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 1: Physical layer (ETSI EN 302842-1 V1.2.2 (2010-12))
Aerospace series - Nuts, anchor, self-locking, air resistant, sealing, floating, two lug, with counterbore, in alloy steel, cadmium plated, MoS2 lubricated - Classification: 900 MPa (at ambient temperature)/235 °C
Advanced Surface Movement Guidance and Control System (A-SMGCS); -- Part 6: Harmonised Standard for access to radio spectrum for deployed surface movement radar sensors; Sub-part 1: X-band sensors using pulsed signals and transmitting power up to 100 kW (ETSI EN 303 213-6-1 V3.1.1 (2019-07))
Airport Collaborative Decision Making (A-CDM) - Community Specification for application under the Single European Sky Interoperability Regulation EC 552/2004 (ETSI EN 303212 V1.1.1 (2010-06))
