Angle Modulation
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![](file:///D:/Hamradioindia-Data/HRI-THEOR/General/FMod_files/aa-fm_rate.gif)
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Modulating Wave, fa, Varies the Rate of Change of fc
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![](FMod_files/aa-slope-det.gif)
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Slope Detection
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![Single Sideband Modulation](FMod_files/aa-ovrmod-fm.gif)
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An example of "Over Modulation"
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Unlike A.M., in F.M. Over Modulation is a relative quantity; the signal is said to be Over Modulated if the signal deviates beyond the bandwidth of a particular Receiver.
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