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Cisco GoQAM - Installation and Operation Requirements

Cisco GoQAM
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RF Specifications
4004834 Rev D 153
RF Specifications
Specification Range
Frequency Range (center frequency) 91 to 869 MHz
Minimum Tuning Step Size 250 kHz
RF Output Power Level +42 to +54 dBmV minimum range
RF Output Impedance 75
RF Output Return Loss (carrier on) > 12 dB (within output channel)
Spurious Outputs (50 MHz to 1.1 GHz)
single frequency modulated output related
< -60 dB (relative to the average power of the
QAM channel with the highest power level)
Noise Floor (out of band) < -136 dBc/Hz > 40 MHz from center
frequency
Phase Noise -84 dBc/Hz 10 kHz from carrier
-86 dBc/Hz 10 kHz from carrier
(typical)
Output Power Level Change Over Tuning
Range
± 2.0 dB
Output Frequency Error (over temperature) < 3 ppm

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