What does "analog video" refer to in the context of CCTV?

The term "analog video" in the context of CCTV pertains specifically to video that is transmitted as a continuous signal. This means that the information is sent in a waveform, in contrast to digital video, which is composed of discrete values. Analog video traditionally travels over coaxial cables, which are designed to carry the continuous signal effectively over distances. This method allows for real-time transmission of video footage from cameras to recording devices or monitors.

The significance of using coaxial cable for analog video transmission lies in its ability to maintain signal integrity over longer runs, making it a reliable choice for many traditional CCTV systems. Moreover, analog video does not incorporate data compression or digital encoding processes, which is characteristic of digital systems. Thus, the nature of analog video technology is foundational in the understanding of how older CCTV systems operate and is essential for those working with or learning about these systems.

The other options describe different scenarios that do not accurately depict what analog video is or how it operates within the context of CCTV systems. For instance, cloud storage and digital systems are not characteristics of analog video, as they relate to the transition to digital technologies. Similarly, the presence or absence of sound does not define whether a video signal is analog; sound can be included in both analog