Frequency changes of Voice of Tibet, March 9

TAJIKISTAN(non)   Frequency changes of Voice of Tibet, March 9:
2300-2305 NF  7494 DB  100 kW / 131 deg to CeAs Tibetan, ex 7495
2305-2330 NF  7486 DB  100 kW / 131 deg to CeAs Tibetan, ex 7495
2330-2335 NF  7492 DB  100 kW / 131 deg to CeAs Tibetan, ex 7499
2335-2400 NF  7496 DB  100 kW / 131 deg to CeAs Tibetan, ex 7499
https://www.youtube.com/watch?v=k-VgZpY-XT0&feature=youtu.be
https://www.youtube.com/watch?v=OAAgQUNm1tU&feature=youtu.be
https://www.youtube.com/watch?v=_YTAoRsih7Q&feature=youtu.be
https://www.youtube.com/watch?v=AGTSB3Y24to&feature=youtu.be