民航飞行安全保障是关系到国家经济发展和广大群众生命财产安全的重要工作,航空无线电通信导航系统在飞行安全中发挥了重要作用。因此,民航无线电专用频率的安全使用是保证飞行安全的重要前提。近年来,由于国民经济的发展,各类无线电台(站)数量快速增长,电磁环境日趋复杂,导致航空无线电专用频率 Civil aviation flight safety and security are related to the country’s economic development and the masses of people’s lives and property safety important work, aviation radio navigation system in flight safety has played an important role. Therefore, the safe use of civil aviation radio frequency is an important prerequisite for ensuring flight safety. In recent years, due to the development of the national economy, the number of all kinds of radio stations (stations) has rapidly increased, and the electromagnetic environment has become more and more complicated. As a result, the frequency of radio for airlines