RGBlink C1US User Manual page 72

bars are two rows of reversed color bars.
 "Color burst": In color TV systems, a burst of subcarrier
frequency located on the back porch of the composite
video signal. This serves as a color synchronizing signal
to establish a frequency and phase reference for the
chroma signal. Color burst is 3.58 MHz for NTSC and 4.43
MHz for PAL.
 "Color temperature": The color quality, exPushed in
degrees Kelvin(K), of a light source. The higher the color
temperature, the bluer the light. The lower the
temperature, the redder the light. Benchmark color
temperature for the A/V industry include 5000°K,
6500°K, and 9000°K.
 "Contrast ratio": The radio of the high light output level
divided by the low light output level. In theory, the
contrast radio of the television system should be at least
100:1, if not 300:1. In reality, there are several
limitations. In the CRT, light from adjacent elements
contaminate the area of each element. Room ambient
light will contaminate the light emitted from the CRT.
Well-controlled viewing conditions should yield a
practical contrast ratio of 30:1 to 50:1.
 "DVI": Digital Visual Interface. The digital video
connectivity standard that was developed by DDWG
(Digital Display Work Group). This connection standard
offers two different connectors: one with 24 pins that
handles digital video signals only, and one with 29 pins
that handles both digital and analog video.
C1US User Manual 72