4.0 Web Interface, continued
38
704-939-B10-001 Rev. A5 (06/2019)
4.11 Tools Menu - Constellation and Microreflections
The Web Page of the DM3X provides some basic tools for analyzing impairments on the DOCSIS network. The “Tools”
menu selection on the Web page provides access to the Constellation, Microreflections, and Spectrum tools.
4.11.1 QAM Constellation Tool
The Constellation page provides a constellation view of the DOCSIS channel that may assist in identifying and
troubleshooting common network impairments.
Navigate the mouse pointer to the Tools menu item and select “Constellation” in the drop-down menu to open and start
the Constellation page. The page will automatically refresh until the Samples Remaining counter reaches 0. Clicking the
Restart button refreshes the constellation tool, and clicking the Stop button halts the analysis.
The number of samples can be changed from 100 (default) on the sampling control to either 150 or 50 for more or less
sample rates. For User Name and Password refer to Section 4.3.1, Web Interface Security Levels.
Fig. 4-15, QAM Constellation Tool
