Teledyne LeCroy WaveExpert 100H Operators Manual - Manual (Page 324)

Operator’s Manual
322
WE-OM-E Rev A
These examples were made with two different instrument setups: in the second, the FFT was
zoomed vertically. The graph has a red line to represent the theoretical envelope for the peaks.
This has great potential for testing the transmission characteristics of amplifiers and filters, since
the output can be compared with a theoretical curve. Furthermore, if the output is divided by the
curve, the result for a perfect DUT would be a horizontal line, which is easy to inspect. The example
below has been magnified vertically by a factor of ten. The rise at the right side occurs because the
signal is descending into the noise.