How to capture the CIR data from MDEK1001 Kit

I want do some spectrum analysis with mdek1001 kit.
how could i get the related data?

The CIR data isn’t the spectrum, it’s correlator output over time.

Maybe I made a mistake.
I’m sorry to trouble you, but do you know how to capture the CIR data of MDEK1001 Kit?
I’ll be very grateful if you can give me some advice.

Did anyone slove it?