6
N/S Indicator
n
N=north or S=south
Longitude
12158.3416
dddmm.mmmm
E/W Indicator
W
E=east or W=west
UTC Position
161229.487
hhmmss.sss
Status
A
A=data valid or V=data not valid
Checksum *2C
<CR><LF>
End of message termination
GSA-GNSS DOP and Active Satellites
Table B-5 contains the values for the following example:
$GPGSA,A,3,07,02,26,27,09,04,15,,,,,,1.8,1.0,1.5*33
Table B-5 GSA Data Format
Table B-6 Mode1
Value
Description
M
Manual-forced to operate in 2D or 3D mode
A
2Dautomatic-allowed to automatically switch 2D/3D
Table B-7 Mode 2
Value
Description
1 Fix
Not
Available
2 2D
3 3D
GSV-GNSS Satellites in View
Tab
le B-8 contains the values for the following example:
$GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71
$GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41
Table B-8 GSV Data Format
Name Example Description
Message ID
$GPGSV
GSV protocol header
Number of Messages
1
2
Range 1 to 3
Message Number
1
1
Range 1 to 3
Satellites in View
07
Name Example
Units Description
Message ID
$GPGSA
GSA protocol header
Mode1 A
See
Table
B-6
Mode2 3
See
Table
B-7
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
