RoyalTek RFG-1000 User Manual
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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＞
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