Hi Guys, First off i'd like to say what a site! having found it over the weekend it's given me hope that there may well be hope for me yet. I'm in Ireland and in first year of a BSc in Computer Network Administration, it's a new course and im a returning mature student, it's about the best thing i've ever done but at the moment i'm having a little trouble on what is my favorite subject strange enough. Telecommunications Fundamentals which covers quiet a bit, Optics, E/M, Modulation etc. What im looking for is a step by step approach to this stuff, drawing digrams, conversion of units and the math involved in radio waves, signal power, dB scale. I have done a lot of research with google and what have you but im looking for a one stop place that will cover this area of physics and help me get used to the math and terminology in a simple but effective way. Thanks in advance.