 48 deg 07.038' N
           01131.324,E  Longitude 11 deg 31.324' E
           1            Fix quality: 0 = invalid
                                     1 = GPS fix
                                     2 = DGPS fix
           08           Number of satellites being tracked
           0.9          Horizontal dilution of position
           545.4,M      Altitude, Metres, above mean sea level
           46.9,M       Height of geoid (mean sea level) above WGS84
                        ellipsoid
           (empty field) time in seconds since last DGPS update
           (empty field) DGPS station ID number


$GPGGA,123519,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47