Frequency change of Voice of Tibet in 41mb, April 4

TAJIKISTAN(non)   Frequency change of Voice of Tibet on April 4:
2300-2307 on  7494 DB  100 kW / 131 deg to CeAs Tibetan unchange
2307-2330 NF  7499 DB  100 kW / 131 deg to CeAs Tibetan, ex 7486
2330-2335 NF  7484 DB  100 kW / 131 deg to CeAs Tibetan, ex 7492
2335-2400 NF  7476 DB  100 kW / 131 deg to CeAs Tibetan, ex 7496
https://www.youtube.com/watch?v=B1T3wNPx_1A&feature=youtu.be
https://www.youtube.com/watch?v=AdU1bWB6474&feature=youtu.be
https://www.youtube.com/watch?v=W_Qbm5qUo4s&feature=youtu.be
https://www.youtube.com/watch?v=j8vVpRvz0pw&feature=youtu.be