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(frequency bands)

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См. также в других словарях:

  • 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

  • GSM frequency bands — or frequency ranges are the cellular frequencies designated by the ITU for the operation of GSM mobile phones. Contents 1 GSM frequency bands 1.1 GSM 900, GSM 1800 and EGSM/EGSM 900 1.1.1 GSM 1800 …   Wikipedia

  • UMTS frequency bands — or frequency ranges are the radio spectrum frequencies designated for the operation of the UMTS / HSDPA / HSUPA / HSPA+ system for mobile phones. UMTS FDD UMTS FDD is designed to operate in the following paired bands:Deployment in other frequency …   Wikipedia

  • Amateur radio frequency bands in India — Amateur radio or ham radio is a hobby that is practised by over 16,000 licenced users in India.cite news|url=http://www.tribuneindia.com/2005/20050304/nation.htm#10|title=Government to promote amateur radio|last=Ramchandran|first=Ramesh|date=2005 …   Wikipedia

  • macrosegmentation of frequency bands — dažnio juostų makroskirstymas statusas T sritis radioelektronika atitikmenys: angl. macrosegmentation of frequency bands vok. Frequenzbandmakrosegmentierung, f; Frequenzbandmakroverteilung, f rus. макросегментация полос частот, f pranc.… …   Radioelektronikos terminų žodynas

  • microsegmentation of frequency bands — dažnio juostų mikroskirstymas statusas T sritis radioelektronika atitikmenys: angl. microsegmentation of frequency bands vok. Frequenzbandmikrosegmentierung, f; Frequenzbandmikroverteilung, f rus. микросегментация полос частот, f pranc.… …   Radioelektronikos terminų žodynas

  • Frequency-division multiple access — or FDMA is an channel access method that is used by radio systems to share a certain radio spectrum between multiple users. The users are individually allocated one or several frequency bands, allowing them to access the radio system without… …   Wikipedia

  • Frequency management challenges in military forces — Every military force has a goal to ensure and have permanent access in the spectrum of radio frequencies to meet its vital military tasks. This is based on strategies, doctrines and different policies that military forces adhere to.The nature of… …   Wikipedia

  • Frequency allocation — The electromagnetic spectrum is an aspect of the physical world which, like land, water, and air, is subject to usage limitations. Use of radio frequency bands of the electromagnetic spectrum is regulated by governments in most countries, in a… …   Wikipedia

  • Frequency assignment authority — In telecommunication, frequency assignment authority is the power granted an administration, or its designated or delegated leader or agency via treaty or law, to specify frequencies, or frequency bands, in the electromagnetic spectrum for use in …   Wikipedia

  • Frequency-hopping spread spectrum — (FHSS) is a method of transmitting radio signals by rapidly switching a carrier among many frequency channels, using a pseudorandom sequence known to both transmitter and receiver. A spread spectrum transmission offers three main advantages over… …   Wikipedia

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