noun Radio and Television.
the range of frequencies that pass with a minimum of attenuation through an electronic filter.
Origin of passband
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the band of frequencies that is transmitted with maximum efficiency through a circuit, filter, etc
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