These are used to keep the wild grass down at Wicken Fen.
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.
Using my invisible earth electrode “antenna “ in the ground 265 stations were spotted . Nothing yet from across the Atlantic.