JRC JLR-20, Instruction Manual

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Appendix 2-4
A : GPS positioning
D : DGPS positioning
N : Not positioning
S : Simulation mode
8: Checksum (Version 2.3)
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RMC (Recommended Minimum Specific GPS/TRANSIT Data)
Version 1.5
$GPRMC, hhmmss,f,ddmm.mm,a,dddmm.mm,a,xxx.x,xxx.,xxxxxx,,*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10
Version 2.1
$GPRMC, hhmmss,f,ddmm.mmmm,a,dddmm.mmmm,a,xxx.x,xxx.,xxxxxx,,*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10
Version 2.3
$GPRMC, hhmmss.ss,f,ddmm.mmmm,a,dddmm.mmmm,a,xxx.x,xxx.x,xxxxxx,,,x*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11
1: UTC time (hours, minutes, seconds)
Measured UTC [1/100 sec] (Version 2.3)
2: Status A= Valid, V= Invalid
3, 4: Latitude (deg, min), N / S
5, 6: Longitude (deg, min), E / W
7: Speed (knots)
8: Course bearing (deg)
9: UTC day, month, year
10: Checksum (Version 1.5, 2.1)
10: Mode Indicator (Version 2.3)
A : GPS positioning
D : DGPS positioning
N : Not positioning
S: Simulation
mode
11: Checksum (Version 2.3)
Note 1. For version 1.5, when not performing positioning, outputs last measured position data.
For version 2.3, when not performing positioning, outputs last measured position data,
date, and time.
For version 2.3, when power is turned on, or master reset is performed, the initial time,
date, and position settings are NULL.
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GBS (GPS satellite fault detection for RAIM)
Version 2.1, 2.3 only
$GPGBS,hhmmss.ss,uxxx.x,uxxx.x,uxxx.x,xx,x.xxxxx,uxxxx.x,xxxx.x*hh<CR><LF>
1 2 3 4 5 6 7 8 9
1: Measured UTC (hr. min. sec. 1/100 sec)
2: Latitude estimated error [m] u: sign
3: Longitude estimated error [m] u: sign
4: Elevation estimated error [m] u: sign
5: Faulty satellite ID GPS: 1-32
SBAS satellites 120 to 138 are represented by 33 to 51.
33 to 64 are reserved for SBAS satellite use.
6: Faulty satellite detection overlook ratio (0.00000 to 1.00000)
7: Estimated bias [m] u: sign
8: Standard bias deviation [m]
9: Checksum