Ōtakadoyayama Transmitter

Ōtakadoyayama Transmitter (おおたかどや山標準電波送信所, Ōtakadoyayama Hyōjun Denpa Sōshinjo) 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.

Antenna of Ōtakadoyayama Transmitter

Summary[1][2]

• 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: JJY

See also

• Haganeyama Transmitter