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UHF does not, even allegedly, bend with a 'curve of the earth'. In fact, it says specifically that it is 'radio line-of-sight'.

Link to main article:
https://www.thethingsnetwork.org/article/new-lora-world-record-1336-km-830-mi

Secondary article:
https://www.electronicdesign.com/markets/automation/article/21806072/11-myths-about-lorawan


At least try, globies.