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5. Overview of the Facilities
(3) Antenna facilities
( 1 ) Antenna facility In Tokyo
・ The antenna has been installed in the space just below the special observation deck of Tokyo Tower.
・ The transmission antenna consists of 2-stage 2L-stacked loop antennas of 9 faces for vertical polarization. The transmission height is 240meters above the sea level. The transmission output is 2.4kW with 1dB of antenna gain.
Photo 1 shows an appearance of the transmission antenna.
Photo 1
Appearance of Transmission Antenna on Tokyo Tower |
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( 2 ) Antenna facility in Osaka
・ The antenna is located on the steel tower of the NTT Ikoma
radio relay on the summit of Mr. Ikomasan.
・ The transmission antenna is a 6-stage co-linear antenna for vertical polarization. The transmission height is approx. 600 meters above the sea level. The transmission output is 240W with 6dB of antenna gain.
・ Photo 2 shows an appearance of the transmission antenna.
Photo 2
Appearance of Transmission Antenna at Mt.Ikoma Transmission Station Office
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