| QAM Interface Characteristics (Options QA, QB2, QC) |
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Input Frequency Range
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51 MHz to 858 MHz, 62.5 kHz steps
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88 MHz to 858 MHz, 62.5 kHz steps
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Modulation Format
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16QAM, 64QAM, 256QAM compliant with ITU J-83 and DVB-C ETS 300 429
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64QAM, 256QAM compliant with ITU J-83*5
SCTE07 Compliant
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16QAM, 64QAM, 256QAM
Compliant with ITU J-83
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Modulation Baud Rate
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5 Mbaud/s min
6.952 Mbaud/s max
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5.057 Mbaud/s and 5.360 Mbaud/s
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5 Mbaud/s min
5.5 Mbaud/s max
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Input Signal Level
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–59 dBm to –19 dBm (50 dBuV to 90 dBuV relative to 75 Ω), with a 16, 64, and 256 QAM input typical
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–64 dBm to –19 dBm (45 dBuV to 90 dBuV relative to 75 Ω) with a 64 and 256 QAM input typical
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–59 dBm to –19 dBm (50 dBuV to 90 dBuV relative to 75 Ω), with a 16, 64, and 256 QAM input typical
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Ultimate Modulation Error Ratio
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37 dB typical
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Receiver Bandwidth
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8 MHz nominal
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6 MHz nominal
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Input Termination Impedance
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75 ? nominal
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Input Return Loss
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–6 dB min, –10 dB typical, 51 MHz to 858 MHz
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Loopthrough Power Gain
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1.5 dB to 4 dB typical, 51 MHz to 858 MHz
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N/A
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N/A
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Loopthrough Noise Figure
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8 dB typical
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N/A
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N/A
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Loopthrough Output Return Loss
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>10 dB typical
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N/A
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N/A
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