I want to experiment with radio waves in the 100 to 200 mhz frequency range. However, I know that it is illegal to broadcast a signal without permission.
So, I'm wondering if I can build a faraday cage around the room I'm experimenting in, and thereby block the signal from escaping, and hopefully not be breaking the law that way.
Furthermore, I'm wondering if I can do so inexpensively? Could I coat the inside of the room in tin foil, then ground the tinfoil to a lightning rod that I jam deep into the ground outside? Would that be enough?