单词 | superheterodyne |
释义 | superheterodyneadj.n. Radio and Television. A. adj. Employing or involving a method of radio and television reception in which the receiver produces a tunable signal which is combined with the incoming signal to produce a predetermined intermediate frequency (typically ultrasonic), on which amplification and other processing is performed; of or relating to this method of reception. Cf. heterodyne adj. 1 ΘΚΠ society > communication > telecommunication > radio communications > [adjective] > method of receiving or detecting signal heterodyne1908 autodyne1918 autoheterodyne1919 superheterodyne1920 neutrodyning1924 superhet1926 homodyne1928 frequency shift1944 1920 Wireless Age Aug. 43/1 You may obtain condensers suitable for use in the super-heterodyne receiver. 1922 Wireless World 1 Apr. 11/1 The Armstrong super~heterodyne principle, in which the incoming signals are heterodyned before the first detector valve. 1948 Life 15 Mar. 3 (advt.) An AC-DC superheterodyne table radio in warm brown plastic. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) XI. 257/1 Frequency-modulation (FM) receivers are almost always superheterodyne. 1986 Pop. Mech. June 11/1 (advt.) Exactly what the discerning driver needs, superheterodyne performance in a package the size of a cassette tape. 2003 Daily News (N.Y.) (Nexis) 29 July 28 He was a reassuring weekly constant on everyone's big superheterodyne living room radio for more than 20 years. B. n. A superheterodyne receiver. ΘΚΠ society > communication > telecommunication > radio communications > radio equipment > [noun] > radio set > receiver > types of crystal receiver1910 heterodyne1915 self-heterodyne1915 crystal set1921 crystal radio1922 superheterodyne1922 superhet1924 battery-receiver1928 battery-set1930 mobile unit1961 1922 Q.S.T. July 7/1 Super-regeneration is..the method that makes two tubes do all the work that ten used to do in the super-heterodyne. 1944 Pop. Sci. Jan. 157/1 Let's suppose you have an A.C.-D.C. superheterodyne with a 12SA7 converter. 1965 Wireless World July 336/2 The various oscillators in superheterodynes have all set their own problems. 2010 C. Drentea Mod. Communications Receiver Design & Technol. iii. 13 Today there are several types of superheterodynes, and their mixing schemes dictate their terminology. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online June 2022). < adj.n.1920 |
随便看 |
|
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。