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  2. Effects of time zones on North American broadcasting

    en.wikipedia.org/wiki/Effects_of_time_zones_on...

    The scheduling of television programming in North America (namely the United States, Canada, and Mexico) must cope with different time zones. The United States (excluding territories) has six time zones ( Hawaii–Aleutian, Alaska, Pacific, Mountain, Central and Eastern ), with further variation in the observance of daylight saving time.

  3. Wireless telegraphy - Wikipedia

    en.wikipedia.org/wiki/Wireless_telegraphy

    Wireless telegraphy or radiotelegraphy, commonly called CW ( continuous wave ), ICW (interrupted continuous wave) transmission, or on-off keying, and designated by the International Telecommunication Union as emission type A1A or A2A, is a radio communication method. It was transmitted by several different modulation methods during its history.

  4. Shortwave broadcasting in the United States - Wikipedia

    en.wikipedia.org/wiki/Shortwave_broadcasting_in...

    Shortwave broadcasting in the United States. Shortwave broadcasting in the United States allows private ownership of commercial and non-commercial shortwave stations that are not relays of existing AM/MW or FM radio stations, as are common in Africa, Europe, Asia, Oceania except Australia and Latin America. In addition to private broadcasters ...

  5. Here are the TV broadcast map and announcers for ... - AOL

    www.aol.com/tv-broadcast-map-announcers-chargers...

    CBS Sports’ No. 1 NFL broadcast team will call the Chiefs-Chargers contest: Jim Nantz, Tony Romo and Tracy Wolfson. Viewers in Kansas City also will see the Bills-Patriots game, which starts at ...

  6. History of radio - Wikipedia

    en.wikipedia.org/wiki/History_of_radio

    History of radio. The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of ...

  7. Here are the TV broadcast map and announcers for the Chiefs ...

    www.aol.com/news/tv-broadcast-map-announcers...

    Fans in Kansas City also will see the Jaguars-Browns game, which starts at noon, on KCTV-5, and the Rams-Ravens game on Fox 4. Here is the full list of broadcaster assignments for Week 14 (all ...

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