Reception of Voice of Vietnam HS-4 on 11720 via Sontay, August 11

VIETNAM   Very good signal of Voice of Vietnam HS-4 on 11720 kHz via Sontay, August 11:
from 0900 on 11720*SON 100 kW / 187 deg to SEAs Vietnamese via SDR So Phisal, Thailand.
* co-channel 11720 SZG 100 kW / 217 deg to EaAs Chinese CNR-1 Voice of China, weak/fair
https://www.youtube.com/watch?v=_Mb7xPgD-WI&feature=youtu.be