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GPS Receiver NMEA protocol
RMC
12
1 2 3 4 5 6 7 8 9 10 11 |
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$--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,xxxx,x.x,a*hh<CR><LF>
Field Number:
1) UTC Time
2) Status, V = Navigation receiver warning
3) Latitude
4) N or S
5) Longitude
6) E or W
7) Speed over ground, knots
8) Track made good, degrees true
9) Date, ddmmyy
10) Magnetic Variation, degrees
11) E or W
12) Checksum
(Source: www.nmea.de, here required words are underlined)
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Please Klick here for a spreadsheet xls summary file displaying Analemma, 2nd axis Yearwheel and Declination data (please xcheck). Recurring Analemma yearly cycling (~4yrs) deviations are negligeable.
Analemma/Equation of Time, apply as stated to UTC to receive global “True Solar Time”, (source: Internet)
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