Cisco Cisco GS7000 4-Port 1GHZ Node Installation Guide

Page of 110
 
Chapter 5    Using the Web Interface 
 
 
 
68 
4037424 Rev A 
Sample QAM Constellation—Circular Smear (Phase Noise) 
 
 
Sample QAM Constellation—Corners Squeezed to Center (Gain Compression)