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A television antenna, also called a television aerial (in British English), is an antenna specifically designed for use with a television receiver (TV) to receive terrestrial over-the-air (OTA) broadcast television signals from a television station.
In practice a technique called vestigial sideband is used to reduce the channel spacing, which would be nearly twice the video bandwidth if pure AM was used. Signal reception is invariably done via a superheterodyne receiver : the first stage is a tuner which selects a television channel and frequency-shifts it to a fixed intermediate frequency ...
Most commonly, the audio and video are combined at the transmitter before being presented to the antenna, but separate aural and visual antennas can be used. In all cases where negative video is used, FM is used for the standard monaural audio; systems with positive video use AM sound and intercarrier receiver technology cannot be incorporated ...
One page that is dedicated to celebrating photography from history is Old-Time Photos on Facebook. This account shares digitized versions of photos from the late 1800s all the way up to the 1980s.
Radio masts and towers support antennas (also known as aerials) for telecommunications and broadcasting, including television--in the United States. Wikimedia Commons has media related to Radio masts and towers in the United States .
With the dominance of streamers such as Hulu, Disney+ and Max, many people have dumped their expensive cable and satellite TV subscriptions. But for live sports and events (like the Summer 2024 ...
Channel Master's original product was a prefabricated television aerial with hinged elements which would unfold and snap into place; this patented design greatly reduced installation time as existing antenna designs at the time had to be bolted together from multiple pieces by rooftop installers. [17]
The towers were built as high guy-wired aerial masts for the transmission of TV programs. The original analog tower was built in 1976 near Salem, South Dakota , and was 477 meters (1,565 ft). [ 3 ] The digital tower was erected in 1998 near Rowena, South Dakota , and is 609.2 meters (1,999 ft), [ 1 ] making it one of the tallest structures in ...
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