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Radio Frequencies (table)
(Encyclopedia) Radio Frequencies Frequency (kHz) Name Abbr. 10–30 Very low VLF 30–300 Low LF 300–3,000 Medium MF 3,000–30,000 High HF 30,000–300,000 Very high VHF 300,000–3,000,000 Ultra…radio range
(Encyclopedia) radio range, geographically fixed radio transmitter that radiates coded signals in all directions to enable aircraft and ships to determine their bearings. An aircraft or ship can…Ebola FAQs
Source: Centers for Disease Control and Prevention, World Health Organization Ebola Fact Sheet Rare and Deadly Diseases What is Ebola virus disease?…television
(Encyclopedia) CE5 Video transmission and reception of color and black-and-white television: The camera lens focuses collected light rays into mirrors, which separate the image into its three…Trending
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