passband

[ pas-band, pahs- ]
/ ˈpæsˌbænd, ˈpɑs- /

noun Radio and Television.

the range of frequencies that pass with a minimum of attenuation through an electronic filter.

Origin of passband

First recorded in 1920–25; pass + band2

British Dictionary definitions for pass band

pass band

noun

the band of frequencies that is transmitted with maximum efficiency through a circuit, filter, etc