AEMC OX7102-CII, User Manual

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Oscilloscope Mode - The "Horizontal" Menu
IV - 72 SCOPIX Oscilloscopes
Oscilloscope Mode (cont'd)
Horizontal unit
This is indicated instead of the time base and is calculated according to the
scanning coefficient:
Unit (in Hz/div.) =
Vertical unit Two possibilities are offered by the sub-menus:
a) Linear scale: by selecting the FFT menu and then the linear scale
•
in V/div. =
b) Logarithmic scale: by selecting the FFT menu and then
log scale (logarithmic)
•
in dB/div. = by assigning 0 dB to a signal with an effective
amplitude of 1 in the time representation
The vertical position indicator of the representation is at -40 dB.
Graphic
representation
The FFT representation indicates symmetry in relation to the frequency
origin; only positive frequencies are displayed.
Square signal
FFT with a Hanning window and a log
scale
FFT with a rectangular window and a
linear scale
12.5
scanning coefficient
unit of the signal in its time representation (V/div.)
2