Atec Tektronix-VM6000 - Manual (Page 5)

Automated Video Measurement Set — VM6000
Multiburst Measurement Results Display (Option SD and HD)
Fast, Accurate, and Reliable Automated Video
Measurements
The VM6000 is differentiated from conventional oscilloscopes, waveform
monitors, or modular instruments by its automated video measurements.
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, and data analysis enables robust and reliable operation,
impervious to signal variations. The VM6000 applies optimized video
measurement algorithms and extended data processing to deliver accuracy
and reliability that outperforms even the most skilled expert user.
Auto Format Detect – Simplifies operation by automatically detecting
the format applied to the instrument. Allows multiple formats to be tested
automatically in sequence without the need for user intervention.
Auto Configuration – By selecting the applicable format and desired
measurements from the configuration menu, the VM6000 automatically
configures gain, offset, and time scale based on the nominal signal values
expected. Variations from nominal values are accommodated with auto
range capabilities.
Auto Range – The auto range feature enhances accuracy and enables
automated measurement of signals that vary from nominal levels. This
feature automatically optimizes gain and offset based on the signal
conditions when they deviate from nominal, enabling the instrument to
consistently present the best results possible.
Automatic Special Position – The VM6000’s automatic special position
function ensures 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. Measurement location selections made by the
VM6000 can be analyzed or documented with the selectable feature
included in the report generator.
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 appropriate test signal line, utilizes preset measurement
configurations and averaging selected by the user, and completes each
measurement. Auto mode also includes multiline measurements capability,
enabling users to measure selected parameters on many or all lines in a
frame with a single run command.
Measurement Cursors (Special Position) – Options SD and HD address
requirement for custom signal analysis by enabling users to input
customized measurement locations for the Frequency Response,
Levels, and Noise measurement parameters. For frequency response
measurements, users can select either timing location input or frequency
input to make 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 video. This enables detailed analysis of roll-off, frequency distortion,
identification of spurs, and aliasing anywhere across the useful frequency
spectrum. Cursors for the Levels parameter enable flexible, automated
measurement of 3 channel levels for 1-8 individual pedestals on a line, such
as can be found with ARIB signals, MacBeth Charts, or other noncolor bar
signals. Noise special position cursors allow temporal windowing for noise
measurements, enabling noise measurements on signals such as color
bars, staircases, or camera test charts.
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