ab mini CryptoBox 500HD, Руководство пользователя

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4 MHz
The prefix mega means million, and Hertz means cycles per second.
4 MPEG
Moving Picture Experts Group. Established by the International Standards
Organization to provide the basis for a picture coding and compression
system.
4 Forward Error Correction(FEC)
A system of error control for data transmission.
4 Polarization
Polarization allows several programmers to be fit into the same frequency band.
The signals from a satellite are transmitted either with linear (vertical or
horizontal) polarizations or circular (right or left) polarization.
4 QPSK(Quaternary Phase Shift Keying)
Phase-shift keying in which four different phase angles are used.
4 Transponder
An automatic device that receives, amplifies and retransmits a signal on a
different frequency.
4 Symbol rate
Speed of the digital transmission.
4 Scrambled TV programmer
Some TV programmer are transmitted in scrambled form.