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.
4 Mar 2021
Amateur VLF
The photo shows the signal from Germany on sub 9kHz. It was taken in 2011. Amateur VLF DX requires very stable signals, very narrow filters and long integration periods. Integation periods are hours or even days so casual listening will not work!!
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