本规范描述了声学冰雹装置（Light）（以下简称AHD）的性能要求和验证程序。当要求或验证适用于整个系统时，将使用术语AHD。单个部件名称将用于该部件特有的要求或验证。

This specification describes the performance requirements and verification procedures for the Acoustic Hailing Device, (Light) hereafter referred to as the AHD. The term AHD will be used when requirements or verifications apply to the entire system. The individual component name will be used for requirements or verifications that are unique to that part.