ÖVE/ÖNORM EN 301842-4 V1.3.1:2015-06
Действует
VHF air-ground Digital Link (VDL) Mode 4 radio equipment - Technical characteristics and methods of measurement for ground-based equipment - Part 4: Point-to-point functions (ETSI EN 301 842-4 V1.3.1 (2015-04))