User manual

PicoScope and oscilloscope primer18

5.10

Spectrum view

A spectrum view is one view of the data from a scope device. A spectrum is a

diagram of signal level on a vertical axis plotted against frequency on the horizontal

axis. PicoScope opens with a scope view, but you can add a spectrum view by using

the views menu. Similar to the screen of a conventional spectrum analyzer, a

spectrum view shows you one or more spectra with a common frequency axis. Each

view can have as many spectra as the scope device has channels. Click on one of the

labels below to learn more about a feature.

Unlike in the scope view, in the spectrum view the data is not clipped at the limits of

the range displayed on the vertical axis, so you can apply axis scaling or offset to see

more data. Vertical axis labels are not provided for data outside what is considered to

be the 'useful' range, but rulers will still work outside this range.

Spectrum views are available regardless of which mode - Scope Mode or Spectrum

Mode - is active.

For more information, see: How to set up the spectrum view and Spectrum Options

dialog.