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"Wi-Fi HaLow ... uses 900 MHz spectrum to send data over as much as a kilometer"
https://staceyoniot.com/wi-fi-halow-is-now-certified-and-ready-for-action/
We once had a wireless connection 20 KM away. Dunno how they did it but it was fun
@lupyuen Super exciting! I had a professor who was running a research project on this.
