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2. Television antenna - Wikipedia

   en.wikipedia.org/wiki/Television_antenna

   Combined with a signal increase of 14 dB due to height and 11 dB due to lack of attenuating building walls, an outdoor antenna can result in a signal strength increase of up to 40 dB at the TV receiver. [6] Outdoor antenna designs are often based on the Yagi–Uda antenna [16] or log-periodic dipole array (LPDA). [17]

3. Digital television in the United States - Wikipedia

   en.wikipedia.org/wiki/Digital_television_in_the...

   In November 2017, the FCC approved ATSC 3.0 (Next Gen TV), an updated version of the ATSC standards that supports High Efficiency Video Coding (HEVC), video resolutions of up to 4K ultra high-definition (4K UHD), 120 Hz frame rate, high-dynamic-range (HDR) color, datacasting, and mobile television. Unlike the original digital transition, ATSC 3 ...

4. Cable television in the United States - Wikipedia

   en.wikipedia.org/wiki/Cable_television_in_the...

   Most cable viewers in the U.S. reside in the suburbs and tend to be middle class; [4] cable television is less common in low income, urban, and rural areas. [ 4 ] According to reports released by the Federal Communications Commission , traditional cable television subscriptions in the US peaked around the year 2000, at 68.5 million total ...

5. Cable television - Wikipedia

   en.wikipedia.org/wiki/Cable_television

   The abbreviation CATV is used in the US for cable television and originally stood for community antenna television, from cable television's origins in 1948; in areas where over-the-air TV reception was limited by distance from transmitters or mountainous terrain, large community antennas were constructed, and cable was run from them to ...

6. QAM (television) - Wikipedia

   en.wikipedia.org/wiki/QAM_(television)

   QAM is used in a variety of communications systems such as Dial-up modems and WiFi. In cable systems, a QAM tuner is linked to the cable in a manner that is equivalent to an ATSC tuner which is required to receive over-the-air (OTA) digital channels broadcast by local television stations when attached to an antenna. Most new HDTV digital ...

7. ATSC standards - Wikipedia

   en.wikipedia.org/wiki/ATSC_standards

   However, cable operators have still been slow to add ATSC channels to their lineups for legal, regulatory, and plant & equipment related reasons. One key technical and regulatory issue is the modulation scheme used on the cable: cable operators in the U.S. (and to a lesser extent Canada) can determine their own method of modulation for their ...