You know, when my wife opens up a webrowser on her phone and it starts transmitting this device triggers. When I go next to a wifi camera and it picks up the R

You know, when my wife opens up a webrowser on her phone and it starts transmitting this device triggers. When I go next to a wifi camera and it picks up the RF, it triggers. Demonstrably it does detect signals. You clearly don't understand the basics (very easy).