Atec R9211 User Manual
Spectrum Analyzers
Choice of 4 Types To Fit the Application
R9211Series
■ 2-Channel, 16-Bit Resolution, Wide
Dynamic Range of 90 dB (Typical
Value)
■ Maximum Input Sensitivity of -140
dBV (2 kHz Range, Typical Value)
■ 10 mHz to 100 kHz Frequency Range
(1-2-5 Steps)
■ Domain Method (Measurement
Domain Mode) For Ease of Operation
■ Portable With Large 8 Inch CRT
Screen
■ Frequency Analysis Resolution of 25
to 3200 Lines
■ Built-In Power Supply For Measurement of Accelerometers
R9211A/9211B/9211C/9211E
FFT Analyzer Series
R9211 Series are portable high performance digital spectrum
analyzers which gather the essence of ADVANTEST’s accumulated technologies such as usage of dedicated LSI circuits and
high density mounting technology as well as development of
circuits with low power consumption.
The R9211 Series consists of 4 types so that the best choice can
be made to suit the application. These types are the economical
R9211E; the R9211A capable of running zoom; the R9211B ideal
for servo analysis; and the R9211C which can do servo analysis
as well as curve fitting and frequency response function synthesis.
All these types have the wide measurement frequency range of
10 mHz to 100 kHz, a high 16-bit resolution and a wide dynamic
range of 90 dB (typical value). The series also has high sensitivity
input of -140 dBV (typical value, 2 kHz range) and a function
which allows variation of the frequency resolution from 25 to
3200 lines. These features are effective in isolated measurement
of micro-level signals and adjacent spectrum. Of course, the
series offers more than just these excellent functions. By means
of ADVANTEST’s exclusive systematized domain method (measurement domain mode), measuring time has been shortened
over conventional FFT analyzers and operation simplified for a
wide range of user applications.
Other features include an increased memory capacity, built-in
floppy disk drive and 16-bit direct digital input analysis which
are available as standard (optional for some models). These
features meet a wide range of applications.
■ Wide Measuring Frequency Range of 10 mHz to 100 kHz
By using high precision analog and digital filters, aliasing
filters can be set in all frequency ranges from 10 mHz to 100
kHz. Frequency resolution can also be set from 25 to 3200 lines
in all frequency ranges according to the purpose of the analysis.
The scale function can be used to display the spectrum of only
the required frequency band on the CRT.
(Photo is R9211B)
■
16-Bit Resolution, 90 dB (Typical Value) Wide Dynamic Range
90 dB (typical value) wide dynamic range spectrum measurement has been made possible through ADVANTEST’s advanced
analog/digital signal processing technology. In order to take full
advantage of the functions of the built-in A/D converter, the input
sensitivity range can be varied in 1 dB steps. This is a powerful
feature for use in measurements of mechanical characteristics of
magnetic optical disks, distortion analysis or transient signal
analysis of audio signals and transfer function measurement
using an impulse hammer.
■
High Sensitivity Measurement of -140 dBV (Typical Value)
When used with a difference input, the R9211 Series attains highly
sensitive measurement of -140 dBV (at 0.1 µV, 2 kHz (typ.) range). This
is effective for analysis of noise in semiconductors or other devices.
■
‘I/O + Memory’ Function Allows Direct 16-Bit Digital Input
The ‘I/O + Memory’ function is effective in evaluating A/D
converters or DSPs used in digital audio equipment such as DAT
and CD players. Spectrum or distortion analysis can be done by
inputting a digital signal directly after the A/D converter of the
R9211 Series in ‘16-bit + EOC’ (twos complement) data format.
■
A Wide Variety of Marker Analysis and Display Functions
The R9211 Series has a wide variety of marker analysis functions
which are effective for analyzing or making evaluations and
allowing for a reduction in measurement time. These include
a peak marker, next peak marker, harmonics marker, band
marker, overall power, attenuation power, partial power, average
power, dispersion and X dB marker. The series has been made
easier to use, offering simultaneous display of 1 to 4 screens,
overlapping display in the same domain or same analysis range
and 3-D display of up to 50 lines. There is also a bar display
function where the state of one of overall power, partial power,
average power or power dispersion can be checked at a glance.
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Spectrum Analyzers
16-Bit Resolution, 100 kHz Portable Type
R9211Series
■ Measurement Domain Modes For Various Measurement Domains
Since digital spectrum analyzers have many measurement
applications, there is a tendency for them to have many analysis
functions and for their operations to become complicated. In
order to free the user from such complicated operations, the
R9211 Series has separate measurement domain modes
according to the measurement application. The user can select
the desired measurement mode without having to trouble with
unused analysis functions or setting conditions. The soughtafter results can be obtained easily by making only the software
key settings necessary for the measurement.
• Waveform Measurement Mode
By using this mode, time domain signal analysis can be done
more quickly than was possible previously. Further, an antialiasing filter can be turned on and off so that the series can be
used as a 16-bit/ 256 kHz sampling oscilloscope. This is ideal
for time domain transient phenomenon analysis of the sound
of acoustic instruments, starting characteristics tests of engines
or motors, waveform analysis of power on reset signals or
differential linearity tests of D/A converters.
• Time/Frequency Analysis Mode
In evaluation of musical instruments’ sound or hall reverberation
characteristics, time variation analysis can be done which
focuses on a specified spectrum. Further, analysis can be done
of the time characteristics of spectrum variations in the wow
and flutter component of VCRs or other equipment (frequency
monitor function). The time characteristics of phase variations
such as jitter can also be analyzed (phase monitor function).
• Spectrum Measurement Mode
Measurement is possible with a wide dynamic range of 90 dB
(typ.) and high sensitivity of -140 dBV (typ., at a 2 kHz range).
This is effective in harmonic distortion analysis and microlevel noise analysis.
• Frequency Response Function Measurement Mode
In this mode, frequency resolution can be varied from 25 to 800
lines. Also, since 2 power supply channels for acceleration
sensors are built-in, direct measurements of transfer functions
of structural components are possible by connection of a sensor
with a built-in amp or an impulse hammer.
• Servo Analysis Mode (R9211B, R9211C)
The R9211 Series features a built-in summation amplifier for
open loop characteristics evaluation, servo measurement with
up to a 5 decade log sweep and a point servo measurement
function with a frequency table of only specified frequencies.
■ Features of each type
• 16 Bit Resolution, 90 dB (Typ.) Wide Dynamic Range
• 10 mHz to 100 kHz Frequency Range
• Maximum Input Sensitivity: -140 dBV (2 kHz Range, Typ.)
R9211E
• 12 kg Portable Type, 8 Inch CRT
• Easy-to-Use Separate Measurement Domain Modes
• Running Zoom Function With Minimum Span of 10 mHz
• 15 Bit Resolution, 90 dB (Typ.) Wide Dynamic Range
• 10 mHz to 100 kHz Frequency Range
R9211A
• Easy-to-Use Separate Measurement Domain Modes
• 3.5 Inch Floppy Disk Drive Provided Standard
• 130 dB Minimum Wide Dynamic Servo Analysis
• 10 mHz to 100 kHz Frequency Range
• High Speed Auto-Range Function, Frequency Resolution Variation
R9211B
Function (25 to 800 Lines), SSS Format High Speed Measurement
• Built-in Addition Amplifier Ideal For Servo Analysis
• Curve Fit Function, Frequency Response Function Synthesis Function
• 130 dB Minimum Wide Dynamic Servo Analysis
• High Speed Auto Range Function, Frequency Resolution Variation
R9211C
Function (25 to 800 Lines), SSS High Speed Measurement
Functions and Options Applications
SG with output up to ±15 V
SG with digital signal generation
Curve fitting and synthesizer function
R9211B
R9211C
R9211E
R9211A
Note: Selection of only one possible of the items marked with ▲.
●●●
Running zoom with 10 mHz resolution
GO-NO GO decisions by comparator function
SG with built-in summation amplifier
Power supply for acceleration sensor with built-in amp
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Sign, multi-sign, swept sign, impulse, random or
Difference input
Floppy disk drive
arbitrary waveform output
●
High speed thermal printer
Opt. Opt. Opt.
Opt. Opt.
Opt.
Opt. Opt. Opt. Opt.
‘I/O + memory’ card
CMOS memory (1 M words)
High speed calculation processor
Oscillation/structural components analysis
●●
▲▲▲
Device noise evaluations
Acoustics/noise/sound analysis
Digital audio sound output evaluations
Telephone line terminal equipment evaluations
Optical disk mechanical characteristics evaluations
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●●●●●●●●●● ● ●●●●●
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Digital servo evaluations
A/D, D/A converter evaluations
Evaluations of servos in CD/DAT/video disk players
High speed octave analysis
1/1 and 1/3 octave analysis
Digital amp/digital filter evaluations
Opt.
Analog servo evaluations
130 dB wide dynamic range servo analysis
Analysis by frequency response function synthesis
Transient signal characteristics (indoor, in-car acoustic analysis)
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