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  • Frequency range — A frequency range or frequency band is a range of wave frequencies. It most often refers to either a range of frequencies in sound or a range of frequencies in electromagnetic radiation, which includes light and radio waves. Many radio devices… …   Wikipedia

  • Frequency compatibility — In telecommunication, the term frequency compatibility has the following meanings: 1. Of an electronic device, the extent to which it will operate at its designed performance level in its intended operational environment (including the presence… …   Wikipedia

  • Frequency of optimum transmission — Frequency of optimum transmission, in the transmission of radio waves via ionospheric reflection, is the highest effective (i.e. working) frequency that is predicted to be usable for a specified path and time for 90% of the days of the month. It… …   Wikipedia

  • Frequency Of Exclusion — refers to the rate of occurrences where a group is excluded from a sample or study. The frequency of exclusion would attempt to define the percentage or rate that a specified group is under represented in a sample or study. Statistical study… …   Investment dictionary

  • frequency assignment — noun a) An authorization, given by an administration, for a radio station to use a radio frequency or radio frequency channel under specified conditions. b) The process of authorizing a specific frequency, group of frequencies, or frequency …   Wiktionary

  • Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) …   Wikipedia

  • frequency — [[t]fri͟ːkwənsi[/t]] frequencies 1) N UNCOUNT The frequency of an event is the number of times it happens during a particular period. The frequency of Kara s phone calls increased rapidly... The tanks broke down with increasing frequency. 2) N… …   English dictionary

  • frequency bands —    Portion of the electromagnetic spectrum within a specified upper and lower frequency limit. Also called frequency range …   IT glossary of terms, acronyms and abbreviations

  • Frequency — F/A/V The number of times a signal vibrates each second as expressed in cycles per second (cps) or Hertz (Hz). (Sound) A&V The number of complete cycles of a periodic waveform that occur in a given length of time. Usually specified in cycles per… …   Audio and video glossary

  • frequency — The number of regular recurrences in a given time, e.g., heartbeats, sound vibrations. [L. frequens, repeated, often, constant] best f. SYN: characteristic f.. characteristic f. f. at which a given neuron responds to the least sound intensity.… …   Medical dictionary

  • Frequency —    The number of electromagnetic waves that cross a given point over a specified time …   The writer's dictionary of science fiction, fantasy, horror and mythology

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