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A Closed-Circuit Television (CCTV) system is a private video network where signals are transmitted to a limited number of monitors, unlike broadcast television which is publicly accessible. These systems are primarily used for surveillance and security, allowing for monitoring and recording of activity in specific areas. CCTV signals, which can be live or pre-recorded, are typically transmitted via coaxial cables or encrypted radio waves.

While general CCTV systems are not subject to standard Federal Communications Commission (FCC) regulations, those utilizing scrambled radio waves for transmission must comply with common carrier tariffs and specific FCC service conditions.

What are the main components of a CCTV system?

A typical CCTV system comprises several key components working together to capture, transmit, and display video footage:

• Camera

  The camera is the primary device that captures images of an area. Most CCTV cameras require a separate lens, which is screwed onto the front of the camera body. A BNC cable is commonly used to connect the camera to the video system and often supplies power.

• Monitor

  The viewing monitor displays the images captured by the camera. While similar to a standard television, these monitors are specialized and lack the tuning circuits found in broadcast TVs.

What are the different types of CCTV systems?

CCTV systems come in various configurations, each suited for different needs and environments: