DVB-T и аналог, какой тюнер выбрать
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iparktur
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Откуда: Никополь
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RE: DVB-T и аналог, какой тюнер выбрать / 10-12-2012 23:41
Уважаемые ! Имеется к предложению DVB-T2 тюнер с такими параметрами :
1.RF tuner & DVB-T2 Channel Complied Standard ETSI EN 302 755 V 1.1.1 Input impedance 75ω
• Modulation COFDM: QPSK, 16QAM, 64QAM, 256QAM
• Frequency VHF (174-230 MHz)-optional, UHF (470 – 806 MHz)
• Input signal level 36~85dBμV
• FEC coding LDPC Code + BCH Code, Code rates: 1 /2, 3/5, 2/3, 3 /4, 4/5, 5/6
• FFT Size 1K, 2K, 4K, 8K, 16K, 32K.
• C/N range (Rice channel) 3dB (QPSK 1 /2) to 24dB (256QAM 5/6)
• Pilot Pattern PP1 to PP8
• Guard intervals 1/128, 1/32, 1/16, 19/256, 1/8, 19/128, 1 /4.
• Channel raster 7 MHz (VHF), 8 MHz (UHF; Signal Bandwidth 6~8MHZ
• Service specific robustness Physical Layer Pipes (PLP)
• Interleaving Bit + Cell +Time + Frequency
• Diversity SISI, MISO, (SIMO, MIMI if diversity receiver)
•Rotated constellations significant robustness gain in channels with severe degradations
(multipath, SFN operation, narrow band interference…)
• Mode of Extensions Future Extension Frame (FEF)
• Max Bit Rates (8MHz) 50.3 Mbit/s, (32Ke, 256QAM, CR=5/6, GI=1/28, PP7)
• Used Bit Rates (8MHz) Portable SFN: 25.0 Mbit/s, Fixed SFN: 37.0 Mbit/s,
• Fixed MFN: 40.2 Mbit/s
• GE06 compatible Signal is under the mask of DVB-T (power level measured in a 4 KHz bandwidth)
2. MPEG Transmission stream and video and Audio Decoding
Transmission stream MPEG-2 ISO/IEC 13818
Video decoding MPEG-2/MPEG 4 AVC (H.264), 1920X1080
Aspect Ratio (image rate) 4:3, 16:9
Frame frequency 25Hz (PAL)
Video Resolution 720X576 (PAL)-standard definition,
Audio decoding MPEG/MusiCam Layer I & II / HE AAC
Audio mode Single track/dual track/stereo
Audio sampling rate 32KHz, 44.1KHz 48KHz.
3. Scanning function
• The STB should include a frequency scanning function to detect the availability of DVB-T signals.
• It should also automatically list the content of the terrestrial bouquet by reading the PSI/SI streams and
• Be capable of program memory in case of cut off
4. Quality reception thresholds All STBs should have an on-screen visual signal level indicator which would aid in directing the antenna and troubleshooting reception problems.
5. Software
• EPG: current and next programmed information. 24x7 days schedule.
• Capable of the Identity control, watch rating and parental lock
• Auto/manual tuning
• 24-hour clock
• Support Receive mail
• Provides the instant and personalized message prompt
• Display and withdrawal of subtitles
6. Support multi-language info
7. Teletext & Teletext subtitle
• It is able to display Teletext using the OSD and/or by the insertion of the Teletext data in the VBI of the analogue CVBS video output.
• It is able to display Teletext subtitling, meeting the requirements for level 1.5 in ref. [ETS 300 706, “Enhanced Teletext Specification”]
8. Interfaces
• RF input connector: IEC 169-2 female, input impedance 75 ohms
• One RCA (CINCH) female connector for video output and Two RCA (CINCH) female connectors for stereo sound output
• RF by pass (loop) IEC 169-2 male
• RF input via a PAL-G modulator
• HDMI interface
• Should include at least one RF cable to connect the unit with its associated analogue television receiver.
Plugged into the set top box.
9. Physical attributes Power supply AC 240±10%, 50 ±1Hz
10. Environmental attributes Operating Temperature 0~ 45°C
Operating humidity Up to 90%
11. Reliability MTBF 80,000Hrs
Цена "социальная" - около 45 долларов.
Можете подсказать - он будет нормально работать у нас на Украине?
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RE: DVB-T и аналог, какой тюнер выбрать - iparktur - 10-12-2012 23:41
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