A couple of right angles not really make it light tight either.
I remember going caving and we would have to go 100m or more through many different turns before we all turned our lamps off and truly experienced perfect dark.
I remember going caving and we would have to go 100m or more through many different turns before we all turned our lamps off and truly experienced perfect dark.
A hole/leak in the metal wall of a Faraday cage is going to be a lot more reflective and can easily act like a crude waveguide[1].
[1] https://en.wikipedia.org/wiki/Waveguide_%28radio_frequency%2...