Is there any way to measure the frequency of a waveform generated by LTspice?
I know there's a fast Fourier transform function and display, but I'd really just like to know the (approximate) frequency of a particular waveform.
hi cz,
Run the sim and create a plot.
1. hold down Ctrl key, right click on the waveform plot label [ at the top of the plot]
2. A small window will open, use the 'Attached Cursor' drop down box, select 1st & 2nd.
3. Two dashed 'axis' lines will appear on the plot, name '1' and '2'
4. place your cursor on '1' and hold down the left mouse key and move the '1' dashed line to a position on the plot waveform. Then do the same with '2' dashed line, place that one cycle away on the waveform.
5. There is a small window, bottom right of your screen.
6. it shows the Freq and other info on the '1' and '2' dashed line positions.
7. note also it shows the amplitude at the selected points.
BTW: I have that TwinTosc .asc if you want to play with it.