Voice of Vietnam was logged by Hiroyuki Okamura in Japan on 16th April, 2018 , testing on MW 675 kHz, signal was weak in Japan however from the video it can be noted that they are transmitting three audio channels :
VOV1- Radio
VOV2- Radio
VOV3- Radio
Video at : https://youtu.be/7kQ30INxqLk
The signal was strongest at around 1350 UTC, SNR was 11.2 db - 11.3 db
