Transponder - A satellite channel. There is often one program per transponder. Some transponders are wider than 6 MHz and can carry more than one NTSC program. Several digital channels can fit on one transponder.
Dot Pitch - The distance between pixels (picture elements) in a display. In a CRT for HDTV, the dot pitch is typically 0.25 - 0.3 mm. For full resolution HDTV display approximately 1400 pixels are required across the screen.
Anamorphic - the squeezing horizontally of a 16 - 9 image into a full screen 4 - 3 display, resulting in distortion of the image geometry.
Progressive scan - This is the opposite of interlaced scan.
DLP - (digital light processor). A technology for video projection, also call DMD (Digital Micro-mirror Device). It is a large chip with about a million tiny mirrors on its surface. The chip can tilt each mirror to vary the amount of light reflected off of it.
OTA - (over the air) - There are about 1500 OTA (terrestrial) TV stations in the U.S.
Composite Video - An analog video signal (NTSC, PAL or SECAM) that includes both luminance (brightness) and chrominance (color) signals encoded together to form a single signal.
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