Shortwave oddity, "Alarm", 6911 kHz, USB mode, 22 September, 2024 0335 UTC

This is an unknown source shortwave oddity, transmitting on known Russian military frequencies. This frequency, 6911 kHz, USB mode, has recently been occupied by a ticking sound that some hobbyist have called the "Stalingrad Clock". But, sometimes other sounds are heard, such as this alarm sound.
Some listeners think this is pirate, other listeners think it is a channel marker, and still others think it is PSYOP. I do not know, but I lean towards the Channel Marker set.
Note that the repeating alarm sound is interrupted about every 32 seconds. this may mean that it is a ~32 second repeating loop.
Recorded using the WebSDR at the University of Twente, NL, 22 September, 2024, at 0335 UTC.
Disclaimer: Many of the radio reception recordings on this KZbin channel pertain to unusual, uncommon, unknown, or mystery signals that might be found on radio, both shortwave and VHF/UHF. Among the subjects covered are numbers stations, utility stations, military transmissions (both in the clear and encrypted / encoded), aviation, maritime, ham radio, CB radio, radars, ionosodes, propagation beacons, ditters, dashers, whistlers, and just about anything else that might transmit, in any mode, USB, LSB, CW, Morse Code, FM, AM,FMCW, LFMCW, etc. Think of it as SIGINT (signals intelligence) / COMINT (communications intelligence) / ELINT (electronic intelligence) lite, the hobby version. All the recordings are made by me, most often at my home. Although there are a few mysterious things to be found here, you will not find anything paranormal, extraterrestrial, spiritual, or mystic. However, everyone can have their own interpretations of the sounds heard, make of it what you will.

[@Nikolas_GQ]

Pirate mainly uses it. Name is Stalin Ticking Clock. (Well what a lot of people say) What I call it is Pirate Tennis Match Two main sounds an Alarm and a Clock ticking like sound. (Clock is more common to hear)

[@PunishedBeerCanBennyIV]

Checked that today on utwente at 18:00 pst, got the clock version. It seems a bit overkill in a way to be a channel marker, but I see no other reason for it so it probably is that. Russian army just has weird radio etiquette