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This Tiny Radio Lets Me Send Texts Without Wi-Fi or Cell Service
(www.howtogeek.com)
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this post was submitted on 27 Jul 2025
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Can you message random people or have to already know their contact info?
It is channel-based, using Pre-Shared Keys (PSK).
There is a public line where you can message pretty much everyone with the blank PSK.
Oh, now that sounds fun