เข้าชม : 11856
WISI OH-79 2 DVB-T/C RF analogue ch processing
- Reception of a DVB-T/C signal and processing to an analog-TV-channel
- Demultiplexing and decoding of MPEG-2 and MPEG-4 signals
- CI interface
- HD > SD downscaling
- NICAM audio processing
- Input frequency range 110–878 MHz
- Output frequency range 45–862 MHz
- Vestigial sideband modulator
- OH 79 2 : addittion DVB-T2
- OH 79 D : decoding of Dolby** Digital sound
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Input frequency range
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110-858 MHz
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Input frequency steps
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250 kHz
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Input level range
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47-90 dBµV
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Channel bandwidth selectable
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7/8 MHz
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COFDM spectral
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2k and 8k FFT
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Modulation scheme
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QPSK, 16-QAM, 64-QAM
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Guard intervall
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1/32, 1/16, 1/8, 1/4
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FEC inner code
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Conv., K=7, G=1/2, 2/3, 3/4, 4/5, 5/6, 7/8
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QAM modulation scheme
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16-, 32-, 64-, 128-, 256-QAM
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QAM symbol rate
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1-7 MBaud
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Output frequency range
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45-862 MHz
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Output frequency steps
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250 kHz
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Stability of output frequency
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±30 kHz
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Output channel bandwidth
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7/8 MHz
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Output level (1 dB steps)
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95-105 dBµV
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Spurious outside TV channel
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>55 dB
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TV standards
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B/G, D/K, I, L, M, N
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Video standards
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PAL, SECAM, NTSC
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Video format
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4:3, 16:9, 4:3-Zoom
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Video decoder
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MPEG-2 (ML@MP) H.264 (MPEG-4)
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Audio decoder
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MPEG-2 (L1/L2), AAC
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Audio format
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Mono, A2-Stereo, Dual, NICAM
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S/N video (CCIR-rec. 567-1)
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>57 dB
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S/N audio
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>50 dB
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Stability of output level
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±1 dB
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Connectors RF
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F-connectors
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Current consumption
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ca. 0.80 A
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Power consumption
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<10 W
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Operating temperature
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-20 °C to +55 °C
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Packing unit
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1 piece
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