Attachment 2-Cnmea0183 Output Sentence Data Format - JRC JLR-7700MKII Instruction Manual

JLR-7700 MK 2 GPS Navigator
Attachment 2-C NMEA0183 Output Sentence Data Format
Caution
1. The sentences may not always be output in the order stated below. Therefore, it is necessary to adopt a
method that can ensure its positive retrieval regardless of its order if it is to be received.
2. It is necessary to adopt a method that can ensure retrieval of data with variable length since the length of
each sentence is variable.
1. Output sentences
RMC : Minimam specific GPS data
RMB : Minimam navigation information
APB : Autopilot sentence B
BWC : Bearing and distance to waypoint
GLL : Geographic position latitude/longitude
GGA : GPS fix data
VTG : Course over ground and ground speed
XTE : Cross-track error, measured
ZDA : Time and date
DTM : Datum reference
2. Output timing
GGA/RMB/RMC
GLL/VTG/APB/BWC/XTE/ZDA : Every four seconds
RMC/GGA/GLL/VTG/ZDA/DTM :
3. Serial format
Baud rate : 4,800 bps
Data bit : 8 bits
Parity : None
Start bit : 1 bit
Stop bit : 1 bit
4. Data format
<Version 1.5>
RMC sentence
$GPRMC,hhmmss,A,llll.ll,a,yyyyy.yy,a,xx.x,xxx,ddmmyy,xx,a*hh<CR><LF>
1 2 3 4
1 :
2 :
3 and 4 :
5 and 6 :
7 :
8 :
9 :
10 and 11 :
12 :
88
: Every two seconds
Every one seconds
5 6 7 8
UTC time (hour, minute, and second)
Status, A = Valid, V = Invalid
Latitude (degree and minute), N/S
Longitude (degree and minute), E/W
Speed (knot)
True course (degree)
UTC (day, month, and year)
Magnetic variation value, E/W
Checksum
9 101112