ETSI EN 302 842-4-2010 VHF空-地和空-空数据链路(VDL)模式4无线电设备.航空移动(空载)设备的技术特性和测量方法.第4部分:点对点功能(版本1.2.2)
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 V1.2.2