• General

  • Request for Opinions on "Airplane mode is a Myth"

de0u
I hate to sound contrarian, but I think “are the receivers shut off in airplane mode?” is a pretty straightforward question, with a simple “yes” or “no” answer.

This is getting circular and redundant, so I will desist.

  • de0u replied to this.

      Blastoidea I hate to sound contrarian, but I think “are the receivers shut off in airplane mode?” is a pretty straightforward question, with a simple “yes” or “no” answer.

      The answer on the GrapheneOS web site is "Activating airplane mode will fully disable the cellular radio transmit and receive capabilities, which will prevent your phone from being reached from the cellular network". "Fully disable receive capabilities" means that cellular reception will not happen.

      As previously documented in this thread (de0u), in a modern cellular modem there aren't "receivers" as (Edit: discrete, separable) things. So no answer about "the receivers" can be answered in a meaningful way. It is as if the question were "Are the unicorns asleep in airplane mode?". There aren't any unicorns in a modern cellular modem. So I don't think anybody can answer whether the unicorns are asleep or not, not even to provide a "simple yes or no answer".

          heh..

          this is one of those topics which has "existed from the start".

          have watched people put phones in fridges along time ago..
          (almost knocking myself out with a face palm heh)

          one word; Schematics.

          Technical diagrams exist for a reason..

          In this context - they are not 'trade secret' IP..

          Progressing development of, anything really - doesn't go very far (or well) without collaboration - especially in the context of Electrical Engineering..

          Just like the unicorn reference (that was a good one, btw)..

          There is a middle ground between source code, and finding someone who doesn't just have specific high end equipment, but also an actual understanding of how to utilise it properly.
          (very much including an ability to accurately read the data, in this context)

          (also, have an image of 'ghost hunters' in my mind currently..?)

          The very term 'hacking' has its origins in this exact arena;

          Disassembling a physical device in order to learn and understand how it and its components work. :)