this post was submitted on 25 Sep 2024
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How does this differ from walkie talkies?
It is text-based only. And since it's such a small amount of data, it can be transmitted a much longer distance.
There's also the Mesh part where if two nodes (radios) are too far apart, and another node is in between, it can act as an intermediary/relay to increase distance. You can use ~4 nodes (3 hops) in this way.
Communications are also encrypted.
Is 4 nodes the maximum able to connect?
Not sure what you mean by "connect". You can connect hundreds of them in a mesh network (although the network will eventually become saturated if you don't adjust), but message delivery is typically electronically limited to 3 "hops" for any particular message.