I am using E 5071 network analyzer for s-parameter measurement.
Q1. What is the default impedance of the analyzer? Is it 50 ohms?
Q2. Is there a high impedance probe that comes with it so the DUT sees a high impedance rather than a 50 ohms?
Nominal impedance is 50 ohms. The high impedance probe that was originally intended for this analyzer is the 85024A probe. In this case, the probe is connected to the 50 ohm port and becomes a high-impedance receiver (it cannot be used to source a signal). It has a small, high-impedance amplifier in the tip that connects directly to the DUT. I think it has about 0.7pF and 1Mohm input impedance.
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