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Trimble Outdoors AgGPS 252 AgGPS 252 Receiver User Guide 9, Overview 2, Table 2.3 LED sequences with OmniSTAR HP positioning, Table 2.2 LED sequences with RTK positioning (continued)

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AgGPS 252 Receiver User Guide 9

Overview 2

2.5 GPS Positioning Methods

GPS positioning systems are used in different ways to provide different levels of accuracy. Accuracy is measured in absolute terms (you know exactly where you are in a fixed reference frame).

Yellow Solid Receiving CMR corrections but unable to calculate RTK position:

computing DGPS (if WAAS/EGNOS is unavailable) or autonomous

position

Yellow Slow No CMR corrections: computing DGPS or autonomous position

Yellow Fast Not receiving CMR corrections: not computing positions

Table 2.3 LED sequences with OmniSTAR HP positioning

LED color LED flash Status

Off Off No power

Green Solid Normal operation: computing converged OmniSTAR HP positions

Green Slow Receiving OmniSTAR HP corrections, but only able to compute

unconverged position

Green Fast Receiving OmniSTAR HP corrections, but an HP error occurred

Yellow Solid Receiving OmniSTAR HP corrections but unable to calculate a

position: computing DGPS or autonomous solution

Yellow Slow No OmniSTAR HP corrections: computing DGPS or autonomous

position

Yellow Fast Not tracking OmniSTAR HP corrections: no positions

Table 2.2 LED sequences with RTK positioning (continued)

LED color LED flash Status

Ag252_100B_UserGuide_ENG.book Page 9 Thursday, July 28, 2005 4:06 PM

Contents

Main trimble_support@trimble.com www.trimble.com C Recycling in Europe Page Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . .1 2 Overview . . . . . . . . . . . . . . . . . . . . . . . . .3 3 Installing the Receiver. . . . . . . . . . . . . . . . . 17 Page Introduction C Overview Page Page Page Page 2 Overview 8 AgGPS 252 Receiver User Guide Note WAAS/EGNOS and OmniSTAR VBS use the Satellite Differential GPS positioning method. Table 2.1 LED sequences with Satellite Differential GPS or Autonomous positioning Table 2.2 LED sequences with RTK positioning AgGPS 252 Receiver User Guide 9 Overview 2 Table 2.3 LED sequences with OmniSTAR HP positioning Table 2.2 LED sequences with RTK positioning (continued) Page Page Page AgGPS 252 Receiver User Guide 13 Overview 2 Table 2.5 Factors that influence the accuracy of GPS positions 2 Overview 14 AgGPS 252 Receiver User Guide Table 2.5 Factors that influence the accuracy of GPS positions (continued) Page Page Installing the Receiver Page C Page Page Page Page Page AgGPS 252 Receiver User Guide 25 Installing the Receiver 3 Table 3.4 Port B pinout Table 3.3 Port A pinout (continued) Page Configuring the Receiver D/3D 07 DOP03 WAAS 122 04 Page Page Operate in RTK Mode Page AgGPS 252 Receiver User Guide 33 Configuring the Receiver 4 The default port settings are: Table 4.1 Port input settings I RTCM 9600 8N1 0 NMEA 4800 Page Page Troubleshooting 38 AgGPS 252 Receiver User Guide Global Positioning System (GPS) AgGPS 252 Receiver User Guide 39 Troubleshooting 5 40 AgGPS 252 Receiver User Guide Page 42 AgGPS 252 Receiver User Guide Interference AgGPS 252 Receiver User Guide 43 Troubleshooting 5 GPS receiver AgRemote utility FlashLoader 200 upgrade utility Page Page AgGPS 252 Receiver User Guide 47 Ag252_100B_UserGuide_ENG.book Page 47 Thursday, July 28, 2005 4:06 PM START HERE Figure 6.1 Troubleshooting system hardware and power 48 AgGPS 252 Receiver User Guide Ag252_100B_UserGuide_ENG.book Page 48 Thursday, July 28, 2005 4:06 PM R E H AgGPS 252 Receiver User Guide 49 Ag252_100B_UserGuide_ENG.book Page 49 Thursday, July 28, 2005 4:06 PM R E H 50 AgGPS 252 Receiver User Guide Ag252_100B_UserGuide_ENG.book Page 50 Thursday, July 28, 2005 4:06 PM R E H AgGPS 252 Receiver User Guide 51 Ag252_100B_UserGuide_ENG.book Page 51 Thursday, July 28, 2005 4:06 PM START HERE Figure 6.5 Using AgRemote to troubleshoot RTK Page APPENDIX A AgGPS 252 Receiver User Guide 53 Specifications Tabl e A. 1 AgGPS 252 receiver A Specifications TableA.2 lists the performance characteristics of GPS channels. 54 AgGPS 252 Receiver User Guide Table A.2 GPS channels performance Tabl e A. 1 AgGPS 252 receiver (continued) AgGPS 252 Receiver User Guide 55 Receiver Table A.3 L-Band satellite differential correction receiver with OmniSTAR support Table A.2 GPS channels performance (continued) TableA.4 lists the receiver default settings. APPENDIX B AgGPS 252 Receiver User Guide 57 Third-Party Interface Requirements Table B.1 Third-party software interface requirements B Third-Party Interface Requirements TableB.2 lists the interface requirements for connecting an AgGPS receiver to third-party hardware. Table B.2 Third-party h ardware interface require ments Table B.1 Third-party software interface requirements (continued) AgGPS 252 Receiver User Guide 59 Third-Party Interface Requirements B Table B.2 Third-party hardware interface requirements (continued) B Third-Party Interface Requirements 60 AgGPS 252 Receiver User Guide Table B.2 Third-party hardware interface requirements (continued) Index Numerics A B C D E F G H I J L M P R S T U V W Y