Checking for Gaps in Base Station Observation Files

If the base station recording is interrupted, there will be gaps in the raw data that will affect PPK processing. Review your base station observables using the Trajectory Plot on the Sensor Tab.

Note: If you can not access to Trajectory Plot from the sensor tab, go to:
%commonprogramfiles%\LP360
Copy the files rtkplot.exe and rtkplot.ini to

%Programdata%\LP360

After that, run rtkplot.exe from Programdata

Select Trajectory Plot on the Sensor Tab.
In the RTKPlot dialog, select “File” -> “Open Obs Data…”:

Figure 1: Location of Open Obs Data command in RTKPlot dialog

Navigate to the base station RINEX file, typically in your \Project\Area\Cycle\Survey folder and select.
The visible satellites should now be displayed and any gaps in the data will be visible. Zoom in and out with the scroll wheel to the time that is relevant for the observation.

Figure 2: Example of Good Coverage

Figure 3: Example of Significant Gaps in Observables

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