carrier current


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carrier current

[′kar·ē·ər ‚kər·ənt]
(communications)
A higher-frequency alternating current superimposed on ordinary telephone, telegraph, and power-line frequencies for communication and control purposes.
References in periodicals archive ?
Neither do the rules provide for a means of measuring emission from carrier current systems.
(The switch is suppose to be open when the lamp is turned off.) This is an easy and inexpensive way to find a carrier current device.
Contract notice: Framework agreement for catenary work, here earthing measures and measures for carrier current return for the areas of bavaria, hesse (rb mid) and north rhine-westphalia.