Before revision: Frequency spectrum of a non-splattering PSK31 signal Frequency spectrum of a splattering PSK31 signal In radio electronics or acoustics, spectral splatter (also called switch noise) refers to spurious emissions that result from an abrupt change in the transmitted signal, usually when transmission is started or stopped.
After revision: Spectral plot of the 27 MHz band during a band opening showing severely distorted and splattered voice signalsFrequency spectrum of a non-splattering PSK31 signal Frequency spectrum of a splattering PSK31 signal In radio electronics or acoustics, spectral splatter (also called switch noise) refers to spurious emissions that result from an abrupt change in the transmitted signal, usually when transmission is started or stopped.