railway RRB JE (CBT I + CBT II) Mock Test 2024 Communication Systems Amplitude Modulation Conventional Amplitude Modulation
If fc is the carrier wave frequency and fm is the modulation frequency, then in the resulting amplitude modulated waveform the upperside band consists of:
1
\(\frac{f_c}{f_m}-2f_m\)
2
fc + fm
3
fc - fm
4
fc + 2fm