WAVECONTROL SMP2, User Manual

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6.1.2. FFT mode - frequency domain measurements
This function is only available with a selective probe, such as the WP400 ,
WP400-3 or the WPH-DC .
Frequency domain measurements contain frequency information on the
analysed field, obtained through calculation of the FFT of the signal.
Each frequency measurement (FFT) contains 400 points. The capacity of the
SMP2 allows storage of over 1,000 frequency measurements.
Note: In this mode the FFT graph is shown on the screen and you can use the cursor
to select a frequency. The total RMS and peak field values are shown above the
graph. Those values represent the whole field across the full bandwidth of the probe.
The selected SPAN only affects the display of the FFT graph and does not affect the
total shown on the screen.
Total value (span independent)
RMS and Peak double display
FFT graph (span dependent)
User’s Manual Electromagnetic Field Meter SMP2 P. 37