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Encyclopedia > Central Radio and TV Tower

The Central Radio and TV Tower of Beijing, China is a tall tower used for communication. Its antenna reaches 405 m (1329 ft).   Beijing[?] (Chinese: 北京; pinyin: ; Wade-Giles: Pei-ching; Postal System Pinyin: Peking) is the capital of the Peoples Republic of China (PRC). ... A tower is a high structure, usually man-made. ...


See also: List of towers Olympiaturm This is list of towers - structures with limited floor space as compared to more regular buildings, and which supporting their own weight (as opposed to masts which are held standing by guylines). ...

  • http://www.skyscraperpage.com/diagrams/?b264
  • http://www.structurae.net/structures/data/index.cfm?ID=s0000573

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NWR Receiver Reception Information (1680 words)
Even though the TV antenna is horizontally polarized (elements parallel with the ground), there is usually enough vertical signal due to scattering and reflection of the signal that it will significantly enhance the received signal.
A device called a band separator or splitter (5) is attached to the end of the TV lead with one output connected to the TV and the other to a balun (2/3) then to the weather radio.
When a home made 1/2 wave length antenna may not be suitable and an outside TV antenna is not available, a commercially constructed ground plane antenna (6) with an 18" or 36" vertical shaft is recommended where directionality is unimportant.
Radio - definition of Radio in Encyclopedia (3437 words)
Radio waves are a form of electromagnetic radiation, and are created whenever a charged object accelerates with a frequency that lies in the radio frequency (RF) portion of the electromagnetic spectrum.
Radio was used to transmit pictures visible as television as early as the 1920s.
Radio remote control: Use of radio waves to transmit control data to a remote object as in some early forms of guided missile, some early TV remotes and a range of model boats, cars and aeroplanes.
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