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Analog television
 
 
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Analog (or analogue) television encodes television
Television

Television is a widely used telecommunication mass-media for transmitting and receiving moving , either monochrome or color, usually accompanied by sound....
 picture and sound information and transmits it as an analog signal
Analog signal

An analog or analogue signal is any continuous function Signal for which the time varying feature of the signal is a representation of some other time varying quantity, i.e analogous to another time varying signal....
: one in which the message conveyed by the broadcast signal is a function of deliberate variations in the amplitude and/or frequency
Frequency

Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency.The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency....
 of the signal. All systems preceding digital television
Digital television

Digital television is the sending and receiving of moving images and sound by Discrete signal signals, in contrast to the Analog television used by analog TV....
, such as NTSC
NTSC

NTSC is the analog television system used in most of the Americas, Japan, South Korea, Taiwan, the Philippines, Burma, and some Pacific island nations and territories ....
, PAL
PAL

PAL, short for Phase Alternating Line, is a color-encoding system used in broadcast television systems in large parts of the world. Other common analog television systems are SECAM and NTSC....
 or SECAM
SECAM

SECAM, also written S?CAM , is an analog television system first used in France.A team led by Henri de France working at Compagnie Fran?aise de T?l?vision invented SECAM....
 are analog television systems.

Broadcasters using analog television systems encode their signal using NTSC
NTSC

NTSC is the analog television system used in most of the Americas, Japan, South Korea, Taiwan, the Philippines, Burma, and some Pacific island nations and territories ....
, PAL
PAL

PAL, short for Phase Alternating Line, is a color-encoding system used in broadcast television systems in large parts of the world. Other common analog television systems are SECAM and NTSC....
 or SECAM
SECAM

SECAM, also written S?CAM , is an analog television system first used in France.A team led by Henri de France working at Compagnie Fran?aise de T?l?vision invented SECAM....
 analog encoding and then modulate this signal onto a VHF
Very high frequency

VHF is the radio frequency range from 30 megahertz to 300 megahertz. Frequencies immediately below VHF are denoted High frequency , and the next higher frequencies are known as Ultra high frequency ....
 or UHF
Ultra high frequency

Ultra high frequency designates a range of Electromagnetic radiation waves with frequency between 300 megahertz and 3 gigahertz . Also known as the decimetre band or decimetre wave as the wavelengths range from ten to one decimetres....
 carrier.






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Encyclopedia


Analog (or analogue) television encodes television
Television

Television is a widely used telecommunication mass-media for transmitting and receiving moving , either monochrome or color, usually accompanied by sound....
 picture and sound information and transmits it as an analog signal
Analog signal

An analog or analogue signal is any continuous function Signal for which the time varying feature of the signal is a representation of some other time varying quantity, i.e analogous to another time varying signal....
: one in which the message conveyed by the broadcast signal is a function of deliberate variations in the amplitude and/or frequency
Frequency

Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency.The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency....
 of the signal. All systems preceding digital television
Digital television

Digital television is the sending and receiving of moving images and sound by Discrete signal signals, in contrast to the Analog television used by analog TV....
, such as NTSC
NTSC

NTSC is the analog television system used in most of the Americas, Japan, South Korea, Taiwan, the Philippines, Burma, and some Pacific island nations and territories ....
, PAL
PAL

PAL, short for Phase Alternating Line, is a color-encoding system used in broadcast television systems in large parts of the world. Other common analog television systems are SECAM and NTSC....
 or SECAM
SECAM

SECAM, also written S?CAM , is an analog television system first used in France.A team led by Henri de France working at Compagnie Fran?aise de T?l?vision invented SECAM....
 are analog television systems.

Broadcasters using analog television systems encode their signal using NTSC
NTSC

NTSC is the analog television system used in most of the Americas, Japan, South Korea, Taiwan, the Philippines, Burma, and some Pacific island nations and territories ....
, PAL
PAL

PAL, short for Phase Alternating Line, is a color-encoding system used in broadcast television systems in large parts of the world. Other common analog television systems are SECAM and NTSC....
 or SECAM
SECAM

SECAM, also written S?CAM , is an analog television system first used in France.A team led by Henri de France working at Compagnie Fran?aise de T?l?vision invented SECAM....
 analog encoding and then modulate this signal onto a VHF
Very high frequency

VHF is the radio frequency range from 30 megahertz to 300 megahertz. Frequencies immediately below VHF are denoted High frequency , and the next higher frequencies are known as Ultra high frequency ....
 or UHF
Ultra high frequency

Ultra high frequency designates a range of Electromagnetic radiation waves with frequency between 300 megahertz and 3 gigahertz . Also known as the decimetre band or decimetre wave as the wavelengths range from ten to one decimetres....
 carrier. An analog television picture is "drawn" on the screen an entire frame each time, in the manner of a motion picture (cinematograph) film, irrespective of the picture content.

Analog television technology