Hi,

I have a double balun front end to an ADC that I am trying to characterize for Phase Unbalance. I am using the PNA N5230C. I already have done the cal on the machine. But I am having some trouble doing the data processing on it to arrive at the phase unbalance results. The input is at port1, the output positive at port3 and output negative at port4. I would appreciate it if somebody could give me instructions on how to calculate the phase unbalance.

Thanks

Umesh

I have a double balun front end to an ADC that I am trying to characterize for Phase Unbalance. I am using the PNA N5230C. I already have done the cal on the machine. But I am having some trouble doing the data processing on it to arrive at the phase unbalance results. The input is at port1, the output positive at port3 and output negative at port4. I would appreciate it if somebody could give me instructions on how to calculate the phase unbalance.

Thanks

Umesh

Thanks

Umesh

Thank you for the response. I am displaying the "unbal" trace in Unwrapped Phase format, but when I save the data into a CSV file, the numbers are still in "wrapped" format. Is there a reason why it should do this?

Thanks

Umesh

To get around this, change the Save Data As to save "displayed traces" and in "displayed format". I -think- this will preserve the "unwrapped-phase" numbers.