Why AM stations has “low-fidelity”?(a) AM is susceptible to noise(b) Commercial AM stations use low power(c) Commercial AM stations have a narrow bandwidth(d) High quantization to noise ratioThe question was asked in an international level competition.This interesting question is from Demodulation of VSB Modulated Wave topic in section VSB Modulation of Analog Communications

Why AM stations has “low-fidelity”?(a) AM is susceptible to noise(

1.	Why AM stations has “low-fidelity”?(a) AM is susceptible to noise(b) Commercial AM stations use low power(c) Commercial AM stations have a narrow bandwidth(d) High quantization to noise ratioThe question was asked in an international level competition.This interesting question is from Demodulation of VSB Modulated Wave topic in section VSB Modulation of Analog Communications
Answer» Right option is (C) Commercial AM stations have a narrow bandwidth Easiest explanation: Fidelity is the ability of receivers to REPRODUCE all modulating signals eually. Low fidelity can be seen as sound recording that CONTAIN technical flaws to MAKE sound better compared with the sound that is recorded live. High fidelity refers to the equipment that very accurately PRODUCES without any harmonic or resonance. AM stations have low fidelity to have narrow bandwidth.

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