Справочник Пользователя для RoyalTek meb-1000
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