You can select any continuous part of a signal directly inside the signal window:


How to select a range


1.Move the mouse cursor over the signal.

2.Press and hold the left mouse button.

3.Drag the cursor left or right to mark a region.


The selected region will be highlighted using inverted colors.



Extending the selection


While holding the mouse button during selection, you can press:


Home → extend the selection to the beginning of the signal

End → extend the selection to the end of the signal


Tooltip with selection details


During selection, SIGVIEW shows a small tooltip near the mouse cursor containing the start, end, and length of the selected range. This makes it easy to check the exact time/frequency span you are selecting.



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Viewing exact selection values


After selecting a region, right-click anywhere inside it.

The context menu will show:


Exact start position

Exact end position

Exact length of the selected segment


This is particularly useful for measurement tasks such as:


Determining the time difference between two FFT peaks

Checking the duration of a specific waveform segment

Measuring distances between features inside a signal


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