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Radio Frequency Modulator

См. также в других словарях:

  • 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

  • Frequency comb — A frequency comb is the graphic representation of the spectrum of a mode locked laser. An octave spanning comb can be used for mapping radio frequencies into the optical frequency range or it can be used to steer a piezoelectric mirror within a… …   Wikipedia

  • Radio electronics — * For the magazine, see Radio Electronics Radio electronics is the sub field of electrical engineering concerning itself with the class of electronic circuits which receive or transmit radio signals.Typically such circuits must operate at radio… …   Wikipedia

  • RF modulator — An RF modulator (for radio frequency modulator) is a device that takes a baseband input signal and outputs a radio frequency modulated signal.This is often a preliminary step in transmitting signals, either across open air via an antenna or… …   Wikipedia

  • Radio transmitter design — In plate modulation systems the voltage delivered to the stage is changed. As the power output available is a function of the supply voltage, the output power is modulated. This can be done using a transformer to alter the anode (plate) voltage.… …   Wikipedia

  • Frequency mixer — This article is about non linear mixing operating in the frequency domain. For other types of mixers, see electronic mixer. Frequency Mixer Symbol. In electronics a mixer or frequency mixer is a nonlinear electrical circuit that creates new… …   Wikipedia

  • radio transmitter — Synonyms and related words: AM transmitter, FM transmitter, RT transmitter, amateur transmitter, beacon, coaxial cable, fan marker, frequency converter, frequency doubler, frequency meter, microphone, mixer, modulator, monitor, oscillator, power… …   Moby Thesaurus

  • Frequency frogging — In telecommunication, the term frequency frogging has the following meanings: 1. The interchanging of the frequencies of carrier channels to accomplish specific purposes, such as to prevent feedback and oscillation, to reduce crosstalk, and to… …   Wikipedia

  • Radio Teletype — Funkfernschreiben (RTTY, engl.: Radio Teletype) ist eine digitale Betriebsart die bei der Kommunikation zwischen Fernschreibern über Funk durchgeführt wird. Wie beim drahtgebundenen Fernschreiben werden die Zeichen als asynchroner serieller… …   Deutsch Wikipedia

  • Amateur radio repeater — An amateur radio repeater is an electronic device that receives a weak or low level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. Many repeaters are… …   Wikipedia

  • Acousto-optic modulator — An acousto optic modulator (AOM), also called a Bragg cell, uses the acousto optic effect to diffract and shift the frequency of light using sound waves (usually at radio frequency). They are used in lasers for Q switching, telecommunications for …   Wikipedia

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