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Also AM radio or AM. Used interchangeably with kilohertz (kHz) and medium wave. A modulation technique used in electronic communication where the amplitude (signal strength) of the wave is varied in proportion to that of the message signal. Developed in the early 1900s, this technique is most commonly used for transmitting an audio signal via a radio wave measured in kilohertz (kHz). See AM ...
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Standard-definition television (SDTV; also standard definition or SD) is a television system that uses a resolution that is not considered to be either high or enhanced definition. [1] Standard refers to offering a similar resolution to the analog broadcast systems used when it was introduced.
Narrow-bandwidth television (NBTV) is a type of television designed to fit into a channel narrower than the standard bandwidth used for official television standards. The three predominant worldwide broadcast television standards use either 6 MHz wide channels (as in the Americas and Japan, as ATSC and ISDB -T both use those standards) or 8 MHz ...
Television documentary films exist as a singular documentary film to be broadcast via a documentary channel or a news-related channel. Occasionally, documentary films that were initially intended for televised broadcasting may be screened in a cinema .
A generalist channel is a television or radio channel whose target audience is not confined to a particular set of people, but instead aims to offer a wide range of programs and program genres to a diverse general public.
In December 2011, the channel began broadcasting all of its programming in 16:9 aspect ratio format on its primary standard definition channel. [4] This results in the appearance of black bars on the top and bottom of the screen on 4:3 aspect ratio televisions; its high-definition channel displays the channel's programming in its native aspect ...