Ukrainian MW transmitters on 657, 873, 1278, 1404 kHz have been off air since January 1. It seems that somebody decided to switch them on only upon improvement of the situation with power supply. Or at least allocation of some funds….
In addition, the transmitter in Kurisove (1278 kHz) has some technical malfunction according to a recent interview given by an ex-Vice-Director of the National Radio Company of Ukraine.
https://www.lrt.lt/ua/novini/1263/1860105/rosiia-zakhopliuie-chastoti-ukrayins-kogo-radiomovlennia-v-diapazoni-serednikh-khvil
Alex Miatlikov, Ukraine to MWlist iog (2023-01-23)