Trimble AgGPS 332 manual

U S E R GU I D E Ag GPS ® 332 GPS Receiver 56370-00_332GPS_reciever_MC_7.25x9_0805.indd 1 15/08/2005 9:28:10 a.m.[...]

www .trimble.com T rimble Navigation Limited Agriculture Business Area 7401 Church Ranch Blvd Westminster , CO 80021 USA +1-913-495-2700 Phone T rimble Navigation Limited Corporate Headquarters 935 Stewart Drive Sunnyvale , CA 94085, USA +1-408-481-8000 Phone T rimble Navigation Limited Agriculture Business Area W ater Management Division 5475 Kell[...]

V ersion 1. 00 Revision A Part number 56370- 00-ENG September 2005  USER GUIDE Ag GPS ® 332 GPS Receiver[...]

Corporate Office T rimble N avig ation Limited 645 North M ary A venue PO Box 3642 Sunnyvale, CA 94085 USA www .trimble.com Legal Notices © 2005, T rimble Naviga tion Limited. All rights reserved.Trim ble, the Globe & T riangle logo, Ag GPS, AutoPilot, and EZ-Guide are tr ademarks of T rimble Na vigation Limited r egistered in the US P atent a[...]

THE FOREGOING LIMITED W ARRANTY TERMS ST A TE TRIMB LE'S ENTIRE LIA BILITY , A ND YOUR EX CLUS IVE REMEDI ES, REL A TING TO PERFORMANCE OF THE TR IMB LE P ROD UCT . EXCE PT AS OTHE R WIS E EXP RES SL Y PROVIDED HEREIN, THE PRODUCT AND ACC OMP ANYI NG DO CUMENT ATION AND MA TERIALS ARE PRO VIDED “ AS-IS” AND WITHOU T EXPRES S OR IMPLIED W A[...]

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Ag GPS 332 GPS Receiver User Guide v Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . 1 W elcom e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 About the Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Related Information . . . . . . . . . . . . .[...]

Contents vi Ag GPS 332 GPS Receiver User Guide Optional compon ents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 M ounting the Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Choosing a lo cation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Environmental conditions . . . . [...]

Contents Ag GPS 332 GPS Receiver User Guide vii OmniST AR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 W AAS/EGNOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Con figur ing t he Ag G PS Rec eiver to Operate in Beac on M ode . . . . . . . . . . 49 Con figur ing t he Ag G PS Rec eiver to [...]

Contents viii Ag GPS 332 GPS Receiver User Guide C NMEA-0183 Messages . . . . . . . . . . . . . . . . . 77 Intr oduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 NMEA-0183 Message Structur e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 S ymbol s and delimiters . . . . . . . . . . . . . . .[...]

CHAPTER 1 Ag GPS 332 GPS Receiver User Guide 1 Intr oduction 1 In this chapter: Q We l c o m e Q About the Pr oduct Q Related Information Q T echnical Assistance Q Y our Comments[...]

1 Introduction 2 Ag GPS 332 GPS Receiver User Guide 1.1 We lcome This manu al de scr ib es h ow to inst all a nd c onf igure th e T rimbl e ® AgGPS ® 332 r eceiver . Even if you have used other Global Positionin g System ( GPS) product s before, T rimble recommends that you spend some tim e reading t his manual to learn about the sp ecial featur [...]

APPENDIX 2 Ag GPS 332 GPS Receiver User Guide 3 Overview 2 In this chapter: Q Introduction Q Receiver Connections Q Receiver Input/Output Q GPS Positioning Methods[...]

2 Overview 4 Ag GPS 332 GPS Receiver User Guide 2.1 Introduction This chapt er de scribe s the Ag G PS 332 receiver and gi ves an overview of GPS, DGPS, and related information . The Ag G PS 332 receiver comb ines high-pe rformance G PS rec e pti on wi th a D GP S- c ap abl e receiver in a light weight, durable housing. The Ag GPS 332 r eceiver als[...]

Ag GPS 332 GPS Receiver User Guide 5 Overview 2 21.1 Standard Features A standard Ag GPS 332 r eceiver provides the following feat ures: • 10 Hz (10 pos itio ns per seco nd) ou tpu t ra te • 12 GPS ( C/A-code, L1and L 2) tracking channels, code carrier ch an nels • Submeter dif ferential accuracy (RMS), assuming at least five satellites and a[...]

2 Overview 6 Ag GPS 332 GPS Receiver User Guide 2.2 Receiver Connections F igure 2.1 shows the c onnector por ts on the Ag G PS 332 recei ver. Figure 2.1 Ag GPS 332 receiver connector ports The two co nnect ors (Port A and Port B) ca n per form th e fol lowin g function s: • accept po wer • accept T SIP , R TCM, AS CII, and (if enabled) C MR in[...]

Ag GPS 332 GPS Receiver User Guide 7 Overview 2 2.3 Receiver Input/Output The Ag G PS 332 receiver data/power cable (P/N 30945) connects to a receiver conne ctor port to supply power . I t als o enables the follow ing data e xchanges: • TSIP , R TC M, and ASC II input from an external device The receiver is abl e to receive ASC II data from an e [...]

2 Overview 8 Ag GPS 332 GPS Receiver User Guide • 1 PPS output T o synchronize timing between external instruments and the internal clock in th e receiver , the c onnection p ort outputs a strobe signal at 1 PPS (p ulse p er second). T o output this signal , the receiver must be tracking satellite s and computing GPS posi tions. • J1939 (CAN) b[...]

Ag GPS 332 GPS Receiver User Guide 9 Overview 2 2.4 GPS Positioning Methods GPS positioning systems are used in dif fer ent ways to provide different level s of accuracy . Accuracy is measured in absolute terms (you know exactly where you ar e in a fixed refer ence frame ). T able 2.1 summarize s the GPS p ositioning method s. Imperial units in thi[...]

2 Overview 10 Ag GPS 332 GPS Receiver User Guide A trans mit ter in the ba se station sends the corrections through a radio link to the rover radio, which sends th e corrections to the Ag GPS 332 receiver. The rover r eceiver uses RTK corrections from t he ba se station to calculate its p osition to centimeter-le vel accuracy . As part of this proc[...]

Ag GPS 332 GPS Receiver User Guide 11 Overview 2 Subscription-based corr ections The Ag G PS 332 r ecei ver uses OmniS T AR XP/HP or OmniS T AR VBS differential corrections in the same way that it uses W A AS/EGNOS corrections but are provided on a subscription basis. The corr ections th at ar e produced b y OmniST AR XP/HP algori thms ar e more ac[...]

2 Overview 12 Ag GPS 332 GPS Receiver User Guide 24.4 Sources of Err or in GPS Positioning The GPS positioning method inf luenc es the accuracy of the GPS p o s i t i o n t h a t i s o u t p u t b y t h e Ag GPS 332 r eceiver. The factors described in T able 2.2 als o affe ct GPS accuracy . T able 2.2 Factors tha t influence the accuracy of GPS pos[...]

Ag GPS 332 GPS Receiver User Guide 13 Overview 2 Minimum elevation > 10 Satellites that are low on the horizo n typically produce weak and noisy signal s and are more difficult for the receiver to track. Satellites below the min imum elevation angle are not tracked. Multipat h environment Low Multipath errors are caused wh en GPS signals are ref[...]

2 Overview 14 Ag GPS 332 GPS Receiver User Guide 24.5 Coordinate systems Geographic data obtaine d from different sour ces must be referenced to the same d atum, ellipsoid , and co ordinate format. Di fferent formats provide d if fer ent coo rdi nate values for an y geogra phic locatio n . In North America, th e datums NAD-27 and NAD-83 are commonl[...]

Ag GPS 332 GPS Receiver User Guide 15 Overview 2 24.6 Satellite DGPS mode status indicators Wh en the receiver is in Satel lite mode, th e second lin e of the Hom e screen displays the status indicators shown in Figure 2.2. Figure 2.2 Satellite DGPS mode status indicators T able 2.4 shows the possible sate llite dif ferential mode indicators. T abl[...]

2 Overview 16 Ag GPS 332 GPS Receiver User Guide 24.7 Receiver input / output The receiver is abl e to output R TC M in base station mod e. W hen you are using an external radio, it can als o receive DGPS corrections. NME A is output wh en the receiver is exporting GP S position information to an externa l device, s uch as a yield m onit or or t o [...]

Ag GPS 332 GPS Receiver User Guide 17 Overview 2 24.9 Receiving Beacon DGPS T o obtain free r adiobeac on differential signals, the Ag G PS 332 receiver uses dual-channel , full y-automatic beacon receiver electronics and tracks broadcas ts that conform to the IAL A (International Association of Li ghth ouse Authorit ie s ) St and ard . W h en y ou[...]

2 Overview 18 Ag GPS 332 GPS Receiver User Guide • Sky wa ve inter ference with ground wave During darkness, w hen the b eacon tower is mor e than 240– 480 kilomet ers (150–300 mil es ) from the receiver , th e sk y wave beac on s igna l ma y be r ef lected off the ionos phe r e. T his c aus es interference with the ground wave beacon signal [...]

CHAPTER 3 Ag GPS 332 GPS Receiver User Guide 19 Connecting the Receiver 3 Q Introduction Q System Components Q Mounting the Receiver Q Connecting to an External De vice Q System Components Q Routing and Connecting the Antenna Cable Q Connecting to the EZ-Guide Plus System Q Connecting to the EZ-Ste er Assisted Steering System Q Connecting to a La p[...]

3 Connecting t he Receiver 20 Ag GPS 332 GPS Receiver User Guide 3.1 Introduction This chapter d escrib es how to che ck the equipment that y ou ha ve received, set up th e receiver , and c onnect the receiver to another device. 3.2 System Components Check that y ou have received all compon ents for the Ag GPS sy stem that you have purchased . If a[...]

Ag GPS 332 GPS Receiver User Guide 21 Connecting the Receiver 3 3.3 Mounting the Receiver C WAR NI N G – For continued protection against the risk of fire, the power source (lead) to the model Ag GPS 332 r eceiver should be provided with a 10 A (maximum) fuse. 33.1 Choosing a location Wh en choosing a lo cation , consider th e follow ing: M ount [...]

3 Connecting t he Receiver 22 Ag GPS 332 GPS Receiver User Guide 33.2 Environmental conditions Although the receiver has a waterproof housing, you shoul d install it in a dr y location . T o improve th e perf ormance and long-term reliabilit y of the receiver , a void e xposure to extr eme environmental c onditions, including: • water • exces s[...]

Ag GPS 332 GPS Receiver User Guide 23 Connecting the Receiver 3 3.4 Connecting to an External Device After installing th e receiver and connectin g the appropriate cablin g, you c an connect the r ecei ver to vario us extern al devices. F or example: F igure 3.1 shows how to connect the receiver to an external de vice using the Power data cable. Fi[...]

3 Connecting t he Receiver 24 Ag GPS 332 GPS Receiver User Guide Wh en routing the cable from the receiver to the ext ernal devi ce, avoid: • shar p o bje cts • kinks in the cable • hot surfaces ( exhaust manifold s or stacks ) • rotating or moving machiner y parts • shar p or abrasive sur fac es • door and window jams • corr osi ve f[...]

Ag GPS 332 GPS Receiver User Guide 25 Connecting the Receiver 3 3.5 System Components M ount the receiver on a le vel , f l at surface. T o mount it on a ceiling, contact your local T rimble Reseller for the appropriate bracket. Plac e the antenna upri ght with the magnetic base on a f lat m etal surface. Note – A metal combine grain tank extensi[...]

3 Connecting t he Receiver 26 Ag GPS 332 GPS Receiver User Guide Note – If you use ma chine screws, tap t he mounting holes to fa sten the receiver to the mounting surface. T rimble recommends that you u se 8-32 UNF socke t head cap scr ews. Alte rnatively , u se self-tapping scr ews. 30.1 The antenna M ount the ant enna w here it is safe from d [...]

Ag GPS 332 GPS Receiver User Guide 27 Connecting the Receiver 3 Wh en routing the antenna cabl e, avoid the fo llowin g hazards: • shar p o bje cts • kinks in the cable • hot surfaces ( exhaust manifold s or stacks ) • rotating or moving machiner y parts • shar p or abrasive sur fac es • door and window jams • corr osi ve f luids o r [...]

3 Connecting t he Receiver 28 Ag GPS 332 GPS Receiver User Guide F igure 3.4 shows how to connect the receiver to an external de vice using the 5.5 m (18 ft ) standar d powe r/data cab le. Figure 3.4 Standard power/ data cable connections Plug t he: • right-angl e conn ector into the receiver • str aight 9-pin co nnector into the external dev i[...]

Ag GPS 332 GPS Receiver User Guide 29 Connecting the Receiver 3 3.2 Connecting to the EZ-Guide Plus System Fi g u re 3 . 5 a n d Fi g ur e 3. 6 s h o w h o w t o c o n n e c t t h e Ag GPS 332 r eceiver to the Ag GP S EZ -G ui d e P lu s sy st em . Figure 3.5 Connecting the Ag GPS 332 rece iver to the Ag GPS EZ-Guide Plus syste m without the remote[...]

3 Connecting t he Receiver 30 Ag GPS 332 GPS Receiver User Guide 3.3 Connecting to the EZ-Steer Assisted Steeri ng System Fi g u re 3 . 7 a n d Fi g ur e 3. 8 s h o w h o w t o c o n n e c t t h e Ag GPS 332 r eceiver to the Ag GPS E Z-St ee r assi st ed ste er ing sy ste m . Figure 3.7 Connecting the Ag GPS 332 rece iver to the Ag GPS EZ-Steer ass[...]

Ag GPS 332 GPS Receiver User Guide 31 Connecting the Receiver 3 3.4 Connecting to a Laptop Computer F igure 3.9 shows how to connect the receiver power/data cabl e to a lapt op com puter . Figure 3.9 Connecting the rece iver to a laptop computer 9-pin port Connect cable P/N 30945 to Port A Connect antenna cable to Port B[...]

3 Connecting t he Receiver 32 Ag GPS 332 GPS Receiver User Guide 3.5 Connecting to a Windows Handheld Computer F igure 3.10 shows how to conn ect the receiver power/data cable to a Windows CE handh eld computer . Note – T o connect the receiver to a Compaq iP AQ han dheld computer , you require a RS232 9-pin serial cabl e (PN 236251-B21). This ca[...]

CHAPTER 4 Ag GPS 332 GPS Receiver User Guide 33 Getting Started 4 In this chapter: Q Introduction Q Front Panel Q Navigating the Menus and Screens Q Menu System Fields Q The Home Screen Q Updating the Firmware[...]

4 Getting Started 34 Ag GPS 332 GPS Receiver User Guide 4.1 Introduction This chapter d escrib es how to set up and begin using the Ag GPS 332 receiver. I t includes an over vie w of t he Ag GPS m enu sy ste m . 4.2 Front Panel The Ag G PS 332 receiver includes an integrated display and keypad for acc essin g the inter nal Ag GPS menu system. Use t[...]

Ag GPS 332 GPS Receiver User Guide 35 Getting St arted 4 4.3 Navigating the Menus and Scr eens Note – Use a menu to navigate to scr eens or o ther me nus. Us e a scr een t o view the receiver status or to change a configuration set ting. The top le vel of the menu system consists of the Hom e , Statu s , and Configu ra tio n menus. Each of the se[...]

4 Getting Started 36 Ag GPS 332 GPS Receiver User Guide F igure 4.2 shows the structur e of a t ypical s ub-menu , for example Dis pla y Op ti o ns . Figure 4.2 T ypical menu s tructure Pr es s 2 or 1 to move between screens. W ithin screens, select options, vie w receiver stat us, or enter d ata . Wh en Ð appears in a screen, press 4 to per form [...]

Ag GPS 332 GPS Receiver User Guide 37 Getting St arted 4 4.4 Menu System Fields F ield s in a screen contain status information or conf iguration set tings. The information or settings appear in f ield s that are: • disp lay- only • multi pl e-ch oi ce • text 44.1 Display-only fields A display-only field show s status information and other d [...]

4 Getting Started 38 Ag GPS 332 GPS Receiver User Guide Figure 4.4 Example of a multiple-c hoice field 44.3 T ext fields In these fiel ds, you can ent er only let ters (a lpha screens ), only numbers (numeric screens ), or a c ombination of t he two ( alphanumeri c screens ): 1. Press 3 to select th e fi eld and activate the curs or on the f irst l[...]

Ag GPS 332 GPS Receiver User Guide 39 Getting St arted 4 4.1 The Home Scr een One e xample of a numeric field app ears in the Sa tellite Freq screen. Y ou manually enter the broadcast frequency of a satellite ser vice provid er . See F igure 4.5. Figure 4.5 Example of a numeric field Wh en you start th e receiver , the Hom e screen appears. See Fig[...]

4 Getting Started 40 Ag GPS 332 GPS Receiver User Guide 41.2 Satellite and SBAS DGPS mode The Ag G PS 332 r eceiver can r eceive L1 /L2, LBand, Beacon , and R TK sign als . Th e Hom e screen ind icat es which mod e the receiver is in for differential correction . F igure 4.7 explains the GPS status in dicators that can appear on the firs t line o f[...]

Ag GPS 332 GPS Receiver User Guide 41 Getting St arted 4 Note – The “/” s ymbol in the position type spin s when the receiver is operat ing correctly . Satellite DGPS mode status indicators Wh en the receiver is in Satel lite mode, th e second lin e of the Hom e screen displays the status indicators shown in Figure 4.8. Figure 4.8 Satellite D[...]

4 Getting Started 42 Ag GPS 332 GPS Receiver User Guide T able 4.3 exp lains the sig nal-to-noise r atio va lues for both Sate llite and WA A S / E G N O S D G P S m o d e s . SBAS DGPS mode status indicators Wh en the receiver is in SBAS D GPS mod e, the sec ond line of the Home screen displays the status indicators shown in Figure 4.9. Figure 4.9[...]

Ag GPS 332 GPS Receiver User Guide 43 Getting St arted 4 41.3 Beacon DGPS mode Wh en in Beacon D GPS mod e, the Hom e screen displays “ B ” (Beacon DGP S) in the lower l eft corn er . F igure 4.10 explains the status indicators that appear on the f irst line of the Hom e screen d isplay wh en the receiver is in this mode. Figure 4.10 Beacon DGP[...]

4 Getting Started 44 Ag GPS 332 GPS Receiver User Guide 4.2 Updating the Firmware T o ensure t hat the receiver and off ice computer c onnect, w hen you are read y to upd ate the firmware, do one of the fol lowing: • If you use a Windows CE or p ocket PC de vice w ith the comput er , make sure that Mi c r o s o f t A c t i v e S y n c ® technolo[...]

CHAPTER 5 Ag GPS 332 GPS Receiver User Guide 45 Configur ing the Receiver 5 In this chapter: Q Introduction Q Home Screen Q Configuring Differ ential GPS Q Configuring the Ag GPS Receiver to Operat e in Beacon Mode Q Configuring the AgGPS Re ceiver to Operate in R TK Mode Q Configuring the Communication Ports Q Display Options Q Installing Passcode[...]

5 Configuring th e Receiver 46 Ag GPS 332 GPS Receiver User Guide 5.1 Introduction Us e the LC D screen to change configur ation set tings in the Ag G PS 332 receiver. Y ou wi ll ne ed to configure the receiver if you conn ect to anot her device, fo r examp le. • If a T rimble Ag GPS Autop ilot system i s configured to use an Ag G PS receiver , a[...]

Ag GPS 332 GPS Receiver User Guide 47 Configuring the Receiver 5 5.3 Configur ing Differ ential GPS F or the receiver to output GPS po sition coordinates of submet er accuracy , y ou must first select a dif ferential signal from one of the following sour ces: • SBAS (W A AS/EGNO S) – free ser vice, limited availability The Wide Ar ea Augmentati[...]

5 Configuring th e Receiver 48 Ag GPS 332 GPS Receiver User Guide 3. Set the EZ Sat: Omni* field to the area you are operating in. F or example, if you are working in California , select N. A meri ca W est. 4. Press 4 then 5 to complete th e procedure. 5. Obta in an Om n iS T AR l ic enc e fr o m Omn iS T AR . A ll l ice nse s ar e activated over t[...]

Ag GPS 332 GPS Receiver User Guide 49 Configuring the Receiver 5 T o enable W A AS reception in the f ield: 1. T ake the receiver outside. Make su re that it has a clear southeast and sout hwes t view of t he sk y . 2. T urn on the recei ver . W AAS activation can tak e t wo or more min utes. Once acti vat ion s ucceeds , the Home screen d isplays [...]

5 Configuring th e Receiver 50 Ag GPS 332 GPS Receiver User Guide 5.1 Configur ing the Ag GPS Receiver to Operate in R TK Mode T o conf igure the r eceiver in R TK mode: 1. F rom the Home screen, select Configuration / DG PS Co nfi g . 2. Set the Sou r ce Se le c t field t o R TK. 3. P res s 4 then 5 to c omplete thi s par t of the procedure. 4. F [...]

Ag GPS 332 GPS Receiver User Guide 51 Configuring the Receiver 5 50.1 Configuring input/output communic ation The p ort input and output settings appear in the first screen . In Fig ure 5 .2 , t h e p o r t i s s et to a cc e p t T S IP in p ut s at a b a ud rat e of 1 1 5, 0 00 with a parity of 8-Odd-1. The outputs are TSIP , al so at a baud rate [...]

5 Configuring th e Receiver 52 Ag GPS 332 GPS Receiver User Guide The default por t set tings are: Note – If the receiv er is to w ork with an Autopil ot syst em , en sure that the receiver port communication set tings are 8-N-1 TS IP 38.4 K. T o work with some other devices and software progr ams, the receiver port communication se ttings must b[...]

Ag GPS 332 GPS Receiver User Guide 53 Configuring the Receiver 5 Changing the input or outpu t port settings 1. Fr om the Port A Config scr een , press 2 until the Port-A Inp ut/Output screen appears. 2. P res s 3 to activate the cursor . 3. P res s 1 or 2 to change the value. 4. P res s 3 . 5. Re peat Step 3 through Step 4 until y ou have set all [...]

5 Configuring th e Receiver 54 Ag GPS 332 GPS Receiver User Guide 5.1 Display Options Use the Dis pla y Op t io ns menu to contro l how in formation i s displ ayed in the screens that you can a ccess from the Statu s and Configur atio n men us . To v i e w t h e Disp lay Opt io ns menu: • Fr o m t h e Hom e screen , press 2 : Setting the language[...]

Ag GPS 332 GPS Receiver User Guide 55 Configuring the Receiver 5 1. Na vigate to th e Uni ts screen: 2. P res s 3 to select the Unit s field. 3. P res s 1 or 2 until the required uni t is di splay ed . 4. P res s 4 to sele ct it and save the change s. 5. P res s 5 to ret urn to the Dis pl ay Opt ions men u. 6. P res s 5 again to return to the Home [...]

5 Configuring th e Receiver 56 Ag GPS 332 GPS Receiver User Guide B Tip – When the Configura tion menus are locked, you can view most Configuration menu settings from the Status menus. T o unlo ck the C onfiguration menus, repeat th e above pro cedure. Clearing batte ry-backed RAM C WAR NI N G – When you select the Clear BB Ram option, any chan[...]

Ag GPS 332 GPS Receiver User Guide 57 Configuring the Receiver 5 3. P res s 3 to move to the ne xt digit. 4. Repeat S tep 2 throu gh Ste p 3 until all numb ers are entered. 5. P res s 4 to save changes. The screen displays the sele cted option as enabled . If an error message ap pears, enter t he passwor d agai n . I f you ar e still uns uccess ful[...]

5 Configuring th e Receiver 58 Ag GPS 332 GPS Receiver User Guide If an y password operation fails, the FlashLo ader200 utility displays a message that id entifies the fail ed op tion. Di sconn ect the receiver , then reconnect it and tr y again . If you are still unsuccessful, c ontact your local T rimble Reseller for assistance.[...]

CHAPTER 6 Ag GPS 332 GPS Receiver User Guide 59 T r oubleshooting 6 In this chapter: Q Introduction Q Problems with GPS Q Interference Problems Q Problems with the GPS Receiver Q Problems with the FlashLoader200 Ut ility[...]

6 T roubleshooti ng 60 Ag GPS 332 GPS Receiver User Guide 6.1 Introduction This chapter describe s some problems that can ari se and explains how to solve them . It includ es a serie s of f lowchar ts to h elp with troubleshooting. As you w ork through this chapt er , you may need to vie w the receiver status or change values in som e fiel ds. F or[...]

Ag GPS 332 GPS Receiver User Guide 61 T roubleshooting 6 Intermittent DGPS signal The correction signal strength can drop to unusable levels. Cause s include tre e canopy cover between the receiver and the differenti al satellit e, radar sets, and microwave transmitters. Move the receiver away from the tree cover and/or from sources of electromagne[...]

6 T roubleshooti ng 62 Ag GPS 332 GPS Receiver User Guide 6.1 Interfer ence Pr oblems Loss of initialization In RTK mode initi alization can be lost when the rover receiver is close to trees or bu ildings and the number of sate llites falls below four . Additionally , initialization may be lost if the receiver has not been tracking R TK corrections[...]

Ag GPS 332 GPS Receiver User Guide 63 T roubleshooting 6 6.2 Pr oblems with the GPS Receiver Engine noi se An unshield ed ignition s ystem can ca use enough noise to block reception of a diff erential signal. Use resistor spark plug wires on the vehicle ignition system. An alternator can caus e noise that interferes with a diff erential signal. •[...]

6 T roubleshooti ng 64 Ag GPS 332 GPS Receiver User Guide Cables One of the cables seems faulty . Use an ohmmeter to check the ca ble. The resistance of a good ca ble between connector pins at each end of the cable is zero. If the cable is sound, but the problem persists, try exchanging the cable with one that you know is workin g. If the cable is [...]

Ag GPS 332 GPS Receiver User Guide 65 T roubleshooting 6 6.1 Pr oblems with the FlashLoader200 Utility Problem Possible so lution The FlashLoade r 200 utili ty cannot detect the receiver or downlo ad the firmware. Make sure that: • Other programs, such as Microsoft ActiveSync technolo gy , are not using the COM port that the computer is using. ?[...]

6 T roubleshooti ng 66 Ag GPS 332 GPS Receiver User Guide[...]

APPENDIX A Ag GPS 332 GPS Receiver User Guide 67 Cables and Connectors A In this appendix: Q Introduction Q Port A and Port B Connectors Q Standard Power/Data Cable[...]

A Cables and Connec tors 68 Ag GPS 332 GPS Receiver User Guide A.1 Intr oduction This appendix contains pin-out information for standard and optional cables. Use the information to trou bleshoot communication problems with the r ecei ver and devices no t sup ported b y the s tandar d and optional cables. A.2 Port A and Port B Connectors T able A.1 [...]

Ag GPS 332 GPS Receiver User Guide 69 Cables and Connectors A A.3 Standar d Power/Data Cable Ta b l e A . 2 g i v e s p i n - o u t information for the standard power/data cable (P/N 30945). T able A.2 Standard power/data cable To r e c e i v e r P1 connec tor 12-pin (femal e) 7 cond cable To c o m p u t e r P2 connector DE9 (female) To D C p o w e[...]

A Cables and Connec tors 70 Ag GPS 332 GPS Receiver User Guide[...]

APPENDIX B Ag GPS 332 GPS Receiver User Guide 71 Specifications B In this appendix: Q Introduction Q AgGPS 332 Receiver Physica l Characteristics Q GPS Channels Performance Q L-Band Satellite Differ ential Correction Receiver with OmniST AR Support Q Receiver Default Settings Q DGPS Antenna Q Dual-Frequency Antenna Q Beacon Channels[...]

B Specificati ons 72 Ag GPS 332 GPS Receiver User Guide B.1 Intr oduction This appendix details specif ications for t he Ag GPS 332 r eceiver and the compatabl e T rimble ant ennas. B.2 Ag GPS 332 Receiver Physical Character istics B.3 GPS Channels Performance Item Descr iption Size 14.78 cm wide x 5.58 cm high x 21.59 cm deep (5.70 in x 2.20 in x [...]

Ag GPS 332 GPS Receiver User Guide 73 Specifications B RTK position accuracy H o r i z o n t a l 2 . 5c m ( 0 . 9 8i n ) + 2p p m , 2s i g m a , a n d v e r t i c a l 3.7 cm (1.46 in) + 2 ppm, 2 sigma, if all of the followin g crit eria ar e met: • At least 5 sate llites • PDOP <4 • CMR corrections • Standard format broa dc ast from a T [...]

B Specificati ons 74 Ag GPS 332 GPS Receiver User Guide B.4 L-Band Satellite Dif ferential Corr ection Receiver with OmniST AR Support B.5 Receiver Default Settings Satellite differential compatibility OmniST AR, WAAS, and EGNOS NMEA messages GGA 1 1 1 , GLL, GSA1, GST , GSV , GS T , MSS, PTNLDG, PTNL PJK, PTNL PJT , PTNL VGK, PTNL VHD, PTNLEV , PT[...]

Ag GPS 332 GPS Receiver User Guide 75 Specifications B B.6 DGPS Antenna B.7 Dual-Fr equency Antenna B.8 Beacon Channels Item Description Size 15.5 cm D x 14.0 cm H (6.1 in x 5.5 in) We ight 0.55 Kg (1.2 lb) Operating temperature –30°C to +65°C Storage temperature –40°C to +80 °C Humidity 100% condensi ng, unit fully sealed Casing Dust-proof[...]

B Specificati ons 76 Ag GPS 332 GPS Receiver User Guide[...]

APPENDIX C Ag GPS 332 GPS Receiver User Guide 77 NMEA-0183 Messages C In this appendix: Q Introduction Q NMEA-0183 Message St ructure Q NMEA Message Summary Q GGA (GPS Fix Data) Q GLL (Position Data) Q GRS (GPS Range Residuals) Q GSA (GPS DO P and Active Sa tellites) Q GST (GPS PRN) Q GSV (GPS Satellites in View) Q MSS (Beacon Receiver Signal Statu[...]

C NMEA-0183 Messages 78 Ag GPS 332 GPS Receiver User Guide C.1 Intr oduction T rimbl e Ag G PS receivers ou tput NMEA (Na tional M arine Electron ic Association) messages for GPS position data trans fer bet ween electronics equipment. Information on the NME A-0183 communication standard for GPS rec eivers is available at www .nmea .org . This appen[...]

Ag GPS 332 GPS Receiver User Guide 79 NMEA-0183 Messages C Each NMEA messag e i ncl ude s: • an identifier to distinguish it from other messages in t he dat a strea m • one or more fiel ds of data , separated by a comma • a check sum (preceded by *) to validate th e data T able C.1 expla ins the fields in the ZDA examp le shown in F igur e C.[...]

C NMEA-0183 Messages 80 Ag GPS 332 GPS Receiver User Guide C2.2 Checksum values Newer T rimble receivers conform to the NMEA-0183 V ersion 2.1 format, in which ch ecksums are mandator y for all me ssages. The ch eck sum is calcul ated from al l charact ers in th e messa ge, including c ommas but excludin g the “$” and “*” d elimiters. The h[...]

Ag GPS 332 GPS Receiver User Guide 81 NMEA-0183 Messages C C2.6 Latitude and lo ngitude values The lati tude and longit ude val ues in NMEA-0183 messag es ar e presented in degrees, minut es, and d ecimal minutes , in a single f ield: • latitude ( ddmm.mmmm) • longitude (dddmm .mmmm) Latitude and longitude direction values are sent in a separat[...]

C NMEA-0183 Messages 82 Ag GPS 332 GPS Receiver User Guide C.3 NMEA Message Summary T able C.3 descri bes the NMEA-0183 message set that i s supported by the Ag GPS rece ivers. Note – S ome messages are only supported when specific T rimble optio ns are installed on the rece iver . Messag es b eginning with PTN L are T rimble proprietar y message[...]

Ag GPS 332 GPS Receiver User Guide 83 NMEA-0183 Messages C All messages in this appendix are presented in the format shown in T able C.1. In each example, the structure is shown in the p aragraph before the table. PTNL,GGK (Time, Position, Posi tion T ype, and DOP) T ime, Position, Position T ype and DOP values PTNLID Proprieta ry (T rimble Receive[...]

C NMEA-0183 Messages 84 Ag GPS 332 GPS Receiver User Guide C.4 GGA (GPS Fix Data) The G GA me ssage contains the tim e, po sition, and fi x related data . The G GA message structure is: $GPGGA,151924,3723.4 54444,N,12202.269777, W ,2,09,1.9,–17.49,M ,–25.67,M,1,0000*5 7 T able C.4 des cribes these fields. T able C.4 GGA message fields Field Des[...]

Ag GPS 332 GPS Receiver User Guide 85 NMEA-0183 Messages C C.5 GLL (Position Data) The GLL m essa ge spe cif ie s th e po sition fi x, tim e of p osit ion f ix, and sta tus . Th e G LL me ss ag e str u ctu re i s : $GPGLL,3723.4543,N, 1220 2.2696,W ,151933, A*3E T able C.5 des cribes these fields. T able C.5 G LL message fields Field Description 1 [...]

C NMEA-0183 Messages 86 Ag GPS 332 GPS Receiver User Guide C.6 GRS (GPS Range Residuals) The GR S message is used to support the Re ceiver Autonomous Int eg ri ty Moni tor in g ( RAIM ). The GR S message s truc tu re is: $GPGRS,220320.0,0 ,-0.8,-0.2,-0.1, -0.2,0.8,0.6,,,,,,,*55 T able C.6 des cribes these fields. Note – Becau se the contents of t[...]

Ag GPS 332 GPS Receiver User Guide 87 NMEA-0183 Messages C C.7 GSA (GPS DOP and Active Satellites) The GS A message i dentifie s the GPS po sition fix mod e, the SV s u sed for navigation, and th e Di lution of Precision value s. The GS A me ssage structur e i s: $GPGSA,A,3,19,28,14,1 8,27,2 2,31,29,,,,, 1.7,1.0,1.3*35 T able C.7 des cribes these f[...]

C NMEA-0183 Messages 88 Ag GPS 332 GPS Receiver User Guide C.8 GST (GPS PRN) The GST message is used to suppor t Receiver Autonomous Integrity Mo n it o r i n g ( RAIM ). The GST messag e struct ur e is: $GPGST ,2203 20.0,1.3,0 .8,0 .5,166.1,0.8 ,0.5,1.6,*4F T able C.8 des cribes these fields. Note – Becau se the contents of this NME A message do[...]

Ag GPS 332 GPS Receiver User Guide 89 NMEA-0183 Messages C C.9 GSV (GPS Satellites in View) The GSV m essage identif ies th e number of SV s in vi ew , the PRN numbers, ele vation , azimuth and SNR value s. The GSV m essage structure is: $GPGSV ,4,1,13, 02 ,02,213,,0 3, -3,000,,1 1,00,121,,14,13,172,05*6 7 T able C.9 des cribes these fields. Note ?[...]

C NMEA-0183 Messages 90 Ag GPS 332 GPS Receiver User Guide C.10 MSS (Beacon Receiver Signal Status) The MS S messa ge identif ies the status of the beacon sig nal , including the be ac on sig nal stren gth , bea co n sign al- to-n oi se ratio (SN R), b ea co n frequency , and beac on bit rate. The MS S messa ge structur e is : $GPMSS,52.5 ,23.7,287[...]

Ag GPS 332 GPS Receiver User Guide 91 NMEA-0183 Messages C C.11 RMC (Recommended Minimum Specific GPS Data) The RMC m essage id entifies th e U TC time, status, latitude, longitude, speed over ground (S O G), date, and mag netic vari ation of the position fix. The RMC me ssage structur e is: $GPRMC,184804.00,A,3723.4 76543,N, 12202.239745,W ,000.0,[...]

C NMEA-0183 Messages 92 Ag GPS 332 GPS Receiver User Guide 11 Direction of magnetic variati on E: Easterly variation from T rue course (subtracts from T rue course) W: Westerly variation from T rue course (adds to T rue course) 12 Mode indicati on A: Autonomous D: Diff erential N: Data not valid T able C.11 RMC message fields (continued) Field Desc[...]

Ag GPS 332 GPS Receiver User Guide 93 NMEA-0183 Messages C C.12 VTG (Course Over Gr ound and Gr ound Speed) The V TG (V elo city T r ue Ground) me ssage identifi es the actual track made good and speed over ground . The V TG message structure is: $GPVTG ,0,T ,,,0.00 ,N,0.00,K*33 T able C.12 de scribe s these fi eld s. Note – Becau se the contents[...]

C NMEA-0183 Messages 94 Ag GPS 332 GPS Receiver User Guide C.13 XTE (Cr oss-T rack Err or) The XTE messa ge repo rt s the vess el’s cross-track error. The XTE message s truct ure is : $GPXTE,A,A,0.050,L,N*5E T able C.13 de scribe s these fi eld s. T able C.13 XTE message fields Field Description 1 2 3 Cross-track error , in nautical miles 4 Direc[...]

Ag GPS 332 GPS Receiver User Guide 95 NMEA-0183 Messages C C.14 ZDA (Time and Date) The ZD A message identif ies U TC tim e, day , month, and year , local zon e number and lo cal zon e minute s. The ZDA me ssage stru cture is: $GPZDA,184830.15,05,1 1,1996,00,00*66 T able C.14 de scribe s these fi eld s. Note – Becau se the contents of this NME A [...]

C NMEA-0183 Messages 96 Ag GPS 332 GPS Receiver User Guide C.15 PTNLEV Pr opr ietary (Event Marker) The P TNLEV message is a T rimble proprietar y m essage for time-tagging and marking w hen an e vent input oc curs. If enabled, this event m essage is output wh ene ver an event i s dete cted . The PTNLEV messag e struct ur e is: $PTNLEV ,184804 .00,[...]

Ag GPS 332 GPS Receiver User Guide 97 NMEA-0183 Messages C C.16 PTNLID Pr opr ietary (T r imble Receiver ID) The P TNLID me ssage is a T rimbl e proprietar y me ssage for identify ing the receiver’ s machine ID , product ID , major and minor r elease nu mb er s, a nd fi rmw are rel ea se d at e . The P TNLID me ssage s tructure is: $PTNLID,097,01[...]

C NMEA-0183 Messages 98 Ag GPS 332 GPS Receiver User Guide C.17 PTNLDG Pr opr ietary (T r imble DGPS Receiver Status) The P TNLD G me ssage is a T rimbl e proprietar y messa ge for identifyin g the D GPS receiver channel str ength , channel SNR , channel frequency , channel bit ra te, chann el number , channel tr acking status, R TCM source, a nd c[...]

Ag GPS 332 GPS Receiver User Guide 99 NMEA-0183 Messages C The PTNLDG message fields ar e define d in fr ee format. The maximum number of c haracters in each field i s indicated above ( for example, 25 bps displa yed as xxx,25,xxx instead of xxx,00025,xxx ). If a channel is disabl ed , the chann el field s can be null fi elds (showing commas only )[...]

C NMEA-0183 Messages 100 Ag GPS 332 GPS Receiver User Guide C.18 PTNL,GGK (Time, Position, Position T ype, and DOP) The P TNL,GGK m essage structur e is: $PTNL,GGK,172 814.00,071296,3723.4 6587704, N,12202.26957864,W , 3,06,1.7,EHT -6.777,M*48 T able C.18 de scribe s these fi eld s. T able C.18 PTNL,GGK message fields Field Description 1 UTC of pos[...]

Ag GPS 332 GPS Receiver User Guide 101 NMEA-0183 Messages C C.19 PTNLSM Pr opr ietary (R TCM Special) The P TNLSM m essage is a T rimble proprietar y me ssage for identifying the Reference Station ID and the ASCII T ext me ssage that is in cluded in an RT C M Typ e 16 S p e c i a l Me ss a g e . T h e P TN L S M m e ss a g e i s ge n e ra t e d any[...]

C NMEA-0183 Messages 102 Ag GPS 332 GPS Receiver User Guide[...]

APPENDIX D Ag GPS 332 GPS Receiver User Guide 103 Thir d-Party Interface Requir ements D In this appendix: Q Software Q Hardware[...]

D Third-Party Interface Requirement s 104 Ag GPS 332 GPS Receiver User Guide D.1 Softwar e The fol lowing t able lists the inter face requirements for connecting an Ag G PS receiver to third-party soft ware. Software Company Pr otoc ol NMEA messag es Baud rate Other Pos Rate Cable P/N req ui re d Notes AgGPS EZ-Map T rimble NMEA GGA 38.4K 8-N-1 5Hz[...]

Ag GPS 332 GPS Receiver User Guide 105 Third-Party Interface Requirement s D D.2 Har dwar e The fol lowing t able lists the inter face requirements for connecting an Ag G PS receiver to third-party hard ware. Company Hardwar e Protocol NM EA messages Baud rate Other Pos rate Cable P/N req ui red Notes Ag Leader Insight NMEA GGA, VTG 9600, or 19.2K [...]

D Third-Party Interface Requirement s 106 Ag GPS 332 GPS Receiver User Guide Case T yler Aim Navigator NMEA GGA 19.2K 8-N-1 5 Hz 30945, 40947-18 Case-IH AFS Y ield Monitor w/ Universal Display or Universal Display Plus NMEA GGA, VTG 4800 8-N-1 1 Hz 32609, (Case P/ N 87302445) Do not set position output faster than 1Hz Needs (Case P/N 87302445) when[...]

Ag GPS 332 GPS Receiver User Guide 107 Third-Party Interface Requirement s D Mid-T ech Legacy 6000 NMEA GGA, VTG 38.4K 8-N-1 5 Hz 30945, 40947-18, 46441 Mid-T ech MC1000 NMEA GGA, VTG 19.2K 8-N-1 5 Hz 3 0945, 40947-18 Mid-T ech Swath XL NMEA GGA 19.2K 8-N-1 5 Hz 30945, 40947-18 New Holland (Ag Leader PF3000) New Holland PLMS Y ield Mont. NMEA GGA, [...]

D Third-Party Interface Requirement s 108 Ag GPS 332 GPS Receiver User Guide SoilT eq Falcon II Controller NMEA GGA, VTG 9600, 19.2K 8-N-1 5 Hz, 10 Hz 30945, 40947-18 SoilT eq Falcon VR Controller NMEA GGA, VTG 9600 8-N-1 5 Hz 30945, 40947-18, 46441 SoilT eq Falc on VR Controller with Falcon T r ack LBAR NMEA GGA, VTG 9600, 19.2K 8-N-1 5 Hz, 10 Hz [...]

Ag GPS 332 GPS Receiver User Guide 109 Index Numerics 1 PPS output 8 A accuracy 9 activati ng O mniST AR 47 AgGPS 170 Field Computer 52 AgGPS 214 GPS recei ver 9 AgGPS 332 receiver 4 compon ents of 20 connecting to a Compaq iP AQ comp uter 3 2 connecting to a laptop computer 31 connectin g to a Windows CE handheld computer 32 connecting to an EZ-Gu[...]

Index 110 Ag GPS 332 GPS Receiver User Guide C cables 7 Compaq iP AQ handheld computer 32 conne ction diagram 23 data interface 69 laptop computer 31 routing 24 Windows CE 31, 32 Window s C E h and hel d c omput er 32 CAN b us p ro tocol 5, 8 casing, speci ficat ion 72 centim eter -l ev el accu racy 9 Clear BB RA M screen 56 clearing battery-b acke[...]

Index Ag GPS 332 GPS Receiver User Guide 111 European Geostationar y Na vigation Overlay Sy st e m see EGNO S European Space Agency website 10 external devices, connecting 23 EZ- Gui de Plu s sy ste m connecting the receiver to 29 set tings for 46 EZ- St e er a ssi ste d st ee rin g sy st em connecting the receiver to 30 set tings for 46 F factor y[...]

Index 112 Ag GPS 332 GPS Receiver User Guide L languag e, c hanging 54 laptop computer , connecting 31 latitude 12, 16 LC T alker ID 80 LG T alker ID 80 loc ation of receiv er 2 1 lockin g Confi guration menus 55 longitude 12, 16 M memory , removing set tings 56 men us Di splay Options 54 lockin g configuration 55 M icrosoft Active Sync 44 mounting[...]

Index Ag GPS 332 GPS Receiver User Guide 113 O OmniS T AR activating 47 configuring the receiver for 47 HP DGPS po sit ioning method 9, 11 specifications f or L-Band satelli te differential correction receiver 74 VBS D GPS p ositioning m ethod 11 XP DGPS positioni ng method 9 OmniS T AR webs ite 11 optional extras 20 output 7 1 PPS 8 RT C M, TSIP ,[...]

Index 114 Ag GPS 332 GPS Receiver User Guide radio noise emissions for Canada iii Radio T echni cal Commi ssion for Maritime Services see RT C M RAIM GAST sen tence 88 GRS ou tput sent ence 86 RAM, c learing 56 Real-T ime Kine matic (RTK) GPS p ositionin g met hod 9 accuracy 9 base station coo rdinates 13 con figu ring f or 50 datu m and elli psoid[...]

Index Ag GPS 332 GPS Receiver User Guide 115 statu s satellite D GPS 15, 41 WA A S / E G N O S D G P S 1 5 subscription-based corrections 11 supp or t, c on ta cti ng 2 T technical suppor t 2 temperature, operating and s torage specificati on 72 thi rd -p ar ty h ardw a re 10 5 third-part y soft ware 104 time 12, 16 T ime, Position , Position T ype[...]

Index 116 Ag GPS 332 GPS Receiver User Guide X XTE mes sag e 94 Y yield monitor , connecting to 23[...]