JAPAN
Radio NIKKEI announced in their HP http://www.radionikkei.jp/news/denpa.html that they will reduce the frequencies after October 1, 2018, for the stability and effectiveness of the management.
They say the diffusion of internet listening by PCs or portable phones on http://radioko.jp is another reason.
The schedule after October 1 is as follows;
1st program
2200-1500 6055 (Nagara transmitter site JOZ2 50 kW)
2200-2300 0800-1500 3925 (Nemuro transmitter site JOZ4 10 kW)
2nd program
2300-1000 6115 (Nagara JOZ6 50 kW)
1000-1400 3945 (Nagara JOZ5 50 kW)
9595 kHz (Nagara JOZ3 50k W) will be out of service but will be preserved for emergency use, 9760 kHz (Nagara JOZ7 50 kW) and 3925 kHz (Nagara JOZ 50 kW) will be discontinued. Transmitters in Nagara site are all NEC HFB-7847, installed in 1980-82 except JOZ5 (NEC HFB-7840D) in 1991. Transmitter in Nemuro site (JOZ4 3925 kHz) is NEC HFB-7840C installed in 1996.
(Takahito Akabayashi, Tokyo, Japan, July 6, DX LISTENING DIGEST)