Nortek Signature VM Operation Manual

Nortek Signature VM Operation Manual Manual pdf 43 page image

43Cell Position Distance from sensor to centreof the cell[m]dd.ddVelocity East [m/s] dd.dddVelocity North [m/s] dd.dddVelocity Up [m/s] dd.dddAmplitude Beam 1 [dB] ddd.dAmplitude Beam 2 [dB] ddd.dAmplitude Beam 3 [dB] ddd.dAmplitude Beam 4 [dB] ddd.dCorrelation Beam 1 [%] ddCorrelation Beam 2 [%] ddCorrelation Beam 3 [%] ddCorrelation Beam 4 [%] ddExample (DF101, 4 beams)$PNORC1,083013,132455,3,11.0,0.332,0.332,0.332,0.332,78,78.9,78.9,78.9,78,76,72,76*467.1.8 $PNORBT4 – Speed over ground and depthField Description DataFormatDT1 Time from trigger to bottomecho (NOT USED)d.dddDT2 NOT USED d.dddSpeed Over Ground [m/s] d.dddDirection [degrees true North]] d.dFigure Of Merit # dd.dddddDistance to Bottom [m] dd.dExample:$PNORBT4,0,0,1.234,23.4,12.34567,12.3*097.1.9 $VDVDR – Current Speed and DirectionThe VDR sentence contains the corrected current speed and direction. These are the same values as shown as currentsticks in the Track plot, i.e. averaged over time and profile.Field Description DataFormatDirection [degrees true North] ddd.d“T” Marker for True North TDirection Magnetic “M” Marker for Magnetic heading MSpeed Current Speed in knots dd.dd“N” Marker for Knots N