unusual 3 dots, or better a slight long dot plus two dots, endless sequence.
Timing similar to The PIP.
Further analysis follow.
--- update ---
1) from UTwente 24h plot the signal was there from about 17.30z to 03.40z
2) VOACAP simulation and signal level plot suggest that emission could be from Central Ural area ( Perm ? )
--- audio analysis follow ---
