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why information transfer in high frequency?
Somedeep
on 2011-01-31 10:30:00chk the site.....i hope it will help u ...!!! http://wiki.answers.com/Q/Why_do_you_use_high_frequency_waves_in_sky_wave_propagation
sanchayita
on 2011-01-31 10:30:00higher frequencies mean more space to store information in the wave itself. But, not too high that its amplitude is tiny enough to trespass the ionosphere solar particles, leaking out into the space. In fact, lower frequencies can travel longer distances. But there is also a solution for long distance high frequency waves, called Skywave (keep this word in mind if you are interested to be a radio amateur). Skywave is cheaper and more effective, normally travelling a distance of 1000km at least (it\'s far). For example, Tv broadcasting use skywave technology. But, for lighter application usage that transmit very little information, such as atomic clock synchronisation. The application produce a tick in each seconds, therefore bursting a small piece of radiowave into the atmosphere in every second. This 1 hertz, very low frequency can achieve a coverage of the entire north America continent. Why don\'t you produce a free mobile internet technology by blending low and high frequencies to turn out a sustainable (low enough to cover much area; high enough to store adequate information in the wave itself, maybe this will provide \"Everywhere Internet\", even for the third world countries) information transfer welfare for humankind? If you be the founder of it, be prepared to proceed to the heaven. Do you get it?