日前,信息产业部无线电管理局向各省、自治区、直辖市无线电管理机构下发通知,要求进一步加强对450～470MHz频段的管理。目前,我国450～470MHz频段既安排了农村模拟无线接入系统频率,也安排了专用通信频率,用于中央党政机关、军队、铁路、公安等部门专用通信和一些企事业单位的 Recently, the Radio Authority of the Ministry of Information Industry issued a circular to the radio regulatory agencies of all provinces, autonomous regions and municipalities directly under the Central Government requesting further strengthening of the management of the frequency band of 450 to 470 MHz. At present, China’s frequency band of 450 to 470 MHz not only arranges the frequency of rural analogue wireless access systems, but also arranges special communication frequencies, which are used for the special communications of central party and government organs, the armed forces, railways, public security departments and some enterprises and institutions