WRN Worldwide Radio Network 738 kHz.
it seems that some test transmissions are planned on 738 kHz next week:
https://dxforum.ru/viewtopic.php?f=8&t=511&sid=5c41512c206e121ad50711586bc9253e
Receptions reports are welcome, you can write them e-mails:
http://wrn.ru/letters.html
Marco (2021-04-11)