1575/3940 Komintern.
Someone in a Russian DX forum reports that 1575 kHz near Smolensk is the same station as 3940 kHz, that was receivable today and some days/weeks ago.
https://vcfm.ru/forum/viewtopic.php?f=6&t=78&p=153276#p153276
3940 kHz says it is pirate station.
Marco (2021-10-17)