AGRA-GPS CRG User Manual
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AGRA-GPS CRG User Manual

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CRG USER MANUAL
March 2024

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  • Page 1 CRG USER MANUAL March 2024...
  • Page 2 +1 (780) 990 4052 www.agragps.com Release Notice: This is the March 2024 release of the CRG User Manual. The current CRG firmware version is 1.04.045. It is assumed that users of the products described herein have technical experience as well as an understanding of the fundamentals of agricultural machinery.

  • Page 3: Important Safety Information

    • Power is supplied to the CRG even when the key is off. Power can be removed in 3 different ways: 1) Remove the connector from the CRG, 2) Remove the fuse supplying circuit power, or 3) Remove a battery lead while the machine is off.

  • Page 4: Back Panel

    The specific machine that can be controlled by the CRG is dependent on the variant that was purchased: for example, a CRG-AGCO variant can control a Fendt tractor, but cannot control a Claas tractor. To control a Claas tractor, you would need to purchase a CRG-CLAAS.
  • Page 5 CRG User Manual ISObus Virtual Terminal (VT) Apps The CRG comes with one or two ISObus VT applications (ISO apps) that will be loaded onto the John Deere monitor. The apps will automatically install themselves into the monitor in the first few minutes of the initial start-up.
  • Page 6 • If there are multiple monitors in the cab, check if the ISO app loaded on the other monitor Switching Between ISO Apps When accessing ISObus VT, the first page viewed may be the CRG-Bridge app. Before setting up the Bridge parameters, it is necessary to setup the CRG-Receiver app. To do this, pull up the app page using the button circled.
  • Page 7 Page 8 ……… GPS Settings Page 9 ……… NTRIP/Modem Page 12 DIAGNOSTICS Page 13 SERIAL PORT UPDATES Refer to the CRG Firmware Update Manual Use this button to switch between the CRG app and the Bridge app March 2024 Page 4 of 24...

  • Page 8: General Settings

    (GPS, GLONASS, Galileo, Beidou). SBAS restricts the receiver to WAAS (for North America) or EGNOS (for Europe). Modem: If the CRG was purchased with an optional cellular modem, the make of the modem is selected here. The “NTRIP Settings” and “Modem Settings” buttons are invisible if no modem is selected.

  • Page 9: Mount Settings

    For a combine or articulated tractor, the fixed axle would be the front axle; and for the articulated tractor, the CRG mount on top of the cab would be behind the front axle, so the setting will be negative. For most tractors, with the CRG mounted at the front of the cab roof, the value is positive because it is in front of the fixed (rear) axle.
  • Page 10 AGRA-GPS Ltd. CRG User Manual To begin, mark the locations of each of the wheels precisely. It is useful to use long rods (2x4 lumber would work, for example) that are visible from the cab. There should be rods near the tires, and rods lined up with axles and visible from the cab to assist with machine placement when reversing direction.

  • Page 11: Gps Settings

    The mode displayed in the monitor when set to Auto is shown here in light grey. Receiver Emulation This setting should be left to “Generic”, unless using the CRG in Implement Steering mode, which requires the setting to be “SF6000”. RTK Loss Tone...
  • Page 12 SIM/data card to be installed. If desired, Agra-GPS optionally supplies a new CRG with a data-only SIM, which simplifies the modem setup process. Please contact us for details. • If you don’t have a cellular modem in your CRG, you may use our Agra-GPS app on your ®...
  • Page 13 RTCM corrections should be located within 35 km (20 miles) of the CRG location for best results. RTK Fix may be achieved with further distances, but bear in mind that accuracy will decrease as distance from the base station increases.
  • Page 14 CRG User Manual f) Send GGA: this is the rate at which the CRG sends its position back to the caster (server). The caster may use this to determine if the CRG is in a valid location. Different casters will have different policies for this, so please obtain this info from your NTRIP service provider.
  • Page 15 Activation is only required for CRGs that use the internal Bridge (for non-JD equipment). It is not required for use with JD equipment. Activation is one-time only, and will remain activated thereafter. If you purchased a CRG-JD, it can be acti- vated later for a single variant type. For ex-...

  • Page 16: Serial Port Output

    Fendt tractors, it is available at the 9-pin D-sub connector to the upper right of the operator seat. For JD machines, it will be available in the same location as the Starfire NMEA output. However, if direct signal access is required, the relevant CRG pins are: CRG “JD” mini-deutsch plug...

  • Page 17: Bluetooth App

    5) Under Settings → Receiver, select the CRG device such as “AGRA-CRG-xxxx”, where xxxx is a unique identifier for your CRG. The CRG must be powered on in order to be found by your mobile phone. If you have multiple CRGs on different machines, you will need to reset this parameter each time you move to a different machine.
  • Page 18 Each non-JD CRG comes with an internal Bridge ISO app tailored to a particular make of machine. If the CRG is connected to a John Deere machine, this Bridge app will not be visible or selectable. If on a non-JD machine, the Bridge app will only appear if Bridge = Enabled on the General Settings page.
  • Page 19 CRG User Manual Within the Bridge app, other commonly available information pages include Help Contact , and Firmware Update (refer to the CRG Firmware Update Manual) The button for accessing the Diagnostic page is circled. March 2024 Page 16 of 24...
  • Page 20 AGRA-GPS Ltd. CRG User Manual Auto-Steer Operation Note the AutoTrac Pie indicator on the JD monitor screen. With the CRG attached, you will usually see 2 quarters of the Pie displayed if everything is normal (Installed and Configured). To move the Pie to 3 quarters (Enabled), try pressing the Pie on screen. On some machines, you may have to select a physical enabling switch or button, often located on the armrest or overhead.
  • Page 21 Implement Steering The CRG fully supports implement steering. Two CRGs are required, with one mounted to the implement, and one mounted to the tractor. An implement steering harness is also required, with integrated CANbus termination. Please ensure the implement harness has proper CANbus termination.
  • Page 22 When in RTK Float mode, the JD monitor will show RTK-X. NOTE: When the CRG switches from RTK Float to RTK Fix mode, auto-steering will disengage. This is normal and expected behaviour, and prevents a sudden unexpected path change. Press the Engage (or Resume) button to re-engage.

  • Page 23: Troubleshooting

    36 is normally acceptable for an RTK fix. Status Light The back side of the CRG (the connector side) contains a coloured status LED. The LED should always be showing at least one colour, usually in a fading pulse. If multiple colours are flashing, then multiple failures have occurred.
  • Page 24 GPS receiver with its location known precisely. Alternate mount points may also represent different flavours of correction stream (for example, the CMR standard, which the CRG cannot use). For best results, the receiver (base station) should be located within 35km (20 miles) of your work site in order for RTK to work adequately.

  • Page 25: Appendix A: Product Specifications

    AGRA-GPS Ltd. CRG User Manual Appendix A: Product Specifications Operating Voltage Range: 10 to 16 VDC, 12V nominal Power Consumption: less than 3W Operating Temperature: -20℃ to +40℃ ambient Weatherproof: NEMA 3X, IP65 ® Supported: Bluetooth BLE and Bluetooth Classic 5.0, RTCM-3.x, NTRIP 2.0...
  • Page 26 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. **DO NOT MODIFY** Changes or modifications not expressly approved by Agra-GPS Ltd could void the user's authority to operate the equipment.

  • Page 27: Appendix B: Connector Pin-Out

    AGRA-GPS Ltd. CRG User Manual Appendix B: Connector Pin-Out Grey connector (Non-JD) Black connector (JD) March 2024 Page 24 of 24...

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