Question
Download Solution PDFWhich factor is primarily responsible for distortion in a transmitted signal?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe primary factor responsible for distortion in a transmitted signal is: 3) Variations in the propagation speed of different frequencies
Explanation:
Distortion occurs when different frequency components of a signal travel at different speeds, altering the signal's shape. Here’s why the other options are less accurate:
- 1) External electromagnetic interference → Causes noise (not distortion).
- 2) Signal attenuation → Reduces signal strength but doesn’t distort its shape.
- 4) Excessive bandwidth usage → May cause interference but isn’t a direct cause of distortion.
Key Point:
Frequency-dependent propagation speed (e.g., dispersion in optical fibers or group delay in RF systems) warps the signal waveform, leading to distortion.
Last updated on Jun 7, 2025
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