Like the idea downloading the cognitive content of a videodisk in less then 10 bit without a overseas telegram in hatful ? That ’s exactly what a team of German engineers can do , having break the record book for wireless data transmission using terrestrial tuner signals .
A team of researchers from the Fraunhofer Institute for Applied Solid State Physics claim to have outwit the late record for beaming data point in this room by a cistron of 10 . To attain the feat , they transmitted data on signals in the 71–76 GHz radio relative frequency ring — which is usually used for terrene and satellite broadcasting .
But to squeeze in that amount of data requires an impressive signal - to - noise ratio , to avoid deliver to waste bandwidth on wrongdoing - correction . So the team ramp up a arrangement of radical - efficient transmitter and receivers . The sender are based on semiconductor chips made gallium - nitride , which provide a gamy - power signal that ’s transmitted from a focussed parabolical feeler .
The squad beamed the signal between a 45 - report towboat in central Cologne and the Space Observation Radar in Wachtberg , 23 miles forth . At the receiver , the researchers used exceptional depleted - haphazardness amplifiers build using indium - Ga - arsenide junction transistor . Their sensitivity allows them to notice implausibly weak signals .
The result speed of 6 Gbit per second has moderately obvious app . The researchers points out that a single transmission system beam could be used to render as many as 250 cyberspace connection run at 24 meagabits per second to site where it ’s insufferable to run a wired connectedness . While you might immediately retrieve such a arrangement would be best fit to , say , disaster geographical zone , the researchers reckon it could even testify a “ toll - in effect replacement for deployment of optic fiber . ” take in this distance .
[ Fraunhofer Institute for Applied Solid State Physics ]
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