Vertical Controls
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TDS3000 Series User Manual
50 W Protection. If you select the 50 W termination resistance, the
maximum vertical scale factor is limited to 1 V/div. If you apply
excessive input voltage, the oscilloscope automatically switches to
1 MW termination resistance to protect the internal 50 W termination.
Math Button
Push the MATH button to define the math waveform using the math
menu. Also push the MATH button to display or select the math
waveform. See the TDS3FFT FFT Application Module User Manual
if you have that application module installed.
Bottom Side Description
Dua
f
Ma
h
Set 1st Source to Selects the first source waveform.
Set Operator to Selects the math operator: +, –, ,
or B
Set 2nd Source to Selects the second source waveform.
Key Points
Dual-Waveform Math. For the dual-waveform math operations, the two
source waveforms interact with the math operators in the sequence
shown below.
Operation Expression of math waveform
+ Source 1 + Source 2
– Source 1 – Source 2
Source 1 Source 2
B Source 1 B Source 2
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