Andy Talbot wrote:

The first was G0MRF to somewhere in the US.  Lost in the mists of time
now, but a QRSS TA path came after that.

The first WOLF crossing appears to have been on 136 khz:


 *"18 Mar 2001:* W1TAG reported reception of M0BMU who was using the
 new BPSK mode WOLF."


First 73 khz TA:


 *"3 Jun 2001:* VE1ZJ identified characters from G3AQC's 73kHz
 transmission! This is the lowest frequency at which amateur signals
 have crossed the Atlantic.G3AQC, estimates his ERP at between 125 and
 140mW. He uses a 700W Tx to put 3.5A RF into a marconi antenna with a
 15m vertical section and a 200m horizontal top."

*19.03.01*

*21.11.01*

Above from:  http://136.73.ru/h_history/index.htm