Between 76 and 88 MHz. Official website of Nantong University shows that the listening frequency of CET-4 in Nantong University is 76 to 88MHz, which will not cause interference. Nantong University, referred to as Tongda, is located in Nantong City, Jiangsu Province. The school is a comprehensive university jointly established by the People's Government of Jiangsu Province and the Ministry of Transport, and it is a Class B construction university under the high-level university construction peak plan of Jiangsu Province.