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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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What is the range of a device like this? Is there any chance of using a mesh system like that if you're not in a city? I'm about 30 miles away from a few towns, so there's little chance for repeaters to be nearby.
Theoretically you can get 50 ish miles or more with line of sight. In practice, you can get around 10 ish with repeaters. With around 30 devices, our city has effective coverage.
You also have options to use MQTT if you want to make sure a message gets through. But that requires an internet connection.