GPS Receiver Module
GLL - LATITUDE AND LONGITUDE, WITH TIME OF POSITION FIX AND STATUS
Latitude and longitude of current position, time, and status.
Format:
$GPGLL,<1>,<2>,<3>,<4>,<5>,<6>,<7>*<8><CR><LF>
Example:
$GPGLL,2447.2073,N,12100.5022,E,104548.04,A,A*65<CR><LF>
GPS-41UMR
GPS-41UMF
Field
1
2
3
4
5
6
7
8
Example
Description
2447.2073 Latitude in ddmm.mmmm format
Leading zeros transmitted
N
Latitude hemisphere indicator, ‘N’ = North, ‘S’ = South
12100.5022 Longitude in dddmm.mmmm format
Leading zeros transmitted
E
Longitude hemisphere indicator, 'E' = East, 'W' = West
104548.04 UTC time in hhmmss.ss format, 000000.00 ~ 235959.99
A
Status, ‘A’ = valid position, ‘V’ = navigation receiver warning
A
Mode indicator
‘N’ = Data invalid
‘A’ = Autonomous
‘D’ = Differential
‘E’ = Estimated
65
Checksum
GSA - GPS DOP AND ACTIVE SATELLITES
GPS receiver operating mode, satellites used for navigation, and DOP values.
Format:
$GPGSA,<1>,<2>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<4>,<5>,<6>*<7><CR><LF>
Example:
$GPGSA,A,3,26,21,,,09,17,,,,,,,10.8,02.1,10.6*07<CR><LF>
Field
Example
Description
1
A
Mode, ‘M’ = Manual, ‘A’ = Automatic
2
3
Fix type, 1 = not available, 2 = 2D fix, 3 = 3D fix
3
26,21,,,09,17,,,,,, PRN number, 01 to 32, of satellite used in solution, up to 12 transmitted
4
10.8
Position dilution of precision, 00.0 to 99.9
5
02.1
Horizontal dilution of precision, 00.0 to 99.9
6
10.6
Vertical dilution of precision, 00.0 to 99.9
7
07
Checksum
DS-41UM-1 Feb ’06
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Tel 01273 898000 Fax 01273 480661
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