?? nmea.txt
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// ftp://sundae.triumf.ca/pub/peter/index.html
// 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
//
// RMC - Recommended minimum specific GPS/Transit data
// RMC,225446,A,4916.45,N,12311.12,W,000.5,054.7,191194,020.3,E*68
// 225446 Time of fix 22:54:46 UTC
// A Navigation receiver warning A = OK, V = warning
// 4916.45,N Latitude 49 deg. 16.45 min North
// 12311.12,W Longitude 123 deg. 11.12 min West
// 000.5 Speed over ground, Knots
// 054.7 Course Made Good, True
// 191194 Date of fix 19 November 1994
// 020.3,E Magnetic variation 20.3 deg East
// *68 mandatory checksum
//
// Checksumme ist das exclusiv Oder aller Zeichen zwischen '$' und '*'
// inklusive aller Trennkomma's.
// Die Zeichen '$' und '*' sind nicht in der Checksumme enthalten.
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