Slashdot Mirror
Twisted Radio Beams Could Untangle the Airwaves
Urchin writes "The radio frequency spectrum available for wireless communication is becoming increasingly crowded thanks to new wireless technology. A solution to the shrinking space might be to put a spin on radio beams during their transmission, to produce a twisted beam, according to Swedish physicists. In theory, huge amounts of data could be sent in the pitch of the twist, which is distinct from the amplitude and frequency of radio waves — the features used at the moment to send information."
Like AM? "Hello this is Lush Rimbaugh, your liberal talkshow host. Today our glorious (crackle crackle crackle) passed the non-stimulus (crackle crackle crackle) to save our butts. Praise Atheist." ----- Honey there's a storm on the way. I can hear the lightning on the radio.
Yeah you're right. We don't want another Band that sounds as bad as AM. Digital modulation is the way to go if you want maximum efficiency of the spectrum. HD Radio and Digital Radio Modiale can squeeze FM-quality 40-70 kbps sound into just 10 kilohertz, and 5.1 surround sound in 100 kilohertz..... far better than the Amplitude, Frequency, or Twisty Modulation methods.
"I disapprove of what you say, but I will defend to the death your right to say it." - historian Evelyn Beatrice Hall
Yes, yes, oh my God yes!
Mother, do you think they'll like this sig?