Composite Video [ kɑ ː mpəzɪt vɪdioʊ, also kəmpɑ zət ː ] is called in German composite, or BAS in the absence of color information.
Information such as composite or composite, as found in the settings menu of set- top boxes or device documentation are incorrect technical translations.
Based on the genesis of an analog television signal with normal resolution is hereby always (about PAL) meant, so never a ( analog ) HDTV signal.
1978 SCART was introduced starting in France, in Europe and from Europe affected markets. About SCART is directly CVBS, often transmitted together with RGB or S-Video, more recently, the target device can then select each according to his ability, the signal with which it can cope. The SCART connection is distributed only in Europe.
In the environment of production companies, radio and TV stations today are for the most part BNC connectors with 75 Ω impedance for composite used. Reasons for this are the high-order mechanical design, improved EMC shielding and the locking mechanism of BNC to RCA as well as on the general system disadvantages of RCA.
In the U.S. for quite some time composite is typically transmitted via a yellow RCA plug, usually combined with a white (or black ) and a red RCA connectors for left and right stereo audio inputs. Since the eighties and nineties (camcorder, game consoles, inputs and outputs of TV cards, inputs on your VCR ) RCA is also used in Europe for many to be connected to the TV peripherals.
Compared with RF modulation
A number of devices that can be connected to the TV, for example, many game consoles and almost all video recorders provide, first a composite video signal with a level of 1 Vpp from. If the TV does not provide appropriate input, but only a classic aerial socket, this signal must be implemented together with the audio signal by means of an RF modulator. The RF modulator is often left at consoles outside of the device. VCRs and similar devices must already implement RF signals in their tuner, which is why the modulators are there almost always available internally. Also, most home computers of the 1980s contained an internal modulator, because at that time only a few TV offering SCART or video jacks and therefore almost all the users needed a modulator.
For the picture and especially sound quality, it is better to avoid the detour via the RF. Most current video and televisions have suitable connections.
The transfer of composite means that image and color signals are assembled in frequency. Most preferably, the separate transmission, either as YUV or RGB signal. YUV defined for analog HDTV signals. The use of an S -Video connection is qualitatively between.