Window size

Determines the upper and lower window limits.

The unit  determines the units of the window limits to be displayed in the dialog box. The following may be selected:

When the dialog is displayed, the selected unit is the same unit as selected in the Time Data plot type.

The desired lower limit can be typed as shown below.

If your data is an impulse response, it is possible to detect the start of the impulse response by clicking the  button.

The size of the window is then set by setting the upper limit or setting a fixed size as shown below.

If you select Fixed size, the time window will always have the same size. This is useful in some applications. If the fixed size specified here should extend the size of the measurement, the size will be truncated.

The button  is used to set the end of the measurement to the end window limit. This gives the maximum frequency resolution.