COTS components for a large scale UAS demonstrator datalink system

UAS demonstrators see a wide use as testbeds to verify new concepts in a real flying environment. For avionics testing payloads and new technologies are flown on well-proven platforms. If such a platform cannot be adopted or provided, new developments try to build up on convenient products, which is very often COTS. This paper explains the incorporation of COTS parts in the communication system of a UAS Demonstrator and explains the impact on the air vehicle and system design. Furthermore the challenges and opportunities of such an approach are weighed up.