Hi all
I found this pdf and found it be excellent at explaining amplitude modulation for me communication systems module and was hoping if anyone could identify which textbook it was from. If not I am also happy to hear about suggestions for good textbooks on the topic of communications systems for a beginner who is in his last year of university.

Thanks
Art

 

I believe this is it: http://highered.mheducation.com/sites/0070667551/student_view0/chapter3/index.html

John