Appendix 2-5
RMC - Recommended minimum specific GNSS data
Version 1.5
$GPRMC, hhmmss,A,ddmm.mm,a,dddmm.mm,a,xxx.x,xxx.,xxxxxx,xx,a*hh<CR><LF>
1
2 3 4 5
6
7
8
9 10 11 12
Version 2.1
$GPRMC, hhmmss,A,ddmm.mmmm,a,dddmm.mmmm,a,xxx.x,xxx.,xxxxxx,xx.,a*hh<CR><LF>
1
2 3
4 5
6
7
8
9
10 11 12
Version 2.3
$GPRMC,hhmmss.ss,A,ddmm.mmmm,a,dddmm.mmmm,a,xxx.x,xxx.x,xxxxxx,xx.,a,x*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13
IEC
$GPRMC,hhmmss.ss,A,ddmm.mmmm,a,dddmm.mmmm,a,xxx.x,xxx.x,xxxxxx,xx.x,a,x*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13
1:
UTC of position fix
(Version 1.5, 2.1)
1:
UTC of position fix (1/100 sec)
(Version 2.3,IEC)
2: Status
A = data valid
V = navigation receiver warning
3, 4: Latitude (deg, min), N / S
5, 6: Longitude (deg, min), E / W
7:
Speed over ground, knots
8:
Course over ground, degrees true
9: Date:
dd/mm/yy
10,11: Magnetic variation value, E/W
12:
Checksum
(Version 1.5, 2.1)
12:
Mode indicator
(Version 2.3,IEC)
A = Autonomous mode
D = Differential mode
N = Data not valid
S = Simulator mode
13: Checksum
(Version
2.3,IEC)
Note
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.
GBS - GNSS satellite fault detection
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:
UTC time of the GGA or GNS fix associated with this sentence
2:
Expected error in latitude (m)
3:
Expected error in longitude (m)
4:
Expected error in altitude (m)
5:
ID number (see Note 1) of most likely failed satellite
GPS: 1-32
SBAS satellites 120 to 138 are represented by 33 to 51.
33 to 64 are reserved for SBAS satellite use.
6:
Probability of missed detection for most likely failed satellite
(0.00000 to 1.00000)
7:
Estimate of bias on most likely failed satellite (m)
8:
Standard deviation of bias estimate (m)
9: Checksum
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