Many thanks to SWLing Post contributor, April TimeLady, who writes:
This is a collection of Japanese SDR recordings I made over the month of May. Labelling may be “off” and I can’t find sources for some of the call letters of the stations I’ve heard; WRTH is only so useful, but it is still very useful anyway. The recordings are also biased towards what I’m interested in, which means mostly music programs, NHK programs, shortwave programs. Available in .wav, .mp3 and .flac.
April also asks:
“Does anyone know the call letters of the NHK shortwave transmitters located in Japan itself. Or the call letters for the Issoudun and Nauen shortwave complexes?
I’ve tried googling the answers for the first question in Japanese and the answers have been less than useful, most likely due to the kanji barrier.”
If you can help April, please comment!