Under which condition might you experience distortion while transmitting on FM?

Under which condition might you experience distortion while transmitting on FM?

• A. Improper antenna installation
• B. Low battery power
• C. Excessive modulation
• D. Signal propagation issues

Answer: (C)

Distortion during FM transmission primarily occurs due to excessive modulation. In Frequency Modulation (FM), the audio signal being transmitted varies the frequency of the carrier wave. When the modulation level exceeds the bandwidth of the transmitter, it causes the transmission to produce unwanted noise or distortion. This happens because the frequency shifts can become too extreme for the receiving equipment to properly decode, leading to a situation where the original audio signal is altered and not accurately represented. While improper antenna installation and low battery power can impact signal quality and strength, they do not specifically lead to the distortion characteristic of FM transmissions resulting from modulation levels. Similarly, signal propagation issues, like multi-path interference or fading, can affect the overall quality but do not directly relate to the modulation process itself. Therefore, the key factor that introduces distortion in FM transmissions is indeed excessive modulation, where the signal is pushed beyond its intended parameters.

Distortion during FM transmission primarily occurs due to excessive modulation. In Frequency Modulation (FM), the audio signal being transmitted varies the frequency of the carrier wave. When the modulation level exceeds the bandwidth of the transmitter, it causes the transmission to produce unwanted noise or distortion. This happens because the frequency shifts can become too extreme for the receiving equipment to properly decode, leading to a situation where the original audio signal is altered and not accurately represented.

While improper antenna installation and low battery power can impact signal quality and strength, they do not specifically lead to the distortion characteristic of FM transmissions resulting from modulation levels. Similarly, signal propagation issues, like multi-path interference or fading, can affect the overall quality but do not directly relate to the modulation process itself. Therefore, the key factor that introduces distortion in FM transmissions is indeed excessive modulation, where the signal is pushed beyond its intended parameters.