56
Keysight 1000B Series Oscilloscopes User’s Guide
2
Displaying Data
6
Press
Display
to toggle between a “Split” screen display and a “Full Screen”
display.
7
Press
and turn the entry knob to adjust the vertical position of the
FFT waveform.
8
Press
and turn the entry knob to adjust the vertical scale of the
FFT waveform.
9
Press
Scale
to toggle between “V
RMS
” and “dBV
RMS
” units.
10
Use the horizontal position knob to adjust the frequency per division.
The frequency scale is displayed on the screen. Use this to display the
frequencies associated with the peaks in the FFT waveform.
Table 6
FFT Window Characteristics
Window
Characteristics
Best for measuring
Rectangle
Best frequency resolution, worst
magnitude resolution. This is essentially
the same as no window.
Transients or bursts, the waveform
levels before and after the event are
nearly equal. Equal-amplitude sine
waves with fixed frequencies.
Broadband random noise with a
relatively slow varying spectrum.
Hanning,
Hamming
Better frequency, poorer magnitude
accuracy than Rectangular. Hamming
has slightly better frequency resolution
than Hanning.
Sine, periodic, and narrow-band
random noise. Transients or bursts
where the waveform levels before and
after the events are significantly
different.
Blackman
Best magnitude, worst frequency
resolution.
Single frequency waveforms, to find
higher order harmonics.
NOTE
To display FFT waveforms with a large dynamic range, use the dBVrms scale. The dBVrms
scale displays component magnitudes using a log scale.
Summary of Contents for 1000B Series
Page 1: ...Keysight 1000B Series Oscilloscopes User s Guide ...
Page 12: ...12 Keysight 1000B Series Oscilloscopes User s Guide Contents ...
Page 16: ...16 Keysight 1000B Series Oscilloscopes User s Guide Tables ...
Page 36: ...36 Keysight 1000B Series Oscilloscopes User s Guide 1 Getting Started ...
Page 124: ...124 Keysight 1000B Series Oscilloscopes User s Guide 5 Saving Recalling and Printing Data ...
Page 138: ...138 Keysight 1000B Series Oscilloscopes User s Guide 6 Oscilloscope Utility Settings ...