Wireless Security Cameras How does a wireless camera system work and what are the advantages and disadvantages of wireless CCTV systems? There are specific details about wireless surveillance cameras that you should know before buying one. Wireless security cameras utilize radio waves (in the 2.4 GHz range for most consumer security cameras) to transmit video as radio waves which are picked up by a receiver. The radio waves are then converted back into a video signal that can then be monitored and recorded by a DVR. Wireless security cameras offer the advantage of being able to transmit surveillance video over a distance through the air, however, these systems are not without drawbacks. Watch this video on wireless security cameras to learn more about this relatively new technology in CCTV.