62 20. glossary of terms – Dream Vision DM 7000-S User Manual

Page 62

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IR

Infrared. A wavelength which lies below that of visible light. It is used for data

transmission, e.g. for very small computers (PDAs) and for remote control

units.

LCD

Liquid Crystal Display is a technology which is used in notebooks and other

computers for presenting images and symbols. In contrast to LED (Light

Emitting Diode) and gas plasma technologies, LCD allows a much higher

resolution than cathode ray tube technology (CRT).

LNB /LNC

Low Noise Blockconverter / Low Noise Converter (feed system). Converts the

downlink satellite frequencies to 1.Sat-ZF. Receiver component on or in the

satellite antenna, which receives the high frequencies of the satellites,

amplifies them, and converts them to the lower medium frequency.

LOF

Fixed frequency around which the high input frequency of the satellite signal

is translated (L.O.F. = Local Oscillator Frequency).

MCPC

Multiple Channel Per Carrier. Transmission system which uses a single

transponder for multiple channels. (see also SCPC).

MHz

Megahertz. Number of oscillations of a signal per second. Unit: Hertz. One

kilohertz (kHz) corresponds to a thousand oscillations per second, one mega-

hertz (MHz) to a million oscillations per second, and one gigahertz (GHz) to a

billion oscillations per second.

Mini-DiSEqC

Two universal single LNBs, for digital and analog, reception can be controlled

with the help of the „Tone-Burst“ analog switching signal (also known as

Mini-DiSEqC). 14/18 volts and 22 kHz are then controlled over a special

DiSEqC multi-switch.

MIPS

Millions of Instructions Per Second. Measurement of millions of machine

instructions carried out per second. Wags say it stands for „Misleading

Interpretation of Processor Speed“. Also a company of this name which

produces processors and other chips (in RISC architecture).

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20. Glossary of terms

20. Glossary of terms

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