RF Detection

WiFi detectors are small gadgets that claim to detect wireless access points for computer networks. The effectiveness of these devices is already covered in many Internet articles, but here you will find out exactly how they work. To begin with, we opened the first device we had to hand.. It was immediately apparent that it used a fairly large number of components. Apart from a large section of passive components (resistors, capacitors and inductors) we counted five transistors and three ICs. All components, apart from three LEDs, were surface mounted. On the other side of the double-sided PCB were two watch batteries.