Question:
The range of a communication system can be extended by a
The range of a communication system can be extended by a
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Repeaters = boosters for long-distance communication.
Updated On: May 2, 2026
- modulator
- transmitter
- demodulator
- receiver
- repeater
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The Correct Option is
Solution and Explanation
Concept: Signal attenuation and amplification
---
Step 1: Problem in communication
• Signal weakens over distance (attenuation)
• Noise increases ---
Step 2: Role of repeater
• Receives weak signal
• Amplifies and regenerates it
• Sends it forward again ---
Step 3: Why others are incorrect
• Modulator → encodes signal
• Transmitter → sends signal once
• Receiver → receives only
• Demodulator → extracts information --- Final Answer: \[ \boxed{\text{Repeater}} \]
---
Step 1: Problem in communication
• Signal weakens over distance (attenuation)
• Noise increases ---
Step 2: Role of repeater
• Receives weak signal
• Amplifies and regenerates it
• Sends it forward again ---
Step 3: Why others are incorrect
• Modulator → encodes signal
• Transmitter → sends signal once
• Receiver → receives only
• Demodulator → extracts information --- Final Answer: \[ \boxed{\text{Repeater}} \]
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