APPEAR AS Confidential 103/352
RF level measured in dBmV
Modulation Error Radio in dB - a typical good reading is between 30 and 40
(the higher the better).
5.4.7 QAM-B INPUT
The QAM-B input module can receive up to four individual QAM-B input streams. To configure the module:
• Switch to the Inputs node in the Navigation Pane
• Select the QAM-B module you want to configure to display the module configuration .Services available on all
four QAM-B input ports will be listed in this view.
The QAM-B input window shows all configurable settings as well as the current bitrate and service information.
The following parameters are available:
Enable the corresponding input port
Port on the ASI input module
Number of services available on this port
Analysis mode of input port
Specify the currently tuned frequency in MHz, valid range is 47 – 861MHz.
Modulation of the carrier
Continuity Counter Error – indicates that one or more packets are lost
To monitor any of the demodulated QAM-B input signals, one of the QAM-B input ports can be assigned to the
output ASI monitor interface. The demodulated QAM-B input signal will then be copied onto the monitor port for
further analyzing or monitoring of the transport stream. Normal operation will not be affected if the monitoring
port is used.
The above list of parameters can be configured by clicking on the pencil icon to the right of each input.
When clicking on an input port, the status parameters for this port are available in the right hand status bar.
Depending on the version of the module, various parameters are displayed.
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