you don't need to ground it i don't think. it will just create a "hole" in the radar's vision. Imagine holding a dental mirror in front of your eyeball. you ne

you don't need to ground it i don't think. it will just create a "hole" in the radar's vision. Imagine holding a dental mirror in front of your eyeball. you need a faraday cage to prevent any signal from getting in or out; but that's not the goal here. this is more like sticking a piece of tape on your laptop camera.