By the First World War it was already old technology.
22 Sept 2022
Marconi pre-WW1 radio station
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Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.
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https://ko-fi.com/rogerg3xbm
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Featured post
10m QRP FT8 (Wednesday)
My gear was turned on at breakfast. With a 12V supply it produces 3.4W so with my diodes in the supply line I think (at most ) my output is...
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