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Synchrophasor-based Wide-Area Monitoring and Control Systems (WAMC) are becoming a reality with increased international research and development. Several monitoring and control applications based on these systems have been proposed, and although with a relative small adoption, they are currently supporting the operations of some large transmission system operators. It is expected that the continued research and development of phasor data applications will enable the miracle of “Smart Grids” at the transmission level. The authors have realized that this can be achieved in timely fashion only if a research and development platform is developed to simultaneously address issues regarding information and communication infrastructures, and phasor data applications. This paper discusses the preliminary development, and deployment of an experimental wide-area monitoring and control platform in which several basic applications have been implemented, and that in the future will allow for the implementation and testing of envisioned applications. At its current stage, the platform allows both online monitoring and off-line analysis. In the future, it will be the cornerstone to a wider platform enabling research on phasor data applications that intrinsically account for ICT aspects.