RoyalTek MEB-1000 - Manual (Page 20)

16
MEB-1000 User Manual
Units M meters
Age of Diff. Corr. second Null fields when DGPS is not
used
Diff. Ref. Station ID 0000
Checksum *18
＜ CR＞＜LF＞ End of message termination
Table 2-3 Position Fix Indicators
Value Description
0 Fix not available or invalid
1 GPS SPS Mode, fix valid
2 Differential GPS, SPS Mode, fix valid
3-5 Not Supported GPS PPS Mode, fix valid
6 Dead Reckoning Mode, fix valid
GSA-GNSS DOP and Active Satellites
Below table 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 2-4 GSA Data Format
Name Example Units Description
Message ID $GPGSA GSA protocol header
Mode 1 A See Table 4-2
Mode 2 3 See Table 4-1
Satellite Used 07 Sv on Channel 1
Satellite Used 02 Sv on Channel 2
…. ….
Satellite Used 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
Table 2-5 Mode 1
Value Description
1 Fix not available
2 2D