guard band

noun 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.

Nearby words

  1. guarantor,
  2. guaranty,
  3. guaraní,
  4. guarapuava,
  5. guard,
  6. guard cell,
  7. guard dog,
  8. guard duty,
  9. guard hair,
  10. guard of honor

Origin of guard band

First recorded in 1955–60 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for guard band

guard band


a 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