Hi,
I learned about radio signal modulation many years ago. I thought I understood it, but it is becoming apparent that I don't properly. I watched a one hour long modulation video lecture, and even though it was mostly above my head, learned the first building block to understanding how modulation works: The lecturer asked the students " how long would an aerial/antenna need to be to transmit a human voice?" There was a multi choice answer: 1mm, 1cm, 1mtr, 100mtrs, 10km, >100km. When I heard the answer is >100Km, along with the explanation, a penny dropped. Then he went on to explain different modulations.
I now need to start again and find a less 'above my head' video (I learn best by video) that starts at the human voice and slowly works though the subject. Does anyone know of a video like this please?
Cheers, Camerart.