Reference
Trigger is set to Auto mode and minimum holdoff
Trigger is set to Edge type, DC coupling, and r isin g slope
B trigger is turned off
XY display form at is turned off
Channel 1 is turned on and selected if no active channels are in use
If you push the Autoset button by accident, you can undo it with these
steps:
1. Push th e Acquire Menu button.
2. Push the Autoset screen button and then push the Undo Autoset
screen button.
Waveform Intensity
The Waveform Intensity knob adjusts the intensity of the waveforms in
the display.
The term Digital Phospho r represents the way this control simulates the
intensity control of an analog oscilloscope. A t maxim um int ensity, al l
waveform points are displayed at full brightness. As you decrease the
intensity, you can see intensity grading in the wav eforms. The brightest
parts of the waveform are the points m ost frequently acquired; the
dimmer parts represent less frequently acquired points. All points decay
in inten sity over time unless the display persistence is set t o infinite.
Use a medium intensity setting to get an analog-oscilloscope view
of time -v arying signals and those containing modulation. Use the
maximum i nten sity setting to view the sign als the way m ost digital
oscilloscopes display them.
You can turn on display persistence to slow or prevent the decay of the
waveform points. With persistence on, you can simulat e the function of
an analog storage oscilloscope. (See page 75, Display.)
NOTE. The waveform inte nsity may change when you change oscilloscope
acquisition modes or horizontal scale settings. Use the INTENSITY knob to
readjust waveform intensity.
TDS3000C Series O scilloscope User Manual 61
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