According to Sohu, the listening frequency used in Nantong University's CET-6 is between 76 and 76-88 MHz, which refers to the radio frequency range used in the listening test. During the examination, candidates need to receive and listen to the audio content of the examination questions through the radio or other receiving equipment. This frequency range is to ensure that the audio transmission of the exam is stable and clear, so that candidates can accurately hear and understand the exam questions.