Saving the results of the .four command

[sandrohv]

Hey guys,

Say, I wanted to step the frequency at which I run a distortion test.
Something like: .step param freq list 1k 2k 5k 10k 20k
where freq is the frequency of the input sine wave.
After each frequency step, the .four command is run.

Now, is there a way to store the results from a .four command so that they can be plot vs. the frequency step?

Thanks!, Sandro

 

[radtech]

You should be able to select the .FOUR output in the error log (ctrl+l) and copy it using crtl+c, then past into a text editor.

Also the data will be saved in the log file that should be in the folder with your .asc file, you can access this file after running the simulation, but it will be deleted when you close your simulation if "Automatically delete .raw files" is checked under Tools/Control Panel/Operation, so you can either uncheck that (it will also leave behind the large .raw files) or you can leave it checked and copy the .log file or the data from it before it gets deleted when closing your simulation.

 

[sandrohv]

Thanks Radtech.
So what I currently do is what you describe. I copy the contents from the log file to an Excel that is setup to do the plots for me (See attached). I was hoping for a 'Within LTSpice' solution though.