The Digital Battlespace Environment Simulator (DBES) is a novel large-scale digital wireless channel emulator capable of running scenarios that emulate real world scenarios to evaluate actual wireless devices in the lab. Running an in-lab test with the DBES is generally 10% the cost of it’s comparative real-world field test and the findings are typically identical. In addition, it is extremely repeatable with devices reporting less than 1 dB difference from run to run. The DBES can currently connect 64 wireless devices in an all-to-all connectivity scheme and reproduce real-world channel effects (motion, Doppler, fading, multipath, etc). It is government developed and owned (source code entirely GOTS and all hardware is COTS or GOTS).