GPSM001 Datasheet, PDF (8/20 Pages) rfsolutions.ltd – OEM GPS Receiver Module

OEM GPS Receiver Module
GPSM001
GLL—Geographic Position - Latitude/Longitude
Description: This message reports latitude and longitude geographic positioning data, as described in Table 4.
Name
Message ID
Latitude
N/S Indicator
Longitude
E/W Indicator
UTC Position
Status
Checksum
<CR><LF>
Example
$GPGLL
3723.2475
N
12158.3416
W
161229.487
A
*2C
Description
GLL protocol header
dd mm.mmmm
N = north or S = south
ddd mm.mmmm
E = east or W = west
hh mm ss.sss
A = data valid or V = data not valid
End of message termination
Table 4. GLL Data Format
Example: The values reported in this example are interpreted as shown in Table 4:
$GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C
GSA—GNSS DOP and Active Satellites
Description: This message reports the satellites used in the navigation solution reported by the GGA message. GSA is
described in Table 5.
Name
Message ID
Mode 1
Mode 2
Satellite Used ¹
Satellite Used ¹
…
Satellite Used ¹
PDOP
HDOP
VDOP
Checksum
<CR><LF>
1 _{Satellite used in solution.}
Example
$GPGSA
A
3
07
02
1.8
1.0
1.5
*33
Description
GSA protocol header
See Table 6
See Table 7
SV on Channel 1
SV on Channel 2
…
SV on Channel N
Position Dilution of Precision
Horizontal Dilution of Precision
Vertical Dilution of Precision
End of message termination
Table 5. GSA Data Format
Value
M
A
Description
Manual – forced to operate in 2D or 3D mode
Automatic – allowed to automatically switch 2D/3D
Table 6. Mode 1
Value
1
2
3
Description
Fix not available
2D
3D
Table 7. Mode 2
Example: The values reported in this example are interpreted as shown in Table 5:
$GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,
1.8,1.0,1.5*33
DS031-2 Jan ‘04
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