Lantronix G520 G520 User Guide - Page 101

GPRMC Format, Course Over Ground

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10: Services GPRMC Format The $GPRMC message includes time, date, position, course, and speed datea. Example: $GPRMC,120133.0,A,1907.469671,N,07250.544473,E,0.0,0.0,150915,0.3,W,A*1E Parameters MID RMC Parameters MID UTC Time Status(1) Latitude N/S-Indicator Longitude E/W-Indicator Speed Over Ground Course Over Ground Date Magnetic Variation(2) East/West Indicator(2) Mode Checksum Table 10-11 RMC Data Format Description RMC Protocol Header Example - $GPRMC Time in hhmmss.sss Example - 120133.0 A = Data valid V = Data not valid Example - A Time in ddmm.mmmm Example - 1907.469671 N = North or S = South Example - N Longitude in ddmm.mmmm Example - 07250.544473 E = East or W = West Example - E Measured in knots. Example - 0.0 True. Measured in degrees Example - 0.0 Date in ddmmyy Example - 150915 E = East or W = West Measured in degrees Example - 0.3 W = West Example - W Indicates  A - Autonomous  D - DGPS  E - DR  N - Output Data Not Valid  R - Course Position(3) (4) (5)  S - Simulator Example - A *1E G520 Series IoT Cellular Gateway User Guide 101

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10: Services
G520 Series IoT Cellular Gateway User Guide
101
GPRMC Format
The $GPRMC message includes time, date, position, course, and speed datea.
Example: $GPRMC,120133.0,A,1907.469671,N,07250.544473,E,0.0,0.0,150915,0.3,W,A*1E
Table 10-11
RMC Data Format
Parameters
Description
MID RMC Parameters
MID
RMC Protocol Header
Example – $GPRMC
UTC Time
Time in hhmmss.sss
Example – 120133.0
Status
(1)
A = Data valid
V = Data not valid
Example – A
Latitude
Time in ddmm.mmmm
Example – 1907.469671
N/S-Indicator
N = North or S = South
Example – N
Longitude
Longitude in ddmm.mmmm
Example – 07250.544473
E/W-Indicator
E = East or W = West
Example – E
Speed Over Ground
Measured in knots.
Example – 0.0
Course Over Ground
True.
Measured in degrees
Example – 0.0
Date
Date in ddmmyy
Example – 150915
Magnetic Variation
(2)
E = East or W = West
Measured in degrees
Example – 0.3
East/West Indicator
(2)
W = West
Example – W
Mode
Indicates
A –
Autonomous
D –
DGPS
E –
DR
N –
Output Data Not Valid
R –
Course Position
(3) (4) (5)
S –
Simulator
Example
A
Checksum
*1E