alt Hacker NewsMesh radio bandwidth is pretty poor. Firstly, you have to compete with many interferers (albeit this might get better if the power goes down), including other LoRa radios, but more to the point, long-distance connections consume bandwidth and aquire delay and delay variation at every intermediate hop. It might be reasonable to use it for text messaging, but with per-hop bandwidth ranging from 0.3 kbps to 27 kbps, which will get divided down further over shared multi-hop links it will be impractical to use it for anything else except perhaps very-low-bandwidth telephony over short distances or visiting minimalist text-only websites.
It might make more sense if augmented by fixed multi-megabit point-to-point microwave radio links to act as a backbone, with LoRa only functioning as an access network.
I'd be interested to hear what experiences people have had with doing this for real.
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I've just realised I've talked my way into the idea of creating per-city club-operated backbone networks based on something like 100 Mbit point-to-point Ethernet-over-microwave links. With tall buildings as hubs, you might actually be able to build a decent mesh, with WiFi, LoRa or both acting as access networks. You'd definitely want to throttle per-client bandwidth to prevent people from abusing your very limited long-range mesh bandwidth. None of this would be cheap; decent microwave links cost thousands, and you'd need backup solar and battery power for every part of the network.
I'd also consider thinking about using the "big ears, small mouth" technique to push up bandwidth; if a fixed link using a technology such as LoRa could transmit at a legal EIRP level, but coupled this with a really high gain parabolic dish (I'm thinking re-purposed satellite dishes) and low-noise amplifier at each end on the receive side, you could get substantially higher end-to-end Eb/No, and thus much higher bandwidth and range than would otherwise be legally possible. At first glance, the necessary hardware to do this looks quite doable, either by active RF switching between antennae, or the use of a hybrid/circulator to do the necessary duplexing. I'd be interested to see if anyone has already built, or even manufactures, something like this, and what the practical and regulatory barriers are to implementation.
That's true and proprietary modulation makes the situation worse.
I think the point of the article is not to use that mesh network as a replacement for internet. I think the author's idea is that the mesh network would provide the "resilience club" a communication channel while they work on recovering the regular internet.