NHK transmits Ultra HD 8K video over-the-air

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Japanese broadcaster, NHK, was able to successfully transmit a compressed Ultra HD signal (7,680px x 4,320px) over two regular UHF channels, a new technological feat. NHK said that the transmission occurred over a distance of 4.2km (~2.6 miles) from the roof of their Science and Technology Research Laboratory in Tokyo to a remote location. The transmission used multiple channels, a method that NHK refers to as MIMO — similar to IEEE 802.11n, LTE, and HSPA+. LDPC coding was also used for error correction. In February the company announced that it had engineered an 8K sensor that can shoot at 120fps. In April, it showed off a 145-inch Ultra HD 8K display produced in collaboration with Panasonic. NHK’s Science and Research laboratories will be showing the technology at work between May 24th and 27th.

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Andrew Michael is the Founder of Ultra HDTV Magazine. His interest in the technology began in 2008, before the term "Ultra HD" became mainstream. Andrew has contributed numerous articles, and continues to evolve Ultra HDTV into the ultimate Ultra High Definition resource.

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