Capturing measurements with DirtMate RTK in the Propeller Mobile App

When connected to a DirtMate RTK position in the Propeller Mobile App, you can capture high-precision measurements in real time. Captured points automatically sync to the Propeller Platform within the site and workspace where they were taken.

Capturing points

1. To start, press the + button found in the bottom right corner of the screen

2. Select Point.

3. In the point measurement menu, enter a name and description.
   • The point name is typically a number
   • The description is a short code or abbreviation for what the point represents
   • These fields help you organize captures for easier review in the platform later

4. Scroll to the bottom of the menu to assign the point to an existing folder in any of your workspaces

   ℹ️ Note: New workspaces and folders must be created in the Propeller Platform > before they appear here.

5. Ensure the survey pole is plumb/level, with the tip occupying your desired location. Use the bubble vial on the survey rod to minimize tilt for the most accurate result.

6. Tap the yellow Capture button to save the position.

   After each capture, the point name number increments automatically and the description carries over. If you move to a new feature or task, update the description manually before your next capture.

ℹ️ Note: Points can only be captured when DirtMate has an RTK Fix. Low accuracy positions cannot be saved.

Reviewing RTK point measurements in the Platform

Captured points sync automatically to the Propeller Platform. To review them:

1. Open the site and workspace used during the RTK session
2. Select any point marked with a satellite icon

Each point's properties include projected coordinates and Capture details that reflect DirtMate's status at the time of capture.

Capturing a temporary line measurement

Use a line measurement to measure distances and gradients of existing features on site.

1. Tap the + icon to open the measurement tools, then select Line.

2. Walk to your desired starting location and then tap Add point

3. Continue adding points along the feature you want to measure.
   • Two points: displays grade, horizontal distance, and vertical distance. Point-to-point distance accounts for vertical change; horizontal distance uses XY only.
   • Three or more points: displays the length of each segment on the map

4. To add more points, can use the back arrow to return to the line tool. Use Undo button to remove the most recent point.

Capturing a temporary polygon measurement

Use a polygon to measure an area or define a zone for surface comparison. Each point added is 3D, and the resulting polygon creates a temporary TIN surface that can be compared to a design or used as a Smart Volume Surface.

1. Tap the + button to open the measurement tools, then select Polygon

2. Walk the boundary of the area, tapping Add point at each corner. The map highlights the captured area in yellow as you go.

3. When you've defined the area, tap View polygon to review the measurement

4. Use the dropdown to compare the TIN surface against a selected design or use it as a Smart Volume Surface.

ℹ️ Note: The drone survey is not available as a comparison source in this view. To run stockpile or design surface comparisons, disconnect the rover from the details page and return to the standard Propeller Mobile App experience.

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