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UHF Stations – Ultra High Frequency. That part of the spectrum used by television channels 14 through 83. This is the 470 to 800 mHz band. Unduplicated Audience – See Cume or Cumulative Audience. Unique Audience – The number of unique individuals who have visited a Web site at least once in the reporting period. UNIX – A multi-purpose computer operating system designed to be used by many users at the same time. Universe – The population chosen for research study. Universe estimates are the estimated number of actual households or people from which the sample will be taken and to which data from the sample will be projected. Upfront – The first selling wave for the broadcast or cable networks. It usually occurs in the spring after the new fall schedules have been announced and presented to major advertisers. The commercial time not sold in the upfront, is sold later in the season in the scatter market. Uplink – A satellite dish capable of relaying television signals from earth to the correct satellite transponder. URL – Uniform Resource Locator. It describes the location and access method of a resource (Web page) on the Internet. |
