A1 海区
专业术语 / 海区介绍
96阅读2021-11-23
An area within the radiotelephone coverage of at least one VHF coast station in which continuous DSC alerting is available, as may be defined by a Contracting Government.(Nominally in the range of 20-50 n miles)
指至少由一个具有连续DSC报警能力的甚高频(VHF)海岸电台的无线电话所覆盖的区域,该区域可由各缔约国政府规定。