Frequencies logged so far:
This net is idling 24/7 on « MARK » tone on many freqs at same time.
The MARK tone is located -125Hz from the zero beat, so freqs = xxxxx.625Hz.
This net has some silent periods from time to time but it can be easily identified because of the specific glitches heard on the tone carrier (as shown on the above screenshot) and with the .625Hz steady tone.
PS: Russian origin has been determined by an unique HFDF (direction finding) check by a German guy.