NavCom Sapphire Rev.J - Manual (Page 321)

Sapphire Technical Reference Manual Rev. J
321
2.69 NMEARMC (ASCII)
SF-3050 Sapphire SF-3040
Supported Output Rate: OFF ONCE OnChange OnTime
OnChange = based on [PROCESSRATE]
OnTime = highest rate licensed
This output message reports minimum recommended GPS information, including position,
velocity, and time information, and is in compliance with NMEA-0183 Standards version 3.0.
The update of Field 12 and the addition of Field 13 comply with NMEA v4.1.
The NMEARMC output can be scheduled to change at a set frequency which reflects any
changes in position, velocity and time. The changed NMEARMC output will automatically be
preceeded by a changed NMEADTM output.
Table 156: RMC Message Output Format
Output
Format:
$GPRMC,time,status,lat,N/S,lon,E/W,speed,course,date,variation,E/W,mode*checksum
Field# Field Name Description
F1 time
UTC time for position fix in hours, minutes, seconds
(hhmmss.ss) (000000.00 to 235959.99)
F2 status
Status
V = void (invalid data)
A = active (valid data)
Value set to V for all modes listed in F12 except for A and D
F3 Lat
Latitude in degrees and decimal minutes
(ddmm.mmmmmm) (0000.000000 to 8959.999999)
F4 N/S Direction of latitude (N=north, S=south)
F5 long
Longitude in degrees and decimal minutes
(dddmm.mmmmmm) (00000.000000 to 17959.999999)
F6 E/W Direction of longitude (E=east, W=west)
F7 speed
Speed over ground in knots (the product puts no upper limit
on this value, reporting the actual data, which itself is likely
limited to an extreme upper limit of mach 3 or so)
F8 course Course over ground in degrees true (0 to 359.9)
F9 date Current date in the format ddmmyy
F10 Variation Magnetic variation in degrees (0-359.99)
F11 E/W Direction of variation (E=east, W=west)
F12 mode
Position mode indicator
A = autonomous
D = DGPS
E = Estimated (dead reckoning)
S = Simulator
N = Data not valid
P = Precise (NMEA v4.1 only) (see note 1)