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.
Origin of guard band
First recorded in 1955–60
Words nearby guard band
guarantor,
guaranty,
guaraní,
guarapuava,
guard,
guard band,
guard cell,
guard dog,
guard duty,
guard hair,
guard of honor
British Dictionary definitions for guard band
guard band
noun
a space left vacant between two radio frequency bands, or between two tracks on a magnetic tape recording, to avoid mutual interference