Atec Tektronix-VM5000 - Manual (Page 6)

Automated Video Measurement Set
VM5000
enable fully automated testing with a
single run command. The included meas-
urement interface unit provides connectivity,
signal termination, automated switching
and variable loads for sync voltage tests.
This approach eliminates the need for
expensive FET probes and delivers opti-
mized accuracy for both DC amplitude
and high-frequency timing measurements.
All the necessary elements for compliance
or QC testing are integrated into a cohesive
solution that delivers easily understood
pass or fail test results. Comprehensive
parametric signal analysis isolates product
performance deficiencies, enables design
optimization and ensures interoperability
of connected display devices. With
Option VGA, even unskilled operators
can make reliable and repeatable assess-
ments of VESA standards compliance.
Extensive video knowledge, oscilloscope
skills, complicated programming or system
integration skills are no longer required to
assess analog RGBHV signal integrity.
Companion Test Signal Packages
Each of options SD, HD and VGA includes
a specific companion test signal package
to speed and simplify testing of supported
signal formats. These packages have
been developed to enable comprehensive
parametric analysis of signal fidelity without
the inconvenience of switching test signals.
Test signal packages eliminate potential
video measurement set operability issues
and minimize uncertainties regarding the
quality of the input signal.
Because DTV has resulted in a proliferation
in video source content and signal formats,
test signals are provided in a variety of
pervasive formats to enable easy genera-
tion and extended format testing. Since
encoded test signals may contain artifacts
that detract from measuring the analog
signal fidelity, the matrix test signal is also
provided in MPEG-2 encoded elementary
and ATSC transport streams. To ensure
the encoded signal is accurate, Tektronix
has pre-qualified the matrix test signal for
each native video format.
HDTV Matrix Test Signal – A specific
matrix test signal has been created to
enable efficient and comprehensive test
of component analog video signal fidelity.
The matrix signal includes a range of test
signals on different lines to enable video
test without the inconvenience of switching
full field signals, and contents have been
customized to exercise the full bandwidth
capability of each format. One signal can
be flexibly utilized for both RGB and YPbPr
color spaces, thereby minimizing test
signal proliferation.
The HDTV matrix test signal is supplied
in a variety of file and signal formats to
enable convenient and comprehensive
test of set-top boxes and other consumer
video devices. High-quality encoded
ATSC transport stream and compressed
elementary stream files are supplied for
easy play-out on a Tektronix MPEG player
such as the MTX100A.
PC Graphics Matrix Test Signal
(Option VGA) – VESA compliance and
certification testing requires that several
different types of test signals be applied
to the device under test. Option VGA
includes test signal files for these patterns,
in both full field and matrix forms for the
full range of supported image resolutions.
Test signal files are provided in .bmp and
.png file formats.
VESA compliance and certification testing
requires that several different types of test
signals be applied to the device under
test. Option VGA includes test signal files
for these patterns, in both full field and
matrix forms for the full range of supported
image resolutions. Test signal files are
provided in .bmp and .png file formats.
The .png files are beneficial because they
enable HV timing measurement to be
made without the border artifacts potentially
introduced by bitmap files.
Video Measurement • www.tektronix.com/video 6
Test Signal Files: File and Signal Formats of Test Signal Packages
Test Signal HDTV HDTV PC Matrix & .bmp files .png files TG700 DNL ATSC Compressed DVD
Format Matrix 16x9 Matrix 4x3 Full Fields AVG7/ Transport MPEG
AWVG7 Stream Elementary
DVG7/ Stream
HDVG7
SD Formats X X X X *1, 2 X *3 X X
HD Formats X X X *1 X *3 X
VGA Formats X X X
*1 Requires TG700 and appropriate module (AVG7, AWVG7, DVG7
and/or HDVG7).
*2 SDI signal generation not supported for 576p format.
*3 ATSC transport stream not provided for 576i, 576p, 720p/50 and
1080i/50 formats.
HDTV Matrix Test Signal in 16x9
Aspect Ratio.
PC graphics Matrix Test Signal (Option VGA).