Цитата из Библии (по поводу якобы уменьшения уровня излучения
размазыванием спектра) This is often done intentionally, in order to meet regulatory standards
on interference (EMI) by “spreading” the emitted switching signals
over a range of frequencies (see Figures 9.53 and 9.54). Although there
is some rationale for resorting to this measure when other options are
exhausted, we’re not wild about this practice, which paradoxically encourages
sloppy design that emits more total radiated power. As NASA
engineer Eric Berger remarked, “When I first heard about this practice,
I was appalled. The radiated energy is not reduced, just the peaks in the
frequency domain are. This is like getting rid of a cow pie by stomping
on it.”