Trimble R10 - VBS Library status; Datum Offset

TrimbleR10ReceiverWebHelp
 Invalid,highvariance,sourceunknown–Whenstaticseeding,eitherthehorizontalorthe
verticalvarianceoftheseedpositionishigherthantheprecisionthresholdsconfiguredinthe
receiver.
 Invalid,wronglocation–Whenstaticseeding,acheckismadetoverifyifthe
antennaison
thecorrectpointbycomparingtheseedpositionwiththecurrentposition.TheECEFXYZof
thecurrentpositionmustbewithintolerance(5mforSBAS,3mforOmniSTARVBS)ofthe
seedposition;otherwiseitisrejected.
 Invalid,receiverdoesnothavethreshold
–Retrievingtheprecisionthresholdfromthereceiver
failed.Thereisnothresholdvaluetocomparetotheseed'svariance.(Thisshouldnothappen,
becausethereceiverhasdefaultthresholdvalue.)
 Invalid,noseedfound–WhenSeedwithLastKnownPositionisactive,butthereceiverdoes
nothave
theseedpositionfromtheprevioussession.
 Invalid,SBASwithhighvariance–TheSBASpositionishigherthanthereceiver'sprecision
thresholdvalues.
 Invalid,VBSwithhighvariance–TheVBSpositionishigherthanthereceiver'sprecision
thresholdvalues.
 Valid,SBAS–TheSBASposition
isavalidseed.
 Valid,OmniSTARVBS–TheVBSpositionisavalidseed.
 Valid,FixedRTK–TheFixedRTKpositionisavalidseed.
 Valid,LastKnownPos–Thelastknownpositionisavalidseed.
 Valid,UserDefined–Theuser‐defined
knownpositionisavalidseed.
VBSLibrarystatus
InternalLibrary–ThecurrentstatusoftheVBSLibrary.ItcanbeActiveorNotActive.
SubscriptionStart/Expiry–OmniSTARVBSsubscriptionstartandexpirydates.OmniSTARservices
cannotbeusedwithoutavalidOmniSTARsubscriptionfortheappropriateservice.
Formore
informationonthecurrentsubscriptionandhowtosubscribe,gotoOmniSTARSubscription
.
LastKnownPosition
TheWGS‐84geographicalpositionandqualityoftheLastKnownpositionstoredinthereceiver
whenitwaslastturnedoff.
DatumOffset
TheWGS‐84geographicaloffsetbetweentwodatums.Itcanbethedifferencebetweenthesite
datumandanotherdatumsuchasITRF00
(usedbyOmniSTAR)asmeasuredusingtheSCSSite
Controllersoftware,oritcanbeinputmanuallyontheOmniSTAR/Configuration
page.Thisoffset
needstobedefinedbeforeOmniSTARKnownpointinitializations,RTKSeeding,orotherfunctions
involvingdifferentdatumsarecarriedout.