This caught my attention recently. I'll be looking more into it.

https://changelog.complete.org/archives/10042-long-range-radios-a-perfect-match-for-unix-protocols-from-the-70s

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IIRC I've 4 HC-12 and 2 LORA transceivers, all in the 433MHz band,
collecting dust in my electronic sediments. So far the show stopper
even for tests was that I would need to split to be on both ends of the
test and that's impractical.
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