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4.2
Descripción de sentencias
GGA: datos de fijación del sistema de posicionamiento global (GPS)
Hora, posición y datos de fijación de un receptor GPS.
$--GGA,hhmmss.ss,llll.lll,a,yyyyy.yyy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh<CR><LF>
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+------------------------------------------------------------- 1
1. UTC of position
2. Latitude, N/S
3. Longitude, E/W
4. GPS quality indicator (see note)
5. Number of satllite in use,00-12, may be different from the number in view
6. Horizontal dilution of precision
7. Antenna altitude above/below mean sealevel, m
8. Geoidal separation, m
9. Age of differential GPS data
10. Differential reference station ID, 0000-1023
11. Checksum
NOTE
0 = fix not available or invalid
1 = GPS SPS mode, fix valid
2 = differential GPS, SPS mode, fix valid
3 = GPS PPS mode, fix valid
4 = Real Time Kinetic. Satellite system used in RTK mode with fixed integers
5 = Float RTK. Satellite system used in RTK mode with floating fingers
6 = Estimated (dead reckoning) mode
7 = Manual input mode
8 = Simulator mode
The GPS quality indicator shall not be a null field.
Nota: únicamente se usan los elementos indicador de calidad GPS y altitud de antena por
encima o por debajo.
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| | +---------------------------- 5
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| +------------------------------- 4
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+----+--------------------------------- 3
+---+--------------------------------------------- 2
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| +--------- 9
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| +---+------------ 8
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+---+------------------ 7
+------------------------- 6
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+-- 11
+---- 10
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