| 摘要 |
According to one embodiment of the invention, a system for testing electronic devices includes a first RF source operable to output a first signal, a second RF source operable to output a second signal, a combiner coupled to the first and second RF sources and operable to combine the first and second signals to create a third signal, one or more down converters operable to receive respective output signals from respective electronic devices and create respective down converted signals, and a set of switches operable to switch the second RF source to a local oscillator function that couples to the one or more down converters for inputting respective reference signals into the one or more down converters.
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