this post was submitted on 18 Sep 2024
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Doctors that work in hospital bunkers? Do pagers not use cellular signals?
Hospitals are practically faraday cages, it can be hard to get a signal in large hospitals.
But a text message that amounts to just a few bits can usually sneak through without much delay.
I was thinking it had more to do with the use of the 900MHz band which has advantages in the penetration of certain materials compared to higher frequencies but I'm not an expert.