74 results about "Guard band" patented technology

In radio, a guard band is an unused part of the radio spectrum between radio bands, for the purpose of preventing interference. It is a narrow frequency range used to separate two wider frequency ranges to ensure that both can transmit simultaneously without interfering with each other. It is used in frequency-division multiplexing. It may be used in both wired or wireless communications, so that adjacent frequency bands on the same media can avoid interference.