Set an overnight recorder on 4755.0, but unfortunately left it on USB. In the audio I noted a het coming out of the mud around 0800. Got down to the RX at 1100 and went to AM, 4755.51kHz. Weak YL talk to about 1142, spiritual mx till I shut down at 1155. Missed the TOH tones, but tentatively looks like the one.
Thanks for the tip, and we will keep trying.