Tektronix TDS3000C Series User Manual

Reference
50 Ω Protection. If you select the 50 Ω termin ation resistan ce, the
maximum vertical scale factor is limited to 1 V/div. If you apply
excessive input voltage, the oscilloscope au tomatically swi tches to
1MΩ termination resistance to protect the internal 50 Ω termination.
Ref Button
Push th e Ref button to show the reference menu. Push one of th e
submenus to display a reference waveform or make it the selected
reference waveform.
Bottom Side D escription
Save Ch1 to Ref1 Saves channel 1 to Ref 1.
Save Ch2 to Ref1 Saves channel 2 to Ref 1.
Save Ch3 to Ref1 Saves channel 3 to Ref 1.
Save Ch4 to Ref1 Saves channel 4 to Ref 1.
Ref 1
Save Math to
Ref1
Saves the math w a veform to Ref 1.
Ref 2 , Ref 3,
Ref 4
Identical settings for the reference waveforms Ref 2, Ref
3, and Ref 4.
Key Points
Selecting and Displaying Reference Waveforms. You can display all fo ur
reference waveforms at the sam e tim e. Push the submen u button to
select a particular reference waveform. The selected waveform appears
brighter than other displayed reference waveforms.
TDS3000C Series O scilloscope User Manual 143

Tektronix TDS3000C Series Specifications

General

Brand	Tektronix
Model	TDS3000C Series
Category	Test Equipment
Language	English