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power sweep with ENA E5070B

Question asked by santipito on Oct 16, 2008
Latest reply on Oct 16, 2008 by Dr_joel
Hi, I want to compare my result of the analyzer with other S parameters results in an amplitude sweep (volts) of a simulation. For that I have to convert the power in amplitude. If I measure the amplitude that gives the analyzer with an osciloscope  it seems that the analyzer must have a R=1600. For example 10 dBm are 4v and -22.04 dBm are 100mv. Why is that? It is not supposed that the equivalent excitation in volts depends on the load (the circuit that I want to analyze)? I get always the same levels