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 Suggest a possible communication channel for the transmission of a message signal that has a bandwidth of 200kHz.
  • a)
    TV transmission
  • b)
    Optical fiber
  • c)
    AM radio
  • d)
    FM radio
Correct answer is option 'D'. Can you explain this answer?
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Suggest a possible communication channel for the transmission of a mes...
The correct answer is option 'D' - FM radio. FM radio is a suitable communication channel for the transmission of a message signal with a bandwidth of 200kHz. Here's an explanation of why FM radio is the best choice:

Frequency Modulation (FM) Radio:
- Frequency modulation is a technique where the frequency of the carrier signal is varied in proportion to the message signal.
- In FM radio, the audio signal (message signal) is used to modulate the frequency of the carrier signal.
- FM radio offers high-quality sound reproduction and can transmit a wide range of audio frequencies.

Explanation:
1. Bandwidth Requirement:
- The bandwidth of a communication channel represents the range of frequencies it can transmit.
- In this case, the message signal has a bandwidth of 200kHz, which means it contains frequencies ranging from 0Hz to 200kHz.
- To transmit the complete message signal without distortion, the communication channel must have a bandwidth equal to or greater than 200kHz.

2. TV Transmission:
- TV transmission typically requires a much higher bandwidth than FM radio.
- TV signals carry both video and audio information, resulting in a larger bandwidth requirement.
- TV transmission channels typically have a bandwidth of several MHz, making it unsuitable for a 200kHz message signal.

3. Optical Fiber:
- Optical fiber is a high-speed transmission medium that uses light signals to transmit information.
- Optical fiber can provide extremely high bandwidth and is commonly used for long-distance data transmission.
- However, the bandwidth of optical fiber is typically in the range of several GHz, far exceeding the 200kHz bandwidth requirement of the message signal.
- Therefore, using optical fiber for transmitting a 200kHz message signal would be inefficient and unnecessary.

4. AM Radio:
- AM radio (Amplitude Modulation) is another commonly used communication channel.
- In AM radio, the amplitude of the carrier signal is varied in proportion to the message signal.
- While AM radio can transmit audio signals, its bandwidth is typically limited to a few kHz, making it unsuitable for a 200kHz message signal.

5. FM Radio:
- FM radio (Frequency Modulation) is well-suited for transmitting a message signal with a 200kHz bandwidth.
- FM radio can provide a wide frequency range, allowing for the transmission of high-quality audio signals.
- The bandwidth of FM radio stations typically ranges from 150kHz to 200kHz, which matches the bandwidth requirement of the message signal.
- Therefore, FM radio is the best choice among the given options for transmitting a message signal with a bandwidth of 200kHz.
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Community Answer
Suggest a possible communication channel for the transmission of a mes...
The communication channel for the transmission of a message signal that has a bandwidth of 200kHz is FM radio. AM radio is the channel required for a message signal having a bandwidth of 5 MHz. Other options are not valid.
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Suggest a possible communication channel for the transmission of a message signal that has a bandwidth of 200kHz.a)TV transmissionb)Optical fiberc)AM radiod)FM radioCorrect answer is option 'D'. Can you explain this answer?
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