NHK-1 (JOAP) in Okinawa Prefecture was heard on the medium-wave frequency of 549 kHz, under poor but audible conditions, rating a SINPO of 14221. Despite severe scratchy atmospheric noise, a Japanese language broadcast of Japanese pop songs, hosted by a male announcer, was observed from 17.05 till 17.30 UTC, on 7 September 2017. On nights when propagation is bad, the signal is detected but with no discernible content. That's not bad actually for a 10 kW station out of Japan.
Reception report was posted to NHK-1/JOAP and emailed (to NHK World Radio). QSL card, station mascot stickers and postcards/programme guide of popular Japanese TV drama arrived in the mail on 20 October 2017.