I want to mesure the wifi strength at home, and I want to do it with things I have. Here is my idea. I'm going to make an antenna with some wire, perhaps a metal coat hanger then hook it up to a multimeter then read the current. Firstly, I'm just not sure whats the best antenna design. Not sure if 1 or 3 would be best, also for 2 the rods are not connected but this wont work right? Secondly, what is the effect of different thickness wire. Thirdly, what metal would be best? I would think copper but most antennas I see are not made of it. Finally, will a wifi signal even be strong enough for a multimeter to detect the signal