The Intrusion Detection System in Which a Pattern of Radio

question 376

Multiple Choice

The intrusion detection system in which a pattern of radio waves is transmitted and partially reflected back to the antenna is known as a(n) :

• A) Capacitance detection system
• B) Ultrasonic detection system
• C) Vibration detection system
• D) Electromechanical detection system
• E) Microwave detection system

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