Humax IRCI-5400Z User Manual - Page 6

Copyright & Glossary Copyright • VIACCESSTM is a trademark of France Telecom. • CryptoWorks(TM) is a trademark of Philips Electronics N.V. • Irdeto is a trademark of Mindport BV. • Nagravision is a registered trademark of Kudelski S.A. • Conax is a trademark of Telenor Conax AS. • "Dolby" and the double-D symbol are trademarks of Dolby Laboratories. Warning HUMAX cannot be held responsible for any kind of problems caused by the use of unofficial software. The use of software versions other than HUMAX official software will void the manufacturer's warranty. It is advised that only the formal software released from HUMAX should be used in all HUMAX product range. Glossary • Antenna A device that collects and radiates electromagnetic waves. Includes a satellite dish and abroadband antenna. • Forward Error Correction(FEC) A system of error control for data transmission. • Frequency The number of cycles or events per one second, which is expressed in the unit of Hertz(Hz). • Intermediate Frequency (IF) A frequency to which a carrier frequency is shifted as an intermediate step in transmission or reception. • Low Noise Block (LNB) Downconverter A low noise microwave amplifier and converter which downconverts a range of frequencies to IF range. • Packet Identifier (PID) A set of numbers that idenitifies transport stream packets containing data from a single data stream. • Polarisation Characteristic of an electromagnetic wave determined by the orientation of the electricfield vector. • Quaternary Phase Shift Keying (QPSK) Phase-shift keying in which four different phase angles are used. • Service A channel to which a decoder or TV is tuned. • Transponder An automatic device that receives, amplifies and retransmits a signal on a different frequency. E4