DIN EN 302842-4-2011 VHF空对地和空对空数字链接(VDL)4模无线电设备的技术特性和航空移动(空运)设备的测量方法.第4部分:点对点功能(英文版本EN 302842-4 V1.的核准本
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 (Endorsement of the English version EN 302842-4 V1.