Hi people I'm new to the Arduino world and this is my very first project, so please bear with me XD. I've been trying to build a sensor that can detect the electro-magnetic frequencies emitted by invisible dog fences. I've found tutorials on how to build EMF detectors and, so far, the one I've built is only able to detect the WiFi router from very up close.
Should I build a more sensitive EMF detector? If so, how should I make it more sensitive? If not what could I use? Thank you in advance!