3DM-RTK Integration

The 3DM-RTK provides RTK correction information to the 3DM-GQ7 to enhance its positioning accuracy. It is designed to integrate seamlessly with the SensorCloud RTK corrections service over a cellular network. See rtk.sensorcloud.com/overview for more information.

To set up the 3DM-RTK:

  1. Activate the device with SensorCloud RTK. See Device Activation for more details.

    IMPORTANT: The device will not connect to the RTK service without activation.

  2. Attach a cellular antenna to the SMA connector on the 3DM-RTK.

    NOTE: Cell antennas that support LTE Cat M1 or 2G will work with the 3DM-RTK. Cables with 50 ohm impedance can be used to connect the antenna to the SMA connector on the 3DM-RTK.

    TIP: Parker LORD has tested and recommends the following antennas for indoor use: the TG.30.8113 (primary) and the TG.55.8113 (alternate).

  3. Connect the 3DM-RTK to the AUX port on the 3DM-GQ7.

    IMPORTANT: The power requirement for the combined system might be greater than what some USB hosts can provide. If there are difficulties with the 3DM-RTK resetting while searching for a network connection, switch to a higher current power supply to ensure that the system has adequate power.

  4. Enable 3DM-RTK output streaming on the 3DM-GQ7 using the Mip GNSS RTK Dongle Configuration (0x0E,0x10) command.

Once the 3DM-GQ7 has a valid GNSS position, it will start streaming NMEA data to the 3DM-RTK. After the NMEA data is received, the 3DM-RTK will automatically connect to the cell network and start streaming RTCM correction data.