For the past few evenings UTC I have noticed a blank carrier on 900 kHz, spotted on SDR receivers in The Netherlands, UK, and Italy (Noale).  Carrier sign off time has been 2257 UTC. 

All of the usual Europe / Middle East occupants of the frequency are present before and after this sign off so this blank carrier does not appear to be one of the listed stations.

Evidence does not suggest that it is one of the part time NetherIands LPAM stations.  I wonder if one of the Italian private stations is testing on the channel but I have no data to confirm that.

Dave W. (2022-10-11)