Math Operators; Add Or Subtract - Agilent Technologies 4000 X-Series User Manual

4
Math Waveforms
Math function

add or subtract

multiply
d/dt

FFT
* When the FFT source is channel 1, 2, 3 or 4, FFT units will be displayed in dBV when channel
units is set to Volts and channel impedance is set to 1 M . FFT units will be displayed in dBm
when channel units is set to Volts and channel impedance is set to 50 . FFT units will be
displayed as dB for all other FFT sources or when a source channel's units has been set to Amps.
A scale unit of U (undefined) will be displayed for math functions when
two source channels are used and they are set to dissimilar units and the
combination of units cannot be resolved.

Math Operators

Math operators perform arithmetic operations (like add, subtract, or
multiply) on analog input channels.
•
•
Add or Subtract
When you select add or subtract, the Source 1 and Source 2 values are
added or subtracted point by point, and the result is displayed.
You can use subtract to make a differential measurement or to compare
two waveforms.
92
dt
(square root)
"Add or Subtract"
"Multiply or Divide"
Units
V or A
2
V , A
V/s or A/s (V/second or A/second)
Vs or As (V-seconds or A-seconds)
dB* (decibels). See also
page 103.
1/2
V
on page 92
on page 93
Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
2
, or W (Volt-Amp)
"FFT Units"
1/2 1/2
, A , or W (Volt-Amp)
on