ADVANTEST R3131A SPECTRUM ANALYZER频谱仪使用说明


    R3131A
    R3131A
    Spectrum Analyzer
    A personal spectrum analyzer for use
    in diverse applicationsThe R3131A is an easytouse
    personal spectrum analyzer which
    combines high accuracy
    necessary for digital radio
    measurement with
    excellent operability
    and usability
    The R3131A can be used
    in diverse fields
    for a multitude of
    applications
    2 R3131A4E Jan ´02
    Common Keys
    Auto Tune counter and power
    measurements made simple by
    these keys
    Front Panel Layout Data Entry Keys
    The data entry keys arranged together
    with the FREQ SPAN and LEVEL basic
    functions improves operability
    Marker Keys
    Various marker functions like delta
    marker and peak search function are
    available
    Control Keys
    For setting bandwidth sweep and
    various parameters R3131A meets
    to all the measurements
    Floppy Disk Drive
    Measurement parameters and results can be
    recorded on a 35inch floppy diskBecause the bit
    map and text formats are compatiblethe recorded
    data can easily be transferred to a PC
    57inch
    BW STN Display3R3131A4E Jan ´02
    Features
    ■ Builtin high accuracy OBW ACP and Power measurement functions
    which can be applied to digital radio measurement
    ●Frequency stabilization
    ●Improved SPAN accuracy
    ●Improved level accuracy
    ■ Improved ease of use through Auto TUNE function
    ■ Total level accuracy guaranteed by Auto CAL function
    ■ Standard interfaces GPIB RS232C Centronics and FD drive
    ■ Large character display allows results to be seen
    ■ Substantial EMC measurement function
    ■ Improved system operation speed
    ■ Operation key arrangement for ease of use
    ■ Compact and light weight (12kg) with a spacesaving design
    ■ High performance realized within an economical platform
    ■ Tracking generator option (OPT74)
    R3131A
    Mobile
    Communications
    accommodating diverse
    applications
    R3131A
    EMCParts
    Installation
    Maintenance
    Development
    Production lines
    CATV
    PERSONAL SPECTRUM ANALYZERIndependent operation keys improve operability
    AUTO TUNE
    Searches for the signal with the maximum
    level within the 3 GHz band and sets the
    center frequency automatically Then
    reproduces the setting which existed
    immediately before execution of AUTO
    TUNE allowing observation under the same
    measurement conditions
    COUNTER
    Performs frequency measurement with the
    builtin frequency counter simply by moving
    the marker to the signal You can select a
    measurement resolution from 1Hz up to
    1kHz The measurement results are displayed
    with enlarged characters for easy viewing
    4 R3131A4E Jan ´02
    AUTO
    TUNE
    COUNTER5R3131A4E Jan ´02
    PERSONAL SPECTRUM ANALYZER
    POWER MEASURE
    The R3131A can measure the power within
    the specified band of frequency diffuse signals
    and the total power of multicarrier signals It
    can also be used to measure the occupied
    frequency bandwidth (OBW) and adjacent
    channel leakage power (ACP) which are
    essential to transmission characteristics testing
    for radio equipment
    Channel Power
    The R3131A allows you to measure the total power within the
    window and display it as the channel power simply by setting
    the measurement window to the specified occupied bandwidth
    Total Power
    Obtains the total power from the spectrum displayed on the
    screen This function is useful for total power measurement of
    multicarrier signals
    OBW
    Measures the frequency band which contains 99 of the total
    power of the spectrum displayed on the screen In addition
    the value of OBW can be set to any desired value
    ACP
    The measurement results can be displayed in graphical form
    including upper and lower point data up to the 2nd ACP
    respectively offset from the carrier and leakage power value at
    all the displayed frequency points
    POWER
    MEASURESAVERECALL
    The R3131A allows you to store and recall measured waveform
    data and measurement conditions The R3131A unit offers up
    to 10 dedicated files for storage In addition the builtin
    standard floppy disk drive allows you to store them on MS
    DOS formatted floppy disks
    MULTIPLE MARKERS
    Up to 10 markers can be set Therefore this feature is useful
    for applications that require the measurement of each level of
    multiple carrier signals filter cutoff characteristics etc at
    multiple marked points
    PASSFAIL
    There is a choice of two types of limit tests for waves to be
    measured One is a simple method in which either a signal
    level or frequency is evaluated for wave shape in accordance
    with a given window range The other is a limit line method
    in which electromagnetic compatibility (EMC) and filter char
    acteristics are evaluated in accordance with the limit lines
    GATED SWEEP
    Bursted signals could not directly be observed with former
    spectrum analyzers The R3131A allows spectrum analysis of
    the burst signal by supplying a trigger signal synchronizing
    with the burst transmission
    6 R3131A4E Jan ´02
    GATED SWEEP OFF
    GATED SWEEP ON
    The window range set along the X and Y axes is the PASS area The
    signal level or frequency at a marked point is evaluated in accordance
    with the range
    Any UPPER and LOWER limit lines can be set Pass or Fail judge
    ment can be made in accordance with the limit linesEMC
    This function measures electromagnetic interference generated
    by various electronic equipment This function incorporates
    the 9 kHz and 120 kHz RBW and QP detector conforming to
    the CISPR Pub161 standard In addition using the AMFM
    demodulation signal fed from the PHONE jack on the rear
    panel you can identify broadcasting radio waves which act as
    external noise Prior to measurement of noise emission on the
    approved site this function is very useful for preparatory
    evaluation and solution
    Various antenna correction factors provided by Advantest are
    builtin the R3131A Simply by selecting the Model name of
    the antenna the level indication of the R3131A is calibrated to
    an absolute value allowing you to read the value directly in
    unit of dBµm When you use an antenna from other
    manufacturers you can reflect its antenna correction factor in
    the level indication of the R3131A by performing steps and
    below
    Diverse measurement functions
    The MEAS key incorporates the XdB Down measurement
    function which is useful for noise measurement AM
    modulation measurement 2signal 3rdorder distortion
    measurement and filter cutoff frequency measurement In
    noise measurement bandwidth conversion can easily be made
    and the PBW calibration function for improvement of
    measurement accuracy is effective The PBW calibration
    function is a new calibration function which performs
    correction in power measurement based on conversion of the
    R3131A resolution bandwidth filter to an ideal filter thereby
    allowing measurement with higher accuracy
    7R3131A4E Jan ´02
    Antenna and Level Correction Functions (EDIT of Corrtable is not performed by the R3131A unit)
    SHIFT
    RECALL
    SAVE
    Save
    Save Item
    Protect
    Delete
    1 Set Antenna Correction to ON and SAVE the file
    2 OPEN the file from the floppy disk using Excel
    on the PC
    3 Enter the frequency and correction level in
    the 〈ANT CORR〉 area and then overwrite it
    on the floppy disk
    4 Load the floppy disk in the R3131A and then
    RECALL the file The Correction table is created
    Setup ONOFF
    Trace ONOFF
    Antenna
    Correction ONOFF
    MAX 50 Points
    1
    2
    Set Correction to ON The corrected data is reflected
    on the screen data
    SHIFT
    1
    EMC
    Field Correction ONOFF
    PERSONAL SPECTRUM ANALYZERImproved system throughput
    The throughput of production and adjustment lines is largely
    affected by the measurement time of measuring instruments
    and data transmission time With newly developed internal
    processing technology the R3131A has shortened the time
    necessary for GPIB control and data transmission by half or
    more in comparison with former products In addition by
    reducing the settling time of the local oscillator the waveform
    update rate in unit time has been doubled
    (In either case comparison is made under the same conditions)
    Use of Data SaveRecall of the R3131A
    8 R3131A4E Jan ´02
    Series of center frequency sweep
    marker and data load operations
    Former products
    from Advantest
    Former products
    from Advantest
    Former products
    from Advantest
    Former products
    from AdvantestR3131A
    About
    22 seconds
    About
    12 seconds
    About
    16 seconds
    About
    07 seconds
    About
    07 seconds
    About
    03 seconds
    About
    5 times
    second
    About
    10 timessecond
    R3131A R3131A R3131A
    Trace data output Actual measurement Trace data update
    ASCII MODE BIN MODE
    (with a sweep time of 50ms)( )
    Printer
    R3131A
    Floppy
    PC
    Easy data management
    on the PC
    (txt bmp)
    PERSONAL SPECTRUM ANALYZER
    5 PrintOut
    2 Open in Excel
    format
    3 Data editing
    1 Save in txt
    format
    4 Data Recall
    5 PrintOutShort cable
    Object cable
    9R3131A4E Jan ´02
    OPTION
    The tracking generator (OPT74) is a monoblock option
    which is integrated in R3131A It can generate constant level
    signal synchronized with sweep frequency in the frequency
    range up to 3 GHz and therefore can easily measure the
    frequency characteristic of object device Besides with the
    normalize function which cancels the frequency characteristic
    of measuring system highly accurate measurement is possible
    Because the output level can be set in a wide range (from 0 to
    599 dBm in 01 dB steps) it can be used to measure filter
    pass characteristic cable loss amplifier gain etc
    For the measurement of reflection characteristic
    With the SWR bridge the reflection characteristic of antennas
    and filters can be measured
    For the measurement of cable loss
    With the short cable the highfrequency loss characteristic of
    cable can be measured from the differential when the object
    cable is connected
    SWR
    bridge
    ZRB2
    DUT
    Open or
    short terminator
    Tracking generator option (OPT74)10 R3131A4E Jan ´02
    Specifications
    Frequency
    Range 9 kHz to 3 GHz
    Frequency reading accuracy ± (Frequency reading x Frequency
    reference accuracy+ Span x Span accuracy
    + 015 x Resolution bandwidth + 1 kHz)
    Marker counter accuracy ± (Marker frequency x Frequency
    reference accuracy + 1 LSD)
    (SN ≥ 25 dB SPAN ≤ 200 MHz)
    Marker counter resolution 1 Hz to 1 kHz
    Frequency reference
    source accuracy ±2 ppmyear
    ±5 ppm at operating temperature range
    Frequency span zero 10 kHz to 3 GHz
    Frequency span accuracy ≤ ±3 (50 kHz ≤ span ≤ 3 GHz)
    ≤ ±10 (10 kHz ≤ span < 50 kHz typ ±3)
    Frequency stability
    Residual FM ≤ 100 Hzpp100 ms (zero span)
    Sideband noise ≤ 100 dBcHz (20 kHz offset)
    Resolution 3 dB bandwidth 300 Hz to 1 MHz 13 step
    Bandwidth accuracy ≤ ±20 (RBW 1 kHz to 1 MHz)
    ≤ ±50 (RBW 300 Hz typ ±20)
    Selectivity (60 dB3 dB) ≤ 151 (RBW 1 kHz to 1 MHz)
    ≤ 201 (RBW 300 Hz 50 dB3 dB)
    6 dB bandwidth 9 kHz 120 kHz
    Video bandwidth 10 Hz to 1MHz 110 step
    Amplitude
    Amplitude measurement range +30 dBm to Average noise level
    Maximum input level +30 dBm 50 VDC
    Display range
    LOG 10 dBdiv 8 div 125 dBdiv 10 div
    LIN 10div of reference level
    Reference level range
    LOG 64 dBm to + 40 dBm
    LIN +1411 µV to + 2236 V
    Input attenuator range 0 to 50 dB 10 dB step
    Sweep
    Sweep time 50 ms to 500 s
    Sweep time accuracy ≤ ±3
    Trigger mode FREE RUN VIDEO EXT LINE
    Sweep mode REPEAT SINGLE
    Dynamic range
    Average noise level 113 dBm +2 f (GHz) dB
    (at RBW 1 kHz VBW 10 Hz
    INPUT ATT 0 dB frequency ≥ 1 MHz)
    1 dB gain compression > 5 dBm (mixer input level f ≥ 20 MHz)
    Secondary harmonic distortion ≤ 70 dB (input frequency ≥ 10 MHz
    mixer input level 30 dBm)
    3rd Order Intermodualation ≤ 70 dB (input frequency ≥ 10 MHz
    mixer input level 30 dBm ∆f > 50 kHz)
    Other input spurious ≤ 60 dB (offset ≥ 20 MHz
    mixer input level 30 dBm)
    Residual response ≤ 100 dBm
    (Frequency ≥ 1 MHz INPUT ATT 0 dB
    input 50 Ω terminated)
    Amplitude accuracy
    Calibration signal 30 MHz 20 dBm ±03 dB
    Frequency response ≤ ±05 dB (100 kHz to 3 GHz ATT 10 dB)
    ≤ ±1 dB (100 kHz to 2 GHz)
    ≤ ±2 dB (9 kHz to 3 GHz)
    (after calibration at 30 MHz reference)
    Scale display accuracy
    LOG ≤ ±05 dB (0 to 20 dB) (after auto calibration)
    ≤ ±15 dB70 dB (after auto calibration)
    ≤ ±10 dB10 dB (after auto calibration)
    ≤ ±02 dB1 dB (after auto calibration)
    LIN ±5 of reference level
    Input attenuator
    switching accuracy ≤ ±03 dB (10 dB reference 30 MHz)
    Resolution bandwidth
    switching accuracy ≤ ±05 dB (after auto calibration)
    IF gain error ≤ ±05 dB (after auto calibration)
    Total level accuracy ±15 dB (after auto calibration
    REF 50 to 0 dBm ATT 10 dB 2 dBdiv
    RBW 300 kHz f > 100 kHz)
    Inputoutput
    RF input
    connectorimpedance N type jack50 Ω (nominal)
    VSWR ≤ 15 (100 kHz to 2 GHz INPUT ATT ≥ 10 dB)
    ≤ 20 (9 kHz to 3 GHz INPUT ATT ≥ 10 dB)
    10 MHz REF
    input BNC jack 50 Ω
    Input range 10 dBm to +10 dBm
    Ext trigger input BNC jack 10 kΩ (nominal) DC coupling
    Phone output Mini monophonic jack 8 Ω
    GPIB interface IEEE488 bus connector
    Serial interface DSUB 9pin
    Printer interface DSUB 25pin ESCP PCL
    Floppy disk drive 35inch 14 Mbyte MSDOS format
    General specifications
    Operating conditions 0°C to +50°C 85RH max
    (without condensation)
    Storage conditions 20°C to + 60°C
    Power supply 100200 VAC auto switching
    100 VAC 100 V to 120 V 50 Hz60 Hz
    220 VAC 220 V to 240 V 50 Hz60 Hz
    Power consumption 200 VA max (100 VAC)
    Weight 12 kg or less
    Dimensions Approx 424 mm (W) x 177 mm (H)
    x 300 mm (D)
    OPT74 Tracking Generator
    Frequency range 100 kHz to 30 GHz
    Output level range 0 dBm to 599 dBm (01 dB step)
    Output level accuracy ≤ ±05 dB (30 MHz 10 dBm 20°C to 30°C)
    Output level flatness at 10 dBmreferenced to 30 MHz
    ≤ ±10 dB (100 kHz to 10 GHz)
    ≤ ±15 dB (100 kHz to 30 GHz)
    Output level switching
    error at referenced to 10 dBm
    ≤ ±10 dB (100 kHz to10 GHz output level ≥ 30 dBm)
    ≤ ±20 dB (100 kHz to 26 GHz)
    ≤ ±30 dB (100 kHz to 30 GHz)
    Output spurious
    Harmonic ≤ 20 dBc (output level 10 dBm)
    Nonharmonic ≤ 30 dBc (output level 10 dBm)
    Specifications may change without notification Windows is a trademark of Microsoft Corporation11R3131A4E Jan ´02
    Rear panel
    RS232
    ●Remote ●Data Out
    EXTERNAL TRIGGER
    ●External trigger ●Gated Sweep
    R3131A Spectrum Analyzer
    (OPT74 Tracking generator option)
    10MHz
    REFERENCE
    INPUT
    PRINTER
    ●PCL ●ESCbased
    PHONE PROBE POWER
    GPIB
    ●Remote ●Data Out
    Applicable printer
    control code
    ●ESCP
    ●ESCP Raster
    ●HP PCL
    Printers with the Centronics interface using
    the above commands as control codes can be usedADVANTEST CORPORATION
    ShinjukuNS building 41
    NishiShinjuku 2chome
    Shinjukuku Tokyo 1630880
    Japan
    Tel +81333427500
    Fax+81353227270
    httpwwwadvantestcojp
    Advantest (Singapore) Pte Ltd
    438A Alexandra Road
    #80306 Alexandra Technopark
    Singapore 119967
    Tel +652743100
    Fax+652744055
    Tektronix Inc (North America)
    P O Box 500 Howard Vollum
    Industrial Park Beaverton
    Oregon 970770001 U S A
    Tel +18004262200
    Fax+15036274090
    Rohde & Schwarz
    Engineering and Sales GmbH
    (Europe)
    Mühldorfstraße 15
    D81671 München Germany
    POB 80 14 29
    D81614 München Germany
    Tel +4989412913711
    Fax+4989412913723
    Bulletin NoR3131A534E Jan ´02 I
    © 2002 ADVANTEST CORPORATION
    Printed in Japan

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