Abstract: A system for facilitating interoperability between a plurality of disjoint radio systems across a digital network includes one or more local gateways communicating with a network operations center. Each of the local gateways is associated with at least one radio system, and includes an interface to the digital network, a transceiver receiving wireless communications on the associated radio system, and a router configured to route at least some of the data received from the transceiver on the digital network. The network operations center processes data received from the various local gateways and forwards the processed data to the local gateways associated with the appropriate recipients. Local gateways may also be configured to convert legacy communications to digital formats, and/or may provide digital access to multiple disjoint wireless systems. The network operations center may further provide access security, network management, key management and/or other features.

Abstract: The data distribution infrastructure includes user application systems; infrastructure subsystems; a run-time infrastructure (RTI); a communications subsystem; and, a connection subsystem. A first user application system is operable by a first user for communicating data with a second user. The first user application system is non-simulated, and includes a first infrastructure interface element. A second user application system is operable by the second user for communicating data with the first user application system. The second user application system is also non-simulated and includes a second infrastructure interface element. A first infrastructure subsystem provides interoperability between the first user application system and the second user application system.