Seatex DPS 200 Installation Manual, rev. 4 Installation
25
GPS satellite no. 3 -- I3 1-32
…
GPS satellite no. N -- I3 1-32
CR/LF -- A2
Table 6 ABBDP message fields
ARABB Message
ARABB is not a NMEA telegram. The ARABB message presents the absolute position of the
vessel and the relative position between the vessel and a target.
The absolute position is presented in UTM co-ordinates with UTM zone. The relative
position, range and bearing are from the antenna point on the vessel to the point defined as the
target point. The message structure is as follows:
$ARABB,aaaaaa.a,nnnnnnnn.nn,eeeeeeee.ee,uu,SSS.S,C,dd,y.yyy,zzzz.z,X,*cc
Within an UTM zone a fixed central meridian is used. When crossing a zone, a different
central meridian will be used and a jump in UTM co-ordinates occurs.
Table 7 describes the ARABB message fields.
Field Description
aaaaaa.a GPS time of position seconds in GPS week.
nnnnnnnn.nn Northing (UTM) in metres.
eeeeeeee.ee Easting (UTM) in metres.
uu UTM zone 1-60.
SSS.S Standard deviation from residuals measurements in metres.
C Status of absolute position: 0 - No fix, 1 - GPS fix, 2 - Differential GPS fix.
dd Number of satellites (0-12).
y.yyy Heading of vessel in radians, 0-6.283, 7.000 when not applicable.
zzzz.z Horizontal distance to point in metres.
X Status of relative data:
0 - Data not valid.
1 - Relative (and absolute) position uncompensated.
2 - Data compensated with slave and master vessel heading.
*cc Computed checksum.
Table 7 ARABB message fields
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