Connect to the GNSS receiver

To connect to a GNSS receiver for the first time, use the steps for your receiver below.

NOTE – If you are using Trimble Mobile Manager with Esri ArcGIS Field Maps, connect your device to the receiver using the ArcGIS Field Maps app.

  1. Press the power button on the receiver until the LED starts blinking.

  2. To pair with the receiver, in Trimble Mobile Manager, go to the Home screen and tap Select. In the Select device window select your receiver if shown in the list, or tap Scan for devices to search for a device not previously paired.

  3. The device scans for nearby devices. Receivers are listed by model name and serial number. If you are not sure which receiver is yours, check the serial number label on the underside of the receiver.

  4. If the receiver is not listed, tap the Refresh icon to rescan. If there are a number of Bluetooth devices in the vicinity you may need to refresh the list a couple of times.

    NOTE – It can take some time before your receiver becomes visible to your mobile device.

  5. Select the receiver to connect to.

    If you are prompted to enter a PIN when connecting to a Trimble R series receiver, the default PIN is 0000. Note however that this may have been changed for your receiver in the web interface used to configure the receiver settings.

    TIP – If you have connected to the receiver using the iOS Bluetooth settings screen but it is not listed in Trimble Mobile Manager, return to the iOS Bluetooth settings screen and turn off Bluetooth and then turn on Bluetooth. Return to Trimble Mobile Manager and tap the List Connected Devices button again.

  6. If you are using a DA2 receiver and you are not already signed in to Trimble Mobile Manager, a pop-up message asks you to sign in. Tap Sign in. For more information, see Signing in.

  7. Once connected, the Trimble Mobile Manager Home screen shows the name and serial number of the connected receiver.

TIP – Resetting the receiver will force the receiver to forget any previously connected Bluetooth devices. Press and hold the power button on the receiver until the LED turns off. The receiver will reset itself and turn off. Press the power button again to restart it.

If this happens you may need to ‘forget’ the receiver in your device’s Bluetooth settings screen before starting the Bluetooth pairing process again.

TIP™ technology (Trimble Inertial Platform™ technology) uses an Inertial Measurement Unit (IMU) in the receiver to correct for any tilt in the pole the receiver is mounted on. The technology enables you to collect accurate measurements when the pole is on an angle, so you don't have to ensure the receiver / pole is perfectly upright before collecting a feature.

TIP – Trimble Mobile Manager will provide TIP positions in the Trimble Mobile Manager interface, through the Trimble Mobile Manager WebSocket interface and to applications using location services on Android when Trimble Mobile Manager is set as the Mock Location application. Refer to your application provider to confirm if TIP is supported for your use case.

TIP – While the technology can function without real-time corrections, Trimble recommends using real-time corrections to improve the precision and reliability of the technology.

When you are connected to a receiver that supports TIP technology, TIP status (readiness) will normally move between the following statuses (these are shown on the Status screen):

  • TIP Disabled: Start moving to initialize -> TIP Ready (Poor IMU Alignment) -> TIP Ready

All TIP technology statuses are as follows:

  • TIP Disabled: Start moving to initialize - You will usually see this status during start-up or changes to real-time configuration. With good satellite coverage this state should last <30s.

  • TIP Ready (Poor IMU Alignment) - TIP technology is running but not in an optimal state; the receiver needs movement to reach its optimal state.

  • TIP Ready - TIP technology is functioning in its best state. With the correct antenna height set TIP technology will correctly use the bottom tip of the pole regardless of the tilt on the pole.

If the receiver's calibration exceeds acceptable tolerances, an error message will display: The IMU has excessive bias, please disconnect the receiver and recalibrate the IMU. You may also see: An IMU error has occurred, please reboot the receiver. The following statuses may also show:

  • TIP Disabled: IMU Calibration Required - For information on calibrating the receiver's tilt sensors, see Calibrate the tilt sensors in the receiver.

  • TIP Disabled: Receiver Reboot Required - Reboot your receiver. Refer to the documentation for the receiver for details.

  1. Connect the DA1 antenna to the device using the USB cable provided with the antenna.

  2. In Trimble Mobile Manager, go to the Home screen and tap Select.

  3. In the Select device window, select your Trimble Catalyst DA1.

  4. If the Trimble Catalyst service is not installed or is out of date, you are prompted to go to the Google Play store to update it. See Install the Trimble Catalyst Service.

  5. If you are not already signed in to Trimble Mobile Manager, a pop-up message asks you to sign in. Tap Sign in. For more information, see Signing in.

  6. The Trimble Catalyst Service pop-up appears. Tap OK to grant access and proceed.

    Android requires you to allow the connection each time you reconnect to a USB accessory or device.

    After a few minutes, the Trimble Mobile Manager Home screen updates to show the GNSS status and the position being generated by the receiver.

    The Home screen also shows information about the current Catalyst subscription you are using. For more information, see Licenses screen.

If you are running Trimble Mobile Manager on a Trimble device that has an integrated Trimble GNSS receiver or a Trimble Empower EM100 module, select the device in the Select device window field, and tap Connect.