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Christian Lacdael | 1 months ago (raw) | root | parent | reply | flag 
 Do you know any good reference material for packet radio?

I read the standard a while ago,  but it didn't click with me.
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Dr. Hax | 1 months ago (raw) | root | parent | reply | flag +1 
 I went through the free LoRa/LoRaWAN training from Semtech a couple years ago and it was very good at explaining how it works to non-experts.

https://learn.semtech.com/

IIRC, you might have to look up videos on thinks like OOK or preambles to understand those parts, but that's easy once you know what to look for and have the context of how it is used.
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Christian Lacdael | 1 months ago (raw) | root | parent | reply | flag +1 
 I mean the ax-25 packet radio protocol still used by some ham radio enthusiasts.

It went out of fashion, but its certainly not tied to a manufacturer. Something to consider.

That said , all the lora chips I use are chinese clones

https://en.m.wikipedia.org/wiki/AX.25