Option FFP is designed for a large number of tones to simulate Gaussian Noise with a notch in it. The individual tone properties are not directly accessible by the user. The NPR application provides methods to define the noise signal including the noise bandwidth (number of tones and the tone spacing), the phase type (random, parabolic, and constant) and the notch width and offset from the noise center. The NPR interface also allows the user to specify the IMD correction level desired within the notch (in-band corrections).
This option can be added as a product upgrade.