carrier transmission

См. также в других словарях:

• carrier transmission — carrier transmission, a way of sending several telephone conversations, each at a different frequency, on the same pair of wires. Electronic filers at each end of the line sort out the conversations …   Useful english dictionary

• Double-sideband suppressed-carrier transmission — (DSB SC): transmission in which (a) frequencies produced by amplitude modulation are symmetrically spaced above and below the carrier frequency and (b) the carrier level is reduced to the lowest practical level, ideally completely suppressed. In… …   Wikipedia

• Optical Carrier transmission rates — are a standardized set of specifications of transmission bandwidth for digital signals that can be carried on Synchronous Optical Networking (SONET) fiber optic networks.[1] Transmission rates are defined by rate of the bitstream of the digital… …   Wikipedia

• Reduced-carrier transmission — is an amplitude modulation (AM) transmission in which the carrier wave level is reduced to reduce wasted electrical power. Suppressed carrier transmission is a special case in which the carrier level is reduced below that required for… …   Wikipedia

• Double-sideband reduced-carrier transmission — (DSB RC): transmission in which (a) the frequencies produced by amplitude modulation are symmetrically spaced above and below the carrier and (b) the carrier level is reduced for transmission at a fixed level below that which is provided to the… …   Wikipedia

• Single-sideband suppressed-carrier transmission — Single sideband suppressed carrier (SSB SC) is a telecommunication technique, which belongs to the Amplitude modulation class.The information represented by the modulating signal is contained in both the upper and the lower sidebands. Since each… …   Wikipedia

• quiescent carrier transmission — One for which the carrier is suppressed in the absence of modulation …   Dictionary of automotive terms

• Carrier sense multiple access — (CSMA) is a probabilistic Media Access Control (MAC) protocol in which a node verifies the absence of other traffic before transmitting on a shared physical medium, such as an electrical bus, or a band of electromagnetic spectrum. Carrier Sense… …   Wikipedia

• 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

• Transmission Voie-Machine — (TVM), or track to train transmission , is a form of in cab signalling used on lignes à grande vitesse (high speed railway lines based on the French TGV system) that differs considerably from signalling on conventional railway lines. Because TGV… …   Wikipedia

• Carrier sense multiple access with collision detection — (CSMA/CD), in computer networking, is a network control protocol in which *a carrier sensing scheme is used. *a transmitting data station that detects another signal while transmitting a frame, stops transmitting that frame, transmits a jam… …   Wikipedia