Wireless P2P with no line of sight

Hi,

I have two houses 1.8 KM apart. The land is not flat. The elevation of one house is 90.3 meter or 296.1 feet. Another is 60.1 meter or 197.1 feet. Is it possible to connect the two houses?

The left starting point is at 60 metres and right ending point is at 90 metres. The house at the right end is a two level building. The house on the left starting point is a one level house. There no high rise buildings or mountains in the path.

Thanks

Jake He
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