MODANALOG

Modulasi ,[object Object],[object Object],MODULATOR e m (t) e MD (t) Ec(t) = Ec sin (  c t +  ) Isyarat pembawa

Jenis-jenis Modulasi Ec(t) = Ec sin (  c t +  ) Modulasi amplitude (amplitude modulation,AM) Modulasi sudut (angle modulation) Modulasi frekuensi (frequency modulation, FM) Modulasi fase (phase modulation, PhM) (  c t +  )

Modulasi Amplitude ,[object Object],[object Object],[object Object],[object Object],[object Object],m(t) V c (t) V AM (t)

Modulasi Amplitude (lanj.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Modulasi Amplitude (lanj.) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Modulasi Amplitude (lanj.) ,[object Object],[object Object],[object Object],fm fc fc - fm fc fc + fm

Modulasi Amplitude (lanj.) ,[object Object],[object Object],fc fc + fm

Demodulasi AM ,[object Object],[object Object],[object Object],[object Object]

Power Relationship rms value Power into 1 ohm of resistance carrier Two sidebands

[object Object],Power Relationship (lanj.)

[object Object],[object Object],Power Relationship (lanj.)

Modulasi Frekuensi ,[object Object],[object Object],Frekuensi sesaat f i = f c + k.e M (t) MODULATOR FM e m (t) e FM (t) Pembawa e c (t) = Ec cos ( 2  f c t)

Persamaan Isyarat FM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],Persamaan Isyarat FM (lanj.)

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