Rca1948FrequencyModu.. - The New Jersey Antique Radio Club

COMMON- AND ADJACENT-CHANNEL INTERFERENCE 329Peak-to-Peak Value of Instantaneous Frequency. The output when2ir\xt = it minus the output at 2x\tl = gives the peak-to-peak value ofthe instantaneous frequency. This is given by:Output O) - Output (0) =2x\i.(10)The curves of Figure 10 show how the peak-to-peak output varies as xincreases. When x = 1, the peak-to-peak output becomes infinite, andit decreases uniformly beyond this point.Harmonic Analysis of Instantaneous Frequency.of the audio output isthe result can be expressed as:If the harmonic contentcalculated by means of a Fourier-series analysis,06o3 0.4|o2