TV Converter Boxes1/26/2010 12:30 PM

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Terms and Definitions
 
Analog Spectrum
A traditional, less-efficient and lower quality system that uses radio frequency (RF) waves to transmit and display pictures and sound.
ATSC Tuner
Often called an ATSC receiver or HDTV tuner, allows reception of digital television (DTV) signals broadcast over-the-air by TV stations. May be integrated into a television, VCR, digital video recorder, or set-top box.
Broadcast Spectrum
The entire range of frequencies used for radio and television transmission.
Broadcasting
Using radio waves to distribute radio or TV programs which are available for reception by the general public.
Department of Commerce (DOC)
Department whose responsibility is to "foster, serve, and promote the Nation's economic development and technological advancement".
Digital
Describes a new, more efficient method of storing, processing and transmitting information through the use of computer code.
Digital Television (DTV)
The umbrella term used for the new broadcasting system that uses computer code to transmit pictures and sounds. DTV includes all types of digital broadcasting, including High and Standard Definition television, datacasting and multicasting.
Digital-to-Analog Converter Box
A stand-alone device that receives and converts digital signals into a format for display on an analog television receiver.
High-Definition Television (HDTV)
One type of digital television signal that is broadcast at a higher resolution than the others, providing a higher-quality picture.
Household
All of the people who occupy a housing unit. A housing unit is a house, an apartment, a mobile home, a group of rooms, or a single room occupied as separate living quarters. Separate living quarters are those in which the occupants live separately from any other people in the building and that have direct access from the outside of the building or through a common hall.
Multicasting
The ability to transmit multiple standard-definition programs at the same time using a single digital broadcast channel.
National Telecommunications and Information Administration (NTIA)
The President's principal adviser on telecommunications and information policy issues.
NTSC Tuner
A device built-in to a TV that allows reception of analog broadcasting.
Over-the-air
Refers to the transmission and reception of information in a wireless communication system.
Rabbit ears
A V-shaped set-top antenna that is adjustable in length and angle.
Resolution
Amount of detail that can be seen in a broadcast image.
Rooftop antenna
An antenna mounted on the roof of a structure.
Set-top box
A stand-alone device that connects to a television and an external source of signal, turning the signal into content which is then displayed on the television screen.
Standard Definition TV (SDTV)
The basic digital television format closest in quality to traditional analog TV.
 
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