Trimble R10 - Base Applications; Base station operation guidelines

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BaseApplications
Basestationoperationguidelines
Thistopicintroducestheconceptofbasestationoperation,providesinformationtohelpyou
identifygood setuplocations,describesbestpracticesforsettinguptheequipment,andoutlines
theprecautionsthatyouneedtotaketoprotecttheequipment.
Real‐TimeKinematic(RTK)operationprovidescentimeter‐levelaccuracybyeliminatingerrors
that
arepresentintheGNSSsystem.ForallRTK,LocationRTK,orDGPSoperations,yourequirebotha
roverreceiverandasourceof correctionsfromabasestationornetworkofbasestations.
Abasestationconsistsofareceiverthatisplacedataknown(andfixed)
position.Thereceiver
tracksthesamesatellitesthatarebeingtrackedbytheroverreceiver,atthesametimethatthe
roveristrackingthem.ErrorsintheGNSSsystemaremonitoredatthefixed(andknown)base
station,andaseriesofpositioncorrectionsarecomputed.Themessagesaresent
througharadio
linktotheroverreceiver,wheretheyareusedtocorrecttherealtimepositionsoftherover.
Basestationcomponents
Thebasestationhasthefollowingcomponents:
 GNSSreceiver
 GNSSantenna
 Basestationradio
 Powersupply
GNSSreceiverandGNSSantenna
ThebasestationGNSSreceivercanbeoneoffollowingtypes:
 AnintegratedreceiverthatincorporatesaGNSSreceiver,GNSSantenna,powersupply,and
radio
intoasinglecompactunit.ASmartGPSantennacanberapidlysetuponatripod,fixed
heighttripod,orT‐Baranywherethat isconvenientonthejobsite. 
 AmodularreceiverthatincorporatesaGNSSreceiverandseparateGNSSantenna.TheGNSS
antenna(and,optionally,thebase
stationradioantenna)isseparatefromthereceiver.
BecausetheGNSSantennaisseparate,youcanusethefollowingoptimizedcomponents:
 ageodeticantennawithlargegroundplane,toeliminatemultipath(themajorsource
ofGNSSerrors)atthebasestation
 ahigh‐gainordirectionalradioantenna,to
increasebroadcastrangeandtoprovide
maximumcoverage
Youcanalsoplaceamodularreceiverinaneasilyaccessibleandsecurelocation,safe
fromtheftandtheweather,whiletheantennasareplacedhighonatowerorbuilding,
clearofobstructionsandabletodelivermaximumperformance.