Atec Tektronix-VM6000 Manual de usuario descargar pdf (Pagina 5)

Automated Video Measurement Set — VM6000

Multiburs

t Measurement Results Display (Option SD and HD)

Fast, Accurate, and Reliable Automated Video

Measurements

The VM6000 is differentiated from conventional oscilloscopes, waveform

monitors, or m odular instrume nts by its automated video measurem ents.

Automated measurements deliver beneﬁts in terms of speed, accuracy, and

repeatability with ease of use that almost obsoletes manual approaches,

and even user

-developed programs. Automating signal conﬁguration,

signal acquisition, a nd data analysis enables robust and re liable operation,

impervious to signal variations. The VM6000 a pplies optimized vide o

measurement algorithms and extended data processing to deliver accuracy

and reliability that outperforms even the most skilled expert user.

AutoFormatDetect–Simpliﬁes operation by autom atically detecting

the format applied to the instrument. Allows multiple formats to be tested

automatically in sequence witho ut the need for user intervention.

Auto Conﬁgu

ration –

By selecting the applicable form at and desired

measurements from the conﬁguration menu, the VM6000 automatically

conﬁgures gain, offset, and time scale based on th e nominal signal values

expected. Variations from nominal values a re a ccommodated w ith auto

range capabilities.

Auto Range – The auto range feature enhances accuracy and enables

automated measurem ent of signals that vary from nominal levels. This

feature automa

tically optimizes gain and offset ba sed on the signal

conditions when they deviate from nominal, enabling the instrument to

consistently pre se nt the best results possible.

Automatic Special Position – The VM6000’s automatic special po sition

function ensu

res that automated measurements are robust to temporal

signal distortions, alternate test signals, and alternate output display modes.

Always active, this feature identiﬁes appropriate test signal events and

sets measurement cursor locations optimally to ensure consistent and

meaningful test results. Mea surement location selections made by the

VM6000 can be analyzed or documented w ith the selectable feature

included in th

e report generat or.

Auto Mode – Auto mode enables users to instruct the instrument to make

one, selected, or all automated video measurements with a single a run

command. While functioning in Auto mode, the instrument automatically

selects the a

ppropriate test signal line, utilizes preset measureme nt

conﬁgurations and averag ing selected by the user, an d complet es each

measurement. Auto mode also includes multiline measuremen ts capability,

enabling users to measure selected parameters on m any or all lines in a

frame with a s ingle run command.

Measurement Cursors (Sp ecial Position) – Options SD and HD address

requirement for custom s ignal analysis by enabling users to input

customized measurement locations for the Freq uency Response,

Levels, and Noise measurement parameters. For frequency response

measurements, users can select either timing location input or frequency

input to mak

e response measurements anywhere within the supported

video bandwidth utilizing a standard sweep signal. Input locations can

be further toggled within YPbPr signals to accommodate either 4:2:2 or

4:4:4 vide o. This enables detailed analysis of roll-off, frequency distortion,

identiﬁcation of spurs, and aliasing anywhere across the useful frequ ency

spectrum. Cursors for t he L evels parameter enable ﬂexible, automated

measuremen

t of 3 channel levels for 1-8 individual pedestals on a line, such

as can be fou nd with ARIB signals, MacBeth Charts, or other noncolor b ar

signals. Noise special position cursors allow temporal windowing for noise

measurements, enabling noise me asurements on signals such as color

bars, staircases, or camera test charts.

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