D-TA’s compact and highly cost-effective Multi-Channel Radar Simulator (MRSE) products provide an efficient way to test Radar Warning Receivers (RWRs) (or Electronic Support Measures (ESM) receivers) and train operators. D-TA’s I/Q streaming approach results in a totally software-based architecture for simulating any type and any number of threat signals for any antenna array type (with 2, 4, 6, 8, 16 or more antenna elements) from any signal direction (AoA). Multiple threat signals, each coming from a different direction can be simultaneously generated.