Assessments - 2, GPA: 4.5
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Appendix 10. Appendix 10.6 Specification Terrestrial Tuner & Channel Input Connector IEC 169-2 Female Frequency Range 177.5MHz to 226.5MHz (VHF) 470MHz to 862MHz (UHF) Signal Level -10 to -70 dBm Demodulation OFDM Mode 2K, 8K FEC Mode 1/2, 2/3, 3/4, 5/6 and 7/8 Guard Intervals 1/4, 1/8, 1/16 and 1/32 Satellite Tuner & Channel Input Connector IEC 169-24 (F-Type) Frequency Range 950MHz to 2150 MHz Signal Level -25 to -70 dBm LNB Power & Polarisation 18V/13Vdc, Current : Max. 500mA, overcurrent Protection 22kHz Tone 22kHz ± 4kHz Tone on/off DiSEqC Control Version 1.0/1.2/2.0 Compatible, USALS, SCD FEC Mode 1/2, 2/3, 3/4, 5/6 and 7/8 Demodulation QPSK Input Symbol Rate 2 to 45 MS/s MPEG Transport Stream A/V Decoding Transport Stream MPEG-2 ISO/IEC 13818 Profile Level MPEG2 MP@ML Input Rate 15 Mbit/s Max Aspect Ratio 4:3, 16:9 Video Resolution 720 x 576 Audio Decoding MPEG-2 Audio/MusiCam Layer I & II Audio Mode Single/Dual/Joint stereo/Stereo GB80 User’s Manual 10. Appendix 10. Appendix Memory Flash Memory 8 Mbytes Graphic (MPEG)/System DRAM 64 Mbytes A/V & Data In/Out Video RCA/TV SCART/VCR SCART Video Output (CVBS, S-Video, RGB) Audio RCA/TV SCART/VCR SCART Volume and Mute Control (Resolution:20bits DAC, MAX. 2Vrms) RS-232C 9 pin Socket type Power Supply Input Voltage 90-250V a.c., 50/60Hz Type SMPS Power Consumption Operation: Max. 28W Standby: Max. 10W Protection Separate internal fuse & Lightning protection Physical Specifications Size 310 x 60 x 237 mm Weight (Net) 1.8 Kg Operating Temp 0 °C to +45 °C Storage Temperature -10 °C to +70 °C GB81 User’s Manual 10. Appendix 10. Appendix 10.7 Glossary • DiSEqC (Digital Satellite Equipment Control) A DiSEqC compatible receiver relies on a switching box which detects the 22kHz tone pulsing rapidly on and off. In this way, a specially designed receiver can control numerous LNBs through a DiSEqC switching box. • Dolby Digital An encoding system that digitally compresses up to 5.1 discrete channels of audio (left front, centre, right front, left surround, right surround) into a single Bitstream. A low frequency effect (LFE) channel is included providing the sound needed for special eff ects. • EPG (Electronic Programme Guide) An electronic equivalent to a printed television listings magazine; it is an application used with digital set-top boxes and digital television sets to list current and scheduled programs that are or will be available on each channel, including a short summary or commentary for each program. The information supplied in the EPG is sent and updated by the channel broadcaster. • FEC (Forward Error Correction) A technique for error control of data transmission. • Frequency The property of a signal measured in cycles per second (=Hz). • FTA (Free- To-Air) An unscrambled broadcaster allowing customers to view channels or services without paying any subscription. • Hi-Fi (High Fidelity) The characteristics of audio devices that can play back all the audio frequencies a person can detect, which is the range of 16Hz~20KHz. Sometimes it is used to indicate good quality of audio devices such as stereo tape recorders. • LNB (Low Noise Block) A device that is mounted on an arm facing your satellite dish, focusing on satellite signals. A LNB converts signals received from satellite to a lower frequency and sends them to a satellite receiver via coaxial cable. • OSD (On Screen Display) OSD displays the basic information necessary for the users to configure monitor or TV settings. OSD information may include brightness, contrast, tuning, RGB adjustment, and screen size and position. • OTA (Over the Air) A standard for the transmission of software for equipment, through a broadcast system. Manufacturers reserve the right for deciding the release of the software for their products. • Polarization The direction of the electrical and magnetic fields of a signal. Satellites use both vertical and horizontal polarisation. Means that a frequency can be used twice. GB82 User’s Manual 10. Appendix 10. Appendix • RF (Radio Frequency) Television signals are modulated onto RF signals and are then demodulated by your television’s or STB’s tuner. • RS-232C A connection to allow you to connect to a PC to update receiver’s software. • SCART A 21-pin connector standard to connect two pieces of Audio-Visual equipment such as a TV and a VCR. Each device will have a 21-pin female connection; a cable with male connection at both ends is used for connecting the devices. • Smartcard A credit card sized card that contains updateable chip memory. It is used for accessing Pay TV (encrypted) channel or services when inserted into an appropriate receiver. • S/PDIF (Sony/Philips Digital Interface format) A standard format for the transfer of digital audio signals. It allows the transfer of digital audio between two devices without any conversion to and from analogue, which could degrade the signal quality. • Transponder A satellite is divided up in parts called transponders. A transponder ...