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Verifying Setup
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61
X63/X63i/X62/X33/X32InstallationandCalibrationManual P/N:70100697
3. Toavoidrotationalerrors,adjustthe3DMCvaluesoftheAuxAntenna
tomatchthoseoftheMainAntennainthesamedirection.
ApositiveadjustmentmadefortheMainAntennashouldbesubtracted
fromthe3DMCvaluesoftheAuxAntenna(thedistanceawayfromthe
centerlinedecreases).
AnegativeadjustmentmadefortheMainAntennashouldbeaddedto
the3DMCvaluesoftheAuxAntenna(thedistancefromthecenterline
increases.
4. RepeatallstepsofMethodBtoverifythecorrection.
Verifying Main Antenna Height
Thedistancefromthemainantennatotheboompivotaffectstheoverallelevation3DMCcalculatesfor
thebucket.Ifthereisanoverallbias,themainantennaheightcanbeadjusted.
Recordseveral3DMCbucketelevationsandcorrespondingsurveyroverelevations.Subtractthe
elevationsandfindtheaverage.
Donotphysicallyadjusttheantennaheight.
Ifthereportedaverageelevationsof3DMCarehigherthanasurveyrover,increasetheantenna
heightvaluein3DMC.
Ifthereportedaverageelevationsof3DMCarelowerthanasurveyrover,decreasetheantenna
heightvaluein3DMC(Figure75).
Figure75:AdjustMainAntennaHeight
Table9.ExampleCalculationswithoutaSurveyRover
Measurement Symbol Value Adjustment
HubEasting(FacingN) EastingN520.35
HubEasting(FacingS) EastingS520.41
[(520.41520.35)/2]=0.03
Table10.MeasureLocationsandDetermineDifference
Elevations 3DMC Rover Difference
Location1101.10 101.17 0.07
Location2 120.30 120.36 0.06
Location399.50 99.58 0.08
Location4114.20 114.26 0.06
Average 0.07
N
Extended
0.06
Curled In
Curled In
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