Monday, October 7, 2013

Digital Technologies

New Technologies

LongWave: This term is to do with the radio spectrum,this refers to the length of the wave length. in this case its long. This just basically means the distance the wave is apart from one another.
LongWaved radio started in the 1940s.
                   
MediumWave: This term is to do with the radio spectrum,this refers to the length of the wave length. in this case its medium.

ShortWave: This just means that the distance between te wave lengths are short, and not as long as the other ones.

The strength of these signals are dffret between the times of the day due to enviromental issues.

Description: http://www.ofcom.org.uk/static/archive/ra/topics/research/rcru/project48/final_report/Image110.gif



Amplitude Modulation: AM was a form of radio that was popular in the 19

Freqence Modulation: FM raido waves ae better that medium radio waves becuase they are closer together, this means more wave can be transmittid quicker. this means th quaity of the file transmitted is alot better. FM radio started in the 1980s.


DAB Radio?
DAB Radio is about
 

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