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5120VBS User Manual

1. Issue 1 4 7 2008 One Pulse Per Second Two Dimensional Three Dimensional American Standard Code for Information Interchange Bits per Second Counter Electro magnetic Force Decibel Differential Global Positioning System Dilution of Precision European Geostationary Navigation Overlay Service Global Positioning System High Performance Liquid Crystal Display Low Noise Amplifier Omnistar correction signal in the L band frequency Network Control Centre National Marine Electronics Association Standard for interfacing marine electronic devices MTSAT Satellite based Augmentation System Radio Frequency Radio Technical Commission Maritime Virtual Base Station Wide Area Augmentation System Extended Performance OmniSTAR The Global Positioning System 55 OmniSTAR 5120VBS User Manual Appendix D USB driver for 5120VBS At the time of writing this manual no USB driver has been officially released for the 5120VBS by the manufacturer OmniSTAR has found a workable driver that supports the 5120VBS USB functionality The driver creates a virtual comport on the connected computer and can be used as a real comport by connecting different programs to the port First get the driver from the OmniSTAR CD or download it from the website http www omnistar nl DOWNLOAD toolprograms USB COMv2 04 zip unzip it and place it on a temporarily map on your computer Then power up the receiver and connect the USB cable
2. JSHOW response gt JSHOW THISPORT PORTB 1 gt JSHOW AGE 60 2 gt JSHOW FREQ 1535 1530 1200 3 gt JSHOW SMOOTH LONG900 4 gt JSHOW AIR AUTO NORM 5 gt JSHOW POS 52 3 4 6 6 gt JSHOW MASK 5 7 gt JSHOW LIMIT 10 0 8 gt JSHOW ALT NEVER 9 gt JSHOW DIFF LBAND 10 gt JSHOW ASC D1 1 OTHER 11 gt JSHOW ASC GPGGA 1 0 OTHER 12 gt JSHOW BAUD 19200 OTHER 13 gt JSHOW BAUD 19200 PORTC 14 gt JSHOW ASC GPGGA 1 0 15 gt JSHOW BAUD 19200 16 OmniSTAR The Global Positioning System Issue 1 4 7 2008 28 OmniSTAR 5120VBS User Manual This example response is summarized in the following table Table 2 JSHOW 1 Indicates that the current port is port B of the receiver 2 Indicates the current maximum acceptable differential age in seconds 3 Indicates the current frequency of the L band receiver 4 Indicates the carrier smoothing interval is long 900 seconds 5 Indicates the current status of the AIR mode 6 Indicates the current seed position used for start up in decimal degrees 7 Indicates the current elevation mask cut off angle in degrees 8 Indicates that the current limit value is 10 0 meter 9 Indicates the status of the altitude aiding feature 10 Indicates that the current differential mode is LBAND 11 Indicates that D1 is output at a rate of 1 Hz from the other port 12 Indicates that GPGGA is output at a rate of 1 Hz from the other port 13 Indicates that the other
3. OmniSTAR 5120VBS User Manual Setting the update rate to zero as follows will turn off this message JASC D1 0 lt CR gt lt LF gt The RD1 message contains diagnostic information for Omnistar operation Table xx breaks down the RD1 data message into its components This message has the following format RD1 SECOFWEEK WEEKNUM FREQMHZ DSPLOCKED BERBER2 AGC DDS DOPPLER DSPSTAT ARMSTAT DIFFSTATUS NAVCON DITION CC lt CR gt lt LF gt Table 5 RD1 data message defined Field SecOfWeek old WeekNum FreqMHz DSPLocked BER BER2 AGC DDS Doppler DSPStat ARMStat DiffStatus NavCondition Neie lt CR gt lt LF gt Issue 1 4 7 2008 Description The second of GPS week may be a couple of seconds The GPS week number The L band frequency in MHz 1575 4200 is used for SBAS N A Bit error rate bit error rates are given for both SBAS satellites being tracked L band Signal strength 0 0 for SBAS 0 for SBAS A status bit mask for the DSP tracking of SBAS A status bit mask for the ARM GPS solution The SBAS PRN of the satellite in use A series of hex character fields which is read from right to left with each field representing the number of GPS satellites satisfying a certain condition all of which conditions are required if the satellite is to be used in the solution Checksum Carriage Return and line feed OmniSTAR The Global Positioning System 38 OmniSTAR 5120VBS User Manual The fol
4. 7 2008 44 OmniSTAR 5120VBS User Manual Receiver Signal Name Signal Description Connector Pin No NC Ic ee pe 04 Ie Table 5 5120VBS data Port Pin Out port A Descriptions Receiver Signal Name Signal Description Connector Pin No NC Ic Table 6 5120VBS data Port Pin Out port B Descriptions 54321 es 9876 Figure 14 DB9 pin layout on receiver female connector OmniSTAR The Global Positioning System Issue 1 4 7 2008 45 OmniSTAR 5120VBS User Manual Appendix B NMEA 0183 Message options The OmniSTAR 5120VBS is configured to output 3 NMEA 0183 sentences GGA GSA and VTG by default Sentences can be added or removed by the user using the NMEA configuration screens see page 20 or 32 The default output rate is set to 1 Hz but 5 10 and 20 Hz may also be selected Apart from the common NMEA messages starting with GP some proprietary vendor specific messages starting with R or J can be selected for output Default Message Sentence Description T GGA GPS Fix Data GLL Position Data RRE GPS Range Residual Error 7 GSA GPS DOP and Active Satellites GST GPS Pseudorange Noise Statistics GSV GPS Satellites in View RMC Recommended Minimum Specific GPS Data VTG Track Made Good and Ground Speed ZDA Time and Date Table 7 NMEA 0183 messages available for the 5120VBS NOTES D
5. amp LPT Communications Port COMI JN ECP Printer Port LPTL K NetMos PCI Serial Port COM2 oY Hetios PCI Serial Port COMB A Nemos PCI Serial Poit COM A MetMos PCI Serial Port CONS A Verte Unusable Parallel Port LPT2 AN Mei Mos Unusable Parallel Port LPT3 MIN Processors Sound video ard game corkrollers System devices Universal Serial Bus controllers Figure 15 screen view of PORTS in device manager OmniSTAR 57 The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual Appendix E Updating the 5120VBS firmware In order to update the 5120VBS firmware an MS Windows compatible computer either desktop or laptop and the RightArm program are required The 5120VBS has to be connected to a communication port of the computer and has to be switched on The update process does not require reception of either GPS or OmniSTAR satellite signals During the update process do not Switch off either the computer or the 5120VBS receiver and do not disconnect the 5120VBS from the computer After installing and starting the RightArm program the following screen will show Figure 16 RightArm main screen In the top left of RightArm there is a connect window c demonstrated in figureFigure 16 click on that to connect to a receiver Select the proper comport and baud rate and click on ok When the below left screen shows comport opened amp ready the receiver i
6. page 34 command JI This command displays receiver information It has the following format JISCR gt lt LF gt This command queries receiver boards information and displays it Sa Easylog Eile gdr wew Setup Help pj eje el H f gt J1 680469 1 7 26042007 1106 1980 01 06 1 930 4 BK 12 Connected C0 2213 COM3 19200 N 6 1 Logaing Oft Figure 8 JI reply The receiver will reply with the following message 21 880469 1 7 26042007 01 06 1980 01 06 1980 4 8K 12 Table 1 JI Message component description 880469 This field provides the serial number of the GPS engine 1 This field is the fleet number 7 This is the hardware version 26042007 This field is the production date code 01 06 1980 This field is the subscription begin date 01 06 1980 This field is the subscription expiration date 4 8K This field is the ARM version 12 This field is the DSP version OmniSTAR The Global Positioning System Issue 1 4 7 2008 27 OmniSTAR 5120VBS User Manual JSHOW This command is used to poll the receiver for the current operating configuration This command has the following structure JSHOWL SUBSET lt CR gt lt LF gt Using the JSHOW command without the optional subset field will provide a complete response from the receiver An example of this response follows Easylog Ele Edi wew Setup Help D egi a show Connected C0 1 amp 30 CCS 18200 N 8 1 Luggtg Of Figure 9
7. 10 k ohm 10 pF load Receiver status The 5120VBS is equipped with an LCD display showing the status of the receiver Using the display and the buttons around the display the receiver can be configured without the need to connect a computer The functions of the LCD display and the configuration menus are described further on in this manual OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual Mounting the receiver The 5120VBS casing is equipped with two mounting brackets to facilitate mounting the receiver to a surface This section provides information on how to mount the receiver Note The receiver casing was not designed for mounting in high dynamics or high vibration environments To mount the 5120VBS receiver 1 Use the slots on the side of the receiver to place the mounting brackets 2 Mark where the holes need to be and then drill holes in the mounting surface 3 Use screws to secure the casing to the mounting surface When using machine screws tap the mounting holes to fasten the receiver to the mounting surface Alternatively self tapping screws can be used 4 Make sure not to mount the receiver in a location where it can easily be damaged during normal operation Try to protect the receiver against harsh environmental conditions When choosing a mounting location please ensure the menu screen LEDs and buttons are visible and accessible Also make sure it is possible
8. ANIMATION gt off Either on or off menu screens will slide instead of jump SUBSCRIPTION You can enter an upgrade code here FLIP DISPLAY gt NO When changed to YES it flips the display 180 for reverse mounting Issue 1 4 7 2008 OmniSTAR The Global Positioning System 24 OmniSTAR 5120VBS User Manual LANGUAGE English Spanish or French OmniSTAR The Global Positioning System Issue 1 4 7 2008 25 OmniSTAR 5120VBS User Manual Terminal commands Using the display and control buttons setting the operating mode of the receiver is easy For the more advanced user there are also commands available to set the receiver with a terminal program These commands and their meaning are explained in this section Easylog Although you can communicate with any terminal program in this manual the program easylog is used You can freely obtain a version of easylog by the OmniSTAR website http www omnistar nl site 293 default aspx w Easylog Ele Edk Mew Setup Help Disconnected COM1 9600 N 8 1 Legging Off Figure 7 A blank easylog window OmniSTAR The Global Positioning System Issue 1 4 7 2008 26 OmniSTAR 5120VBS User Manual Basic commands The following commands can be used to request the settings of the receiver The receiver reply is also explained Note Please ensure that you save any changes that you wish to maintain beyond the current power up by using the JSAVE
9. East AP sat 1200 S America 1535 1375 98 West AM sat 1200 Eastern U S 1557 8450 101 West MSV EN 1200 Central U S 1557 8350 101 West MSV CN 1200 Western U S 1557 8550 101 West MSV WN 1200 Australia 1558 5100 145 East OPTUS 1200 Table 3 OmniSTAR beams worldwide OmniSTAR The Global Positioning System Issue 1 4 7 2008 35 OmniSTAR 5120VBS User Manual JOMS This command requests the raw OmniSTAR subscription information and has the following form JOMS The receiver will respond with the following message 2JOMS Opt Source Type AccrReduction StartDate EndDate HourGlass Exte ntionTime LinkVector SoftwareVersion a Fasylog File Edt Mem Setup Help ni sle si Am JOMS DRY ALL V8S 0 01 06 1980 11 24 2007 0 0 7 FFF VBS 2 06 Connected 00 0342 0OM3 19200 N 8 7 Logging of Figure 12 JOMS and response This message is summarized in the following table An example of this response follows gt JOMS DRY ALL VBS 0 01 06 1980 1 1 24 2007 0 0 7FFF VBS 2 06 Table 4 JOMS Data Field Description Ots This field indicates a WET or DRY subscription Source RTCM source ID or ALL if VBS AccrReduction 0 is most accurate Default StartDate Subscription end date HourGlass Seconds of metered time also named Count Down Timer Extension Time Seconds of extension Link Vector Hexadecimal mask of links SoftWareVersion This item shows the OmniSTAR library version OmniSTAR The Global Position
10. OTHER lt CR gt lt LF gt Or JAPP APP lt CR gt lt LF gt Application LBAND WAAS AUTODIFF LOCDIF local differential rover RTKBAS local differential base Where APP may be one of the following by name If you issue a JAPP OTHER lt CR gt lt LF gt on a receiver continuing with the above example the response to JAPP lt CR gt lt LF gt would then be gt JAPP AUTODIFF WAAS 2 1 indicating that application slot 2 containing e Dif is currently being used OmniSTAR The Global Positioning System Issue 1 4 7 2008 33 OmniSTAR 5120VBS User Manual JBAUD This command is used to configure the baud rates of the receiver This command has the following structure JBAUD R OTHER lt CR gt lt LF gt Where R may be one of the following baud rates Table 2 baudrates Baudrate 4800 9600 19200 38400 57600 115200 When this command has been issued without the OTHER data field without the brackets the baud rate of the current port will be changed accordingly When the OTHER data field is specified without the brackets a baud rate change will occur for the other port The receiver will reply with the following response gt JSAVE Sending this command is required after making changes to the operating mode of the receiver module This command has the following structure JSAVE lt CR gt lt LF gt The receiver will reply with the following two messages Ensure that the receiver in
11. Recommended Minimum Specific GPS Data The RMC message identifies the UTC time status latitude longitude speed over ground SOG date and magnetic variation of the position fix GPRMC hhmmss ss A ddmm mmmmm D dddmm mmmmm D sss ss T T D DMMYY mm m E 7C Field Number Description 1 Time UTC time of the position fix in hhmmss ss format 2 Status A Valid V Navigation Receiver Warning V is output whenever the receiver suspects something is wrong Latitude coordinate Latitude direction N North S South Longitude coordinate Longitude direction W West E East Speed Over Ground SOG in knots 0 3 decimal places 8 Track Made Good True in degrees N OO P Ga 9 Date in dd mm yy format 10 Magnetic Variation in degrees 11 Direction of magnetic variation E Easterly variation from True course subtracts from True course W Westerly variation from True course adds to True course 12 Mode Indication Autonomous Differential Float RTK HP XP unconverged Data not valid RTK HP XP converged azno Table 14 Description of the RMC message NOTE The receiver outputs this message at a maximum rate of 10 Hz OmniSTAR The Global Positioning System Issue 1 4 7 2008 52 OmniSTAR 5120VBS User Manual VTG Course Over Ground and Ground Speed The VTG Velocity True Ground message identifies the actual track made good and speed over ground GPVTG t T n nn N k kk K Field Num
12. Seconds set NMEA messages for port A set NMEA messages for port B Hours to Local time Status and location of the correction satellite form current position Frequency of used correction satellite Data rate of used correction satellite Bit error rate of used satellite 500 is no lock 0 is perfect reception Longitude of Omnistar Satellite on equator Elevation above horizon in degrees Azimuth of correction satellite Configure the correction satellite Frequency selection mode Frequency of the current satellite OmniSTAR The Global Positioning System Issue 1 4 7 2008 20 OmniSTAR 5120VBS User Manual Lt xx n xx latitude and longitude in degrees Subscription Displays information about your subscription Begin 01 06 1980 Start date of the subscription End 12 31 2012 End date of the subscription Optns DRY can be WET or DRY Type VBS can be VBS or single point LIB VBS 2 06 VBS engine firmware version 2 06 Src ALL Use any DGPS source Enter code gt upgrade codes can be entered here Diff L Band Chosen differential source is L Band OmniSTAR autonomous E Diff sbas WAAS EGNOS External RTCM External RTCM input L Band Omnistar Issue 1 4 7 2008 OmniSTAR The Global Positioning System 21 OmniSTAR 5120VBS User Manual CONFIG WIZARD PROCEED WIZARD You can use the wizard to setup different outputs and differential Sources for your receiver Create new Enter Name XXX name
13. any nature with respect to the use of this product Manual Reference OmniSTAR 5120VBS User Manual Copyright OmniSTAR B V 2008 No part of this manual can be reproduced without the express permission of OmniSTAR B V OmniSTAR The Global Positioning System Issue 1 4 7 2008 iii OmniSTAR 5120VBS User Manual TABLE OF CONTENTS INTRODUCTION adia ae 2 ABOUT THIS MANUAL esu seva coget aa eeu e a a e cate YE Fa ese pe can aR 2 SYSTEM FEATURES RECEIVER FEATURES Housing zs D is ux ACCeSSOF S 5 ios sees ite A Be nde tee e ea cd eerta avc E genre dez INSTALLATION CONSIDERATIONS nennen nnne nnn nnn nnn nenen ennenen 6 COUNTER ELECTROMAGNETIC FORCE CEMF CABLE INSTALLATION ccccccccececeeeeeeceeeeeeeeeeees KS eR H FEATURES AND INFORMATION 9 tbe me Receiver status 5 DR e S MOUNTING THE RECEIVER eessen 10 POWER SUPPLY REQUIREMENTS nennen nenne nennen nennen nnn 11 OPERATING CONSIDERATIONS eeeeeeee nennen nennen nnn nnn nana a sn nn nan 12 NUMBER OF VISIBLE SATELLTES ENNEN KENNEN nn nenne nnn nakana nn nas 12 MULTIPATH m SS e POSITION DILUTION OF PRECISION DDORP 13 SATELLITE ELEVATIONS sive 068 Goshen roe poete de ee ee teca etate tee UP e tone a nada OMNISTAR CORRECTIONS ts scht E P INTERFERENCE UR OPERATION feet aa i aa aasad a da Aa VALEE 14 GETTING STARTED EE 14 COMMUNICATING WITH THE RECEIVER c
14. connector USB 2 0 type B connector to connect with a computer Housing The 5120VBS is housed in an enclosure to provide a complete receiver solution When connected to an antenna and a power source the 5120VBS is a fully functioning GPS DGPS receiver The enclosure offers protection against environmental conditions and RF interference In addition it provides an easy to use interface to the data power and status signals of the GPS card and a rugged water shock and vibration resistant housing for outdoor applications 120 Hz is optional OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual Accessories The following accessories are included with the 5120VBS 1 power cable 1 RS232 data cable 1 USB cable 1 antenna cable 5 meters A CD containing PC utilities and product documentation Figure 1 5120VBS Back End Name Description PORTA RS 232 signals 1PPS and auxiliary strobe signal PORT B RS 232 signals Antenna Antenna connection 50 ohm USB USB type B connector ON OFF On off power switch POWER DC power input GROUND An extra ground terminal for grounding your receiver Table 1 5120VBS Interfaces OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual The preferred antenna for the 5120VBS receiver is the A20 antenna Figure 2 A20 antenna Figure 3 bottom side A20 antenna and m
15. etc and as OmniSTAR receiver monitors the system performance continuously these conditions would be noted OmniSTAR 95 The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual Appendix H OmniSTAR Receiver Problem Report Form Please copy this form and report problem with as much detail as possible Problem with Signal Y N Manual Y N OmniSTAR Y N Receiver Y N Description of problem Model Person Reporting Contact Phone Customer Name Customer Address Customer Phone Area of operations Symptoms from display if any OmniSTAR SS The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual Appendix I Mechanical drawing for mounting This appendix show a 1 1 scale drawing of the 5120VBS receiver Please note the following drawing fits exactly on the mounting bracket and its holes For your convenience you can print this and use as a drilling mould DO NOT scale this image when printing or you will risk misalignment with the real mounting holes AR ar The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual 155 mm 142 mm Issue 1 4 7 AR The Global Positioning System WLW BG User Notes OmniSTAR 5120VBS User Manual Issue 1 4 7 OmniSTAR The Global Posi g System 69
16. port is set to a baud rate of 19200 14 Indicates that the port C is set to a baud rate of 19200 15 Indicates that GPGGA is output at a rate of 1 Hz from the other port 16 Indicates that the current port is set to a baud rate of 19200 When issuing this command with the optional subset data field without the square brackets a one line response is provided The subset field may be either CONF or GP When CONF is specified for subset the following response is provided gt JSHOW COMF N 0 0 10 0 5 A 60W lt CR gt lt LF gt This response is summarized in the following table N indicates no altitude aiding 0 0 indicates the aiding value if specified either specified height or PDOP threshold 10 0 Residual limit for the JLIMIT command 5 Elevation mask cut off angle in degrees A AIR mode indication 60 Maximum acceptable age of correction data in seconds WwW Current differential mode W indicates WAAS mode OmniSTAR The Global Positioning System Issue 1 4 7 2008 29 OmniSTAR 5120VBS User Manual When GP is specified for subset the following is an example response provided gt JSHOW GP GGA 1 0 lt CR gt lt LF gt This response will provide the gt JSHOW GP message header followed by each message currently being output through the current port and also the update rate for that message JT This command displays the type of receiver engine within the receiver module and has the fol
17. screens Each sub menu screen links sequentially to a number of information configuration screens Cycling through the top menu screens is done by pressing the or button repeatedly The order of the top level menu is GPS L Band Config wizard system setup Pressing the button from one of the top level menu screens will enter the corresponding sub menu Cycling through the sub menu screens of a certain sub menu is again done by pressing the i or button repeatedly To return to the top level menu screen select the Top menu and press the a button To go back one menu select the back option and press the button The information configuration screens under a certain sub menu can be accessed by pressing the ls button To cycle through the screens use the and buttons In some screens information can be edited These screens show a small arrow next to the editable item To enter edit mode press until the arrow changed to 2 smaller up and down arrows To change the setting from the selected menu press the Ki or buttons until you reach the desired value When finished and leaving edit mode press zx Other screens can show more information than fits the screen These screens can be reached by pressing the button It is encouraged to try out the different menus of the receiver so you will get familiar with it s user interface Note The changes you make to the receiver via the serial port will not be saved
18. to the memory for subsequent power up unless a save command is issued JSAVE If changes are made via the menu system they will automatically be saved OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual Top menu home The home screen is the receiver s default screen after a successful receiver power up Figure 6 the receiver main screen In the main screen there are a couple of items that In the top left of the screen are up to 11 bars these represent the GPS satellites signal strength Next to the GPS signal strength indicators there is one stand alone bar in the centre that shows the signal strength of the Omnistar satellite The top right of the screen shows the time By default this is the UTC or GPS time This can be changed to the local time in the menu by selecting the UTC offset time accordingly The four main menu items are also visible GPS L Band Config wizard and System set up OmniSTAR The Global Positioning System Issue 1 4 7 2008 17 OmniSTAR 5120VBS User Manual The menu system on the 5120VBS is designed for easy setup and configuration of the unit in the field or in the office the receiver can be configured almost entirely using the menu system without having to connect to a computer or PDA The menu software supports many different languages French Spanish so that you can easily understand the configuration of the receiver If at any time you
19. Diff Differential source Data PORT A output of port A Data PORT B output of port B Elev Mask Elevation mask GPS MaxDGPSAge Age limit for correction data PORTA baud rate port A PORT B baud rate port B Save to Location There are 5 places to store a configuration Save to Location Not used1 Not used2 Not used3 Not used4 Not used5 SAVE CURRENT Saves current configuration in memory Enter Name Save to Location Not used1 Not used2 Not used3 Not used4 Not used5 DELETE SAVED Remove unwanted configurations from stored memory Not Used 1 Not Used 2 Not Used 3 Not Used 4 Not Used 5 OmniSTAR The Global Positioning System Issue 1 4 7 2008 22 OmniSTAR 5120VBS User Manual USE PREVIOUS Load a configuration from stored memory Not Used 1 Not Used 2 Not Used 3 Not Used 4 Not Used 5 CANCEL return to previous menu SYSTEM SETUP DISPLAY APPS Applications currently on the 5120VBS In Use L Band Currently selected application Other WAAS second selectable application SwapApplications exchanges applications DISPLAY FORMAT Display update 1 Hz update rate of the receiver display LL Unit DM M GGA and GLL output can be DMS D D OR DM M Hgt Unit gt meters Height an be feet or meters Vel Unit gt km h Can be MPH km h or knots BAUD RATES sets the baudrate of port A and port B Port A gt 9600 available rates in Table 2 baudrates Port B gt 9600 available rates in Table 2 baudrates DI
20. GA message Table 9 Description of the GLL message os SE e Table 10 Description of the RRE message ssssssseeeee 48 Table 11 Description of the GSA message cccceeeeeeeeeeeeeeeeeeeeeeaeeeeeeeteeaae 49 Table 12 Description of the GST message Table 13 Description of the GSV message Table 14 Description of the RMC message Table 15 Description of the VTG message vg ES is Table 16 Description of the ZDA message sssssseen 54 OmniSTAR The Global Positioning System Issue 1 4 7 2008 vii OmniSTAR 5120VBS User Manual Introduction About This Manual This manual has been produced to assist the typical user with the installation and operation of the OmniSTAR 5120VBS DGPS Receiver System Features The OmniSTAR 5120VBS DGPS Receiver is part of the OmniSTAR worldwide DGPS Service The OmniSTAR service is a full time differential GPS DGPS broadcast system delivering corrections from an array of GPS reference stations located around the globe Reference stations provide industry standard formatted corrections to Network Control Centres NCC s at strategic geographic locations where the corrections are decoded checked and repackaged in a highly efficient format for broadcast The data is modulated onto an RF carrier that is then up converted for transmission to an L band communications satellite The signals are received at the user s location by an antenna demodulate
21. Manual Appendix F OmniSTAR reference stations For its satellite based DGPS service OmniSTAR uses correction data from a number of reference stations distributed all over the globe The most recent map can be found on the Internet See http www surveyplanner com OmniSTAR un The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual Appendix G Receiver Service Procedure If an OmniSTAR receiver unit fails to perform contact the OmniSTAR office within the region after following the procedural checks We wish to hear about frequently experienced problems and your assistance will help by copying the form on the next page filling in the details requested and faxing or mailing the form to the OmniSTAR office for on forwarding to Product Marketing The most common problems are interfacing and usually occur at installation time If you have an interfacing connection not covered in this manual we would like to assist you and produce another technical bulletin that may assist other users in the future If a problem appears that you think may be caused by a system performance problem contact the OmniSTAR office in your region for any system aberrations that may have been experienced We are sensitive to our customers needs and we want to assure specified System performance at all times There could however be situations where conditions are below par such as fringe area operations radio communication disturbance
22. OmniSTAR 5120VBS Issue 1 4 July 2008 OmniSTAR 5120VBS User Manual Notice to Customers This manual has been produced to ensure the very best performance from your OmniSTAR receiver The manual has been clearly set out with simple instructions to ensure trouble free usage of your OmniSTAR receiver This publication could contain technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will be incorporated in new editions of the manual Should you require further assistance please contact your local dealer or the OmniSTAR office OmniSTAR Customer Support and 24 Hour Help Line The Netherlands OmniSTAR B V Dillenburgsingel 69 2263 HW Leidschendam The Netherlands Tel 31 70 317 09 00 Fax 31 70 317 0919 Web www omnistar nl E Mail info omnistar nl Australia South Africa OmniSTAR Pty Ltd OmniSTAR Pty Ltd Tel 61 8 9322 5295 Tel 27 11 315 0420 Fax 61 8 9322 4164 Fax 27 11 312 1774 Web www omnistar com au Web www omnistar co za E Mail omnistar omnistar com au E Mail sales omnistar co za Singapore USA Fugro OmniSTAR Pte Ltd OmniSTAR Inc Tel 65 6542 5001 Tel 1 713 785 5850 Fax 65 6542 2208 Fax 1 713 785 5164 E Mail sales omnistar com sq Web www omnistar com E Mail dgos2 omnistar com OmniSTAR The Global Positioning System Issue 1 4 7 2008 ii OmniSTAR 5120VBS User Manual One Year Limited Hardware War
23. R 5120VBS User Manual NMEA 0183 MESSAGE OopTIONS enne nerennenen nnne nennen NMEA 0183 MESSAGE FORMATS Si d GGA GPS Fix Datan eege dree Se ete Ro Op E d ERE T ee GLL Geographic Position Latitude Longitude 48 RRE GPS Range Residual Error Sei 48 GSA GPS DOP and Active Satellites GST GPS Pseudorange Noise Statistics 50 GSV GPS Satellites in View 51 RMC Recommended Minimum Specific GPS Data Ca dub2 VTG Course Over Ground and Ground Speed 53 ZDA TIME ANG Date etre tend here nnt ito ite EN 54 APPENDIX C encre iei enc e eese 55 ACRONYMS USED IN THIS MANUALE 55 APPENDUDCGD iot oit re eee eii tee nest 56 USB DRIVER FOR 5120VBS nennen e herren nennen 56 APPENDIX Eege EAR 58 UPDATING THE 5120VBS FIRMWARE eene eene rennen 58 APPENDIX iini EENS SAENNEE ge 64 OMNISTAR REFERENCE STATIONS csse een nennen eene nere 64 APPENDUDCQG 2 EE e eren i Ee 65 P dds pacto PD 65 RECEIVER SERVICE PROCEDURE isis 1 1 err re tr reed e ERE E Toe de Faune 65 APPENDIX RH iiie Ante Eege 66 OMNISTAR RECEIVER PROBLEM REPORT Fon 66 APPENDIX geed ege ici ri deed 67 MECHANICAL DRAWING FOR MOUNTING eene 67 LIST OF FIGURES Figure 1 5120VBS Back End egere eee ee a ead ac 4 Figure 2 A20 antenng iieiaeie iaie Fi
24. SPLAY LOGS Can be YES or NO if YES then selectable in output Gga Position latitude longitude standard used GII Old position format Gsa Satellites available Gst GPS position statistics Gsv GPS satellite vehicles tracked Hdt Heading information OmniSTAR The Global Positioning System Issue 1 4 7 2008 23 OmniSTAR 5120VBS User Manual Hpr Rmc Rot Rre Vtg Zda Bin1 Bin2 Bin80 Bin93 Bin94 Bin95 Bin96 Bin97 Bin98 Bin99 RTCM RD1 PCSI 1 Proprietary message containing heading and roll or pitch not useable for 5120VBS Recommend minimum Configuration RTC derived GPS rate of turn not useable for 5120VBS GPS Range Residuals Velocity and Course info Timing information Binary GPS position message Binary message containing GPS DOP s Binary message containing SBAS information Binary message containing ephemeris info Binary message containing code and carrier phase information Binary message containing process statistics Binary message containing satellite and almanac information Binary message containing GPS diagnostic information RTCM output Lband diagnostic information also see page 37 Proprietary message SOFTWARE DISPLAY Menu System gt 1 17 Menu version 1 17 ReceiverApp gt 4 8K Firmware version 4 8 S n gt 880XXX OmniSTAR serialnumber Sbx Not used Receiver GPS Receiver firmware CONTRAST According to your local circumstances you can alter the contrast of the display
25. ariable data fields for this message The receiver will reply with the following response gt OmniSTAR The Global Positioning System Issue 1 4 7 2008 32 OmniSTAR 5120VBS User Manual JAPP This command allows you to request the receiver for the currently installed applications and to choose which application to use The receiver by default comes pre installed with WAAS SBAS in application slot 1 and a second application e Dif in application slot 2 To poll the receiver for the current applications send the following message JAPP lt CR gt lt LF gt There are no data fields to specify in this message The receiver will respond with the following message gt JAPP CURRENT OTHER 1 OR 2 2 OR 1 Where CURRENT indicates the current application in use and OTHER indicates the secondary application that is not currently in use 1 and 2 indicate which application slot is currently being used Available applications are as follows For the sake of the application names the SBAS application is referred to as WAAS by the receiver s internal software For example if the response to JAPP lt CR gt lt LF gt is gt JAPP WAAS AUTODIFF 1 2 indicating that WAAS SBAS is in application slot 1 e Dif is in application slot 2 and that WAAS in application slot 1 is currently being used To change from the current application to the other application when two applications are present issue the following command JAPP
26. baud rate of only 4800 As a result many external devices are still set to communicate with a GPS receiver at 4800 baud This is an average of only 6 NMEA messages per second Therefore be aware not to select too many NMEA messages or a very high output rate for NMEA output unless you have set the baudrate on both the communication port of the 5120VBS and the communication port of the external device to a much higher value first OmniSTAR The Global Positioning System Issue 1 4 7 2008 41 OmniSTAR 5120VBS User Manual The NMEA GGA message is used to provide information about the quality of the D GPS solution Possible values are listed in Table 4 Value Description 0 No GPS 1 GPS Standard Position Service 2 DGPS Table 4 D GPS quality indicators Although the 5120VBS features three communication ports there are only two physical communication ports on the receiver back panel OmniSTAR The Global Positioning System Issue 1 4 7 2008 42 OmniSTAR 5120VBS User Manual Appendix A Technical Specifications Performance Position Accuracy 1 Reacquisition Data Rates Time Accuracy T2 Velocity Accuracy Dynamics Environmental Operating Temperature Storage Temperature Humidity VBS 0 78m 2DRMS lt 1 s L1 typical Omnistar Lband lt 10 s typical 1 5 10 20 Hz 20 ns RMS 0 05 m s RMS Vibration 4 G sustained tracking Maximum Velocity 515 m s Max
27. ber Description 1 Track made good 2 Fixed text T shows that track made good is relative to true north 3 Not used 4 Not used 5 Speed over ground in knots 0 3 decimal places 6 Fixed text N shows that speed over ground is in knots Speed over ground in kilometers hour 0 3 decimal places 8 Fixed text K shows that speed over ground is in kilometers hour N Table 15 Description of the VTG message NOTE The receiver outputs this message at a maximum rate of 10 Hz OmniSTAR The Global Positioning System Issue 1 4 7 2008 53 OmniSTAR 5120VBS User Manual ZDA Time and Date The ZDA message contains UTC the day the month and the year of the local time zone GPZDA hhmmss ss DD MM YY YY bm Field Number Description UTC Day 0 31 Month 0 12 Year Local Zone Description Hours t 13 Hours Local Zone Description Minutes OO P Go Table 16 Description of the ZDA message NOTES Local zone description is the number of whole hours added to local time to obtain UTC The zone description is always negative for eastern longitudes The receiver outputs this message at a maximum rate of 10 Hz OmniSTAR The Global Positioning System Issue 1 4 7 2008 54 OmniSTAR 5120VBS User Manual Appendix C Acronyms used in this manual 1PPS 2D 3D ASCII BPS CEMF dB DGPS DOP EGNOS GPS HP LCD LNA LBAND NCC NMEA MSAS RF RTCM VBS WAAS XP
28. cccccccececcecececeececeececeeeeceeeeeeeeeeeeeeeeeeeeeees 15 STARTING THE RECEIVER cccccccssssseccecessssssceeeesesssseaeeseeesesssaneeesesessssaeeees 16 NAVIGATING THE RECEIVER MENU S nennen eene nennen enne 16 Top men TEE MAIN MENU 22 21 geed dee severe a ede a aiai ETS L BAND CONFIG WIZARD SYSTEM SETUP Position Ea cu d tc MU Viet SEITEN eet et Signal Status Configure Subscription m i SN Go Diff LE Band ini otim tree re umts he EE Mee enc E CONFIG WIZARD ect ttc nein ere ie petere Ye e E De aped PROCEED WIZARD OmniSTAR The Global Positioning System Issue 1 4 7 2008 iv OmniSTAR 5120VBS User Manual SAVE CURRENT DELETE SAVED ANIMATION gt off SUBSCRIPTION FLIP DISPLAY NO LANGUAGE JASC RTOM gt NMEA MESSAGES NMEA MESSAGES APPENDIX 43 TECHNICAL SPECIFICATIONS cns crate t tn debet treno e dept n De Pe eaae 43 Performance us E E Environmental asl ae LR a ee PEDE 43 Power requirements sessssssssssssssseeesee nennen nnne nnn tinet 44 RF input LNA power output Input output data interface Input output connectors is ES Sek ae Physical dimensions 22334 Avec in reti een etna vi eee 44 Ludzii g 46 OmniSTAR The Global Positioning System Issue 1 4 7 2008 V OmniSTA
29. d by a receiver and are made available after selection of the desired individual reference site s data set as corrections for use in a GPS differential capable receiver The OmniSTAR 5120VBS receivers support the following OmniSTAR service VBS this is the Virtual Base Station service where single frequency GPS code and phase measurements are used to create RTCM corrections data optimised for the users current position OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual Receiver Features The OmniSTAR 5120VBS receiver has the following features 12 parallel GPS code carrier tracking channels L1 C A code and carrier When using Omnistar L band 11 channels GPS LCD top panel display Receiver configuration using the front panel Sub meter differential accuracy RMS assuming at least five satellites and a PDOP Position Dilution of Precision of less than four OmniSTAR VBS Low power consumption 3 Watt 1 5 10 20 Hz position output data user selectable A rugged environmentally sealed enclosure Two RS232 data ports with DB9 connectors supporting the following protocols RS 232 NMEA 0183 output RTCM SC 104 input and output ASCII input proprietary binary input if enabled 1 PPS Pulse per second strobe signal to enable an external instrument to synchronize its internal time with a time derived from the very accurate GPS system time GPS antenna
30. dard deviation of latitude error in meters Standard deviation of longitude error in meters Standard deviation of altitude error in meters Table 12 Description of the GST message NOTE Because the contents of this NMEA message do not change significantly during a 1 second interval the receiver outputs this message at a maximum rate of 1 Hz OmniSTAR The Global Positioning System Issue 1 4 7 2008 50 OmniSTAR 5120VBS User Manual GSV GPS Satellites in View The GSV message identifies the number of SVs in view the PRN numbers elevation azimuth and SNR values GPGSV M S T sv el azm snr sv el azm snr sv el azm snr sv el azm snr XX Field Number Description 1 Total number of sentences of this type in this cycle 2 Sentence number 3 Total number of SVs visible 4 SV PRN number 5 Elevation in degrees 90 maximum 6 Azimuth degrees from true north 000 to 359 7 SNR 00 99 dB null when not tracking 8 11 Information about second SV same format as fields 4 7 12 15 Information about third SV same format as fields 4 7 16 19 Information about fourth SV same format as fields 4 7 Table 13 Description of the GSV message NOTE Because the contents of this NMEA message do not change significantly during a 1 second interval the receiver outputs this message at a maximum rate of 1 Hz OmniSTAR The Global Positioning System Issue 1 4 7 2008 51 OmniSTAR 5120VBS User Manual RMC
31. dicates that the save process is complete before turning the receiver off or changing the configuration further gt SAVING CONFIGURATION PLEASE WAIT gt Save Complete No data fields are required The receiver will indicate that the configuration is being saved and will notify you when the save is complete OmniSTAR The Global Positioning System Issue 1 4 7 2008 34 OmniSTAR 5120VBS User Manual OmniSTAR commands JFREQ This message allows you to either manually or automatically tune the OmniSTAR receiver This command has the following structure JFREQ freq baud lt CR gt lt LF gt Where freq is the frequency in kHz and baud is the symbol rate 1200 or 2400 baud e g jfreq 1535152 500 1200 Mind the for the 100 Hz digit The receiver will reply with the following response gt DEK File Edt vew Sebp Help DI ole e filreq 1535153 1200 p Conneded0209 33 COMA 19000 N 8 1 Logging Ort Figure 11 JFREQ and response Entering a frequency of zero with no associated symbol rate will place the OmniSTAR engine into automatic mode Entering a valid frequency and symbol rate will manually tune the receiver The following table provides frequency information for the OmniSTAR satellites Coverage Area Frequency Longitude Satellite Baud Name Rate Europe 1535 1525 25 East EA sat 1200 Africa 1535 0800 25 East AF sat 1200 Asia 1535 1375 109
32. e As far as is practicable ensure that cables and I O connectors are unique and fit only in their allocated location Avoid routing cables along side power generator cabling and other high electrical noise sources This can cause interference Do not kink cables or force cables into sharp bends that may damage the cables and cause system failure After installation ensure that excess cable is looped and clamped or tied safely away from any control cables fuel lines hydraulic lines or moving parts When stowing over length cabling form loops not less than 150 mm minimum cable bend radius Cable routing must avoid high temperature exposure e g exhaust manifold OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual Features and Information This section contains information on the features of the 5120VBS receiver Strobes On the 5120VBS a set of outputs that provide status and synchronisation signals are given These signals are called strobes Access to the 5120VBS strobe signals can be obtained through data port A The strobe available on the 5120VBS is the One Pulse Per Second 1 PPS signal The output is 3 3 Volts and duration is 1 microsecond The rising edge of this signal is synchronised with GPS time Event marker input creates the possibility to generate a marker with for instance a camera that shows up in the data stream The marker is active low falling edge sync
33. efault output of 3 NMEA 0183 messages GGA GSA and VTG the receiver outputs these messages at a rate of 1 Hz OmniSTAR The Global Positioning System Issue 1 4 7 2008 46 OmniSTAR 5120VBS User Manual NMEA 0183 Message Formats In this section each message is described in more detail GGA GPS Fix Data The GGA message includes time position and fix related data for the GPS receiver GPGGA hhmmss ss ddmm mmmmm D dddmm mmmmm D Q sv H H h hh M h hh M A AA DRID XX Field Number Description 1 UTC of Position fix 2 3 Latitude in DDMM MMMM N North or S South j 4 5 Longitude in DDDMM MMMM format E East or W West 6 GPS Quality Indicator O ZNo GPS 1 GPS 2 DGPS VBS 4 HP XP fixed 52 HP XP float 7 Number of Satellites in Use 8 Horizontal Dilution of Precision HDOP 9 10 Height above Mean Sea level in Meters M Meters 11 12 Geodial Separation in Meters M Meters 13 Age of Differential GPS Data T 14 Differential Reference Station ID 0000 1023 j Table 8 Description of the GGA message NOTES 1 The GGA message provides 8 decimal places In non differential mode only the first four decimals are relevant In VBS differential mode the first five decimals are relevant In HP XP mode the first seven decimals are relevant 2 Status fixed converged HP XP solution Status float unconverged HP XP solution 3 Geodial Separation is the difference between the WGS 84 ear
34. gure 3 bottom side A20 antenna and mounting holes Figure 4 Zener Diode Connected a TA Figure 5 Multipath e D a 12 Figure 6 the receiver main screen 17 Figure 7 A blank easylog window 26 Figure g Jlfeply u aient ood tes acct ecrit ee eet quer nde setate c ge duet 27 OmniSTAR The Global Positioning System Issue 1 4 7 2008 vi OmniSTAR 5120VBS User Manual Figure 9 SJSHOW response 4 5 teo gne bem Desde dcn be Dos t 28 Figure 10 JT response s m m Figure 11 UFREQ and response ene Figure 12 JOMS and response nee Figure 13 JRD1 and response Figure 14 DB9 pin layout on receiver female connector Figure 15 screen view of PORTS in device managev Figure 16 RightArm main screen Figure 17 Open receiver screen Ap ad Ca ei Figure 18 the loader screen 59 Figure 19 Firmware image selection screen Figure 20 Firmware image selection screen firmware sele Figure 21 Establishing communication with the receiver E E Figure 22 Programming done enne LIST OF TABLES Table 1 5120VBS Interfaces A Table 2 baudrates Table 3 NavCondition explained Table 4 D GPS quality Imdhcators cette ee eeeaeeeeeeeeeeeeaeeeeeeeeeeaae Table 5 5120VBS data Port Pin Out port A Descriptions Table 6 5120VBS data Port Pin Out port B Descriptions Table 7 NMEA 0183 messages available for the 5120VBS Table 8 Description of the G
35. iew COM 1 GPSAppSk2_Omni_48 bin Erase and Fregiam Program Type osse G Application Met d Applicetion 2 oriy certa r seive s e SE System Bervizes Close Get Version Number DSP Advanced 2 Versionlnfo Activate Loader Ge Stat Application Alter Programming Dieu f e Loaded Comm Port Opened Ready Figure 20 Firmware image selection screen firmware sele Optionally you can check the start application after programming box to run the new firmware after it has been loaded You can choose to do it later with japp command page 33 Click the Erase and Program button button once to proceed with the update process OmniSTAR 61 The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual WnightARM Programming View COM 1 GPSAppSX2 Omni 48J bin Receiver Window Help fl jele eal Programming Yiew COM 1 GPSAppSk2_Omni_48 bin Erase and Fregram Program Type Untosd Fie G Application Mett Stoy LE Applicetion 2 orly certat rezelve s pe S Start Application System Bevis Close Ge Version Number DSP Advanced el Version Zu Activate Loader Gen Slat Application Alter Programming Dieu Ponana Parca Cangete 00000000000 gm 0 3 Program Flash Cmd Received Ready Figure 21 Establishing communication with the receiver The program will start searching for a compatible rece
36. imum Height 18 288 m 32 C to 74 C 40 C to 85 C Not to exceed 95 non condensing Typical values Performance specifications are subject to GPS system characteristics U S DOD operational degradation ionospheric and tropospheric conditions satellite geometry baseline length and multipath effects Time accuracy does not include biases due to RF or antenna delay 3 i In accordance with export licensing 4 515 m s in combination with an AirSTAR subscription Otherwise the maximum velocity is 180 km h 50 m s OmniSTAR The Global Positioning System Issue 1 4 7 2008 43 OmniSTAR 5120VBS User Manual Power requirements Voltage 8 to 36 VDC Power consumption 3 W typical RF input LNA power output Antenna connector TNC female 50 O nominal impedance RF Input Frequencies 1575 42 MHz L1 1525 MHz 1559 MHz L Band LNA Power 5 VDC Input output data interface Electrical Format RS232 USB 2 0 Bit Rate 4800 9600 19200 38400 57600 115200 bps Lead input CTS and DTR Lead output RTS and PPS Signals Supported TX RX RTS CTS DTR PPS Input output connectors A Data port A B Data port B USB USB Power Power Ant Antenna Physical dimensions Size 160 w x 45 h x 114 mm d Weight 0 54 kg d Most external hardware using GPS NMEA messages is set to use 4800 bps 8 databits 1 stopbit and no parity 8N1 OmniSTAR The Global Positioning System Issue 1 4
37. ing System Issue 1 4 7 2008 36 OmniSTAR 5120VBS User Manual JLIMIT This command is used to change the threshold of estimated horizontal performance for which the DGPS position LED is illuminated The default value for this parameter is a conservative 10 0 meters This command has the following format JLIMIT LIMIT lt CR gt lt LF gt Where LIMIT is the new limit in meters The receiver will respond with the following message gt JRD1 This command is used to request diagnostic information from the receiver module To command the receiver to output the diagnostic information message for the currently used SBAS satellites at a rate of 1 Hz use the following query JASC D1 1 OTHER lt CR gt lt LF gt The receiver will respond with the following data message gt LIST VIDT Je amp RO 293894 1 441 1535 1530 0 500 RD1 333633 1441 1535 15310 500 2 00 20 RO1 399692 1441 1535 1699 0 500 38 5E8 4 0 20 5 0 rm RO1 9936391 14411595 1590 0 500 34 1 8 7 0 20 5 0 66366 RO1 393690 1441 1635 1639 0 600 46 968 1 0 20 5 D 6566 RO1 333699 1 441 1535 1532 0 500 31 610 7 0 20 BRO1 333638 1441 1535 1532 500 31 610 7 0 20 SRD1 3399697 1441 1535 1539 0 500 53 211 0 0 20 5 066556 Connected 0016 48 COMS 18200 N 8 1 Loggng Off Figure 13 JRD1 and response other is for outputting the message on another comport OmniSTAR The Global Positioning System Issue 1 4 7 2008 37
38. ion of Latitude Standard deviation of Longitude Standard deviation of Height GPS satellite info Carrier smoothing filter Satellite ephemeris are downloaded Is the Satellite Ephemeris good Satellites not used in calculation Number of Satellites higher than min elevation with healthy ephemeris Number of Satellites with Lband correction data Number of Satellites without L band correction data Can be yes or no Carrier phase lock on Satellite Bit error rate Is there a lock on the satellite Is the framing message decoded Tracking Mode OmniSTAR The Global Positioning System Issue 1 4 7 2008 19 OmniSTAR 5120VBS User Manual ARM GPSLock ARM DiffData ARM ARMLock ARM DGPS ARM Solutn SATELLITES Chxx svxx elxxx Azxxx snr xx Lock to the GPS satellite Is there differential correction data Is there lock to the Omnistar satellite Is the solution differential Is a position solution calculated Shows information about all visible GPS satellites Show Channel Satellite NR PRN Elevation and Azimuth and Signal to noise ratio Repeats for all visible satellites CONFIGURE Elev Mask MaskDGPSAge Data PORTA Data PORT B UTC Offset L BAND Signal Status Freq 15xx xxxx SPS 1200 BER 500 0 o In xx Elev xx x AZ xxx Configure Mode Auto Freq 15xx xxxx Set minimal Elevation Mask see page 31 Default 5 Degrees Set Maximum allowed correction age Default 250
39. iver to upload the firmware to Then it will erase the old firmware this will not take more than 5 10 seconds After the program has finished loading the firmware into the receiver it will show programming done in the status window as shown in Figure 22 OmniSTAR 62 The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual HG RightARM Programming ViewLCOM 1 GPSAppSk2_Omni_48 bin Receiver Window Help fell Programming View COM 1 GPSAppSk2_Omni_483 bin Pon Tie Unload Fto G Application Veiif lor a Applicetion 2 oriy centai r seive s Lom StartAnplication System Sewvizes Cwe Get Version Number DSP Advanced zl Versionlnfo Activate Loader pae T Stat Application Alter Programming Dieu Piogrannirg Done Program Flash Cmd Received Ready Figure 22 Programming done After the firmware upload is completed the 5120VBS s program space will be erased See Figure 22 so the new firmware can be programmed After programming the new firmware the RightArm program will report the flashing completed successfully The updated 5120VBS is now ready to use Updating the firmware may partly erase existing OmniSTAR subscription information from receiver memory It is therefore recommended to check the subscription end dates see page 27 after each firmware upgrade OmniSTAR 63 The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User
40. lites have a larger distance to travel the signals of those satellites will be weaker and may cause a larger position error than the signals of satellites at higher elevations Default all satellites with a signal to noise ratio of 37dB or less and all satellites with an elevation below 5 degrees will not be used in the position calculations Valid SNR values lie between 10 and 60 valid elevation values lie between 0 satellite at horizon and 90 degrees The default angle is 5 degrees as satellites available below this angle will have significant tropospheric refraction errors This message has the following format JMASK E lt CR gt lt LF gt Where the elevation mask cut off angle e may be a value from 0 to 60 degrees The Receiver will reply with the following response gt JNP This command allows the user to specify the number of decimal places output in the GGA and GLL messages This command has the following definition JNP X lt CR gt lt LF gt Where x specifies the number of decimal places from 1 to 8 This command will affect both the GGA and the GLL messages The Receiver will reply with the following response gt OmniSTAR The Global Positioning System Issue 1 4 7 2008 31 OmniSTAR 5120VBS User Manual JASC Using this command you may turn GPS data messages on at a particular update rate or turn it off When turning messages on you have the choice of various update rates available dependi
41. lowing format JT lt CR gt lt LF gt Easylog E II Els Edk view Setup Help Deel el HI T JT SX2g Connected C0 0 30 COMS 19200 N 8 1 Loggig Of Figure 10 JT response The receiver will return the following response indicating that the receiver is an SX2g Co for global differential operation when in SBAS mode and SXli when in e Dif mode CT for internal differential operation JT SX2g JAGE This command allows you to choose the maximum allowable age for correction data The default setting for the 5120VBS is 1800 seconds however you may change this value as you feel appropriate Using COAST technology the receiver is able to use old correction data for extended periods of time If you choose to use a maximum correction age older than 1800 seconds we recommend that you consider testing the receiver to ensure that the new setting meets your requirements as accuracy will slowly drift with increasing time OmniSTAR The Global Positioning System Issue 1 4 7 2008 30 OmniSTAR 5120VBS User Manual This command has the following structure JAGE AGE lt CR gt lt LF gt Where maximum differential age timeout variable age may be a value from 6 to 8100 seconds The Receiver will reply with the following response gt JMASK The system masks control whether or not the receiver will use a certain GPS satellite for its position calculations Since the signals of low elevation satel
42. lowing table describes the ARM status Table 6 ARM status Field Description 01 GPS lock 02 DGPS valid data 04 The ARM processor has lock 08 DGPS solution 10 DGPS solution is good 20 Not used 40 Not used An example of the NavCondition is presented in the following table for the 179889A value Table 3 NavCondition explained Field Description A The number of satellites with lock and carrier phase 9 The number of satellites with ephemeris received 8 The number of satellites with healthy ephemeris 8 The number of satellites that are tracked have an ephemeris which is healthy and are above the elevation mask The number of satellites above the elevation mask The number of satellites with differential The number of satellites with no differential 20 JASC RTCM This command allows you to configure the receiver to output RTCM corrections from SBAS or beacon through either receiver serial port The correction data output is RTCM SC 104 even though SBAS uses a different over the air protocol RTCA To have the receiver unit output RTCM corrections send the following command to the 5120VBS receiver JASC RTCM R OTHER lt CR gt lt LF gt The message status variable R may be one of the following values Table 7 JASC RTCM R Description 0 OFF 1 ON OmniSTAR The Global Positioning System Issue 1 4 7 2008 39 OmniSTAR 5120VBS User Manual When the OTHER data field without the b
43. minated once the receiver has solid GPS lock DGPS Position Indicator LED solid green This LED will illuminate solid green when the receiver has achieved a differential position and a pseudo range residual of better than 10 0 meters default value can be changed If the residual value isworse than the current threshold the green LED will blink indicating that differential mode has been attain ed but that the residual has not met the threshold Communicating with the Receiver Communicating with the receiver is possible using the receiver s front panel and LCD screen a terminal program on a Microsoft Windows based computer or Viewall on a PDA Because the 5120VBS s display is small the receiver uses a number of menus and submenus to access all of the receiver s possible information and configuration screens The 5120VBS features two serial ports The ports handle communication to and from the GPS Receiver The ports may be configured for a mixture of NMEA 0183 binary data and RTCM SC 104 data Configuring the receiver via direct commands will be discussed on page 26 OmniSTAR The Global Positioning System Issue 1 4 7 2008 15 OmniSTAR 5120VBS User Manual Starting the Receiver Supply power to the receiver and press the power button to start the receiver Navigating the Receiver menu s The menu structure of the 5120VBS consists of 3 top level menu screens Each top level menu screen links to one or more sub menu
44. need to return the menu system to the factory default configuration simply hold down the enter key on power on until the splash screen disappears This section of the manual will describe the 5120VBS s menu structure and Screens Main Menu The main sections of the main menu are listed below GPS POSITION STATUS SATELLITES CONFIGURE L BAND SIGNAL STATUS CONFIGURE SUBSCIPTION DIFF L BAND CONFIG WIZARD PROCEED WIZARD SAVE CURRENT DELETED SAVED USE PREVIOUS CANCEL SYSTEM SETUP DISPLAY APPS DISPLAY FORMAT BAUD RATES DISPLAY LOGS SOFTWARE DISPLAY OmniSTAR The Global Positioning System Issue 1 4 7 2008 18 OmniSTAR 5120VBS User Manual The sub sections of the sub menus are listed below GPS Position status Lt Ln Hgt Hdg Vel Age Sv count Hdop Precision Res Rms Sigma a Sigma b Azimuth Sigma Lat Sigma Lon Sigma Alt Navcnd Car Smooth Eph Exists Eph Healthy NotUsed Prev Above Ele Diff corr No Diff Corr Dsp arm DSP CarLock DSP BER DSP DSPLock DSP FrmSync DSP TrkMode Displays current position Latitude in DD MM MMMMMM Longitude in DD MM MMMMMM Height in meters Heading in degrees Velocity in Km Hour Age of correction data in seconds Number of GPS Satellites used Horizontal Dilution of Precision Displays current precision Residual Root Mean Square range Semi Major Axis of accuracy Semi Minor Axis of accuracy Direction of lowest accuracy Standard deviat
45. ng on what your requirements are This command has the following layout JASC MSG R OTHER lt CR gt lt LF gt Where msg is the name of the data message and r is the message rate as shown in the table below Sending the command without the optional OTHER data field without the square braces will enact a change on the current port Sending a command with a zero value for the r field turns off a message GPGGA 10 5 1 0 or 2 Global Positioning System Fix Data GPGLL 10 5 1 0 0r 2 Geographic Position Latitude Longitude GPGSA 1 or 0 GNSS DOP and Active Satellites GPGST 1 or 0 GNSS Pseudorange Error Statistics GPGSV 1 or 0 GNSS Satellites in View GPRMC 10 5 1 0 or 2 Recommended Minimum Specific GNSS Data GPRRE 1 or 0 Range residual message GPVTG 5 1 0 or 2 Course over Ground and Ground Speed GPZDA 5 1 0 or 2 Time and Date When the OTHER data field is specified without the square brackets this command will act as a change on the other port The Receiver will reply with the following response gt JOFF This command allows you to turn off all data messages being output through the current or other port including any binary messages such as Bin95 and Bin96 etc This command has the following definition JOFF OTHER lt CR gt lt LF gt When the OTHER data field is specified without the square brackets this command will turn off all messages on the other port There are no v
46. on at all times The number of visible satellites can decrease due to blockage by objects such as trees and buildings Multipath It is possible for satellite signals to reflect off large nearby objects such as buildings cars or even the ground thereby resulting in an erroneous distance measurement This phenomenon is known as multipath Multipath can cause significant errors in the position determination and it is therefore important to place the receiver in an environment which is free of large reflective surfaces It is also recommended to mount the receiver directly onto a surface while maintaining a clear view of the sky in all directions Figure 5 Multipath OmniSTAR The Global Positioning System Issue 1 4 7 2008 12 OmniSTAR 5120VBS User Manual Position Dilution of Precision PDOP The Position Dilution of Precision PDOP is a measure of the satellite geometry The closer to 1 the PDOP value the more accurate the GPS position will be Satellite elevations The signal from a satellite that is low on the horizon will travel a greater distance through the atmosphere This results in lower signal strength and a delayed reception thereby causing erroneous and noisy data By default the 5120VBS is configured to ignore any GPS satellites that have an elevation angle lower than 5 OmniSTAR corrections For accurate positioning it is essential that the differential corrections are received In order to ensure recepti
47. on of the OmniSTAR satellite signal the line of sight towards the satellite must not be blocked by objects such as trees and buildings To find out which OmniSTAR satellite s can be received at your geographic position please visit the survey planner website http www surveyplanner com Interference Although the 5120VBS has been designed to provide optimal system performance under most circumstances due to the nature of radio communications it is possible that the system performance degrades as a result of local interference sources When interference levels are too high the 5120VBS may even lose lock to either the OmniSTAR satellite or the GPS satellites Interference sources include radio and television transmitters radars microwave ovens poorly shielded spark plugs and aeronautical radio navigation systems in short any device producing electromagnetic energy directly or through harmonic frequencies in the 1525 1580 MHz band OmniSTAR The Global Positioning System Issue 1 4 7 2008 13 OmniSTAR 5120VBS User Manual Operation Before operating the receiver for the first time ensure that you follow the following installation instructions 1 Mount the 5120VBS receiver in a suitable place see also page 10 2 Mount the OmniSTAR A20 antenna in a suitable place see also page 11 3 Connect the antenna cable to the antenna and the receiver making sure the connector is connected to the antenna making
48. ounting holes OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual Installation and Set Up Installation Considerations Before commencing installation of the OmniSTAR 5120VBS in a vehicle or aircraft the following should be considered Determine the preferred location for each unit Consider cable length connector attachment space cable bend radius stowing excess cable moisture chemical corrosion vibration and heat exposure Before drilling holes consider using existing hardware and locations where equipment was previously installed Avoid drilling holes that may damage other equipment e g structural frame members electrical cables or fluid lines High vibration and high temperature locations should be avoided whenever possible In application where vibration exceeds 5Gs acceleration shock mounts are required Refer to Customer support for mounting recommendations Vehicle primary power has voltages that may be harmful to personnel and equipment Disconnect the battery cable from the battery Me negative terminal before making connection to any power terminal within the vehicle OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual Counter Electromagnetic Force CEMF A potential problem inherent in any installation of electronic systems within a vehicle is Counter Electro magnetic Force CEMF CEMF is caused when relays or
49. ower and data cable is connected and secured Connecting or disconnecting an antenna or antenna cable when the receiver is already powered may permanently damage the receivers antenna port or the antenna itself voiding your warranty Connecting or disconnecting the power data cable to from the receiver when the cable is already powered may result in increased wear or an early failure of the power data connector A Warning If the voltage supplied is below the minimum specification the receiver will suspend operation If the voltage supplied is above the maximum specification the receiver may be permanently damaged voiding your warranty OmniSTAR The Global Positioning System Issue 1 4 7 2008 11 OmniSTAR 5120VBS User Manual Operating considerations The 5120VBS has proven to be a high quality positioning device The accuracy that the user can obtain depends on several factors including Number of visible satellites Multipath Dilution of Precision DOP Satellite elevations OmniSTAR corrections Number of visible satellites A minimum of four satellites is required to calculate a 3 dimensional position In general it can be said that every increase in the number of visible satellites will result in an increase in the systems accuracy As the GPS satellites orbit the earth the number of visible satellites will change in time The GPS constellation has been designed to provide a minimum of 4 visible satellites at any locati
50. rackets is specified this command will turn RTCM data on or off on the other port The receiver will reply with the following response gt OmniSTAR The Global Positioning System Issue 1 4 7 2008 40 OmniSTAR 5120VBS User Manual NMEA Messages The NMEA messages screens are used to control the NMEA output of the 5120VBS The 5120VBS is capable of outputting a number of NMEA messages on different output rates which may not all be needed as inputs for the attached device Furthermore the number of NMEA messages that can be sent by the 5120VBS also depends on the baudrate of the communication port and the set output rate of the NMEA messages For example Selecting GGA GSV and RMC to be output at a 5 Hz output rate with an average of 8 satellites in view so 2 GSV messages for every GGA message the baudrate bits per second can be calculated as follows 1 GGA message 89 bytes 8 1 bits byte 801 bits 2 GSV messages 2 72 bytes 8 1 bits byte 1296 bits 1 RMC message 77 bytes 8 1 bits byte 693 bits Total 2790 bits 5 Hz output 5 2790 13950 bits sec In the above example the baudrate should be set to the next higher standard baudrate which is 19 200 to prevent a buffer overflow of the COM port A Warning The above calculation is indicative based on an average message length count Actual values may differ yielding different outcomes A Warning The initial NMEA standard called for a
51. ranty OmniSTAR B V and its operating companies world wide OmniSTAR warrants this product to be free from defects in workmanship and material for a period of one year from the date of original sale by OmniSTAR or its authorised dealers to the original purchaser or end user OmniSTAR reserves the right to repair and or replace at its option any part or parts found to be defective provided such defects in their opinion are due to faulty material or workmanship and are not caused by unauthorised or improper repair or abuse or normal wear Purchaser shall be responsible for shipping and insurance of the returned product for repair under this warranty OmniSTAR will pay shipping and insurance for the product s return to purchaser provided that the product returned proves to be defective under this limited warranty This warranty applies only to normal usage of the product It does not apply to units or electronic circuit boards defective due to improper installation or handling Physical damage due to lightning or other electrical discharge and units subjected to fresh or salt water contamination are not covered OmniSTAR reserves the right not to warrant the product if upon request sufficient proof of recommended installation compliance as laid out in this manual is not provided No other warranties are expressed or implied No other warranties exist OmniSTAR assumes no responsibility for any consequential or incidental losses or damages of
52. s properly connected OmniSTAR 58 The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual Open Receiver x Comm Port com gt CH Baud Rate 19200 Figure 17 Open receiver screen Click on the icon BI program the receiver to open the loading screen shown in Figure 18 fl Programming View COM 1 No file Selected Biss end Pepan Popi T Verily pico C Appleton 2 only cetan raceivera Stat Apaication C Wien Serio Tie entume J C DSP Veimon into dv Activate Lander ow T Slat potcation Alte Progamming OI ey No File Loaded Figure 18 the loader screen Check the activate loader box activated by default In the programming type sub menu select application Then click on select file an explorer screen will open in which the desired image file can be selected see Figure 19 Select the appropriate image file and click the Open button once The name of the selected image file will now be displayed in the grey textbox after Programming view see Figure 20 OmniSTAR 59 The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual T Opm arses ag Figure 19 Firmware image selection screen OmniSTAR The Global Positioning System Issue 1 4 7 60 OmniSTAR 5120VBS User Manual Hf RightARM Programming ViewLCOM 1 GPSAppSk2_Omni_48 bin Receiver Window Help RH slee H Programming Y
53. solenoids connected to the vehicle DC power distribution are de energised The voltage produced may exceed 400 volts CEMF is produced by equipment such as the following HM Electric fan brakes Air conditioners e Starter relays Electric pump relays CEMF is more than sufficient to damage or cause erratic operation of any electronic system that is also connected to the same vehicle DC power supply CEMF can be eliminated by installing diodes at the relays and solenoids that cause the problem and more importantly at the power supply cable connections on the receiver A 47V 5W Zener diode 1N5368 or equivalent should be connected between the receiver ve positive power input terminal and ground as illustrated in Figure 4 Battery ve positive supply Ground Zener Diode Figure 4 Zener Diode Connected OmniSTAR The Global Positioning System Issue 1 4 7 2008 OmniSTAR 5120VBS User Manual Cable Installation Cables must be correctly installed for optimum system operation Therefore the following should be noted Do not route an L Band receiver remote antenna cable with the cabling of any other radio system This may cause interference between both systems If at all possible do not run L Band receiver antenna cables parallel to other radio system cabling closer than 30 centimetres If cables must cross ensure that they cross at an angle of 90 This minimises the possibility of interferenc
54. sure both connectors are secured well Secure the antenna cable using tie wraps 4 Connect the data and the power cable to port A of the 5120VBS receiver If desired also connect the data connector 9 pin sub D connector 5 Connect the power leads to a suitable 8 36 V DC power supply 6 Push the power button once to power up the receiver Getting Started The purpose of this section is to get you started with the 5120VBS as quickly as possible Generally when the receiver is supplied to you it will be configured for the mode and data link s you have subscribed to In most cases getting up and running will be a case of connecting the appropriate cables and applying power to the system Note The first start up can take from 15 to 60 minutes depending on your location Subsequent start ups will output a valid position within 1 to 5 minutes depending on your location and time since the last start up Note The receiver can take up to 60 minutes for a full network map to be received from OmniSTAR satellites Optimum accuracy will be obtained once the unit is processing corrected positions using complete network information OmniSTAR The Global Positioning System Issue 1 4 7 2008 14 OmniSTAR 5120VBS User Manual The 5120VBS uses three LEDs The LED functions are defined as Power Indicator LED red This LED will illuminate when the 5120VBS is powered GPS Lock Indicator LED yellow This LED will remain illu
55. tem Issue 1 4 7 2008 48 OmniSTAR 5120VBS User Manual GSA GPS DOP and Active Satellites The GSA message indicates the GPS receivers operating mode and lists the satellites used for navigation and the DOP values of the position solution GPGSA mf sv sv sv sv sv sv sv sv sv sv sv sv P P H H V V XX Field Number Description 1 Mode M Manual A Automatic 2 Current Mode 1 Fix not available 2 2D fix 3 3D fix 3to 14 PRN numbers of the satellites used in the position solution 15 Position Dilution of Precision PDOP 16 Horizontal Dilution of Precision HDOP 17 Vertical Dilution of Precision VDOP Table 11 Description of the GSA message NOTE When less than 12 satellites are used the unused fields are null OmniSTAR The Global Positioning System Issue 1 4 7 2008 49 OmniSTAR 5120VBS User Manual GST GPS Pseudorange Noise Statistics The GST message is used to support Receiver Autonomous Integrity Monitoring RAIM GPGST hhmmss ss S S M M m m ddd d y y x x h h XX Field Number Description 1 UTC time of GGA fix 2 RMS value of the standard deviation of the range inputs to the navigation process range inputs include pseudoranges and DGPS corrections 3 Standard deviation of semi major axis of error ellipse in meters 4 Standard deviation of semi minor axis of error ellipse in meters 5 Orientation of semi major axis of error ellipse in degrees from true north Stan
56. th ellipsoid and mean sea level MSL 4 Time in seconds since the last OmniSTAR correction update 5 For OmniSTAR reference station ID 0100 VBS 1000 HP 1008 XP 1016 HP XP OmniSTAR The Global Positioning System Issue 1 4 7 2008 47 OmniSTAR 5120VBS User Manual GLL Geographic Position Latitude Longitude The GLL message contains the latitude and longitude of the present position the time of the position fix and its status GPGLL ddmm mmmmmmm D dddmm mmmmmmm D hhmmss ss A XX Field Number Description 1 2 Latitude N North or S South 3 4 Longitude E East or W West 5 UTC of Position 6 Status A Valid V Invalid Table 9 Description of the GLL message RRE GPS Range Residual Error The RRE message is used to support the Receiver Autonomous Integrity Monitoring RAIM GPRRE hhmmss ss R r r r r r r r r rr rr rr rr rr rr rr rr XX Field Number Description 1 UTC time of GGA position fix 2 Residuals 0 Residuals used to calculate position given in the matching GGA line 1 Residuals recomputed after the GGA position was computed 3 to 14 Range residuals for satellites used in the navigation solution in meters Table 10 Description of the RRE message NOTES Because the contents of this NMEA message do not change significantly during a 1 second interval the receiver outputs this message at a maximum rate of 1 Hz OmniSTAR The Global Positioning Sys
57. to access the back panel in order to switch cables or operate the power button There is an option within the menu system to switch the direction of the display so if it is easier for you to mount the unit upside down you may do so and still operate the display easily OmniSTAR The Global Positioning System Issue 1 4 7 2008 10 OmniSTAR 5120VBS User Manual Antenna Location Antenna positioning is critical to system performance The following conditions must be met for optimum system performance 1 Antenna must be mounted at least 1 5 metres away from transmitting antennas of any frequency Closer positioning may cause overloading of receiver RF circuits 2 The antenna should be mounted at the highest practical point that will give a good view of the horizon and be as near level as possible 3 The antenna must be located along the vehicle centre line or at a relevant reference point on the vehicle 4 The antenna should not be mounted in a location where it can easily be damaged during normal operation Power Supply Requirements The 5120VBS can be powered by a vehicle or by a customer supplied power source of 8 36 VDC capable of delivering at least 5W continuous output power For continued protection against the risk of fire the power lead to the 5120VBS receiver should be provided with a 10 Ampere maximum fuse di css Before powering the receiver make sure the antenna cable and antenna are connected and the p
58. to the receiver and computer The computer will ask for the driver for this unknown device point the computer to the driver on the map on your computer where you placed the driver After a successful install the comport will be available It is more difficult to determine what port has been added to your computer If you view the PORTS COM amp LPT in the device manager window you can see what number has been assigned In Figure 15 the port on this demo computer is USB serial number COM 7 Any program can now connect to this comport and be used as a normal comport With the device manager it is also possible to change the comport number when desired Note If you connect the receiver to a different USB port on your computer it is likely that a different comport number will be assigned please verify this with your device manager Note Since no official driver has yet been released OmniSTAR cannot guarantee proper working and cannot support this driver in any way OmniSTAR 9B The Global Positioning System Issue 1 4 7 OmniSTAR 5120VBS User Manual Ele Action Mem Help mii a 9 m j 200 1032 d Computer See Disk drives 1 99 Display adepters 4 DVD CD ROM drives Sy Floppy disk centrolers Floppy disk drives Ga Human Interface Devices H CN IDE ATAJATAPI controllers Se Keyboards 41 7 Mee and other pontig devices Monkere H Multf uncicn adapters A MB Network adapters 71 9 Ports COM

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