Tektronix DPO4000 Bedienungsanleitung PDF herunterladen (Seite 172)

100

101

Commands Listed in Alphabetical Order

Syntax

DISplay:PERSi

stence {< NR3>|CLEAR|AUTO| MINImum|INFInite}

DISplay:PERSistence?

Arguments

<NR3> speciﬁes the time of the persistence.

CLEAR resets the persist time count down and clears the display of acquired points.

INFInite displays waveform points until a control change resets the acquisition

system. When persistence is set to inﬁnite, it does not mean that the brightness

of any pixel should never decrease. The brightness of a pixel is proportionally

dependent on the ratio between its intensity, which does NOT decrease at inﬁnite

persistence, and the maximum value of intensity of any pixel on the screen. Thus,

if a particular pixel gets hit less often than others, its brightness will decrease over

time. It will become less bright relative to the pixels that get hit often.

AUTO speciﬁes that the oscilloscope automatically determines the

best waveform persistence based on the value of waveform intensity

(DISPLAY:INTEnsITY:WAVEFORM)

MINImum speciﬁes that the waveform persistence is set to the minimum value

of 0.0E0.

Examples

DISPLAY:PERSISTENCE 3 speciﬁes that the waveform points are displayed

fading for 3 seconds before

they completely disappear.

DISplay:STYle:DOTsonly

Turns on or off the dots-only mode for the waveform display.

Group

Display

Syntax

DISplay:STYle:DOTsonly {ON|OFF|<NR1>}

DISplay:STYle:DOTsonly?

Arguments

ON or <NR1> ≠ 0 turns on the dots-only display.

OFF or <NR1> = 0 turns off the dots-only display.

D<x>

Sets or returns parameters for digital channel <x>, where x is the channel number.

Group

Vertical

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