Ok , I know comcast ,...etc switch to broadcasting in digital over the air .
digital = square waves (discrete wave)
analog = sine waves (continous waves )
My question is how can you ever broadcast completely square waves threw the air? Won't interference or noise change the square waves into looking like more like continous wave?
At least when broadcasting a 1 where the voltage is other then zero you would not have a flat constant voltage at all times. Some fluctation will occur???
Thanks for any help
digital = square waves (discrete wave)
analog = sine waves (continous waves )
My question is how can you ever broadcast completely square waves threw the air? Won't interference or noise change the square waves into looking like more like continous wave?
At least when broadcasting a 1 where the voltage is other then zero you would not have a flat constant voltage at all times. Some fluctation will occur???
Thanks for any help