You’d still see static from the TV itself and any radiation that passed in to the cage. It’s not a perfect EM blocking device like TV shows and movies would have you believe.
Comment on What produced the old dead channel tv static audiovisuals on tvs?
admiralteal@kbin.social 7 months ago
If you put a TV in a Faraday cage that blocked the relevant radio spectrum, would there be no static on it? I expected the answer to be a quick Google, but it wasn't.
db2@lemmy.world 7 months ago
cmnybo@discuss.tchncs.de 7 months ago
Even if the Faraday cage blocked all RF perfectly, the Johnson noise would still produce plenty of static.
QuarterSwede@lemmy.world 7 months ago
Great experiment idea.
badcommandorfilename@lemmy.world 7 months ago
That is a good question, but I suspect if you tried this in real life it would still show static.
I suspect a better though experiment would be if you just disconnected the input and amplification circuit entirely from the CRT tube, in which case you would probably just get white as the electron beam scans back and forth without any modulation.
nehal3m@sh.itjust.works 7 months ago
Let me turn that around:
Would a TV still show static if you disconnected the input and amplification circuit outside a Faraday cage?
Septimaeus@infosec.pub 7 months ago
Likely a uniform white picture since the impedance of the input wire is too high for ambient noise on the line to result in any differentiated interlacing.
trolololol@lemmy.world 7 months ago
Input yes, amplification no
this_1_is_mine@lemmy.world 7 months ago
It would just make a dot center screen.