is an LF-time signal transmitter at Tamura-City, Fukushima-ken, Japan used for transmitting the time signal JJY on 40 kHz. The Otakadoyama site is one of two JJY transmitters, another is the Haganeyama site.
Summary Source: NAME：NICT Ōtakadoyayama LF station Location：Summit of Mt. Otakadoya, Tamura-City, Fukushima-ken Elevation：about 790m Latitude：37°22'21.0"N Longitude：140°50'56.0"E License：NICT Station purpose：Transmitting the official Japanese government frequency standards and time signal Frequency form：250H A1B Frequency：40kHz Antenna power：50kW（Antenna efficiency: about 45%） Antenna form：Umbrella type 250m high Operation time：continuously Operation start：1999/06/01 Range：About 1,000 km Transmission method :
See also Haganeyama Transmitter
References
External links http://jjy.nict.go.jp/jjy/trans/index-e.html