noun
: an electric filter designed to divide the band of frequencies available for carrier currents about midway using one portion of the band for east-to-west transmission and the other portion for west-to-east transmission
noun
: an electric filter designed to divide the band of frequencies available for carrier currents about midway using one portion of the band for east-to-west transmission and the other portion for west-to-east transmission
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012