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narrowband radio

См. также в других словарях:

  • Radio — is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of… …   Wikipedia

  • Narrowband — In radio, narrowband describes a channel in which the bandwidth of the message does not significantly exceed the channel s coherence bandwidth. It is a common misconception that narrowband refers to a channel which occupies only a small amount of …   Wikipedia

  • Radio broadcasting — Long wave radio broadcasting station, Motala, Sweden …   Wikipedia

  • Radio communication system — A radio communication system send signals by radio. [cite book | title = Wireless Network Performance Handbook | author = Clint Smith, Curt Gervelis | year = 2003 | publisher = McGraw Hill Professional | isbn = 0071406557 | url =… …   Wikipedia

  • narrowband — adj. pertaining to a small bandwidth; pertaining to the frequency allocated for mobile and radio services in the USA …   English contemporary dictionary

  • HD Radio — HD Radio, which originally stood for Hybrid Digital , is the trademark for iBiquity s in band on channel (IBOC) digital radio technology used by AM and FM radio stations to transmit audio and data via a digital signal in conjunction with their… …   Wikipedia

  • Antenna (radio) — Whip antenna on car …   Wikipedia

  • NOAA Weather Radio All Hazards — Type Weather Radio/Civil Emergency Services Branding …   Wikipedia

  • Marine and mobile radio telephony — Example: Complete GMDSS A3 installation with HF telex. The Marine Radiotelephone Service or HF ship to shore operates on shortwave radio frequencies, using single sideband modulation. The usual method is that a ship calls a shore station, and the …   Wikipedia

  • Digital mobile radio — (DMR) is an open digital radio standard for professional mobile radio (PMR) users specified in the European Telecommunications Standards Institute (ETSI) Standards TS 102 361 parts 1 to 4 and used in products sold in all regions of the world. The …   Wikipedia

  • Wow! signal — The WOW! Signal. The Wow! signal was a strong narrowband radio signal detected by Dr. Jerry R. Ehman on August 15, 1977, while working on a SETI project at the Big Ear radio telescope of The Ohio State University then located at Ohio Wesleyan… …   Wikipedia

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