82Blog: TopSURV

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Using Weighted Average in TopSURV

You can use the weighted average function in TopSURV if you repeat an observation on a point in topo by using the same point number. I will generally use this feature when setting control with RTK.

1. Make an observation on your control point. I recommend collecting an average of 30 epochs or more.

2. After logging your point make a second observation on the same point using the same point number.

3. When prompted select Use as a Check point, Use in weighted average.

If you use more than two observations you can throw out any outliers in the weighted average tab.

From the TopSURV User Manual: The WA (Weighted Average) tab appears on the Edit Point screen if the point has check points which are used in a weighted average. To exclude a station from a weighted average, highlight the station. Use the Exclude from WA / Use in WA button to exclude / include the highlighted station in averaging.

>See this walk through video

TopSURV Configurations

Here are a few TopSURV configuration walk throughs for my Military survey friends using the equipment listed below. If you have any questions, comments, or corrections needed drop me a line.

GR-3 Post Processing (Static)

GR-3 Internal Radios (RTK)

GR-3 with TRL-35 (RTK )

GPT-9000 Robotic Configuration (RC-3)

GPT-9000 Conventional/Reflectorless Configuration

DL-101C Auto Level Configurations

Create an Area in TopSURV

Use existing points to create an Area

1. Open the edit Area menu.

2. To add an Area, tap ADD in the bottom right corner. Give the Area a name. Using the SELECT PTS pull-down menu select From Map. Select the points in numerical order (or in an order that creates a closed area).

3. Tap CLOSE when finished.

4. Define the Layer states (if needed). Tap CLOSE from the Add Area window to store the Area.

5. Tap CLOSE from the Area menu to complete.

Areas are simple closed lines formed by points.