NF Z85-842-4*NF EN 302842-4:2015 甚高频地空和空空数字链路(VDL)模式4无线电设备 航空移动(机载)设备的技术特性和测量方法 第4部分:点对点函数(V1.3.1)
VHF air-ground and air-air Digital Link (VDL) Mode 4 radio equipment - Technical characteristics and methods of measurement for aeronautical mobile (airborne) equipment - Part 4 : Point-to-point functions (V1.3.1)