This new video shows how a WiFi camera can be jammed by another wireless device. I produced it for my last talk at the office, illustrating the concept of availability in secure systems.
A WiFi camera, operating on channel 1, is streaming video. When I switch on an analogue, wireless babycam, you see a strong signal appearing near channel 9 (watch the SPECTRAL VIEW of the Wi-Spy spectrum analyzer, e.g. the window in the upper-left corner). After some time, I switch the babycam to a channel near channel 1 of the WiFi camera. Now the transmission of the babycam jams the transmission of the WiFi camera, and we lose connectivity.
Powering off the babycam restores the WiFi connection.