The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 342
requency carrier^ wave ^ The word carrier is here used as a general term to indicate the highfrequency wave, which is modulated by the signaling wave. It has also amore specific meaning in which it refers to the transmission of high fre-quency currents over wires. DETECTION OF CURRENTS WITH THE… … Fig. 188.
Telegraph, Wireless
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