ETS-Lindgren 3301C Active Monopole - Manual (Page 51)

Altering Pulse Width / Pulse Repetition Rate
The following figures A–D depict the effect of altering either the pulse width or
pulse repetition rate. A narrow pulse width (A, C) spreads the pulse energy over
a wider frequency band. Wider pulses (B, D) cause narrower lobes. A low pulse
repetition rate (A, B) creates widely spaced spectral lines. Faster rates (C, D)
increase the spectral line density.
Data and Illustrations | 51