Most anyone on Hacker News should consider all of amateur radio. Morse Code is no longer needed for a license and it opens many more possibilities especially for disaster communications.

Those in the Bay Area should check out "The San Francisco Radio Club ( 1916 - 2020 ) Celeb rating 104 Years serving the city of San Francisco & the Community" < https://www.sfarc.org/ > They are a great bunch and are, as one would expect, very knowledgeable.