Product Manual

Field System Setup
MeasuringAntennaHeight
57
P/N:7010‐1004
Measuring Antenna Height
Thereceivercalculatesthecoordinatesoftheantenna’sphasecenter.Todeterminethecoordinatesofthestationmarker,
specifythefollowing:
• Measuredheightoftheantennaabovethestationmarker
• Methodofmeasuringtheantennaheight
• Modeloftheantenna/receiverused
Anynecessaryantennaphasecenteradjustments,basedontheantennamodel,isautomaticallyapplied.Thisadjustment,when
combinedwithaccuratelymeasuredheightandmeasurementmethods,allowsforcorrectlycomputedreferencemarker
coordinates.
Toaccuratelymeasuretheantennaheight:
1. Measuretheantennaheightabovethecontrolpointormarker,eithertheslantheightortheverticalheight.
YoumayeithermeasuretheverticalheighttotheAntennaReferencePoint(ARP)locatedatthebottomofthe
receiveratthebaseofthemountingthreads,ormeasuretheslantheighttotheSlantHeightMeasurementMark
(SHMM)onthesideofthereceiver.ForARPandSHMMmarkson
thereceiver,seeFigure27.
2. Recordtheantennaheight,pointsname,andstarttimeinthefieldnotes.