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nsaspook
#2
Jan31-13, 05:42 PM
P: 594
When you measure a modulated waveform there are several ways to picture the changes. If you only look at the time vs level domain it's hard to see the changes. What you need is a way to see the other domains of the signal.

http://www.naic.edu/~phil/hardware/M...r_basis_of.pdf

https://www.youtube.com/watch?v=Lp6sT-n55N4

With today's electronics some pretty cool stuff can be made for cheap.

http://www.youtube.com/watch?v=ZuRcaxpbYCw