
Simrad ITI
12
857-164777 / A
NMEA output from ITI
$IIVTG,,,xxx,M,yy.y,N,,*hh<cr><lf> Vessel c ourse and speed
→ requires input from a nav. Receiver.
VTG represents the Vessel Track over the Ground.
xxx,M is the track bearing, in degrees magnetic.
yy.y,N is the speed in knot s re lative to ground.
$IIZDA,hhmmss.ss,dd,MM,yyyy,xx,xx*hh<cr><lf> Time & Date of ITI
→ equals UTC
±
5 seconds if GPS connected.
hh is t he hours
mm is the minutes
ss.ss is the seconds and parts of seconds
dd is the day’s date
MM is the month
yyyy is the year
xx,xx is the local time zone (hh,mm)positive offseteast ofGreenwich.
@IITPT,xxxx,M,y,P,zzzz.z,M<cr><lf> Trawl Position True vessel
TPT represents the True Trawl Position relative to the vessel.
xxxx,M is the horizontal range in metres to the target (0 - 4000 m ) .
- requires an act ive depth sensor on the trawl or manual set
depth, if not the slant range will be presented.
yyy,P Is the t rue bearing to the target (i.e. relative to north).
(Resolution 1°.)
- requires gyro input for reliable data.
zzzz.z,M is the depth in metres of trawl below the surface (0 - 2000 m).
- requires an act ive depth sensor on the trawl or manual set
depth, if not the depth field will be empty.
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