A method and system for measuring a device under test are disclosed. Some embodiments include a distributed channel emulation system implementing a downlink channel, including at a central location, an emulator core configured to introduce an impairment in each of at least one transmit signal to produce at least one impaired signal for each of at least one emulated channel. The system includes, at a remote location, for each of at the least one emulated channel, an up-converter configured to up-convert an impaired signal of the emulated channel to produce a radio frequency, RF, signal.