Using the ‘Create RF threshold’ drop-down menu select whether one common threshold template should
be used for all streams, or if individual threshold templates should be created. Using the ‘Threshold
policy’ drop-down menu select the acceptable deviation from reference measurements. When ‘Custom’
is selected the user specifies acceptable deviations for all parameters that constitute the QAM threshold
template, except Pre and Post FEC BER, for which the thresholds are fixed values not related to
measurements.
6.14.4 QAM — RF overview
The RF parameters and measurements list gives a status overview of all monitored QAM frequencies
from the selected RF input. The parameters and measurements in this list refer to the last completed
monitoring period or, for a stream currently monitored, the current monitoring period.
List of RF parameters and measurements:
Frequency: The stream frequency that the associated parameters apply to
Symbol rate: The detected QAM symbol rate
VB2xx GigE User’s Manual version 5.4 205
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