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This non-powered passive dish focuses cell phone signals to the nearest tower

Was researching ways to communicate when cells don’t work. (Lots of prepping uses, but I was particularly thinking about the recent unrest where gov shuts down signal to protestors.)

Found this and thought it was cool. You put your phone inside of the cradle and that turns it into a hotspot in the middle of nowhere. The tool itself uses no power. So I’m guessing it’s just a signal amplifier. Anyone knowledgeable know how valid this is? Is it or something like it a possible communications prep?

cradle

Here’s where I found it

Cell phone hotspot in Australia. Set your phone on the post, dish focuses the signal to the nearest tower. 100% passive, tool itself uses no power. from ThatsInsane

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