13 Mar 2021
Optical communications
Many years ago I did some experiments with optical communications over the horizon (NLOS). See the photo. This appeared as a FB memory today.
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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.
We live about 15km from airbases used by the USAF. In the last couple of days these appears to be an increase in air traffic.
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