Trace Scale Tab

From the Trace Scale tab in the Spectrogram dialog box the time length of the spectrogram viewport can be changed, as well as where this viewport is located in the trace buffer. The parameters include:

Trace controls: At the top of the Trace Scale tab are controls for selecting, adding, and removing traces.
Visible: Select the Visible check box to make the trace visible on the display; clear the check box to remove the trace from the display. When the trace is enabled, the following parameters can be set:
- Fixed Height
  - Height
- Trace Offset
  - Top Trace

The area to the left of the spectrogram can be right clicked and Trace Scaleselected to open the Trace Scale tab.