Which of the following is a drawback of using wireless CCTV systems?

The draw of using wireless CCTV systems primarily lies in the potential for signal interference. In wireless setups, the video signals are transmitted through the air, making them susceptible to disruptions from various sources such as other wireless devices, physical obstructions, or environmental factors. This interference can lead to degraded video quality or complete loss of signal, which can significantly compromise the effectiveness of the surveillance system.

In contrast, aspects like installation costs or dependence on wired networks do not apply in the same context for wireless systems. These systems typically offer easier installation and do not require extensive wiring, which can lower installation costs compared to traditional wired systems. Additionally, mobility is one of the advantages of wireless systems, allowing cameras to be placed in locations without the constraints of cabling. Therefore, the potential for signal interference is a significant drawback in the deployment and reliability of wireless CCTV systems.