VLF earth-mode transmitter

Before my 2013 stroke I enjoyed experimenting with VLF. Quite a few European amateurs were copied. This required special software, very narrow bandwidths and very long integration time. Casual listening does not work with very weak amateur signals!

In TX I was restricted, but did some useful experiments with VLF earth-mode. Best DX with 5W QRSS was 6km.

See https://sites.google.com/site/g3xbmqrp3/vlf/8-97khz-earth-mode-transmitter