Prüfung von Consumer-HF - beam - Elektronik & Verlag

Test & Measurement
Wireless Telecom Group introduces new Amplifier Test Software
Boonton, a Wireless Telecom
Group (NYSE: WTT) company,
has launched „Amplifier Test
Bench“, a new software package
that simplifies test and certification
of RF Amplifiers. Amplifier
National Instruments introduced
the new NI Digital Video
Analyzer, which automates
a wide range of tests for the
latest HDMI sources such as
set-top boxes, Blu-ray Disc
players and DVD players.
The analyzer features configuration-based
test steps that
automate measurements of
HDMI features including 3-D
video, HDMI 1.4 protocol and
picture quality analysis. With
hardware based on the NI PXI
Express platform and software
designed for multicore computing,
engineers can use the
NI Digital Video Analyzer to
achieve high-performance,
high-precision measurements
of HDMI content in a fraction
of the time required by traditional
video test solutions.
Test Bench supports analysis of
pulsed and linear amplifiers; furthermore
it measures gain over
frequency and gain over input
power. The software supports
both fast Boonton peak power
The NI Digital Video Analyzer
combines with NI Picture Quality
Analysis software to precisely
measure streaming audio
and video quality and eliminate
challenges inherent with
subjective operator inspection.
meters 4540 and 4500B and a
variety of standard generators.
No programming knowledge
is required.
Wolfgang Damm, Product Marketing
Director of WTG says:
„Amplifier Test Bench provides
not only a convenient automated
test setup for different
types of amplifiers, but together
with our peak power meters it
is significantly more accurate
than conventional average test
methods. Amplifier Test Bench
performs actual pulse power
measurements that guarantee
detailed and most accurate
amplifier analysis. „Amplifier
Test Bench also has the capability
to measure VSWR and
return loss over time. With this
feature it is a powerful tool for
Using the system‘s variety
of measurements, engineers
can analyze streaming video
for defects such as macroblocking,
stuck frames and audio
drops, which single-frame
static image analysis cannot
measuring long term stability of
RF systems. Analyzing the quality
and wear of rotating radar
joints is just one example. For
this application, the shaft position
pulse provides the 0 degree
starting point which triggers
repeating measurement cycles
of Amplifier Test Bench. Time
is correlated to angle and based
on that, the software plots return
loss over angle. Possible problems
that are related to the position
angle of the radar system
can now be pinpointed easily.
Amplifier Test Bench is offered
as single user package, with
the option of obtaining multi
user licenses. It is available for
immediate delivery.
■ Wireless Telecom Group Inc.
www.wtcom.com
National Instruments Digital Video Analyzer automates Wide Range of HDMI Tests
detect. Engineers also can use
the system to conduct higher
performance measurements of
total picture quality with pixelto-pixel
reference tests such as
peak signal-to-noise ratio and
structural similarity.
The NI Digital Video Analyzer
also supports HDMI protocol
tests including InfoFrames,
consumer electronics control
(CEC) messaging, extended
display identification data
(EDID) emulation and hot
plug detect (HPD) events. Such
capability makes it possible for
the NI Digital Video Analyzer
to simulate an LCD or HDTV
and better guarantee interoperability
with other HDMIenabled
devices.
■ National Instruments
www.ni.com/vms
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