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TABLE 2-1 POSITION FIX INDICATOR
Value Description
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
GSA－
－－
－GNSS DOP and Active Satellites
Table 3 contains the values of the following example：
$GPGSA, A, 3, 07, 02, 26, 27, 09, 04, 15, , , , , , 1.8,1.0,1.5*33
TABLE 3 GSA DATA FORMAT
Name Example Units Description
Message ID $GPGSA GSA protocol header
Mode 1 A See Table 3-2
Mode 2 3 See Table 3-1
Satellite Used
1
07 Sv on Channel 1
Satellite Used
1
02 Sv on Channel 2
…. ….
Satellite Used
1
Sv on Channel 12
PDOP 1.8 Position Dilution of Precision
HDOP 1.0 Horizontal Dilution of Precision
VDOP 1.5 Vertical Dilution of Precision
Checksum *33
＜CR＞＜LF＞
End of message termination