This SDR is targeted for data communication where secure point-to-point to multi-point links are established that mostly finds its way in defense networks for tactical communications. The architecture supports easy application interface (integration with data link layer) via a packet interface. The radio card supports wide band RF with tunable front-end filters. The system uses flexible design, and it provides fast turnaround time for any customization. The system also provides user interface application for programmability of the system parameters for the required configuration.