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Amateur radio, also known as ham radio, ... Because of the wide bandwidth and stable signals required, amateur television is typically found in the 70 cm ...
Amateur radio frequency allocation is done by national telecommunication ... Five 2.8 kHz-wide channels are available in the U.S., centered on 5.332, 5.348, 5.368, 5. ...
In the vast majority of countries, the population of amateur radio operators is predominantly male. In China, 12% of amateur radio operators are women, [29] while approximately 15% of amateur radio operators in the United States are women. [30] The Young Ladies Radio League is an international organization of female amateur radio operators.
The World Administrative Radio Conference (WARC) bands are three portions of the shortwave radio spectrum used by licensed and/or certified amateur radio operators. They consist of 30 meters (10.1–10.15 MHz), 17 meters (18.068–18.168 MHz), and 12 meters (24.89–24.99 MHz).
Morse code is called the original digital mode. Radio telegraphy, designed for machine-to-machine communication is the direct on / off keying of a continuous wave carrier by Morse code symbols, often called amplitude-shift keying or ASK, may be considered to be an amplitude modulated mode of communications, and is rightfully considered the first digital data mode.
The 2-meter amateur radio band is a portion of the VHF radio spectrum that comprises frequencies stretching from 144 MHz to 148 MHz [1] in International Telecommunication Union region (ITU) Regions 2 (North and South America plus Hawaii) and 3 (Asia and Oceania) [2] [3] and from 144 MHz to 146 MHz in ITU Region 1 (Europe, Africa, and Russia).
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