clear channel
noun Radio.
a radio broadcast channel cleared for long-distance broadcasting during nighttime hours.
a broadcast channel free of undesirable interference.
OTHER WORDS FROM clear channel
clear-chan·nel, adjectiveWords nearby clear channel
clear as a bell,
clear as crystal,
clear as mud,
clear away,
clear cell,
clear channel,
clear ice,
clear layer of epidermis,
clear off,
clear one's name,
clear out