carrier

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Related to analog modulation: amplitude modulation, digital modulation

carrier

n. in general, any person or business which transports property or people by any means of conveyance (truck, auto, taxi, bus, airplane, railroad, ship), almost always for a charge. The carrier is the transportation system and not the owner or operator of the system. There are two types of carriers: common carrier (in the regular business or a public utility of transportation) and a private carrier (a party not in the business, but agrees to make a delivery or carry a passenger in a specific instance). Regular transportation systems are regulated by states and by the Interstate Commerce Commission if they cross state lines. (See: common carrier, private carrier)

carrier

see COMMON CARRIER, CARRIAGE BY ROAD.
References in periodicals archive ?
As Figure 10 shows, at low modulation frequencies the FM is generated by the digital DC FM system while higher frequencies are provided by analog modulation of the VCO.
The HP ESG-A and - AP series generators provide comprehensive analog modulation capabilities that include AM, FM, and phase and pulse modulation.
In addition, while wireless fiberoptic subsystems are more closely related to the CATV implementation (in that they use direct analog modulation), these new module designs incorporate the particular features demanded by wireless broadband systems: high frequency bandwidth (up to 2.5 GHz); a highly linear, third-order response; easy integration into wireless designs; a wide operating temperature range; and compact packaging.
Traditionally, these radios have used analog modulation techniques and, therefore, are classified as analog radios.
Section I covers basic principles, including articles on analog modulation, sampling pulse code modulation, baseband signaling and pulse shaping, channel equalization and line coding.