FAQs from Rohde & Schwarz

Effect of linear or logarithmic x-axis scaling for the transducer factor?

Description:

I’m wondering what’s the effect of linear or logarithmic x-axis scaling for the transducer factor?

Has this something to do with how the data points are interpolated during a linear or logarithmic sweep?
How does it work?
What would be the impact if I set the X-axis to linear when I add an antenna correction factor?

Resolution:

Yes, it defines the way how the FPL interpolates between two points of the transducer.

To show the effect I have created a transducer with only two points (unit dB):

0Hz 0dB
7.5GHz 50dB

In the next picture you can see the impact of a logarithmic transducer:

Effect of linear or logarithmic x-axis scaling for the transducer factor

and the impact of a linear transducer:

Impact of a linear transducer: