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A325 GNSS Smart Antenna User Guide

26

PN 875-0318-000 Rev D2

Index

channels 22
cold start 22
current consumption 23
dimensions 23
hot start 22
input voltage 23
L-band accuracy 22
maximum altitude 22
maximum speed 22
operating temperature 23
power consumption 23
receiver type 22
RTK accuracy 22
SBAS accuracy 22
SBAS tracking 22
serial port 23
storage temperature 23
timing accuracy 22
update rate 22
warm start 22
weight 23

receiver type specification 22
routing cables 9
RTK accuracy specification 22

S

SBAS accuracy specification 22 SBAS
tracking specification 22 serial port
specification 23
specifications, see receiver specifica- tions 22
storage temperature specification 23
surface mount 10

T

timing accuracy specification 22

U

update rate specification 22

W

warm start specification 22
weight specification 23

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Summary of Contents for A325

Page 1: ...Product Name Quick ReferenceGuide Part No A325 GNSS Smart Antenna User Guide Part No 875 0318 000 Rev D2 ...

Page 2: ... G100TM G4TM GateMateTM GPSteerTM H102TM H320TM HQTM IntelliFlow IntelliGateTM IntelliStarTM IntelliTracTM Just Let GoTM L DifTM LiteStar IITM LV101TM LX 1TM LX 2TM M3TM MapStar MBX 4TM miniEclipseTM OutbackTM Outback 360TM Outback ConnXTM Outback Guidance CenterTM Outback Guidance Outback HitchTM Outback MAXTM Outback STM Outback S2TM Outback S3TM Outback S LiteTM Outback StsTM Outback Steering G...

Page 3: ...port If you need to contact Hemisphere GNSS Technical Support Hemisphere GNSS 8515 East Anderson Drive Suite A Scottsdale Arizona US 85255 Phone 480 348 6380 Fax 480 270 5070 techsupport hgnss com Documentation Feedback Hemisphere GNSS is committed to the quality and continuous improvement of our products and services We urge you to provide Hemisphere GNSS with any feedback regarding this guide by...

Page 4: ...he Cables 9 Mounting Options 9 Magnetic Mount 10 Surface Mount 10 Pole Mount 10 Powering the A325 11 Power Considerations 11 Connecting to a Power Source 11 Connecting to External Devices 12 Default Parameters 13 Configuring the A325 13 Chapter 3 GPS Overview 15 GPS Operation 16 Automatic Tracking 16 Receiver Performance 16 Differential Operation 16 Automatic SBAS Tracking 16 Appendix A Troublesho...

Page 5: ...A325 GNSS Smart Antenna User Guide 1 PN 875 0318 000 Rev D2 Chapter 1 Introducing the A325 Smart Antenna A325 Overview Key Features Multi Function Application MFA Software Parts List Product Support ...

Page 6: ...making it ideal for a variety of applications Dual serial CAN and pulse output options make this GNSS receiver compatible with almost any interface Mount the A325 on a variety of roving machines and vehicles for kinematic positioning and navigation applications RTK performance is scalable with A325 utilize the same centimeter level accuracy in either L1 only mode or employ the full performance of ...

Page 7: ...gers CAN systems and other devices See Appendix B Technical Specifications for a list of communication protocols supported by the A325 Table B 4 on page 23 as wellothertechnicalspecifications Multi Function Application MFA Software Your A325 may include MFA software that allows you to set the positioning mode hierarchy of your device Toverify if your A325 contains MFA software send the JAPP comman...

Page 8: ...e GPS Reference icon for information on JAPP JDIFF INCLUDE JDIFF EXCLUDE and other commands you can use with your device Parts List Table 1 1 provides a description quantity and part number for each part in your kit Table 1 1 A325 parts list Part Qty Part Number A325 GNSS Smart Antenna 1 804 0104 000 Mounting adapter part of kit part no 710 0111 000 1 676 0016 000 Mounting adapter low profile 1 67...

Page 9: ... Antenna User Guide 5 PN 875 0318 000 Rev D2 Chapter 2 Installing the A325 Ports and Connections Communication Mounting the A325 Powering the A325 Connecting to External Devices Default Parameters Configuring the A325 ...

Page 10: ...A325 ports and connections Port Connection Description Mounting hole Pole or tripod mount marine 1 standard adaptable to 5 8 adapter in mounting kit Power data port 12 pin External power data cable allows you to supply power to the A325 as well as communicate with external devices via CAN NMEA 0183 serial and binary LED Display The A325 uses a single LED see Figure 2 1 that provides system informa...

Page 11: ...sages that can be transmitted on a CAN bus Table 2 2 shows the PGN description level default update rate and frequency of each message Table 2 2 Transmitted NMEA 2000 messages PGN Description Level Default Update Rate msec Freq Hz 126992 System Time The purpose of this PGN is twofold To provide a regular transmission of UTC time and date and to provide synchronism for measurement data B 1000 1 127...

Page 12: ...set of Global Navigation Satellite System GNSS parameters including position information B 1000 1 129033 Time Date Single transmission that provides UTC time UTC Date and Local Offset B 1000 1 129539 GNSS DOPs Provides a single transmission containing GNSS status and dilution of precision components DOP that indicate the contribution of satellite geometry to the overall positioning error There are...

Page 13: ...t on a vehicle is the center of the cab roof assuming there is a clear view of the sky Position the antenna as high aspossible Routing and Securing the Cables Consider the following when routing cables Power data cable must reach an appropriate powersource Power data cable may connect to a data storage device computer or other device that accepts GPSdata Do not run cables in areas of excessiveheat...

Page 14: ...cation for the A325 see Selecting the Proper Antenna Location on page9 2 Photocopy the bottom of the A325 for use as a template to plan the mounting hole locations Use the outer four holes per your installation If using a photocopy make sure it is scaled one to one with the mounting holes on the bottom of the A325 3 Mark the mounting hole centers on the mountingsurface 4 Place the A325 over the ma...

Page 15: ...n refers to using the accessory item cables available from Hemisphere GNSS The antenna end of the cable is terminated with an environmentally sealed 12 pin connection and the opposite end is either DB9 or unterminated requires field stripping and tinning To power the A325 Connect the A325 to a 12 VDC source Selecting the right power connector will depend on your specific installation requirements ...

Page 16: ...51 0169 000 4 6 m unterminated power data cable Table 2 3 Power data port pinouts Figure 2 2 Power data port pin out assignment Note For successful communication the baud rate of the A325 serial ports Port A and Port B must be set to match that of the devices to which they are connected Pin Description Wire Color 1 Manual mark in White 2 Port B Tx Brown 3 Port B Rx Blue 4 CAN high Orange 5 Signal ...

Page 17: ...e rate 1 Hz to 20 Hz Max DGPS age 259 200 sec Elevation mask 5 Configuring the A325 You can configure the A325 through the serial port using Hemisphere GNSS commands For example you can Select one of the two on boardapplications Select the baudrate Select which NMEA 2000 data message to output on the dual serial ports and the update rate of eachmessage Note Use the JSAVE command to save changes yo...

Page 18: ...A325 GNSS Smart Antenna User Guide 15 PN 875 0318 000 Rev D2 Chapter 3 GPS Overview GPS Operation Differential Operation ...

Page 19: ...n and 2 positioning and heading calculation When the A325 is properly positioned the satellites transmit coded information to the antenna on a specific frequency This allows the receiver to calculate a range to each satellite GPS is essentially a timing system The ranges are calculated by timing how long it takes for the signal to reach the GPS antenna The GPS receiver uses a complex algorithm inc...

Page 20: ...A325 GNSS Smart Antenna User Guide 17 PN 875 0318 000 Rev D2 Appendix A Troubleshooting ...

Page 21: ...iver powerstatus 2 Verify it is locked to a valid DGPSsignal 2 Verify that it is locked to 4 or more GPS satellites 2 Check integrity and connectivity ofpower and data cableconnections Verify the baud rate settingsmatch If trying to connect over Bluetooth ensure Bluetooth module is powered ON and deviceis paired prior to opening theport Random binary data from A325 Verify the RCTM or the Bin messa...

Page 22: ...aticmode JFREQ AUTO Set the differential mode to JDIFF WAAS Ensure there is SBAS coverage in yourarea No GNSS position Verify the antenna s view of the sky especially toward GNSSsatellites Verify the proper application is running on the Eclipse Set the satellite selection to automaticmode JFREQ AUTO No DGPS position in external RTCM mode Verify the baud rate of the RTCM input port matches the baud...

Page 23: ...A325 GNSS Smart Antenna User Guide 21 PN 875 0318 000 Rev D2 Appendix B Technical Specifications ...

Page 24: ... RTC Hot start 10 s typical almanac RTC and position Maximum speed 1 850 kph 999 kts Maximum altitude 18 288 m 60 000 ft Table B 2 Horizontal accuracy Item Specification RMS 67 2DRMS 95 RTK2 3 10 mm 1 ppm 20 mm 2 ppm L band high precision service2 4 0 1 m 0 2 m SBAS WAAS 2 0 3 m 0 6 m Autonomous no SA2 1 2 m 2 5 m Table B 3 L band DGNSS HP XP sensor specifications Item Specification Sensitivity 13...

Page 25: ... Power consumption 4 6 W nominal GPS L1 L2 GLONASS L1 L2 and L band Current consumption 334 mA nominal GPS L1 L2 GLONASS L1 L2 and L band Power isolation No Reverse polarity protection Yes Antenna voltage Internal antenna Table B 6 Environmental specifications Item Specification Operating temperature 40 C to 70 C 40 F to 158 F Storage temperature 40 C to 85 C 40 F to 185 F Humidity 95 non condensi...

Page 26: ...male 5 8 11 UNC 2B adapter and mag mount available 1 Upgrade required 2 Depends on multipath environment number of satellites in view satellite geometry and ionospheric activity 3 Depends also on baseline length 4 Requires a subscription from L band service provider 5 Receive only does not transmit this format Note Eclipse receiver technology is not designed or modified to use the GPS Y Code ...

Page 27: ...o 12 G GPS lock LED 6 GPS operation 16 H hot start specification 22 I input voltage specification 23 J JDIFFX EXCLUDE 4 JDIFFX INCLUDE 4 L L band accuracy specification 22 sensor specifications 22 LED Bluetooth 6 DGPS position 6 GPS lock 6 power on 6 status indicators specification 23 M magnetic mount 10 maximum altitude specification 22 maximum speed specification 22 MFA 3 13 mounting magnetic 10...

Page 28: ...y 22 SBAS tracking 22 serial port 23 storage temperature 23 timing accuracy 22 update rate 22 warm start 22 weight 23 receiver type specification 22 routing cables 9 RTK accuracy specification 22 S SBAS accuracy specification 22 SBAS tracking specification 22 serial port specification 23 specifications see receiver specifica tions 22 storage temperature specification 23 surface mount 10 T timing a...

Page 29: ...Agreement Hemisphere reserves the right to modify the Product without any obligation to notify supply or install any improvements or alterations to existing Software 4 SUPPORT Hemisphere may make available directly or through its authorized dealers telephone and email support for the Software Contact Hemisphere to find the authorized dealer near you As well Hemisphere may make available user and t...

Page 30: ...OTHER LEGAL THEORY AND WILL SURVIVE A FUNDAMENTAL BREACH 16 LIMITS ON LIMITATION OF LIABILITY Some jurisdictions do not allow for the limitation or exclusion of liability for incidental or consequential damages so the above limitation or exclusion may not apply to Licensee and Licensee may also have other legal rights which may vary from jurisdiction to jurisdiction 17 BASIS OF BARGAIN Licensee ag...

Page 31: ...rform or any delay in performance due to unforeseeable circumstances beyond its reasonable control such as labor disputes strikes lockouts war riot insurrection epidemic Internet virus attack Internet failure supplier failure act of God or governmental action not the fault of the non performing party 25 FORUM FOR DISPUTES The parties agree that the courts located in Calgary Alberta Canada and the ...

Page 32: ...ce or accuracy of any Product HEMISPHERE IS NOT RESPONSIBLE FOR PURCHASER S NEGLIGENCE OR UNAUTHORIZED USES OF THE PRODUCT IN NO EVENT SHALL HEMISPHERE GNSS BE IN ANY WAY RESPONSIBLE FOR ANY DAMAGES RESULTING FROM PURCHASER S OWN NEGLIGENCE OR FROM OPERATION OF THE PRODUCT IN ANY WAY OTHER THAN AS SPECIFIED IN HEMISPHERE GNSS S RELEVANT USER S MANUAL AND SPECIFICATIONS Hemisphere GNSS is NOT RESPO...

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