Reception of Radio Sultanate of Oman on 9620 khz September 2

OMAN   Reception of Radio Sultanate of Oman on 9620 khz September 2
1400-1500 on  9620 THU 100 kW / 315 deg to WeEu Arabic, not English
from 1500 on  9620 THU 100 kW / 315 deg to WeEu Arabic, good signal
from 1530 on  9620*THU 100 kW / 315 deg to WeEu surprise, NO SIGNAL
*at same time 9620 ALG 250 kW / 282 deg to WeAs Baluchi All India R.
https://www.youtube.com/watch?v=SCO633UEDYg&feature=youtu.be
https://www.youtube.com/watch?v=A3pO6WBPQfw&feature=youtu.be
https://www.youtube.com/watch?v=C2XAfRhN24I&feature=youtu.be