Thales announced this week that it recently completed the early operational assessment (EOA) for the development of the Joint Tactical Radio System (JTRS) Cluster 2 handheld radio. The EOA is a user-led field evaluation of production hardware used in the development of JTRS Cluster radios. Thales is adapting its MBITR software-defined radio to comply with JTRS SCA version 2.2 and its associated security supplement, the company said. The Software Communications Architecture (SCA) is a set of specifications that govern the interaction of hardware and software components in a software-defined radio and control the radio’s functions.