
Instruction manual
13
857-164777 / A
@IITPC,x,M,y,M,z,M<cr><lf>Trawl Position in Cartesian co-ordinates
TPC represents the Trawl Position in Cartesian co-ordinates.
x,M is thehorizontal distancein metresfrom vesselcentre line.Value
is positive if trawl is on starboard side, negative if on port side.
- requires an act ive depth sensor on the trawl or manual set
depth, if not the slant range will be presented.
y,M is the horizontal distance in met r es from the transducer t o the
trawl along the vessel’s centre line. The value will normally be
positive as the trawl is usually behind the vessel.
- requires an act ive depth sensor on the trawl or manual set
depth, if not the slant range will be presented.
z,M is the depth of the trawl in metres below the surface. the value is
normally positive.
- requires an act ive depth sensor on the trawl or manual set
depth, if not the depth field will be empty.
$IIGLL,ddmm.hhh,N,dddmm.hhh,W,hhmmss.ss,A*hh<cr><lf>
Trawl Position in Latitude and Longitude
GLL represent s the trawls Geographica l Latitude and Longitude.
- requires GLL input from a nav. Receiver.
ddmm.hhh,N is the Latitude, Deg.Min.Hundredths, N=North, S=South.
dddmm.hhh,W is the longit ude, Deg.Min.Hundredths, W=West, E=East.
hhmmss.ss UTC of position (time stamp, fraction of seconds void).
- requires ZDA input from GPS for accurate timestamp.
A valid
- never invalid, terminates output after one minute without
GLL input from a nav. Receiver.
$IIDBS,,,xxxx.x,M,,*hh<cr><lf>Depth of tr awl Below Surface
DBS represents Depth of the trawl Below the Surface.
xxxx.x,M is the depth in me tres (0 - 2000). The fields for depth in feet and
fathoms are empty.
- requires an act ive depth sensor on the trawl.
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