Hello,
Thank you for contacting National Instruments. I would like to apologize for the delay in responding to your support request.
It is my understanding that you need to tabulate your x-axis data from a frequency chart. In order for me to efficiently help resolve your question, can you please post a copy of the VI you are using as well as a more detailed explanation of your problem? Once I have a hard-copy of your program, I will be able to effectively help you find a solution.
Kind Regards,
Joe Des Rosier
National Instruments
