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Making 75 Ohm Measurements with a 50 Ohm VNA

There may be instances where you need to make a 75 Ohm measurement, but you don’t have to have a 75 Ohm VNA. It is possible to use a 50 Ohm VNA to make accurate 75 Ohm measurement. All that is required is to use the proper physical adapters and use a 75 Ohm calibration kit to perform calibration. Senior RF Design Engineer Brian Walker describes how to do such a measurement.