Cisco Model GS7000 4-Port Node 1 GHz with 42 54 Split Installation Guide

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RF Constellation Page 
 
4037424 Rev A 
63 
 
RF Constellation Page 
Select the RF tab to access the RF Constellation page. The RF Constellation page 
appears as shown in the following example. 
 
The QAM constellation map is useful in diagnosing line problems that might 
otherwise go undiagnosed. This section provides useful information on how to 
interpret the information presented in the QAM map. 
The interface consists of a panel of variables and the constellation map itself. At the 
device level, the QAM functionality is only supported by Cheetah Technologies 
products that are based on the ECMM technology. 
Controls 
 
Run — Start the sampling of data by pushing the Run button. The unit will 
acquire 100 samples and then stop. 
 
Stop — Use the Stop button to end the sampling.