Telemetrix products from RT Logic enable full-loop communications system testing at radio frequency or intermediate frequency without requiring actual flights. Both systems include precision channel simulation, extensive visualization, and easy development of sophisticated scenarios for stationary testing of communications links involving moving objects. Operators can conduct range readiness tests with the Telemetrix T400RTS by creating RF signals at tracking sites that match what will be received during an actual mission. The tracking sites then perform their usual range functions but with the T400RTS-generated RF. The T400UTM is focused on UAV, target, and missile communications test applications. The instrument enables in-depth receive-and-transmit-system testing from proof-of-concept, through research and development, to intermediate and final production test.