Selecting Part of the Signal
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.

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
