VLF upconverter

There is a VLF upconverter on the DXexplorer website. On Christmas Eve there is a special transmission from the historic alternator 17.2kHz  CW transmitter SAQ in Sweden.

See https://en.wikipedia.org/wiki/Alexanderson_alternator .

See also https://alexander.n.se/en/

Please note, this converter is fine for a peek "down there", but amateur signals usually are weak and need very high stability, very accurate frequencies and very narrow bandwidths. Details of my own VLF experiments are on my main website.

New DX Explorer video

 

There is new video on the PY2OHH inspired Pititico transceiver on the DX Explorer YouTube channel.

The Pititico is a really simple 1 transistor transceiver.

See https://yo6dxe.com .