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单词 s-band
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S-band
12. S-band: the range of microwave frequencies between 1550 and 5200 megahertz, used for radio communication and radar.
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society > communication > telecommunication > [noun] > signal > frequency or band of frequencies > band of frequencies
sideband1921
frequency band1922
passband1922
waveband1923
S-band1946
baseband1952
guard band1956
vestigial side band1966
1946 Radar: Summary Rep. & Harp Project (U.S. National Defense Res. Comm., Div. 14) 143/2 S-band. Refers to wave~lengths of the order of 10 cm.
1952 J. F. Reintjes & G. J. Coate Princ. Radar (ed. 3) i. 33 Radar equipment operating..in the S, X, and K bands is called microwave radar.
1965 R. F. Filipowsky & E. I. Muehldorf Space Communications Techniques ii. 111 S-band high power transmitters in the 2000 to 2400 Mc range are being provided for future Earth to spacecraft deep-space communications, with power ratings from 10 KW to 100 KW.
1970 N. Armstrong et al. First on Moon xi. 257 I haven't heard a word from those guys, and I thought I'd be hearing them on your S-band relay.
1974 Encycl. Brit. Macropædia XV. 370/1 Early in the war, the British had developed an airborne S-band..radar for bombing, called the H2S.
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