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Agilent E3830 Series Wide-bandwidth
Signal Analyzer Custom Systems
100 MHz Bandwidth Microwave Vector
Signal Analysis
2
The measurement challenge
Many advanced microwave
applications involve complex
wideband and time-varying signals such as:
• Satellite systems
• LMDS
• W-CDMA
• Microwave digital radio
• Radar/EW
• Surveillance
• Signal monitoring
Measurement challenges faced
by designers, manufacturers,
and end users in these wideband
application areas require transient analysis; analog and digital
demodulation; and precision
amplitude and phase measurements of frequency-translating
devices and systems. Complete
characterization of high data
rate signals requires instrumentation capable of high-speed
capture and analysis in both
frequency and time domains.
These wide-bandwidth measurement requirements are satisfied
by linking three of Agilent
Technologies’ most powerful
signal analysis tools: the
71910A/P wide-bandwidth
receiver, the 89410A vector
signal analyzer (VSA), and the
54845A Infiniium oscilloscope.
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The Agilent 71910A/P
Wide-bandwidth Receiver
The 71910A/P is part of the
Modular Measurement System
(MMS) family. This instrument
is a high performance microwave
spectrum analyzer with the additional feature of several widebandwidth IF outputs. The
71910A includes the 70004A
display mainframe, while the
71910P uses the 70207B PC
display.
High-performance
spectrum analysis
The 71910A/P features 100-MHz
to 26.5-GHz frequency coverage
and higher with external mixers.
Adding the 11970A or 11974A
mixer easily covers Ka-Band
applications found in satellite,
LMDS and microwave digital
radio. A wide dynamic range
helps ensure that signals of various amplitudes are accurately
measured.
The wide IF bandwidths, up to
100 MHz, are used to capture
wideband signals such as those
used in wireless communications and radar. A linear IF signal path provides good signal
fidelity.
The Agilent 71910A/P provides a
variety of outputs for baseband
signal analysis. It provides a
wideband 321.4-MHz IF output;
a linear video output; and
optional demodulated FM, analog I/Q, and 70-MHz/140-MHz IF
outputs.
The 70620B 26.5-GHz preamplifier and the 83050A 40-GHz
preamplifiers are also available
for measuring low-level signals
such as those common to LMDS
and W-CDMA.
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The receiver, oscilloscope, and VSA:
a very powerful combination
Precision AM, FM, and
PM demodulation
The Agilent E3830 series widebandwidth signal analyzer systems use the industry-standard
89410A vector signal analyzer as
the measurement engine for the
advanced analysis of complex signals. The 71910A/P wide-bandwidth receiver provides flexible
high-performance microwave
spectrum analysis on the RF and
microwave carrier. Functions
include out-of-band performance,
interference, and spurious signal
measurements. The receiver also
provides the wide-bandwidth IF
output to the 54845A Infiniium
oscilloscope and the 89410A VSA.
Adding the Agilent 54845A
Infiniium oscilloscope as a highspeed digitizer provides the
100-MHz wide-bandwidth signal
capture. The 100-MHz bandwidth signal is then ported as
digital data to the 89410A VSA
for complex signal analysis, providing true 100-MHz information
bandwidth. The state-of-the-art
DSP-based technology of the VSA
offers a comprehensive range of
signal analysis tools.
Digital modulation analysis
The VSA with optional vector
modulation analysis can test
systems and measure the quality
of digitally modulated signals.
Measurements are simplified
because no external filters,
coherent carriers, or symbol
timing signals are needed. A
selection of modulation formats,
variable number of symbols and
a variety of filter shapes are
available. A wide range of
display formats are provided,
including eye, constellation, and
vector diagrams, in addition to
numerous error and other signal
quality analysis results.
The 89410A VSA can characterize phase noise, oscillator frequency transitions, and the
amplitude or frequency behavior
of transmitters at turn-on.
Signals can be analyzed for
instantaneous amplitude,
frequency, or phase versus time,
and the time-domain results can
be translated into the frequency
domain for further analysis. Both
deliberate and unintentional (or
incidental) modulation can be
characterized completely.
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Time-selective spectrum
analysis
The entire time-domain signal
can be viewed and a specific
portion selected for frequencydomain analysis of burst or
time-varying signals. The selected data is identified with gate
markers, and all frequencydomain parameters—including
noise or signal-to-noise—can
then be measured. The signal
does not have to be repetitive.
The Agilent 54845A
Infiniium Oscilloscope
The 54845A Infiniium oscilloscope is a 1.5-GHz bandwidth,
8-Giga-sample per second highspeed digitizer. This highperformance capability provides
a very flat frequency response
over the 100-MHz bandwidth of
the signal analyzer system. The
captured 100-MHz bandwidth
signals are ported as digital data
to the 89410A VSA for complex
signal analysis. Using the 54845A
scope as a state-of-the-art highspeed digitizer provides the
high-performance measurement
capability of the wide-bandwidth
signal analyzer system.
The Agilent 71910A/P, 89410A
and 54845A each provide maximum flexibility and protect
your investment in measurement assets. The Infiniium
oscilloscope allows precision
time-domain measurements,
complementing the spectrum
and modulation measurements
of the wide-bandwidth receiver
and VSA.
Custom systems
The E3830 series wide-bandwidth
signal analyzer systems are available as custom systems, engineered to your specific measurement requirements.
System software is included
with a variety of computer
options and rack cabinet
mounting. Specifications are
provided for each custom application and individual instruments are programmable via
GPIB. Custom application
software is also available. To
optimize the system for your
needs, Agilent Technologies can
develop, procure, and integrate
specialized signal routing,
signal conditioning, and other
customized equipment.
Key literature
The following publications provide specifications,
option descriptions and application information for
the Agilent 71910A/P, 89410A, and 54845A:
Literature
Data sheet
number
71910A data sheet
5964-3895E
89410A data sheet
5965-5427E
54845A data sheet
5966-3542EUS
Modular Measurement System Catalog
5965-2818E
Product overviews
71000 P-series spectrum analyzers
54845A product overview
89410A product overview
5965-5791E
5967-5392EUS
5965-8554E
Product notes
“10 steps to a perfect digital demodulation
measurement,” product note 89400-14A
5966-0444E
“Noise power ratio (NPR) measurement,”
product note E2508-1
5965-8533E
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