GNSS method

You will have set up some GNSS settings when you created the project.

  1. Connect to the GNSS receiver using Bluetooth or, if you are using a Trimble Catalyst DA1 antenna, connect it to the Android device using the USB cable.

  2. If you are using Catalyst On Demand, use Trimble Mobile Manager to start the On Demand session. See Using Catalyst On Demand with Penmap.

  3. Once you connect to the GNSS receiver you can configure additional GNSS settings for the current measurement mode.

To start the GNSS method, tap in the Survey method bar.

The software attempts to connect to the GNSS receiver you have configured for the current measurement mode. If you have not yet configured GNSS settings for the current measurement mode, the software uses the GNSS settings you configured when you created the project.

If the software is unable to detect the connected GNSS receiver, touch-hold the GNSS method button and then tap Settings / GNSS receiver and select the receiver type and connection method. To dismiss the GNSS settings dialog, tap anywhere outside the dialog.

When the software successfully connects to the GNSS receiver, the GNSS Skyplot dialog appears, showing the number of GNSS satellites being tracked by the receiver.

The badge on the GNSS method button displays the number of satellites being used and the GNSS position cursor on the map changes color to indicate the current GNSS status. The software automatically connects to the configured real-time correction source.

To stop using the GNSS method, touch-hold the GNSS method button and then tap Stop GNSS . You may be prompted to confirm if the software should power off the receiver.

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  1. Touch-hold the GNSS method icon to view the GNSS Method menu.
  2. Tap and then select Collection mode. Select:
    • the number of epochs to use in an averaged position.
    • the time interval between GNSS positions when logging GNSS positions by time.
    • the distance interval between GNSS positions when logging GNSS positions by distance.

  3. Tap and make sure the configured Antenna Height is correct. Measure the height to the bottom of the antenna mount, where it attaches to the pole, tripod, or extension.

    The software automatically adds the correct offset amount so that the antenna height used is the same as if you measured to the center of the antenna. The antenna offset is predefined for each antenna type. To view the Antenna offset details, in the GNSS Method menu tap Settings / GNSS receiver and then tap Info.

  4. To connect to the configured real-time correction source, tap Connect .

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  1. Touch-hold the GNSS method icon to view the GNSS Method menu.
  2. Touch-toggle the Occupation Type button to select the appropriate occupation type. If it shows:
    • Averaging, then GNSS positions are averaged to obtain the measurement position.
    • Single, then a single GNSS position is used as the measurement position.
    • Time , then single GNSS positions are logged continuously at the time interval specified in the Collection mode screen.
    • Distance , then single GNSS positions are logged continuously at the distance interval specified in the Collection mode screen.

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