单词 | guard band |
释义 | guard bandnoun Radio.an unassigned range of radio frequencies either just above or just below the band of frequencies required for the signal transmitted by a broadcasting station. It helps to prevent interference in receivers between signals from different stations. Origin of guard bandFirst recorded in 1955–60 Words nearby guard bandguaranty, Guarapuava, guard, Guardafui, guardant, guard band, guard cell, guard dog, guard duty, guarded, guardee Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for guard bandguard band nouna space left vacant between two radio frequency bands, or between two tracks on a magnetic tape recording, to avoid mutual interference Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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