21. Teledesic still owns rights to a portion of high-frequency spectrum . 22. In radio and telecommunications, the frequency spectrum can be shared among many different broadcasters. 23. Globe was assigned with 10-Megahertz ( MHz ) of the 3G radio frequency spectrum . 24. TransferJet uses the same frequency spectrum as DAA functionality. 25. Each filter converts time samples into a frequency spectrum . 26. The frequency spectrum has been talk ) 15 : 42, 16 March 2010 ( UTC) 27. The visible light spectrum is 10, 000 times larger than the entire radio frequency spectrum . 28. In practice, this is rarely done because the frequency spectrum provides all the necessary information. 29. It assigns call signs, issues amateur radio licences, allots frequency spectrum , and monitors the radio waves. 30. The Modal bandwidth of a multimode fiber is determined from the optical output power frequency spectrum .