| 单词 | single side band | 
| 释义 | > as lemmassingle side band   single side band  n. Telecommunication either of the two side bands normally associated with the carrier of a broadcast transmission; frequently attributive with reference to a method of transmission in which only one side band is transmitted, the other being suppressed along with the carrier; also short for  single side band transmission. ΚΠ 1923    Proc. IRE 11 40  				It is of particular importance for long wave radio telephone transmission where the width of a single side-band is so large a fraction of the total frequency range available that the number of independent channels is at best very limited. 1923    Proc. IRE 11 41  				The use of single side-band transmission has probably progressed farthest in connection with carrier telephony over wires. 1959    K. Henney Radio Engin. Handbk. 		(ed. 5)	 xviii. 8  				In most commercial single-side-band transmitters the SSB signal is generated in an SSB generator at a frequency in the range of 100 to 500 kc. 1976    Electronics Today Internat. July 10/3  				In areas around cities, these channels are congested and so many stations have changed over to Single Sideband, which gives higher communications efficiency and an extra 48 channels. < as lemmas  | 
	
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