Long Range Microwave

Bass Straight

Flerfs have claimed this is somehow impossible on the globe, of course they didn't even attempt the geometry. Turns out it's not a problem at all without refraction.

https://www.telstra.com.au/aboutus/media/media-releases/ericsson-and-telstra-achieve-world-first
https://www.channelnews.com.au/telstra-builds-microwave-link-across-bass-strait/

Microwave transmission is old technology from the 1930s, with line-of-sight starting around the 1960s and 1970s. It therefore came as a surprise when Telstra announced it was using this technology for a super fast communications link from King Island in Bass Strait to the Victorian mainland. It runs north-south from Cape Wickham, at the northern tip of King Island, to Mt Cowley, west of Lorne, in Victoria – a distance of 116km.

Having a line-of-sight connection over such a long distance where the earth noticeable curves sounds difficult. But things are helped by the terrain. Mt Cowley on the mainland is 659 metres high. It’s a high point in the Otway Ranges, and it already has a very tall fire tower with microwave units attached to the side. Cape Wickham on King Island is the nation’s tallest lighthouse, at 48 metres high.