English: Tokyo television broadcasting antenna tower used by Japanese television network Nippon TV from the start of television broadcasting in Japan in 1953 until 1960. It is a type called a "super turnstyle" or batwing antenna; each vertical radiator consists of a pair dipole antennas ("wings") at right angles, which are fed 90° out of phase to create an omnidirectional radiation pattern. The advantage of the "batwing" design is that it has a broad bandwidth and so can transmit multiple television channels simultaneously. It is no longer used but is preserved at Chiyoda-ku, Tokyo Nibancho, NTV former headquarters near NTV's Kojimachi building, as a memorial of the beginning of TV broadcasting in Japan.