Case IH AFS Pro 700 - PRECISION FARMING APPLICATION: GPS RECEIVER SETUP

3-SETUP
"PRECISIONFARMING"APPLICATION:GPSRECEIVERSETUP
Introduction
Thischaptercontinuesinformationonthe“PrecisionFarming”applicationandexplainsthe“GPSSetup”screen(Home
>Toolbox>GPS).
YourGPSreceiversupportsavarietyofsignalcorrectiontechnologies.Thetwoprimarymeasuresofaccuracyare:
•
Pass-to-passaccuracy-Pass-to-passaccuracymeasurestherelativeaccuracyoveranintervalof15min.For
example,pass-to-passaccuracyof+/-10.2cm(4.0in)meansthat95%ofthetimetherewillbelessthan10.2cm
(4.0in)ofskiporoverlapfromoneeldpasstothenext.
•
Year-to-yearaccuracy-Year-to-yearaccuracyisthemeasureofrepeatableaccuracyaday,aweek,amonth,or
evenayearlater.Forexample,year-to-yearaccuracyof+/-2.5cm(1.0in)meansthat95%ofthetimearowthat
youdrivenextyearwillbewithin2.5cm(1.0in)ofthesamerowthisyear.
Thefollowingtablesdescribeeachsignalcorrectiontechnologyintermsofaccuracy,rangingfrombroadaccuracyto
highaccuracy.ContactyourCASEIHdealertodeterminewhichtechnologyisbestforyouroperatingconditions.
AccuracyTechnologyPass-to-pass
accuracy
Year-to-year
accuracy
Convergence
time
Description
WAAS/EGNOS
15.2-20.3cm
(6.0-8.0in)
<1.0m
(39.4in)
<1minAvailablewithout
subscription
OmniSTAR®VBS
15.2-20.3cm
(6.0-8.0in)
50.8cm
(20.0in)
<1min
Appropriatefor:
•
operatorswhodesirea
quickstart-uptimeand
don’tneedthehighest
levelofaccuracyor
repeatability
•
Broadacrecropspraying,
tillageapplications,and
otherapplicationsinwhich
accuracyandrepeatability
arenotcritical
Broad
RangePoint™RTX™¹
15.2-20.3cm
(6.0-8.0in)
50.8cm
(20.0in)
1-5min
•
Entry-levelcorrection
servicethatisavailable
inregionswhereSatellite
BasedAugementatoni
System(SBAS)correction
optionssuchasEGNOS,
WAAS,andOmniSTAR®
arenotreadilyaccessible
•
Doesnotrequireadditional
receivers,modems,or
dataplans
¹T echnologyrequiresanAFS372GNSSreceiver
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