narrow-band frequency modulation

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• narrow-band frequency modulation — siaurajuostis dažnio moduliavimas statusas T sritis automatika atitikmenys: angl. narrow band frequency modulation vok. Schmalbandfrequenzmodulation, f rus. узкополосная частотная модуляция, f pranc. modulation de fréquence à bande étroite, f …   Automatikos terminų žodynas

• Frequency modulation — See also: Amplitude modulation In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its… …   Wikipedia

• modulation de fréquence à bande étroite — siaurajuostis dažnio moduliavimas statusas T sritis automatika atitikmenys: angl. narrow band frequency modulation vok. Schmalbandfrequenzmodulation, f rus. узкополосная частотная модуляция, f pranc. modulation de fréquence à bande étroite, f …   Automatikos terminų žodynas

• Frequency synthesizer — A frequency synthesizer is an electronic system for generating any of a range of frequencies from a single fixed timebase or oscillator. They are found in many modern devices, including radio receivers, mobile telephones, radiotelephones, walkie… …   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

• Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• Amplitude modulation — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• 10-meter band — The 10 meter band is a portion of the shortwave radio spectrum allocated to amateur radio use. The band consists of frequencies stretching from 28.000 MHz to 29.700 MHz.HistoryThe 10 meter band was created by the… …   Wikipedia

• 80-meter band — The 80 meter or 3.5 MHz band is a core amateur radio frequency band, allocated frequencies from 3.5 to 4.0 MHz in IARU Region 2, and generally 3.5 to 3.8 or 3.9 MHz in Regions 1 and 3 respectively. The portion of the band used for voice… …   Wikipedia

• Orthogonal frequency-division multiple access — Multiplex techniques Circuit mode (constant bandwidth) TDM · FDM · SDM Polarization multiplexing Spatial multiplexing (MIMO) …   Wikipedia

• Shortwave radio — Shortwave can also refer to a shortwave trough meteorology. A solid state, analog shortwave receiver Shortwave radio refers to the upper MF (medium frequency) and all of the HF (high frequency) portion of the radio spectrum, between… …   Wikipedia