In order to deal with the electric power shortage caused by nuclear power plant accident, Radio Nikkei 2nd broadcast continues to suspend its weekday transmission. They only air a test signal from 23:00-23:25 UTC on weekdays Japan time. At present, they air from 23:00 through 09:00 UTC only on Saturdays and Sundays on 3945, 6115 and 9760 kHz. Radio Nikkei’s 1st broadcast is aired from 22:25 through 15:00 UTC on weekdays, and from 21:55 through 12:00 or 12:30 UTC on weekends. Frequencies for 1st broadcast are 3925, 6055 and 9595kHz.
(Source : Mr. Toshi Ohtake, Japan Short Wave Club via JSWC Bulletin)