Measurements 15
Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide 267
The Full Screen measurement interval variation measures the value on all
displayed data points.
The N Cycles measurement interval variation measures the value on an integral
number of periods of the displayed signal. If less than three edges are present, the
measurement shows "No edges".
The X cursors show what interval of the waveform is being measured.
FFT Analysis Measurements
• “Channel Power" on page 267
• “Occupied Bandwidth" on page 268
• “Adjacent Channel Power Ratio (ACPR)" on page 268
• “Total Harmonic Distortion (THD)" on page 269
Channel Power
Channel Power measures the spectral power across a frequency range.
The center frequency used in the measurement is the one defined for the FFT
function, and the FFT span specifies the frequency range.
When this measurement is tracked with cursors, the cursors are at the far left and
right edges of the graticule.
T
Negative area
N cycles
Positive area
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