Frequency changes of Voice of Tibet

TIBET(non)   Frequency changes of Voice of Tibet
1230-1245 NF 15552 DB  100 kW / 131 deg to CeAs Tibetan, ex 15557
1245-1300 NF 15558 DB  100 kW / 131 deg to CeAs Tibetan, ex 15568
1300-1315 NF 15563 DB  100 kW / 131 deg to CeAs Tibetan, ex 15568
1315-1345 NF 15542 DB  100 kW / 095 deg to EaAs Chinese, ex 15543
1315-1330 NF 15563 DB  100 kW / 131 deg to CeAs Tibetan, ex 15568
1330-1345 NF 15563 DB  100 kW / 131 deg to CeAs Tibetan, ex 15568
All frequencies are jammed by China on xxxx0 / xxxx5
Changes between frequencies vary from 5 to 7 minutes