Click Properties from the menu to open the spectrum chart properties.
NOTE
Change default chart options, such as background color and grid display, in User preferences.
- Output type: Set the output type and scale for the y-axis.
- Amplitude (log10 y-axis): Show the signal amplitude on a log10 y-axis.
- Power (dB from Peak): Show the output power in decibels below signal peak.
- Amplitude (linear y-axis): Show the signal amplitude on a linear y-axis.
FFT parameters
- FFT size: Set the size of the FFT window in number of samples.
- Window function: Set the FFT window function to Hann, Blackman or Rectangular.
Frequency range (x-axis)
- Automatic: Select to automatically scale the x-axis. Deselect to manually specify the x-axis range.
- Minimum frequency: If automatic scaling is not selected, specify the minimum frequency value for the x-axis.
- Maximum frequency: If automatic scaling is not selected, specify the maximum frequency value for the x-axis.
Output range (y-axis)
- Automatic: Select to automatically scale the y-axis. Deselect to manually specify the y-axis range.
- Minimum value: If automatic scaling is not selected, specify the minimum value for the y-axis.
- Maximum value: If automatic scaling is not selected, specify the maximum value for the y-axis.