06-20-2011 10:44 AM
thanks Charles!!
taht worked (there was an error - you connected the first 'F' to a void input rather than one above).
I now see the correct FFT 'pattern' on the screen, but the scales are wrong. The X should be in Hz and the Y in dBV. Any idea how to fix this? (I have no idea about Labview really). I tried changing the Y to log but lost the trace!
Thanks again
Tony
06-21-2011 04:46 AM
Hi Tony,
I think the amplitude of FFT waveform displayed in LabVIEW is exactly the one in the scope screen. The amplitude unit should be the one you have manually set or a default unit in scope.
If you would like to change the graph control axis name, please double click the name text and edit it directly.
Yours,
Charles