When discussing EMI, what are peak emissions and average emissions?
As mentioned above, a non-spread spectrum oscillator has radiated emissions over a given frequency spectrum. Thus, when defining the frequency spectrum, one wants to distinguish between the peak electromagnetic emissions and the average electromagnetic emissions. The average emission is defined as the average dBmV/m level over a given frequency spectrum of an oscillator output signal. Peak emission is defined as the maximum dBmV/m level at any frequency over a given frequency spectrum of an oscillator output signal.