Comment by Gigachad
16 hours ago
Because they are toys. For real work it makes so much more sense to use the internet. With the new satellite tech you can reach the internet everywhere.
Mesh radio is a fun way to chat with radio nerds in your area. Not a serious infrastructure.
So what’s the real solution for when Starlink is too expensive and too high power? I really want to solution for remote mountaineering communication that’s not just GMRS. And what about remote weather sensors? I really don’t need a full internet connection just to send a tiny payload every 5 minutes.
Meshtastic should be the obvious answer for this but in my limited experience the app(s) and code are buggy on even the most typical hardware. Wish it wasn’t the case but it is.
Depends what exactly it is you want. But phones these days can communicate with satellites for emergency messaging.
I think people need to think more about what the actual scenario they have in mind is because it seems most people think of mesh radio as some backup for the government shutting the internet down. When in reality it’s almost useless for that since it’s so easy to jam or flood mesh radio.
We may see a day when the internet is not available, or when interacting with it represents an unacceptable risk. It's a good idea to know how to set up your own.
In that day whatever is jamming starlink will just jam mesh radio too. It'll likely be even easier.
It's a different jamming scenario however. Starlink is comparatively centralised, and reliant on both terrestrial (ground stations) and satellite communication. While the terminals themselves are sparse and widely distributed, the backbone infrastructure is far less so. It's possible to target the satellites, ground stations and critical service dependencies (e.g. GPS) rather than needing to target the hundred of thousands/millions of terminals directly.
The mesh networks are dealing with, by definition, a sparse and widely distributed set of devices which are independently configured and controlled, and in their current widely available form are only dealing with terrestrial communication. Without that point of centralisation you would need to focus on targetted regional jamming, as from a practical standpoint you cannot perform wideband RF jamming over an entire country - signal jammers don't scale that well, and geographic features come into play. As an example you might effectively block mesh networks from operating reliably in a given city, but if people were to move outside of that area then the mesh would operate again. Geography is both a strength and a weakness here: a mountain range will impede direct communication with someone on the other side, but it will also have the same effect on jammers which will vastly increase the cost to deploy them in a ubiquitous fashion.
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That’s really the killer for survivalist mesh ideas. It’s trivially easy to jam, and if it’s open it’s also easy to DDOS.
Jamming is done in military scenarios too, but in that case it’s limited by the fact that a jammer is a big transmitter painting itself with a big sign that says “fire missile here.” Civilian mesh doesn’t have that fallback.
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> not a serious infrastructure
I've been tinkering with the tech to make city-wide flrc meshes joined together over the internet, my estimates are that it should be at least able to support thousands of users per region.
This has been tried with mqtt bridges in Meshtastic. But it’s ultimately kind of pointless because if you are planning some kind of internet alternative, you don’t want to build something that falls over the moment the internet goes down.
I know, I'm not too worried that I can't reach Billy in Ottawa, but you should still be able to text your mother six blocks away. /shrug
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