Meshtastic: Open-source, off-grid, hiking, climbing, GPS mesh communicator
So these are using LoRa (902-928MHz) as the actual frequency for text transmissions? This is really an exciting frequency that's been around for a while and has a lot of potential for disruption.Fun fact--there is a completed WiFi standard for this frequency (802.11ah / WiFi HaLow), but as far as I know, there have never been any chipsets made for it.