Haganeyama Transmitter

Haganeyama Transmitter (はがね山標準電波送信所, haganeyama-hyoujyundenpa-soushinjyo) is an LF-time signal transmitter at Fuji-cho, Saga-city, Saga-ken, Japan used for transmitting the time signal JJY on 60 kHz. The Haganeyama site is one of two JJY transmitters, another is the Otakadoyama site.

Antenna of Haganeyama Transmitter, view from southeast.

Summy[1]
  • NAME：NICT Haganeyama LF station
  • Location：Summit of Mt. Hagane, Fuji-cho, Saga-city, Saga-ken
  • Elevation：about 900m
  • Latitude：33°27'56.0"N
  • Longitude：130°10'32.0"E
  • License：NICT
  • Station purpose：Transmitting the official Japanese government frequency standards and time signal
  • Frequency form：250H A1B
  • Frequency：60kHz
  • Antenna power：50kW（Antenna efficiency: about 45%）
  • Antenna form：Umbrella type 200m high
  • Operation time：continuously
  • Operation start：2001/10/01
  • Range：About 1,000 km
  • Transmission method :
    See also: JJY
gollark: As a mostly internal service for PotatOS and such it is also not open sourced.
gollark: I'm osmarks, the web UI is mine, and the new URL is skynet.osmarks.net. I don't think it allows tables as channels now. SPUDNET is more complex and somewhat poorly documented.
gollark: There are other projects in this space like soqet with authentication, but the design called for making it as trustless and simple as possible so skynet requires you to do encryption and stuff yourself (SPUDNET, another project of mine, does *not* do this and does have a fairly complex authorization system, but is used in different areas).
gollark: Someone here made something which meddles with the peripheral API to make it emulate actual modem peripherals, but by default the API is quite different.
gollark: (I found out later that this had in fact been done rather a lot of times before, but mine is unique in having a CC client at least)

See also

Reference
  1. "License Information of Transmitter Station" (in Japanese). MIC. Retrieved 2019-03-26.

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