Otakadoyayama Transmitter (おおたかどや山標準電波送信所, ') is an LF-time signal transmitter at Tamura-City, Fukushima-ken, Japan used for transmitting the time signal

JJY JJY is the call sign of a low frequency time signal radio station located in Japan. The station broadcasts from two sites, one on Otakadoyayama Transmitter, Mount Otakadoya, near Fukushima, Fukushima, Fukushima, and the other on Haganeyama Transmi ...

on 40 kHz. The Otakadoyama site is one of two JJY transmitters, another is the Haganeyama site.

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* NAME： NICT Otakadoyayama LF station * Location：Summit of Mt. Otakadoya, Tamura-City, Fukushima-ken *

Elevation The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vert ...

：about 790m *

Latitude In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pol ...

：37°22'21.0"N *

Longitude Longitude (, ) is a geographic coordinate that specifies the east–west position of a point on the surface of the Earth, or another celestial body. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter l ...

：140°50'56.0"E *

License A license (or licence) is an official permission or permit to do, use, or own something (as well as the document of that permission or permit). A license is granted by a party (licensor) to another party (licensee) as an element of an agreeme ...

： NICT * Station purpose：Transmitting the official Japanese government frequency standards and time signal * Frequency form：250H A1B *

Frequency Frequency is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as ''temporal frequency'' for clarity, and is distinct from ''angular frequency''. Frequency is measured in hertz (Hz) which is eq ...

：40

kHz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that on ...

* Antenna power：50 kW（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 :

Reference

External links

* http://jjy.nict.go.jp/jjy/trans/index-e.html {{Coord, 37, 22, N, 140, 51, E, format= dec, display= title Towers in Japan Radio masts and towers

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See also

Reference

External links