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This document specifies a method of determining the attenuation variation of an optical cable during mechanical bending under load at the maximum and minimum operating temperatures.

This document provides technical specification and verification methods to support compliance with Commission Delegated Regulation (EU) 2020/1058 of 27 April 2020 amending Delegated Regulation (EU) 2019/945 on unmanned aircraft systems and on third-country operators of unmanned aircraft systems. More specifically, it addresses compliance with class C5 accessories kit requirements. Even if security, including IT security, may be useful from an operational point of view, it falls outside the scope of this document. This document delineates how a product compliance for the C5 accessories performance and reliability of the safety equipment can be ensure. The specifications will ensure that the manufacturer’s C3 compliance is not altered by the accessories kit. This document only addresses UA with lift provided by rotary wings. Fixed wings, VTOL and other hybrid UA are out of this scope. Compliance with this document assists in complying with CE marking technical requirements. This document is only applicable for UA with energy sources based on electro-chemical technologies. Additional hazards that occur from the characteristics of the payload are excluded and are, conversely, under the responsibility of the UAS manufacturer and UAS operator.

This document is intended to stablish and define functional and performance requirements and associated tests for Galileo Timing Receivers. This document covers the following topics related to Galileo Timing Receivers: - GNSS constellations and frequencies processed: Galileo plus additionally GPS, with nominal mode being dual-frequency processing, - Time scales processed, including at least Galileo System Time and Universal Time Coordinate, - User dynamics, with two operation modes: static users with well-known and static antenna position and dynamics users with moving antenna, - Holdover devices, - Nominal and back-up modes, including single-frequency modes, single-constellation modes and holdover mode. - Processing of timing integrity information disseminated by the Galileo System, - Time Receiver Autonomous Integrity Monitoring processing, - Anti-jamming and anti-spoofing capabilities, including Automatic Gain Control monitoring and Galileo Open Service Navigation Message Authentication processing, - Robustness to multipath. In addition, this document gives guidelines for the installation and maintenance of the receiver, including antenna, cabling and receiver installation, initial and periodic receiver calibration, and periodic maintenance. On top of the functional requirements, performance requirements this document defines in terms of different key performance indicators such as: - Accuracy, availability, continuity and integrity requirements, - T-RAIM performances, including time to alert, - Holdover performances including maximum degradation of the timing solution with time and maximum holdover time, This document also gives a simple test suite to verify the most fundamental requirements of the Galileo Timing Receivers.