Southgate News reports on a SARL report about terahertz amateur radio. Whilst a dedicated bunch have explored optical and infra-red frequencies few have tried the bands above 100GHz. I guess the reason is gear and test-gear are difficult. At optical frequencies, I found gear and test-gear easy. Apparently terahertz spectrum is being allocated at the 2019 WRC. This was news to me.
My apologies for referring to tetrahertz frequencies earlier. Now corrected. Shades of my work life long ago!
See http://southgatearc.org/news/2017/october/the-terahertz-spectrum.htm#.Wex7krpFzIU .
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