>> It's useful to find hidden cameras, wiretapping devices, and other RF-enabled devices. Nope. It is used to find RF-emitting devices, the sort of low-sophist

>> It's useful to find hidden cameras, wiretapping devices, and other RF-enabled devices. Nope. It is used to find RF-emitting devices, the sort of low-sophistication stuff you can buy online for real-time continuing surveillance. For many decades, the real spy stuff has operated in burst mode: collecting data quietly and only transmitting it at an agreed time or in response to an external signal. To detect them you need to be monitoring 24/7 with a rig capable of triangulating signals that might only last a second or two.