| 21. | :The absorbance of many chemicals is in a narrow frequency band.
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| 22. | "The two frequencies bands have been ready for use for about a year.
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| 23. | This is possible because DSL uses higher frequency bands for data.
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| 24. | The repeaters transmit in the same frequency band as the satellites.
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| 25. | There are two frequency bands available, 1500 MHz and 1900 MHz, he added.
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| 26. | To prevent interference of signals, the frequency band is divided into two sections.
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| 27. | A number of frequency bands are selected for encoding; the rest are discarded.
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| 28. | The damped oscillators are tuned to specific octave or frequency bands.
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| 29. | 1980-Bi-directional filter system for amplifying signals in separate frequency bands
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| 30. | Keiko's progress was being monitored by a Very High Frequency band, and satellite tags.
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