telegraphic duties, radio operator ☊ 
báo vụ ☊ to jam (a radio transmission) ☊ gây nhiễu ☊ to jam (a radio broadcast, e.g.) ☊ phá sóng ☊ wave, radio wave ☊ sóng ☊ broadcasting station, radio station ☊ đài phát thanh ☊