Not to say they don't fill a niche, but bandwidth and range limit it's viability to small operations; even an optimal network cant handle more than a few hundred tweets per hour.
I've done a number of projects with commercial radios operating in the 902-928MHz unlicensed band and typically we target 1-10 mi (roughly 1-20km). Elevated antennas with enough gain to get you to the legal limit (4W EIRP) can get you a heck of a lot of range, even without line of sight.
With line of sight, communication to the horizon is possible.
If you're talking about the EU 869 MHz unlicensed band used by LoraWAN, thats quite a bit different and I'm less familiar.
Something that can also use devices we already have seems like a better solution. I'm surprised BitChat has not seen more popularity. Something that combined that + a dedicated hardware mesh transmitter (for longer range when needed) and allowed adhocactual network use between devices would be pretty damn cool.
Also arent LoRA systems mostly still line of sight?
Never had a peep from it. 0 connected peers, always -- in every environment.
This leads me to believe that it either does not work, or that I am the only one using it (in which case it also does not work).
They already have it because they ready HN! Only somewhat fascitious... A few motivated individuals can provide connectivity to thousands. There's probably a few such folks in your city already!
> Something that combined that + a dedicated hardware mesh transmitter (for longer range when needed) and allowed adhocactual network use between devices would be pretty damn cool.
This is exactly how these systems tend to work in practice. Just connect your phone via Bluetooth then use the Meshtastic app. The app can function on it's own to send messages to other phones without cell service, you just won't get the range.