Radio Osaka (Osaka Broadcasting Corporation / JOUF) was logged on the medium-wave frequency of 1314 kHz. Japanese pop songs were observed from 17.00 till 17.40 UTC, on 4 September 2017. SINPO rated 13221 - weak signal with momentary peaks of clear audio, despite co-frequency interference from presumably Chongqing PBS (in Xinjiang, China). By 17.30 UTC, Chongqing PBS dominated the frequency, and OBC-JOUF was inaudible. Before 17.00 UTC, OBC-JOUF signal was impossible hear due to Thai station operating on the same frequency.