Forums › VNA Series Discussions › VNA400: questions about calibration in through mode › Reply To: VNA400: questions about calibration in through mode
November 21, 2025 at 6:47 am #248740
Participant
Hi Andrew,
thank you for the answer.
when i finished the calibration i didn’t save the relative file, so the S21 parameter was not set to 0. Saving the configuration file, the S21 parameter is set to 0.
I have another question:i have to measure a dut with a gain of about 70 dB. To be able to perform this measurement i need to insert a fixed 50 dB attenuator at the output of port 1. How can I include the presence of the attenuator in the calibration setup so that the S21 parameter that I am going to measure is exactly equal to 70 dB?
Thank you in advance,
Matteo
