carrier current frequency

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• Carrier current — is a method of low power AM broadcasting that does not require a broadcast license in the United States, but is allowed on the campus of any school, so long as the normal FCC Part 15 Rules are adhered to when measured at the edge of the campus.… …   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

• 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

• carrier — [kar′ē ər] n. [ME carier < carien, CARRY] 1. a person or thing that carries, as one who delivers mail or newspapers, or a train, bus, airplane, etc. 2. a) a person or company in the business of transporting goods or passengers b) a company in… …   English World dictionary

• 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

• Current injection technique — The current injection technique is a technique developed to reduce the turn OFF switching transient of power bipolar semiconductor devices. It was developed and published by Dr S. Eio of Staffordshire University (United Kingdom) in 2007.… …   Wikipedia

• Carrier scattering — Defect types include atom vacancies, adatoms, steps, and kinks which occur most frequently at surfaces due to finite material size causing crystal discontinuity. What all types of defects have in common, whether they be surface or bulk, is that… …   Wikipedia

• carrier frequency — The frequency of the alternating current carrier, which produces the electromagnetic waves that radiate from radio transmitting antennae. The audio frequency signals from the microphone modulate the carrier. It is the steady frequency of a… …   Aviation dictionary

• carrier — /ˈkæriə / (say kareeuh) noun 1. a person or thing that carries. 2. a person, company, etc., that undertakes to convey goods or persons. 3. a small platform on a bicycle used for carrying luggage. 4. Machinery a mechanism by which something is… …  

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

• Variable-frequency drive — A variable frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.cite book | first=Sylvester J. |… …   Wikipedia