AP1.2 Configuration of NMEA Ver-3.00 Sentence
AP1-11
1.2.14 RMC - Recommended minimum specific GPS/TRANSIT data
$--RMC , hhmmss.ss , A , llll.lll , a , yyyyy.yy, a , x.x , x.x , xxxxxx , x.x , a , a
1 2 3 4 5 6 7 8 9
*hh<CR><LF>
Contents Data Note
1 UTC of position fix
2 Status
A=Data valid
V=Navigation receiver warning
3 Latitude, N/S
4 Longitude, E/W
5 Speed over ground, knots
6 Course over ground, degrees true
7 Date: dd/mm/yy
8 Magnetic variation, degrees E/W
Recommended minimum
specific GPS/TRANSIT
data
Time, date, position,
course and speed data
provided by a GNSS
navigation receiver.
This sentence is
transmitted at intervals
not exceeding 2-seconds
and is always
accompanied by RMB
when a destination
waypoint is active. RMC
and RMB are the
recommended minimum
data to be provided by a
GNSS receiver. All data
fields must be provided,
null fields uses only
when data is temporarily
unavailable.
9 Mode indicator(see note)
Positioning system Mode indicator:
A = Autonomous mode
D = Differential mode
E = Estimated (dead reckoning) mode
M = Manual input mode
S = Simulator mode
N = Data not valid
The Mode indicator field supplements
the Status field. The Status field shall
be set to V= invalid for all values of
Operating Mode except for
A= Autonomous and D= Differential.
The positioning system Mode
indicator and Status field shall not be
null fields.
1.2.15 RTE - Route
$--RTE , x.x , x.x , a , c—c , c—c , ..... , c—c *hh<CR><LF>
1 2 3 4 5 6 7
Contents Data Note
1
Total number of messages being
transmitted
2 Message number
3 Message mode:
c= complete route, all waypoints
w= working route, first listed
waypoint is “FROM”, second is
“TO” and remaining reset of route
4 Route identifier
5 Waypoint identifier
6 Additional waypoint identifier
Waypoint identifiers, listed
in order with starting
waypoint first, for the
identified route.
7 Waypoint “n” identifier
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