An amateur in Germany, DL3IKE, found this recently:
https://www.cia.gov/library/readingroom/docs/CIA-RDP78-03424A000400090001-9.pdf
22 Jun 2018
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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.
There have been Es openings in Europe on 10m and 6m, but nothing yet to suggest my 10mW ERP 8m WSPR would be copied. This is the power that ...
1 comment:
Looks like 136Khz should do well but my own earth rod tests at this freq never produced much of note, but I don't have the luxury of 100m spacing nor a well!
73 Ken G4APB
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