Jan 12, 2015 #1 P Preben Member level 1 Joined Jul 16, 2006 Messages 40 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Activity points 1,486 Dear all, How can I plot a qam constellation like attached figures. thanks Attachments constellation.jpg 59.6 KB · Views: 90 constellation2.png 17.1 KB · Views: 95