ACR Electronics Nauticast Y1-03-0212 - Manual (Page 24)

Installation Manual 20 Y1-03-0212 Rev. E
3.8.5 Priority Handling of Sensor Sentence
This table shows the priority handling of NMEA sentences. The sentences which are treated
with higher priority are listed first.
Positioning System
Source Priority
HIGH
Time of Position
Latitude/Longitude GNS
Position accuracy GLL
GGA
RMC
Rate of Turn(ROT) ROT
Reference Datum DTM
Speed over Ground VBW
VTG
OSD
RMC
Heading HDT
OSD
RAIM Indicator GBS
LOW
3.8.6 Supported NMEA-0183 Sentences
DTM - Reference
1 2 3 4 5 6 7 8 9
| | | | | | | | |
$--DTM,ccc,a,x.x,a,x.x,a,x.x,ccc*hh
Field Numbers:
1) Local datum code (W84,W72,S85,P90,999-user defined, IHO datum code)
2) Local datum subdivision code
3) latitude offset, minutes
4) N or S (North or South)
5) longitude offset, minutes
6) E or W (East or West)
7) altitude offset, meters
8) Reference datum code ((W84,W72,S85,P90)
9) CRC
Used Fields: 1,8
1: Local datum code
8: Reference datum code
GGA - Positioning System Fix Data
Time, Position and fix related data form GPS receiver.
11
1 2 3 4 5 6 7 8 9 10 | 12 13 14 15
| | | | | | | | | | | | | | |
$--GGA,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh
Field Numbers:
1) UTC
2) Latitude
3) N or S (North or South)
4) Longitude
5) E or W (East or West)