ETSI EN 301 688-2000 电磁兼容性和无线频谱事务(ERM).在121.5 MHz和123.1 MHz频率操作的固定和便携VHF设备的技术特性和测量方法(版本1.1.1)
Electromagnetic Compatibility and Radio Spectrum Matters (ERM); Technical Characteristics and Methods of Measurement for Fixed and Portable VHF Equipment Operating on 121,5 MHz and 123,1 MHz (V1.1.1)