MSC.512(105) Performance Standards for Shipborne MF and MF/HF Radio Installations Capable of Voice Communication, Digital ive Calling and Reception of Maritime Safety Information and Search and Rescue Related Information 具备语音通信、数字选择性呼叫和接收海上安全与搜救相关信息功能的船载MF和MF/HF无线电装置性能标准