CVS-841/851 Chapter 10
Technical References
Chapter 10 Technical References
10.1 Serial input data
Data format:
NMEA-0183 Ver. 1.5 and 2.0
10.2 Details of input sentences
Name &
Version
Data name
GGA
GPS Position data
Ver.
1.5/2.0
$ - - GGA, , xxxx.xxx, a , xxxxx.xxx, a , x , , , , , , , , *hh <CR><LF>
Sentence Latitude Longitude Checksum
name
N: North E: East This field is not used
S: South W: West
This field is not used
GPS signal quality
Talker devic code
0: Positioning unable
1: GPS positioning
Start of sentence 2: DGPS positioning
3 – 8: Not acceptable
GLL Geographic position
Ver.
1.5/2.0
$ - - GLL, xxxx.xxx, a , xxxxx.xxx, a , , A, a *hh <CR><LF>
Sentence Latitude Longitude Checksum
name
N: North E: East This field is not used
S: South W: West Mode identifier
A: Valid
Talker devic code This field is not used
Start of sentence
GTD Geographical position,Loran-C
Ver.1.5
$ - - GTD, xxxxx.x,xxxxx.x,,,,<CR><LF>
Sentence
LOP(S1) LOP(S2)
name
Talker device code
Start of sentence
NOTE: Checksum is a total sum of EX-ORed data that are put between the $ and asterisk (*) signs.
93132682-01 10-1