Which function of the receiver converts electrical signals from radiofrequency to video form?

Which function of the receiver converts electrical signals from radiofrequency to video form?

• A. Demodulation
• B. Amplification
• C. Compensation
• D. Rejection

Answer: (C)

Demodulation is the process that recovers the original video signal from the high‑frequency carrier. In a receiver, the incoming radiofrequency carrier carries the video information modulated onto it. The demodulator removes the carrier and extracts the baseband video waveform so it can be displayed. Amplification merely boosts signal strength and doesn’t recover the information. Rejection reduces interference but doesn’t produce the video signal, and compensation deals with correcting distortion rather than converting RF to video. So, demodulation is the function that converts electrical signals from radiofrequency to video form.

Demodulation is the process that recovers the original video signal from the high‑frequency carrier. In a receiver, the incoming radiofrequency carrier carries the video information modulated onto it. The demodulator removes the carrier and extracts the baseband video waveform so it can be displayed. Amplification merely boosts signal strength and doesn’t recover the information. Rejection reduces interference but doesn’t produce the video signal, and compensation deals with correcting distortion rather than converting RF to video. So, demodulation is the function that converts electrical signals from radiofrequency to video form.