GNSS settings

To configure GNSS settings at any time the GNSS method is not active, touch-hold the GNSS button and then tap .

Alternatively, from the map, tap and then select GNSS.

To close the GNSS settings dialog, tap the screen outside the dialog.

You cannot change GNSS settings when the GNSS method is active. To exit the GNSS method, touch-hold and then tap .

2D RMS

Drag the slider right to increase quality and reject observations that do not meet the quality criteria.

Drag the slider left to increase productivity and use more observations.

The values and colored boxes above the slider indicate the 2D RMS values when the Penmap behavior changes. The 2D RMS value represents the radius of the two-dimensional circle within which approximately 70% of positions occur.

Color Meaning Penmap behavior
Green Within the defined quality limit Measurement starts immediately after you tap the GNSS method button.
Orange Warning limit You are prompted to confirm you want to log the position.
Red Outside the quality limit Measurement is not possible.

The warning limit (orange) is available only in single measurement mode. For all other collection methods (average, continuous measurement by time, continuous measurement by distance) the measurement is rejected. Measurement for average, continuous measurement by time, continuous measurement by distance is accepted only when the measurement is within the defined quality limit (green).

When collecting data, the color of the GPS position cursor on the map indicates the quality level of the current position.

Elevation mask

Enter the elevation (degrees above the horizon) below which a satellite will not be used.

Satellites that are too close to the horizon are subject to interference from objects on the ground.

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In the Averaged field, select the number of epochs to use when averaging GNSS positions.

For some features it can be useful to log positions automatically at a defined distance interval. In the Continuous Distance field, select the distance interval at which a point is measured and stored automatically.

For some features it can be useful to log positions automatically at a defined time interval. In the Continuous Time field, select the interval in seconds at which a point is measured and stored automatically.

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For improved accuracy, connect to a real-time correction service to apply corrections to GNSS data in real time.

Depending on the model of GNSS receiver you are using, you may be able to connect to any of the following types of real-time correction service:

The RTK service wizard appears.

To configure the connection to an NTRIP server

  1. Enter the Service Name.
  2. In the Service Type field, select NTRIP.
  3. Tap Next.
  4. Select the Caster Name from the drop-down list. The IP Address and Port fields are automatically filled out. If the service you want to connect to is not listed, tap and then enter the Caster Name and the IP Address and Port number to connect to.
  5. If more than one correction stream is available, tap Select stream to select the correction stream to receive.
  6. If required, enter your user name and password.
  7. Tap OK.

To configure the connection to a Direct IP RTK service

  1. Enter the Service Name.
  2. In the Service Type field, select Direct IP.
  3. Tap Next.
  4. Enter the IP Address and Port to connect to a GNSS base station directly via the Internet.
  5. From the Real-time corrections list, select the type of corrections to receive.
  6. Tap OK.

To configure the connection to the Trimble CenterPoint RTX service:

  1. Enter the Service Name.
  2. In the Service Type field, select Trimble CenterPoint RTX.
  3. Tap Next.
  4. Select the RTX mode.
  5. Tap OK.

To configure the connection to the Trimble Corrections Hub:

To use the Trimble Corrections Hub you must be using the Trimble Catalyst GNSS positioning service.

  1. Enter the Service Name.

    The software automatically connects to the service.

  2. Tap OK.

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Select the appropriate coordinate system for your location.

Select the Show at startup check box to show the Coordinate system dialog each time you start the software.

Tap Info to view information about the selected coordinate system.

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To connect to a GNSS receiver and use it as a GNSS rover:

  1. Select the Manufacturer of the receiver.

  2. If required, select the Model and Connection method for the GNSS receiver.

  3. If the receiver is a Trimble R12i, R12, or R10 receiver, use Trimble Mobile Manager to calibrate the tilt sensors in the receiver.

    Well-calibrated tilt sensors are essential for accurate results.

  4. Tap Info to view information about the connected GNSS receiver.

  5. If you are using a Catalyst subscription, Penmap will pick the best available subscription via Trimble Correction Hub and use that.

  6. If you are consuming 1-hour blocks from a Catalyst On Demand account, you must install the Trimble Mobile Manager app to your Android device and use Trimble Mobile Manager to start the On Demand session.

    For more information, see Additional software for Trimble Catalyst.

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