.step oct PsySc 1 64 2 would make the parameter PsySc take on values of 1, 1.414, 2, 2.828, 4,..., 45.26, 64. The 2 means 2 steps per octave, starting at 1, ending at 64.
.step dec PsySc 1 1000 2 would make the parameter PsySc take on values of 1, 3.1622, 10, 31.622, 100, 316.22, 1000. The 2 means 2 steps per decade, starting at 1, ending at 1000.
When you plot, you can elect to make either the X-axis or Y-axis log or linear.
Once the plot is up, you can elect to add none, one, or two cursors.
The main point I wanted to show you is that a .DC analysis is much more useful than a .TRAN analysis in this case...
Ok, 3 questions:
1 - Where does those values of 1.414, 2.828, etc comes from???
2 - Where does those values of 3.1622, 31.622, etc comes from???
3 - Also I would like to know if there is any tip that tells us when to use what type of simulation!