WiMAX (802.16e) Measurement User Manual

WiMAX (802.16e) Measurement User Manual
Contents
SPECTRUM ANALYZERS
3250 Series
WiMAX (802.16e) Measurement
User Manual
Document part no. 47090/004
SPECTRUM ANALYZERS
3250 SERIES
WiMAX (802.16e) Measurement
User Manual
© Aeroflex International Ltd. 2009
No part of this document may be reproduced or transmitted in any form
or by any means, electronic or mechanical, including photocopying,
or recorded by any information storage or retrieval system,
without permission in writing by Aeroflex International Ltd.
(hereafter referred to throughout the document as ‘Aeroflex’).
Manual part no. 47090/004 (PDF version)
Based on Issue 1 of the printed manual
29 July 2009
PREFACE
About this manual
This manual explains how to use the WiMAX measurement option for the 3250 Series
Spectrum Analyzers.
Intended audience
People carrying out work relating to the design and manufacture of RF and microwave
sub-systems and modules, or the installation and maintenance of those systems.
Familiarity with the terms used in RF and microwave measurements is assumed.
Document conventions
The following conventions apply throughout this manual:
CAPS Capitals are used to identify names of controls and panel markings.
[CAPS] Capitals in square brackets indicate hard key titles.
[Italics] Italics in square brackets indicate soft key titles.
Associated publications
•
3250 Series Operating Manual
(PDF version 46892/974, printed version 46882/974)
2
Contents
General........................................................................................................................................ 6
Specifications .......................................................................................................................................................7
Frequency ......................................................................................................................................................7
Dynamic range and accuracy .........................................................................................................................7
A/D converter ................................................................................................................................................7
Storage ...........................................................................................................................................................7
Installing the WiMAX measurement option ........................................................................................................8
Measurement guide..................................................................................................................... 9
Preparation for measurement ...............................................................................................................................9
General steps in making a measurement ..............................................................................................................9
802.16e signal measurement guide........................................................................................... 13
OFDMA basic theory.........................................................................................................................................13
WiMAX and 802.16e standard ..........................................................................................................................14
Definition of mobile WiMAX basic parameters..........................................................................................15
Mobile WiMAX (802.16e) physical parameters..........................................................................................16
Mobile WiMAX (802.16e) frame structure (in TDD operation mode) .......................................................16
WiMAX transmitter test (spectrum & power) ...................................................................................................18
Spectrum measurement................................................................................................................................18
Power vs time...............................................................................................................................................18
CCDF...........................................................................................................................................................19
Power vs time with crest factor....................................................................................................................20
Spectral flatness ...........................................................................................................................................22
WiMAX transmitter test (modulation quality) ...................................................................................................23
Configuration for modulation quality measurement ....................................................................................23
EVM measurement ......................................................................................................................................25
Constellation measurement ..........................................................................................................................26
Frequency error measurement......................................................................................................................26
Menu descriptions .................................................................................................................... 28
WiMAX measurement mode .............................................................................................................................28
Mode setup.........................................................................................................................................................28
Frequency menu...........................................................................................................................................29
Span menu (FFT analysis only) ...................................................................................................................29
Amplitude menu ..........................................................................................................................................29
Measure menu..............................................................................................................................................30
Measure control menu (except FFT analysis)..............................................................................................30
Marker menu (FFT analysis only) ...............................................................................................................31
Peak menu (FFT analysis only) ...................................................................................................................31
Display menu ...............................................................................................................................................31
Sweep menu.................................................................................................................................................32
BW menu .....................................................................................................................................................32
Trace menu (FFT analysis only) ..................................................................................................................32
Preset menu..................................................................................................................................................32
Detailed description of commands ........................................................................................... 33
General ...............................................................................................................................................................33
SA command................................................................................................................................................33
Amplitude...........................................................................................................................................................34
RL ................................................................................................................................................................34
AT ................................................................................................................................................................35
SD ................................................................................................................................................................36
Average (FFT Analysis Only)............................................................................................................................37
AVG.............................................................................................................................................................37
AVGC ..........................................................................................................................................................38
Bandwidth (FFT analysis only)..........................................................................................................................39
RB ................................................................................................................................................................39
3
RBA .............................................................................................................................................................40
Display ...............................................................................................................................................................41
GRAT ..........................................................................................................................................................41
WH...............................................................................................................................................................42
File .....................................................................................................................................................................43
FREAD ........................................................................................................................................................43
FSAVE.........................................................................................................................................................44
FLOAD ..............................................................................................................................................................45
FDEL ...........................................................................................................................................................46
FCOPY ........................................................................................................................................................47
FRENAME ..................................................................................................................................................48
FMOVE .......................................................................................................................................................49
Frequency...........................................................................................................................................................50
CF ................................................................................................................................................................50
SR ................................................................................................................................................................51
REF ..............................................................................................................................................................51
Marker (FFT analysis only) ...............................................................................................................................52
MS[1~9].......................................................................................................................................................52
MM[1~9] .....................................................................................................................................................53
MF[1~9].......................................................................................................................................................54
MA[1~9] ......................................................................................................................................................55
MAO ............................................................................................................................................................56
Measurement ......................................................................................................................................................57
MEA ............................................................................................................................................................57
PVTOUT......................................................................................................................................................58
PVTCOUT...................................................................................................................................................59
CCDFOUT...................................................................................................................................................60
FLATOUT ...................................................................................................................................................61
EVMCOUT..................................................................................................................................................62
EVMWOUT ................................................................................................................................................63
EVMOUT ....................................................................................................................................................64
Measurement control..........................................................................................................................................65
MEAT ..........................................................................................................................................................65
Mode ..................................................................................................................................................................66
MODE..........................................................................................................................................................66
WIMAXSTD ...............................................................................................................................................67
Peak search (FFT analysis only) ........................................................................................................................68
MPK[1~9]....................................................................................................................................................68
MPKN[1~9] .................................................................................................................................................68
Preset..................................................................................................................................................................69
PRST............................................................................................................................................................69
Printer.................................................................................................................................................................70
HCOPY........................................................................................................................................................70
Span (FFT analysis only) ...................................................................................................................................71
SP.................................................................................................................................................................71
Sweep .................................................................................................................................................................72
CO................................................................................................................................................................72
SI..................................................................................................................................................................73
System................................................................................................................................................................74
BEEP............................................................................................................................................................74
ECHO ..........................................................................................................................................................74
Trace (FFT analysis only) ..................................................................................................................................75
TRF ..............................................................................................................................................................75
GPIB common commands .................................................................................................................................76
*CLS ............................................................................................................................................................76
*ESE ............................................................................................................................................................77
*ESR? ..........................................................................................................................................................78
*IDN? ..........................................................................................................................................................79
*OPC............................................................................................................................................................80
4
*OPC?..........................................................................................................................................................81
*RST ............................................................................................................................................................82
*SRE ............................................................................................................................................................83
*STB? ..........................................................................................................................................................84
GPIB common commands — others..................................................................................................................85
ESE2 ............................................................................................................................................................85
ESR2? ..........................................................................................................................................................86
ERR..............................................................................................................................................................87
Remote commands ................................................................................................................... 88
< Catalog order > ...............................................................................................................................................88
< SA command order > ......................................................................................................................................90
< SCPI command order >...................................................................................................................................92
Error codes................................................................................................................................ 94
5
General
This option provides a total solution to testing WiMAX equipment (mobile or subscriber station).
It performs power, spectrum and modulation quality measurements in accordance with IEEE
802.16e-2005 standards.
You can make the following measurements:
•
FFT Analysis
•
Spectrum with FFT
•
Power versus Time
•
Spectral Flatness
•
Modulation Quality (Constellation, EVM vs Symbol, EVM vs Subcarriers)
•
Modulation quality-related numerical results
EVM RMS, Peak in % and dB scale
EVM for pilot % and dB scale
EVM for Unmodulated Carrier % and dB scale
Frequency Error in Hz
•
Power Statistics CCDF
6
Specifications
The instrument includes a wide-band RF digitizer, which is optimized for complex signal analysis
applications in communications system test.
Frequency
3 Hz to 3 GHz / 8 GHz / 13.2 GHz / 26.5 GHz
Frequency range
Bandwidth
30 MHz
Resolution
1 Hz
Dynamic range and accuracy
Intermodulation free dynamic range Adjacent Channel
Leakage Ratio (ACLR)
Typically 80 dB
Residual EVM
<1% (nominal)
A/D converter
Resolution
14 bits
ADC clock
Fixed 85.6 MHz
Sample rate control
IF: 21.4 MHz; IQ: variable 541.666ks/s to 42.8 Ms/s
Amplitude flatness
Typically 0.5 dB to 30 MHz
Phase flatness
0.05 radians pk-pk to 30 MHz
Storage
Data output
Sampled digital I/Q data is stored in the digitizer’s internal
memory. Its resolution is 32 bits. It is transferred to the
CPU over the PCI bus.
Sample memory
128 Mb (32 Msample)
7
Installing the WiMAX measurement option
To license your WiMAX measurement option, use the following procedure.
Note: when you add a new option, or update an existing option, you receive the updated version of
all your current options because they are reloaded simultaneously. This process may also require
you to update the signal analyzer program so that it is compatible with the new option.
If your analyzer came with the WiMAX measurement licensed, you can skip the licensing.
Keep a copy of your license key number in a secure location. If you lose your license key number,
call your nearest service or sales office for assistance.
If you bought the digitizer with this option, it must be sent to manufacturer. All hardware and
software installations will be completed by manufacturer and the instrument returned to you.
1
Connect keyboard and mouse to the PS2 ports or the USB ports.
2
Turn on the instrument. Wait until the instrument completes its power-up sequence.
3
Press [System], [Option Info.], [Option Activate].
4
Select the WiMAX field in the license active dialog window.
Note: all purchased options must be selected.
5
Enter the letters/digits of your 32-character license code using the mouse or the keyboard.
The license key number is a hexadecimal number.
6
Press [Activate].
7
If licensing completes successfully then the Activation Success dialog window displays. If
Invalid License! is displayed, enter the correct license code again.
8
Press OK or press any keypad, then exit from the license menu.
8
Measurement guide
This section provides a guide to making measurements of mobile WiMAX (802.16e) signals.
Using the procedures specified in this section, you can get WiMAX signal analysis results.
Preparation for measurement
Before connecting a signal to the instrument, make sure the instrument can safely accept the signal
level provided. The maximum RF input level is +30 dBm. If the RF input attenuator level is set to
10 dB, the input level can be increased to +40 dBm. Connect a 10 MHz reference input to
synchronize the analyzer with a signal source. Fig. 1 shows the instrument set up for testing a
device.
10 MHz reference
RF Input
RF Attenuator
DUT
(SS or MS station)
Fig. 1 WiMAX measurement setup
General steps in making a measurement
All measurements performed in ‘WiMAX options’ can be performed with the following steps.
1 Select the WiMAX measurement option
Press [MODE]. All of the installed and licensed options (Phase Noise, EMI Receiver, WiMAX
etc.) become available and are shown.
Press [NEXT] until the WiMAX option is visible
Press [802.16 OFDMA] to go to the WiMAX measurement menu.
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MEASUREMENT GUIDE
Fig. 2 Select WiMAX measurement option
2 Select the measurement to be performed
The WiMAX option provides various measurements for analyzing the WiMAX signal’s physical
layer. Select the measurement from the following menu:
FFT Analysis
Power vs Time
Spectral Flatness
Constellation
EVM
CCDF
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Fig. 3 Select WiMAX Specific Measurement
3 Configure OFDMA parameters
This configuration is important for evaluating modulation quality measurements exactly.
Configure WiMAX frequency and timing parameters by pressing [Setup]. Configure the link
direction (Downlink or Uplink) by pressing the [F1] key. Configure zone and burst parameters by
pressing [NEXT] and selecting [Edit Zone Info…]. After finishing configuration, return to the
measurement menu by pressing [MEASURE].
Fig. 4 Set up WiMAX frequency & timing parameters
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Fig. 5 Set up WiMAX Zone and Burst parameters
12
802.16e signal measurement guide
This chapter gives guidance for measuring the physical layer performance of a WiMAX (802.16e)
signal. It describes a typical procedure for each measurement of a WiMAX signal. The target
system (BS or MS) of this measurement option must follow the IEEE 802.16e OFDMA standard,
released in 2005.
OFDMA basic theory
Orthogonal Frequency Division Multiplexing Access (OFDMA) is an access technique that subdivides the bandwidth into multiple frequency subcarriers. Fig. 6 gives a simple description for
the multi-carrier modulation method of an OFDMA system. In an OFDMA system, the input data
stream is divided into several parallel sub-streams with reduced data rate (increasing symbol
duration). Each sub-stream is modulated and transmitted on a separate orthogonal subcarrier. The
increased symbol duration improves the robustness of OFDMA to delay spread.
Fig. 6 Description of OFDMA modulation
Furthermore, the introduction of the cyclic prefix (CP) can completely eliminate inter-symbol
interference (ISI) as long as the CP duration is longer than the channel delay spread. The CP is
typically a repetition of the last samples of the data portion of the block, which are appended to the
beginning of the data payload as shown in Fig. 7.
The CP prevents inter-block interference, makes the channel appear circular, and permits lowcomplexity frequency domain equalization. A perceived drawback of CP is that it introduces
overhead, which effectively reduces bandwidth efficiency. While the CP does reduce bandwidth
efficiency somewhat, the impact of the CP is similar to the ‘roll-off factor’ in raised-cosine filtered
single-carrier systems.
Fig. 7 CP (Cyclic Prefix) concept
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MEASUREMENT GUIDE
Fig. 8 Eliminating ISI by CP
The OFDMA symbol is composed of three types of subcarrier, as shown in Fig. 9: data subcarriers
for data transmission, pilot subcarriers for estimation and synchronization purposes, and null
subcarriers for no transmission, together with guard bands and DC carriers
Active (data and pilot) subcarriers are grouped into subsets of subcarriers called sub-channels.
The WiMAX OFDMA PHY [3] supports sub-channelization in both DL and UL.
Fig. 9 OFDMA subcarriers
WiMAX and 802.16e standard
The IEEE 802.16 group produced 802.16a, to include NLOS applications in the 2 GHz–11 GHz
band, using an orthogonal frequency division multiplexing (OFDM)-based physical layer.
Additions to the MAC layer, such as support for orthogonal frequency division multiple access
(OFDMA), were also included. Further revisions resulted in a new standard in 2004, called
IEEE 802.16-2004, which replaced all prior versions and formed the basis for the first WiMAX
solution. These early WiMAX solutions, based on IEEE 802.16-2004, targeted fixed applications,
and we refer to these as ‘fixed WiMAX’.
In 2005, the IEEE group completed and approved IFEEE 802.16e-2005, an amendment to the
IEEE 802.16-2004 standard that added mobility support. IEEE 802.16e-2005 forms the basis for
the WiMAX solution for nomadic and mobile applications and is often referred to as ‘mobile
WiMAX’. The basic characteristics of the various IEEE 802.16 standards are summarized in
Table 1.
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MEASUREMENT GUIDE
Table 1 IEEE-802.16 basic parameters
802.16-2004
Frequency band
Application
MAC architecture
Transmission scheme
2 GHz ~ 11 GHz
Gross rata rate
Multiplexing
Duplexing
Channel bandwidth
2 GHz–11 GHz for fixed;
2 GHz–6 GHz for mobile applications
Fixed NLOS
Fixed and mobile NLOS
Point to multipoint mesh
Point to multipoint mesh
Single carrier,
Single carrier, 256 OFDM or scalable
OFDM with 128, 512, 1,024, or 2,048
subcarriers
256 OFDM or 2,048 OFDM
Modulation
802.16e-2005
QPSK, 16QAM, 64QAM
QPSK, 16QAM, 64QAM
1 Mbps ~ 75 Mbps
1 Mbps ~ 75 Mbps
Burst TDM/TDMA/OFDMA
Burst TDM/TDMA/OFDMA
TDD and FDD
TDD and FDD
1.75 MHz, 3.5 MHz, 7 MHz,
14 MHz, 1.25 MHz, 5 MHz,
10 MHz, 15 MHz, 8.75 MHz
1.75 MHz, 3.5 MHz, 7 MHz, 14 MHz,
1.25 MHz, 5 MHz, 10 MHz, 15 MHz,
8.75 MHz
Definition of mobile WiMAX basic parameters
Mobile WiMAX, which is based on the IEEE 802.16e-2005 standard, uses a scalable OFDMAbased physical layer. In the case of mobile WiMAX, the FFT sizes can vary from 128 bits to
2,048 bits. The terms described here follow the IEEE 802.16e-2005 standard.
Primitive parameters definitions
BW: this is the nominal channel bandwidth.
Nused: number of used subcarriers (which includes the DC subcarrier).
n: sampling factor. This parameter, in conjunction with BW and Nused, determines the subcarrier
spacing and the useful symbol time. This value is set to 8/7 as follows: for channel bandwidths
that are a multiple of 1.75 MHz, n = 8/7. For channel bandwidths that are a multiple of any of
1.25, 1.5, 2 or 2.75 MHz, n = 28/25. For channel bandwidths not otherwise specified n = 8/7.
G: this is the ratio of CP time to ‘useful’ time. The following values are supported: 1/32, 1/16,1/8,
and 1/4.
Definition of slot
The definition of an OFDMA slot depends on the OFDMA symbol structure, which varies for
uplink and downlink, for FUSC and PUSC, and for the distributed subcarrier permutations and the
adjacent subcarrier permutation.
For downlink FUSC and downlink optional FUSC using the distributed subcarrier permutation,
one slot is one sub-channel by one OFDMA symbol.
For downlink PUSC using the distributed subcarrier permutation, one slot is one sub-channel by
two OFDMA symbols.
For uplink PUSC using either of the distributed subcarrier permutations, and for downlink
TUSC1, one slot is one sub-channel by three OFDMA symbols.
For the adjacent subcarrier permutation, one slot is one sub-channel by two, three, or six OFDMA
symbols.
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MEASUREMENT GUIDE
Mobile WiMAX (802.16e) physical parameters
In Mobile WiMAX, the FFT size is scalable from 128 to 2,048. Here, when the available
bandwidth increases, the FFT size is also increased such that the subcarrier spacing is always
10.94 kHz. This keeps the OFDM symbol duration, which is the basic resource unit, fixed and
therefore scaling has minimal impact on higher layers. A scalable design also keeps the costs low.
The subcarrier spacing of 10.94 kHz was chosen as a good balance between satisfying the delay
spread and Doppler spread requirements for operating in mixed fixed and mobile environments.
This subcarrier spacing can support delay-spread values up to 20 μs and vehicular mobility up to
125 km/h when operating in 3.5 GHz. A subcarrier spacing of 10.94 kHz implies that 128, 512,
1,024, and 2,048 FFT are used when the channel bandwidth is 1.25 MHz, 5 MHz, 10 MHz, and
20 MHz, respectively. It should, however, be noted that mobile WiMAX may also include
additional bandwidth profiles (see the column in italics in Table 2). For example, a profile
compatible with WiBro will use an 8.75 MHz channel bandwidth and 1,024 FFT. This obviously
requires a different subcarrier spacing and hence does not have the same scalability properties.
Table 2 IEEE-802.16e time, frequency parameters
Parameters
Values
System BW
(MHz)
1.25
Sampling factor
28/25
Sampling
frequency
(Fs,MHz)
Sampling time
(1/Fs,nsec)
FFT size (NFFT)
Subcarrier
frequency
spacing
(∆ f,kHz)
5
10
20
3.5
7
8.75
8/7
1.4
5.6
11.2
22.4
4
8
10
714.3
178.6
89.3
44.6
250
125
100
128
512
1024
2048
512
1024
1024
10.9375
7.8125
9.765625
Useful symbol
time
(Tb=1/∆ f,us)
91.4
128
102.4
Guard time
(Tg=Tb/8)
11.4
16
12.8
OFDMA symbol
time
(Ts=Tb+Tg,us)
102.8
144
115.2
Mobile WiMAX (802.16e) frame structure (in TDD operation mode)
The 802.16e standard supports TDD (Time Division Duplex) and Full and Half-Duplex FDD
(Frequency Division Duplex) operation. With ongoing releases, FDD profiles will be considered
by the WiMAX Forum to address specific market opportunities where local spectrum regulatory
requirements either prohibit TDD or are more suitable for FDD deployments.
Even TDD operation requires system-wide synchronization; TDD is the preferred duplexing mode
for the following reasons:
TDD enables adjustment of the downlink/uplink ratio to efficiently support asymmetric
downlink/uplink traffic, while with FDD, downlink and uplink always have fixed and
generally, equal DL and UL bandwidths.
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MEASUREMENT GUIDE
TDD assures channel reciprocity for better support of link adoption, MIMO and other
closed-loop advanced antenna technologies.
Unlike FDD, which requires a pair of channels, TDD only requires a single channel for
both downlink and uplink, providing greater flexibility for adapting to varied global
spectrum allocations.
Transceiver designs for TDD implementations are less complex and therefore less expensive.
Fig. 10 illustrates the OFDM frame structure in TDD (Time Division Duplex) mode
implementation. Each frame is divided into DL and UL sub-frames separated by
Transmit/Receive and Receive/Transmit Transition Gaps (TTG and RTG, respectively) to prevent
DL and UL transmission collisions. In a frame, the following control information is used to
ensure optimal system operation:
Preamble: the preamble, used for synchronization, is the first OFDM symbol of the frame.
Frame Control Header (FCH): the FCH follows the preamble. It provides the frame
configuration information such as MAP message length and coding scheme and usable subchannels.
DL-MAP and UL-MAP: the DL-MAP and UL-MAP provide sub-channel allocation and
other control information for the DL and UL sub-frames respectively.
UL Ranging: the UL ranging sub-channel is allocated for mobile stations (MS) to perform
closed-loop time, frequency, and power adjustment as well as bandwidth requests.
Fig. 10 Example of an OFDMA frame in TDD mode
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MEASUREMENT GUIDE
WiMAX transmitter test (spectrum & power)
Spectrum measurement
This measurement shows the spectrum analysis result based on the FFT method. This mode of
spectrum is a free-run mode of operation.
Fig. 11 FFT measurement (802.16e DL signal)
Power vs time
This measurement shows OFDMA burst characteristics in the time domain. Its measurement can
be gated on and off by the S/W trigger method, based on its burst information, which you set: so
the ‘Power vs Time’ measurement can be seen in either ‘free run’ or ‘gated’ mode.
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MEASUREMENT GUIDE
Fig. 12 Power vs Time in gated mode (802.16e DL signal)
Fig. 13 Power vs Time in Free run mode (802.16e UL signal)
CCDF
The CCDF (Complementary Cumulative Distribution Function) of the transmit output power is
another important measurement of WiMAX transmitter quality. Because OFDM signals tend to
exhibit high peak-to-average ratios, due to the AM of the subcarriers, CCDF measurements can
help analyze WiMAX transmitter or power amplifier performance.
CCDF shows the distribution of peak-to-average power ratio (PAPR) versus the probability of a
particular peak level occurring. Time gating is essential when making CCDF measurements on
the OFDMA signal. The CCDF can be seen simultaneously with the power vs time measurement.
It can be time-gated, and you can vary its time-gate position and length.
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MEASUREMENT GUIDE
As can be seen in Fig. 14, the CCDF measurement area can be set for its start time and interval as
specified ‘t1’ and ‘t2’. Specifically, Fig. 14 shows the CCDF measurement for the 802.16e
(Downlink) preamble area (one symbol length) and Fig. 15 shows the CCDF measurement for the
data burst area (two symbol length). The different measurement result is derived from its different
modulation method (preamble is modulated with BPSK and data burst modulated with QPSK or
QAM modulation method).
Fig. 14 CCDF measurement (802.16e DL signal, Preamble)
Fig. 15 CCDF measurement (802.16e DL signal, Data burst)
Power vs time with crest factor
The crest factor, or peak-to-average ratio (PAR), or peak-to-average power ratio (PAPR), is a
measurement of a waveform, calculated from the peak amplitude of the waveform divided by the
RMS (time-averaged) value of the waveform. It is therefore a dimensionless quantity (dB scale).
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MEASUREMENT GUIDE
For a burst signal, the crest factor can be divided into burst crest factor and normal crest factor.
Burst crest factor can be measured in ‘Gate On’ mode, while normal crest factor can be measured
in the ‘Gate Off’ mode of operation. Similarly to the previous measurement, you can vary the
time gate position and length: it is specified by ‘t1’ and ‘t2’ as shown in Fig. 16 and Fig. 17.
Fig. 16 shows the crest factor measurement result for preamble and Fig. 17 shows the data burst
area; as it has a different modulation scheme its crest factor is different to its area of burst.
Fig. 16 Crest factor measurement (802.16e DL signal, Preamble)
Fig. 17 Crest factor measurement (802.16e DL signal, Data burst)
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MEASUREMENT GUIDE
Spectral flatness
Spectral flatness is a measure of the consistency in power level of the subcarriers that compose a
WiMAX OFDMA signal. As specified in the WiMAX specification (IEEE -802.16e), adjacent
subcarriers are required to be within 0.1 dB in amplitude level. Some deviation is assumed in the
overall levels of the carrier, with a window defined by the standard. The close-in or inner one-half
subcarriers in a WiMAX burst signal should be within ±2 dB of the average power level of the
burst signal, while the outer one-half of the subcarriers should be within +2 and –4 dB of the
average power level of the burst signal. IEE 802.16e specifies this regulation of spectral flatness
as shown in Table 3.
Table 3 Spectral flatness specification in IEEE-802.16e
Spectral lines
Spectral flatness
Spectral lines from –Nused/4 to –1 and +1 to
Nused/4
±2 dB from the measured energy averaged over all
Nused active tones
Spectral lines from –Nused/2 to –Nused/4 and
+Nused/4 to Nused/2
+2/–4 dB from the measured energy averaged over
all Nused active tones
Fig. 18 Spectral flatness measurement (802.16e DL signal)
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MEASUREMENT GUIDE
WiMAX transmitter test (modulation quality)
Configuration for modulation quality measurement
To get an appropriate measurement result for modulation quality, you must set the exact value for
various frequency, timing and frame parameters for the WiMAX signal. There are two methods
given in this WiMAX option for setting these parameters. First, you only need to select the
standard with its bandwidth parameters (5 MHz std, 7 MHz Std, 8.75 MHz Std, 10 MHz Std).
These parameters can be referenced in Table 2, and are specified in the IEEE 802.16e standard.
The parameters are as below:
Bandwidth: 1.25 MHz, 3.5 MHz, 4.375 MHz, 5 MHz, 7 MHz, 8.75 MHz (default),
10 MHz, 20 MHz
FFT size: 128, 512, 1024 (default), 2048
Guard period: 1/4, 1/8 (default), 1/16, 1/32
Frame duration: 2.5 ms, 4 ms, 5 ms (default), 8 ms, 10 ms, 12.5 ms
Fig. 19 shows an 802.16e 10MHz standard signal example for configuring link direction and
frequency and timing parameters in EVM measurement mode.
Go to this menu by pressing [Mode]. [NEXT], [802.16 OFDMA], [Setup].
Fig. 19 Set frequency and timing parameters (802.16e DL signal)
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MEASUREMENT GUIDE
In addition to setting frequency and timing parameters, zone and burst parameters can be
configured by selecting [More 1 of 2] in Fig. 19. The zone parameters are as below:
Zone number (active zone)
Zone type
Zone length
Zone offset
Permutation base
Fig. 20 gives a simple example for zone configurations.
Go to this menu by pressing [Mode]. [NEXT], [802.16 OFDMA], [Setup], [NEXT],
[Edit Zone Info].
Fig. 20 Set parameters for zone (802.16e DL signal)
Burst zone parameters are as below:
Burst number (active burst)
Burst symbol number
Burst sub-channel number
Burst symbol offset
Burst modulation type: QPSK, 16QAM, 64QAM
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MEASUREMENT GUIDE
Fig. 21 gives a simple example for burst configurations. Burst can be added by selecting
[Add Burst] and can be deleted by select [Delete Burst]. Go to this menu by pressing [Mode].
[NEXT], [802.16 OFDMA], [Setup], [NEXT], [Edit Zone Info], [NEXT].
Fig. 21 Set parameters for Burst (802.16e DL signal)
EVM measurement
Modulation accuracy is the relative difference between a received signal constellation point and its
ideal constellation point. As noted above, the measurement is carried out on both modulated and
unmodulated carriers to ensure that the MS does not degrade the link for itself or other users. The
equalizer is set to operate on pilots, and remove amplitude, phase, and timing errors, thereby
matching the expected capability of a BS receiver.
To measure EVM, go to [Mode]. [NEXT], [802.16 OFDMA], [MEASURE], [EVM].
Fig. 22 Measuring EVM for WiMAX signal (802.16e DL signal)
25
MEASUREMENT GUIDE
Constellation measurement
There are three modulation types available for modulating the data onto the subcarriers: QPSK,
16QAM, and 64QAM. In the UL, the transmit power is automatically adjusted when the
modulation coding sequence (MCS) changes to maintain the required nominal carrier-to-noise
ratio at the BS receiver. 64QAM is not mandatory for the UL. Binary phase shift keying (BPSK)
modulation is used during the preamble, on the pilots, and when modulating subcarriers in the
ranging channel.
The IEEE-802.16e standard defines the allowed relative constellation error (RCE) as you can see
in Table 4.
This constellation measurement separates modulation burst by color. Fig. 23 shows two type of
modulation, one is BPSK (preamble) and the other is QPSK (data burst).
To measure constellation, go to [Mode]. [NEXT], [802.16 OFDMA], [MEASURE],
[Constellation].
Table 4 Allowed relative constellation error versus data rate
Burst type
Relative constellation for SS
(dB)
Relative constellation for BS
(dB)
QPSK-1/2
-15
-15
QPSK-3/4
-18
-18
16-QAM-1/2
-20.5
-20.5
16-QAM -3/4
-24
-24
64-QAM-1/2
-26
-26
64-QAM-2/3
-28
-28
64-QAM-3/4
-30
-30
Fig. 23 Measuring constellation for WiMAX signal (802.16e DL signal)
Frequency error measurement
At the SS, both the transmitted center frequency and the sampling frequency are derived from the
same reference oscillator. The SS uplink transmission is locked to the BS, so that its center
frequency deviates no more than 2% of the subcarrier spacing, compared to the BS center
frequency.
26
MEASUREMENT GUIDE
In the case of an 8.75 MHz BW WiMAX signal (WiBro), the subcarrier spacing is 9.765625 kHz.
This means that the allowed transmitter frequency error must be less than 195.3125 Hz. This
measurement can be seen on EVM and constellation measurements with modulation quality
parameters.
27
Menu descriptions
WiMAX measurement mode
To use WiMAX measurement options, first set the system to WiMAX mode:
Mode
FFT Analysis
Phase Noise
EMI Receiver
Vector Analyzer..
802.16e OFDMA..
Select [MODE], then press [802.16e OFDMA] mode at the right side of the screen.
Mode setup
Press [Setup] in WIMAX mode:
Setup
Link Direction
Bandwidth
FFT Size
Guard Period
Frame Duration
Standard
Edit Zone Info..
Link Direction
Determine the link direction for WiMAX signal source to be analyzed (default:
Down Link)
Bandwidth
Select bandwidth parameter for WiMAX signal source to be analyzed. This
value varies from 1.25 MHz to 20 MHz (default: 8.75 MHz)
FFT Size
Select FFT parameter for WiMAX signal source to be analyzed. This value
varies from 128 to 2048 (default: 1024)
Guard Period
Select Guard period parameter for WiMAX signal source to be analyzed. This
value can be 1/4, 1/8, 1/16, 1/32 (default: 1/8)
Frame Duration
Select Guard frame duration parameter for WiMAX signal source to be analyzed.
This value varies from 2 ms to 20 ms (default: 5 ms)
Standard
Select BW-based standard, which has unique time-frequency parameters.
Standard list is 5MHz Std, 7MHz Std, 8.75MHz Std, 10MHz Std (which is the
most reliable standard)
28
MENU DESCRIPTIONS
Edit Zone Info
Set the zone and burst parameters that specify the input WiMAX signal.
Zone configuration parameters:
Active Zone: Current activated zone
Zone Type: PUSC
Zone offset
Zone Permutation Base
Burst configuration parameters
Active burst: Current activated burst
Burst symbols
Burst subchannel
Burst symbol offset
Burst subchannel offset
Burst modulation type: QPSK, 16QAM, 32QAM
Frequency menu
Press [FREQ] in WiMAX mode:
FREQ
Center Frequency
You can access frequency functions from this menu.
Center Frequency
Set to center frequency: 1 kHz to 3 / 8 / 13.2 / 26.5 GHz
Span menu (FFT analysis only)
Press [SPAN] in WiMAX mode:
SPAN
SPAN
SPAN
Set to span frequency: 100 kHz to 30 MHz.
Amplitude menu
Press [AMPL] in WiMAX mode:
AMPL
Ref. Level
Scale/Div
Attenuator Lev
IQ Scale Max
Ref Offset
Amplitude menu keys are used for setting functions that affect the way data on the vertical axis is
displayed or corrected.
Ref. Level
This allows you to set the value in dBc/Hz of a specified position on
the graticule display.
Scale/Div
This allows you to set the value of scale in dB for each division of Yaxis.
Attenuator Lev
This allows you to set the internal attenuator level in dB.
IQ Scale Max
This allows you to set the value of I/Q scale of Y-axis.
Ref Offset
Sets the offset value for the displayed signal.
29
MENU DESCRIPTIONS
Measure menu
Press [MEAS] in WiMAX mode:
MEAS
FFT Analysis
Power vs Time
Spectral Flatness
Constellation
I/Q Wave & Constellation
EVM
CCDF
FFT Analysis
Analyzes a WiMAX signal in spectrum mode.
Power vs Time
Measures power vs time of a WiMAX signal.
Spectral
Flatness
Measures the spectral flatness of a WIMAX signal for its sub-carrier. The
Pass/Fail result for carrier flatness is measured and displayed (refer
IEEE 802.16e Std).
Constellation
Measures the constellation diagram for a WIMAX input signal. The
modulation-related numerical result is shown on the left side of the window.
I/Q wave &
Constellation
Shows the constellation result simultaneously with its I/Q wave versus
time.
EVM
Measure the Error Vector Magnitude for a WIMAX input signal. ‘EVM vs
Symbols’ and ‘EVM vs Sub-carriers’ are shown.
CCDF
Measures the CCDF (Complementary Cumulative Distribution Function) of
the WiMAX signal.
Measure control menu (except FFT analysis)
Press [CONTROL] in WiMAX mode:
Control
Capture Time
Capture Time
Specifies the time to be captured for I/Q analysis. The maximum capture
time differs according to the sampling rate.
30
MENU DESCRIPTIONS
Marker menu (FFT analysis only)
Press [MARKER] in WiMAX mode:
Marker
Select Marker
Normal
Delta
OFF
All OFF
Select Marker
Allows you to select one of the four possible markers. Having selected one of the
markers, use the other soft keys on this menu to specify the type of marker or
measurement.
Normal
Sets the specified marker to be a normal marker.
Delta
A delta marker is actually a pair of markers. By pressing Delta, you set a pair of
markers at your current frequency offset. One of this pair of markers is fixed while the
second of the pair can be moved using the scroll knob or the numeric keys. The
frequency difference and the amplitude difference between these two points is
displayed.
OFF
Switches the specified marker off.
All OFF
Switches all markers off. All markers are removed from the graticule display, and if the
marker table is also being displayed, all entries are removed from it.
Peak menu (FFT analysis only)
Press [PEAK] in WiMAX mode:
Peak
Peak
Next Peak
Peak
Sets active marker to max level of FFT trace.
Next Peak
Sets active marker to next max level of FFT trace.
Display menu
Press [Display] in WiMAX mode:
Display
White Mode
Graticule
White Mode
Change the screen background to white.
Graticule
Allows you to display or hide the graticule lines on the display.
31
MENU DESCRIPTIONS
Sweep menu
Press [Sweep] in WiMAX mode:
Sweep
Single
Continuous
Single
The analyzer performs one single measurement and then stops. You have
to press [Restart] every time you want to make another measurement.
Continuous
The analyzer continuously measures the signal it is receiving and
repeatedly updates the plots and the measurements.
BW menu
Press [BW] in WiMAX mode:
BW
RBW Manual/Auto
RBW
RBW
Manual/Auto
Sets RBW mode to manual or auto. In Auto mode, RBW is set
automatically to Span/100.
RBW
Set to RBW value (1 kHz to 300 kHz).
Trace menu (FFT analysis only)
Press [TRACE] in WiMAX mode:
Trace
Max Hold
Average
AVG. Count
Max Hold
Trace level is maximum level.
Average
Trace level is averaged. The trace is then smoothed.
Avg. Count
Set to the average count (2 to 1000).
Preset menu
Press [Preset] in WiMAX mode:
Preset
Preset
The sub menus of [Preset] have the same function as in the basic spectrum analysis mode. Please
refer to the Spectrum Analyzer Operating Manual (part number 46892/974) for other soft key
functions.
32
Detailed description of commands
General
This section gives detailed descriptions of the device messages for the spectrum analyzer in
functional order. The following example shows the command format.
Note that ‘ ’ = ‘blank’ throughout this document.
SA command
SCPI command
Command Name
Function
The explanation of the command.
Remote Command
SA Command sw
SA Command f
SA Command?
SCPI Command sw
SCPI Command f
SCPI Command?
Response Message
sw or f
(Depending on command)
Value of f
Range of sw or f
(Depending on command)
Suffix code
Unit of f
(Depending on command)
Initial setting
Initial value for SA System
Example
SA Command sw;
SA Command f;
SA Command?;
SCPI Command sw;
SCPI Command f;
SCPI Command?;
33
DETAILED DESCRIPTION OF COMMANDS
Amplitude
RL
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel
Reference Level
Function
Sets the reference level value.
Remote Command
RL f
RL?
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel f
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel?
Response Message
Reference Level (dBm)
Value of f
−170 dBm to 30 dBm (Step : 0.01 dBm)
Suffix code
None
: dBm
DBM
: dBm
Initial setting
0 dBm
Example
RL 10;
RL 30DBM;
RL ?;
DISP:WIND:TRAC:Y:RLEV 10;
DISP:WIND:TRAC:Y:RLEV 30DBM;
DISP:WIND:TRAC:Y:RLEV?;
34
DETAILED DESCRIPTION OF COMMANDS
AT
[:SENSE]:POWer[:RF]:ATTenuation
Attenuation
Function
Sets the amount of attenuation for the input attenuator.
Remote Command
AT f
AT?
[:SENSe]:POWer[:RF]:ATTenuation f
[:SENSe]:POWer[:RF]:ATTenuation?
Response Message
amount of attenuation (dB)
Value of f
0 dB to 55 dB (Step : 5 dB)
Suffix code
None
: dB
DB
: dB
Initial setting
10 dB
Example
AT 10;
AT 10DB;
AT?;
POW:ATT 10;
POW:ATT 10DB;
POW:ATT?;
35
DETAILED DESCRIPTION OF COMMANDS
SD
:DISPlay:LPLot:WINDow:TRACe:Y[:SCALe]:PDIVision
Scale/Divide
Function
Sets the scale/divide value.
Remote Command
SD f
SD?
:DISPlay:LPLot:WINDow:TRACe:Y[:SCALe]:PDIVision f
:DISPlay:LPLot:WINDow:TRACe:Y[:SCALe]:PDIVision?
Response Message
Scale/Divide (dB/div)
Value of f
0.01 dB to 20 dB (step : 0.01 dB)
Suffix code
None
: dB/div
DB
: dB/div
Initial setting
10 dB/div
Example
SD 5;
SD 10DB;
SD?;
DISP:LPL:WIND:TRAC:Y:PDIV 5;
DISP:LPL:WIND:TRAC:Y:PDIV 10DB;
DISP:LPL:WIND:TRAC:Y:PDIV?;
36
DETAILED DESCRIPTION OF COMMANDS
Average (FFT Analysis Only)
AVG
[:SENSe]:AVERage[:STATe]
Average
Function
Turns the trace average to on or off. Depends on the condition
of the average count and the average mode.
Remote Command
AVG n
AVG sw
AVG?
[:SENSe]:AVERage[:STATe] n
[:SENSe]:AVERage[:STATe] sw
[:SENSe]:AVERage[:STATe]?
Response Message
Value of n
Value of sw
1
: ON
0
: OFF
1
: ON
0
: OFF
ON
: ON
OFF
: OFF
Initial setting
0
Example
AVG 1;
AVG ON;
AVG?;
AVER 1;
AVER ON;
AVER?;
37
DETAILED DESCRIPTION OF COMMANDS
AVGC
[:SENSe]:AVERage:COUNt
Average Count
Function
Sets the averaging count.
Remote Command
AVGC n
AVGC?
[:SENSe]:AVERage:COUNt n
[:SENSe]:AVERage:COUNt?
Response Message
Average count
Value of n
2 to 1000
Initial setting
100
Example
AVGC 30;
AVGC?;
AVER:COUN 30;
AVER:COUN?;
38
DETAILED DESCRIPTION OF COMMANDS
Bandwidth (FFT analysis only)
RB
[:SENSe]:BANDwidth|BWIDth[:RESolution]
Resolution Bandwidth
Function
Sets the NBW value.
Remote Command
RB f
RB?
[:SENSe]:BANDwidth|BWIDth[:RESolution] f
[:SENSe]:BANDwidth|BWIDth[:RESolution]?
Response Message
Resolution Bandwidth (Hz)
Value of f
1 kHz to 300 kHz / 1 MHz / 2 MHz (Step : 10 Hz)
Suffix code f
None
: Hz (10^0)
HZ
: Hz (10^0)
KHZ
: kHz (10^3)
MHZ
: MHz (10^6)
GHZ
: GHz (10^9)
Initial setting
Span/100
Example
RB 1000;
RB 3KHZ;
RB?
BAND 1000;
BAND 3KHZ;
BAND?;
39
DETAILED DESCRIPTION OF COMMANDS
RBA
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO
Resolution Bandwidth Auto
Function
Sets the NBW mode to the auto mode or the manual mode.
Remote Command
RBA n
RBA sw
RBA?
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO n
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO sw
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO?
Response Message
Value of n
Value of sw
1
: ON
0
: OFF
1
: ON
0
: OFF
ON
: ON
OFF
: OFF
Initial setting
1
Example
RBA 1;
RBA ON;
RBA?
BAND:AUTO 1;
BAND:AUTO ON;
BAND:AUTO?;
40
DETAILED DESCRIPTION OF COMMANDS
Display
GRAT
:DISPlay:WINDow:TRACe:GRATicule:GRID[:STATe]
Graticule
Function
Sets the display graticule to Type1 or Type2 or OFF.
Remote Command
GRAT sw
GRAT?
:DISPlay:WINDow:TRACe:GRATicule:GRID[:STATe] sw
:DISPlay:WINDow:TRACe:GRATicule:GRID[:STATe]?
Response Message
Value of sw
TYPE1
: Type1
TYPE2
: Type2
OFF
: OFF
TYPE1
: Type1
TYPE2
: Type2
OFF
: OFF
Initial setting
TYPE1
Example
GRAT TYPE1;
GRAT?
DISP:WIND:TRAC:Y:GRAT:GRID TYPE1;
DISP:WIND:TRAC:Y:GRAT:GRID?;
41
DETAILED DESCRIPTION OF COMMANDS
WH
:DISPlay:WINDow:WHITe
White Mode
Function
Turns the white mode ON or OFF.
Remote Command
WH n
WH sw
WH?
:DISPlay:WINDow:WHITe n
:DISPlay:WINDow:WHITe sw
:DISPlay:WINDow:WHITe?
Response Message
Value of n
Value of sw
1
: ON
0
: OFF
1
: ON
0
: OFF
ON
: ON
OFF
: OFF
Initial setting
0
Example
WH 1;
WH ON;
WH?
DISP:WIND:WHIT 1;
DISP:WIND:WHIT ON;
DISP:WIND:WHIT?;
42
DETAILED DESCRIPTION OF COMMANDS
File
FREAD
:MMEMory:CATalog
File Read
Function
Reads files in the selected folder.
Remote Command
FREAD? ‘file_folder’
:MMEMory:CATalog? ‘file_folder’
Value of file_folder
File Folder
Response Message
File Name,,File Size.
Example
FREAD? ‘C:’;
FREAD? ‘D:\Temp’;
MMEM:CAT? ‘C:’;
MMEM:CAT? ‘D:\Temp’;
43
DETAILED DESCRIPTION OF COMMANDS
FSAVE
:MMEMory:STORe
File Save
Function
Saves the file, type defined by the extension.
Remote Command
FSAVE ‘file_name’
:MMEMory:STORe ‘file_name’
Value of file_name
File Path + File Name
Supported Extension
csv
: I/Q data
bmp
: Bitmap
jpg
: jpeg
png
: png
zon
: Zone/Burst
Example
FSAVE ‘C:\demo.zon’;
MMEM:STRO ‘C:\demo.zon’;
44
DETAILED DESCRIPTION OF COMMANDS
FLOAD
:MMEMory:LOAD
File Load
Function
Loads the selected file.
Remote Command
FLOAD ‘file_name’
:MMEMory:LOAD ‘file_name’
Value of file_name
File Path + File Name
Supported Extension
zon
Example
FLOAD ‘C:\demo.zon’;
: Zone/Burst
MMEM:LOAD ‘C:\demo.zon’;
45
DETAILED DESCRIPTION OF COMMANDS
FDEL
:MMEMory:DELete
File Delete
Function
Deletes the selected file.
Remote Command
FDEL ‘file_name’
:MMEMory:DELete ‘file_name’
Value of file_name
File Path + File Name
Example
FDEL ‘C:\demo.bmp’;
MMEM:DEL ‘C:\demo.bmp’;
46
DETAILED DESCRIPTION OF COMMANDS
FCOPY
:MMEMory:COPY
File Copy
Function
Copies the selected file.
Remote Command
FCOPY ‘src_file_name’, ‘dest_file_name’
:MMEMory:COPY ‘src_file_name’, ‘dest_file_name’
Value of src_file_name, dest_file_name
Example
File Path + File Name
FCOPY ‘C:\demo.bmp’,‘D:\demo.bmp’;
MMEM:COPY ‘C:\demo.bmp’,‘D:\demo.bmp’;
47
DETAILED DESCRIPTION OF COMMANDS
FRENAME
:MMEMory:MOVE
File Rename
Function
Renames the selected file.
Remote Command
FRENAME ‘src_file_name’,‘dest_file_name’
:MMEMory:MOVE ‘src_file_name’,‘dest_file_name’
Value of src_file_name, dest_file_name
Example
File Path + File Name
FRENAME ‘C:\demo.bmp’,‘C:\demo1_1.bmp’;
MMEM:MOVE ‘C:\demo1.bmp’,‘C:\demo1_1.bmp’;
48
DETAILED DESCRIPTION OF COMMANDS
FMOVE
MMEMory:DATA
File Move
Function
Sends or receives binary data of the selected file. The
maximum size of the sent file is 2 Mbyte, and the maximum
size of the received file is 30 Mbyte.
Remote Command
FMOVE ‘file_name’,definite_length_block
FMOVE? ‘file_name’
MMEMory:DATA ‘file_name’,definite_length_block
MMEMory:DATA? ‘file_name’
Value of file_name
File Path + File Name
Value of definite_length_block
# + number of file size + file size + file data
Example
FMOVE ‘C:\Sended_Sample.txt’,#14abcd; cf) #+1+4+abcd
FMOVE? ‘C:\Received_Sample.txt’;
MMEM:DATA ‘C:\ Sended_Sample.txt’,#14abcd;
MMEM:DATA? ‘C:\ Received_Sample.txt’;
49
DETAILED DESCRIPTION OF COMMANDS
Frequency
CF
[:SENSe]:FREQuency:CENTer
Center Frequency
Function
Sets the center frequency.
Remote Command
CF f
CF?
[:SENSe]:FREQuency:CENTer f
[:SENSe]:FREQuency:CENTer?
Response Message
Center Frequency (Hz)
(Range : 1 kHz to 3 / 8 / 13.2 / 26.5 GHz)
Value of f
1 kHz to 3 / 8 / 13.2 / 26.5 GHz
Suffix code
None
: Hz (10^0)
HZ
: Hz (10^0)
KHZ
: kHz (10^3)
MHZ
: MHz (10^6)
GHZ
: GHz (10^9)
Initial setting
1.5 / 4 / 6.6 / 12.25 GHz
Example
CF 123456;
CF 50MHZ;
CF?;
FREQ:CEN7T 123456;
FREQ:CENT 50MHZ;
FREQ:CENT?;
50
DETAILED DESCRIPTION OF COMMANDS
SR
[:SENSe]:FREQuency:SAMPling:RATE
Sampling Frequency
Function
Sets to Sampling Rate.
Remote Command
SR f
SR?
[:SENSe]:FREQuency:SAMPLing:RATE f
[:SENSe]:FREQuency:SAMPLing:RATE?
Response Message
Sampling Rate (Hz)
(50 kHz to 52 MHz)
Suffix code
None
: Hz (10^0)
HZ
: Hz (10^0)
KHZ
: kHz (10^3)
MHZ
: MHz (10^6)
Initial setting
According to Span and RBW
Example
USF 123456;
USF 50MHZ;
USF?;
FREQ:SAMP:RATE 123456;
FREQ:SAMP:RATE 50MHZ;
FREQ:SAMP:RATE?;
REF
:INPut:REFerence
Reference
Function
Sets to 10 MHz Reference.
Remote Command
REF sw
REF?
:INPut:REFerence sw
:INPut:REFerence?
Response Message
Value of sw
INT
: Internal
EXT
: External
INTernal: Internal
EXTernal: External
Initial setting
INT
Example
REF INT;
RFC?
INP:REF INT;
INP:REF?
51
DETAILED DESCRIPTION OF COMMANDS
Marker (FFT analysis only)
MS[1~9]
:CALCulate:MARKer[1~9]:STATe
Marker State
Function
Sets the selected marker state.
Remote Command
MS[1~9] n
MS[1~9] sw
MS[1~9]?
:CALCulate:CCDF:MARKer[1~9]:STATe n
:CALCulate:CCDF:MARKer[1~9]:STATe sw
:CALCulate:CCDF:MARKer[1~9]:STATe?
Response Message
Value of n
Value of sw
1
: ON
0
: OFF
1
: ON
0
: OFF
ON
: ON
OFF
: OFF
Initial setting
0
Example
MS 1;
MS5 1;
MS5?;
CALC:CCDF:MARK:STAT 1;
CALC:CCDF:MARK5:STAT ON;
CALC:CCDF:MARK5:STAT?
52
DETAILED DESCRIPTION OF COMMANDS
MM[1~9]
:CALCulate:MARKer[1~9]:MODE
Marker Mode
Function
Sets the selected marker to Normal, Delta Mode.
Remote Command
MM[1~9] sw
MM[1~9]?
:
CALCulate:MARKer[1~9]:MODE sw
:CALCulate:MARKer[1~9]:MODE?
Response Message
Value of sw
POS
: Normal
DELT
: Delta
OFF
: OFF
POSition
: Normal
DELTa
: Delta
OFF
: OFF
Initial setting
OFF
Example
MM POS;
MM5?;
CALC:CCDF:MARK:MODE POS;
CALC:CCDF:MARK5:MODE?
53
DETAILED DESCRIPTION OF COMMANDS
MF[1~9]
:CALCulate:MARKer[1~9]:X
Marker Frequency
Function
Sets the marker frequency of the selected marker. If the marker
mode is the delta mode, sets the difference value of the marker
frequency and the delta marker frequency.
Remote Command
MF[1~9] f
MF[1~9]?
:CALCulate:MARKer[1~9]:X f
:CALCulate:MARKer[1~9]:X?
Response Message
Marker Frequency (Hz)
Value of f
Start Frequency to Stop Frequency
Suffix code
None
: Hz (10^0)
HZ
: Hz (10^0)
KHZ
: kHz (10^3)
MHZ
: MHz (10^6)
GHZ
: GHz (10^9)
Initial setting
Center Frequency
Example
MF 123456;
MF5.1GHZ;
MF5?;
CALC:MARK:X 123456;
CALC:MARK5:X 1GHZ;
CALC:MARK5:X?
54
DETAILED DESCRIPTION OF COMMANDS
MA[1~9]
:CALCulate:MARKer[1~9]:Y
Marker Amplitude
Function
Returns the amplitude data.
Remote Command
MA[1~9]?
:CALCulate:MARKer[1~9]:Y?
Response Message
Marker Amplitude
Example
MA?;
MA5?
CALC:MARK:Y?
CALC:MARK5:Y?
55
DETAILED DESCRIPTION OF COMMANDS
MAO
:CALCulate:LPLot:MARKer:AOFF
Marker All OFF
Function
Turns off all markers.
Remote Command
MAO
:CALCulate:LPLot:MARKer:AOFF
Example
MAO;
CALC:LPL:MARK:AOFF;
56
DETAILED DESCRIPTION OF COMMANDS
Measurement
MEA
:MEASure:STARt
Measure Start
Function
Starts the measurement.
Remote Command
MEA sw
MEA?
:MEASure:STARt sw
:MEASure:STARt?
Response Message
Value of sw
Example
FFT
: FFT Analysis
PVT
: Power vs Time
PVTC
: Power vs Time (Crest Factor)
CCDF
: Power vs Time (CCDF)
SPEC
: Spectral Flatness
EVMC
: EVM (Constellation)
EVMW
: EVM (I/Q Wave vs Time)
EVM
: EVM (EVM vs Symbol/Subcarrier)
FFT
: FFT Analysis
PVT
: Power vs Time
PVTC
: Power vs Time (Crest Factor)
CCDF
: Power vs Time (CCDF)
SPEC
: Spectral Flatness
EVMC
: EVM (Constellation)
EVMW
: EVM (I/Q Wave vs Time)
EVM
: EVM (EVM vs Symbol/Subcarrier)
MEA FFT;
MEA?;
MEAS:STAR FFT;
MEAS:STAR?;
57
DETAILED DESCRIPTION OF COMMANDS
PVTOUT
:FETCh|MEASure|READ:PVTime
Power vs Time Output
Function
Return to results of Power vs Time.
Remote Command
PVTOUT?
:FETCh|MEASure|READ:PVTime?
Response Message
Burst Peak Power (dBm), Burst Average Power (dBm), Burst
Length (s)
Example
PVTOUT?;
MEAS:PVT?;
58
DETAILED DESCRIPTION OF COMMANDS
PVTCOUT
:FETCh|MEASure|READ:PVTime:CRESt
Power vs Time (Crest Factor) Output
Function
Return to results of Power vs Time (Crest Factor).
Remote Command
PVTCOUT?
:FETCh|MEASure|READ:PVTime:CRESt?
Response Message
Burst Peak Power (dBm), Burst Average Power (dBm), Burst
Length (s), t1~t2 Peak Power (dBm), t1~t2 Average Power
(dBm), t1~t2 Length (s), Crest Factor (dB)
Example
PVTCOUT?;
MEAS:PVT:CRES?;
59
DETAILED DESCRIPTION OF COMMANDS
CCDFOUT
:FETCh|MEASure|READ:PVTime:CCDF
Power vs Time (CCDF) Output
Function
Return to results of Power vs Time (CCDF).
Remote Command
CCDFOUT?
:FETCh|MEASure|READ:PVTime:CCDF?
Response Message
Average Power (dBm), Average Power Percent (%), 10%
Level Difference (dB), 1% Level Difference (dB), 0.1% Level
Difference (dB), 0.01% Level Difference (dB), 0.001% Level
Difference (dB), 0.0001% Level Difference (dB), Crest Level
Difference (dB), Counts, t1~t2 Length (s)
Example
CCDFOUT?;
MEAS:PVT:CCDF?;
60
DETAILED DESCRIPTION OF COMMANDS
FLATOUT
:FETCh|MEASure|READ:FLATness
Spectral Flatness Output
Function
Return to results of Spectral Flatness.
Remote Command
FLATOUT?
:FETCh|MEASure|READ:FLATness?
Response Message
All State, Upper State, Lower State
Example
FLATOUT?;
MEAS:FLAT?;
61
DETAILED DESCRIPTION OF COMMANDS
EVMCOUT
:FETCh|MEASure|READ:EVM:CONSTellation
EVM (Constellation) Output
Function
Return to results of EVM (Constellation).
Remote Command
EVMCOUT?
:FETCh|MEASure|READ:EVM:CONSTellation?
Response Message
EVM RMS (dB/%), EVM Data (dB/%), EVM RMS Pilot
(dB/%), EVM Peak Pilot (dB/%), EVM RMS Unmod (dB/%),
EVM Peak Unmod (dB/%), Frequency Error (Hz)
Example
EVMCOUT?;
MEAS:EVM:CONST?;
62
DETAILED DESCRIPTION OF COMMANDS
EVMWOUT
:FETCh|MEASure|READ:EVM:WVTime
EVM (I/Q Wave vs Time) Output
Function
Return to results of EVM (I/Q Wave vs Time).
Remote Command
EVMCOUT?
:FETCh|MEASure|READ:EVM:WVTime?
Response Message
EVM RMS (dB/%), EVM Data (dB/%), EVM RMS Pilot
(dB/%), EVM Peak Pilot (dB/%), EVM RMS Unmod (dB/%),
EVM Peak Unmod (dB/%), Frequency Error (Hz)
Example
EVMWOUT?;
MEAS:EVM:WVT?;
63
DETAILED DESCRIPTION OF COMMANDS
EVMOUT
:FETCh|MEASure|READ:EVM
EVM (EVM vs Symbol/SubCarrier) Output
Function
Return to results of EVM (EVM vs Symbol/SubCarrier).
Remote Command
EVMOUT?
:FETCh|MEASure|READ:EVM?
Response Message
EVM RMS (dB/%), EVM Data (dB/%), EVM RMS Pilot
(dB/%), EVM Peak Pilot (dB/%), EVM RMS Unmod (dB/%),
EVM Peak Unmod (dB/%), Frequency Error (Hz)
Example
EVMOUT?;
MEAS:EVM?;
64
DETAILED DESCRIPTION OF COMMANDS
Measurement control
MEAT
:MEASure:TIME
Capturing Time
Function
Sets to Capturing Time.
Remote Command
MEAT f
MEAT?
:MEASure:TIME f
:MEASure:TIME?
Response Message
Capturing Time (s)
Value of f
1 ms to max (max changes according to sampling rate)
Suffix
None
: s (10^0)
kSEC
: ks (10^3)
SEC
: s (10^0)
MSEC
: ms (10^-3)
Initial setting
5 ms
Example
MEAT 0.001;
MEAT 1MSEC;
MEAT?;
MEA:TIME 0.001;
MEA:TIME 1MSEC;
MEA:TIME?;
65
DETAILED DESCRIPTION OF COMMANDS
Mode
MODE
:INSTrument[:SELect]
Mode
Function
Sets Current Mode.
Remote Command
MODE sw
MODE?
:INSTrument[:SELect] sw
:INSTrument[:SELect]?
Response Message
Value of sw
SA
: Spectrum Mode
VECTOR
: Vector Analyzer Mode
WIMAX
: WiMAX mode
SA
: Spectrum Mode
VECTOR
: Vector Analyzer Mode
WimAX
: WiMAX Mode
Initial setting
SA
Example
MODE SA;
MODE?;
INST SA;
INST?;
66
DETAILED DESCRIPTION OF COMMANDS
Mode setup
WIMAXSTD
WiMAX Standard
Function
Sets to WiMAX Standard.
Remote Command
WIMAXSTD sw
WIMAXSTD?
Response Message
802.16e10MHZ
: 802.16e 10 MHz
802.16e8.75MHZ : 802.16e 8.75 MHz
Value of sw
802.16e7MHZ
: 802.16e 7 MHz
802.16e5MHZ
: 802.16e 5 MHz
802.16e10MHZ
: 802.16e 10 MHz
802.16e8.75MHZ : 802.16e 8.75 MHz
802.16e7MHZ
: 802.16e 7 MHz
802.16e5MHZ
: 802.16e 5 MHz
Initial setting
802.16e8.75MHZ
Example
WIMAXSTD 802.16e8.75MHZ;
WIMAXSTD?;
67
DETAILED DESCRIPTION OF COMMANDS
Peak search (FFT analysis only)
MPK[1~9]
:CALCulate:MARKer[1~9]:MAXimum
Peak Search
Function
Places the selected marker on the highest point of the marker
trace.
Remote Command
MPK[1~9]
:CALCulate:MARKer[1~9]:MAXimum
Example
MPK;
MPK5:
CALC:MARK:MAX;
CALC:MARK5:MAX;
MPKN[1~9]
:CALCulate:MARKer[1~9]:MAXimum:NEXT
Next Peak Search
Function
Places the selected marker on the next highest point of the
marker trace.
Remote Command
MPKN[1~9]
:CALCulate:MARKer[1~9]:MAXimum:NEXT
Example
x
MPKN;
MPKN5:
CALC:MARK:MAX:NEXT;
CALC:MARK5:MAX:NEXT;
68
DETAILED DESCRIPTION OF COMMANDS
Preset
PRST
:SYSTem:PRESet
Preset
Function
Executes preset. All instrument parameters are set to default values.
Remote Command
PRST
:SYSTem:PRESet
Example
PRST;
SYST:PRES;
69
DETAILED DESCRIPTION OF COMMANDS
Printer
HCOPY
:HCOPy[:IMMediate]
Hard Copy
Function
Prints entire screen image.
Remote Command
HCOPY
:HCOPy[:IMMediate]
Example
HCOPY;
HCOP;
70
DETAILED DESCRIPTION OF COMMANDS
Span (FFT analysis only)
SP
[:SENSe]:FREQuency:SPAN
Span
Function
Sets the span.
Remote Command
SP f
SP?
[:SENSe]:FREQuency:SPAN f
[:SENSe]:FREQuency:SPAN?
Response Message
Span (Hz)
Value of f
100 kHz to 30 MHz
Suffix code
None
: Hz (10^0)
HZ
: Hz (10^0)
KHZ
: kHz (10^3)
MHZ
: MHz (10^6)
Initial setting
30 MHz
Example
SP 123456;
SP 30MHZ;
SP ?;
FREQ:SPAN 123456;
FREQ:SPAN 30MHZ;
FREQ:SPAN?;
71
DETAILED DESCRIPTION OF COMMANDS
Sweep
CO
:INITiate:CCDF:CONTinuous
Continuous Sweep
Function
Sets the continuous sweep mode. Repeats active sweep.
Remote Command
CO
:INITiate:CONTinuous
Example
CO;
INIT:CONT;
72
DETAILED DESCRIPTION OF COMMANDS
SI
:INITiate[:IMMediate]
Single Sweep
Function
Sets the single sweep mode. After activating sweep, stops
sweep repeating.
Remote Command
SI
:INITiate[:Immediate]
Example
SI;
INIT;
73
DETAILED DESCRIPTION OF COMMANDS
System
BEEP
Beep
Function
Turns Beep to ON or OFF when pressing key pad..
Remote Command
BEEP n
BEEP sw
BEEP?
Response Message
Value of n
Value of sw
1
: ON
0
: OFF
1
: ON
0
: OFF
ON
: ON
OFF
: OFF
Initial setting
0
Example
BEEP 1;
BEEP ON;
BEEP?;
ECHO
Echo
Function
Turns Echo to ON or OFF when controlled by hyper teminal.
Remote Command
ECHO n
ECHO sw
ECHO?
Response Message
Value of n
Value of sw
1
: ON
0
: OFF
1
: ON
0
: OFF
ON
: ON
OFF
: OFF
Initial setting
1
Example
ECHO 1;
ECHO ON;
ECHO?;
74
DETAILED DESCRIPTION OF COMMANDS
Trace (FFT analysis only)
TRF
:TRACe:MODE
Trace Status
Function
Sets the trace status.
Remote Command
TRF sw
TRF?
:TRACe:MODE sw
:TRACe:MODE?
Response Message
Value of sw
WRIT
: Clear & Wirte
MAXH
: Max Hold
WRITe
: Clear & Wirte
MAXHold
Initial setting
WRIT
Example
TRF WRIT;
: Max Hold
TRF?
TRAC:MODE WRIT;
TRAC:MODE?;
75
DETAILED DESCRIPTION OF COMMANDS
GPIB common commands
*CLS
Clear Status Command
Function
Clears the status byte register.
Remote Command
*CLS
Example
*CLS;
76
DETAILED DESCRIPTION OF COMMANDS
*ESE
Standard Event Status Enable
Function
Sets the standard event status enable register.
Remote Command
*ESE n
*ESE?
Response Message
Register Value
Value of n
0 to 255 : Represents the sum of the bit-weighted values.
Example
*ESE 20:
*ESE?;
77
DETAILED DESCRIPTION OF COMMANDS
*ESR?
Standard Event Status Register Query
Function
Returns the current value in the standard event status register.
Remote Command
*ESR?
Response Message
Register Value
Example
*ESR?;
78
DETAILED DESCRIPTION OF COMMANDS
*IDN?
Identification Query
Function
Returns the model name, etc of the equipment
Remote Command
*IDN?
Response Message
Company, Model, Serial, Version
Example
*IDN?;
79
DETAILED DESCRIPTION OF COMMANDS
*OPC
Operation Complete Command
Function
Sets the standard event register bit 0 to 1 when the requested
action is complete.
Remote Command
*OPC
Example
*OPC;
80
DETAILED DESCRIPTION OF COMMANDS
*OPC?
Operation Complete Query
Function
Sets the output queue to 1 to generate a MAV summary
message when all pending select device operations have
completed.
Remote Command
*OPC?
Response Message
1
Example
*OPC?;
81
DETAILED DESCRIPTION OF COMMANDS
*RST
Rest Command
Function
Resets the device.
Remote Command
*RST
Example
*RST;
82
DETAILED DESCRIPTION OF COMMANDS
*SRE
Service Request Enable Command
Function
Sets the bits in the service request enable register.
Remote Command
*SRE n
*SRE?
Response Message
Register Value
Value of n
0 to 255 : Represents the sum of the bit-weighted values.
Example
*SRE 32;
*SRE?;
83
DETAILED DESCRIPTION OF COMMANDS
*STB?
Returns Status Byte Command
Function
Returns the current values of the status bytes including the MSS
bit.
Remote Command
*STB?
Response Message
Register Value
Bit
Bit Weight
Bit Name
Condition of status byte register
7
128
----
6
64
MSS
5
32
ESB
4
16
MAV
3
8
ESB2
2
4
----
0 = Not used
1
2
----
0 = Not used
0
1
----
0 = Not used
Example
0 = Not used
0 = Service not requested
1 = Service requested
0 = Event status not generated
1 = Event status generated
0 = No data in output queue
1 = Data in output queue
0 = Event status not generated
1 = Event status generated
*STB?;
84
DETAILED DESCRIPTION OF COMMANDS
GPIB common commands — others
ESE2
Event Status Enable (End)
Function
Allows the End Event Status Enable Register to select which
bit in the corresponding Event Register cause a TRUE ESB
summary message bit 3 when set.
Remote Command
ESE2 n
ESE2?
Response Message
Register Value
Value of n
0 to 255 : Represents the sum of the bit-weighted values.
Example
ESE2 1;
ESE2?;
85
DETAILED DESCRIPTION OF COMMANDS
ESR2?
Event Status Register (End) Query
Function
Allows the sum of binary-weighted event bit values of the End
Event Status Register to be read out by converting them to
decimal. After readout, the End Event status Register is reset
to 0.
Remote Command
ESR2?
Response Message
Register Value
Bit
Bit Weight
7
128
Not used
Not used
6
64
Not used
Not used
5
32
Not used
Not used
4
16
Measurement completed
Measurement has completed (Peak search,
OBW, X dB, Noise marker, Freq. Counter,
Limit Pass/Fail..)
3
8
AUTO TUNE completed
AUTO TUNE has completed.
2
4
Averaging completed
Sweeping according to the specified
AVERAGE number has completed.
1
2
Calibration completed
Temp Cal, Pre-Filter Cal, ZNC Cal,. Level Cal..
has completed.
0
1
Sweep completed
A single sweep has completed or is in standby.
Example
Event
ESR2?;
86
Description
DETAILED DESCRIPTION OF COMMANDS
ERR
:SYSTem:ERRor[:NEXT]
Error Code
Function
Returns the error code of the current function. The error code
is cleared.
Remote Command
ERR?
Response Message
Error code
Example
ERR?;
87
Remote commands
< Catalog order >
Index
Description
SA Command
SCPI Command
Suffix
Amplitude
Ref. Level
RL
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel
<amplitude>|?
Amplitude
Attenuation
AT
[:SENSe]:POWer[:RF]:ATTenuation
<amplitude>|?
Amplitude
Scale/Div
SD
:DISPlay:WINDow:TRACe:Y[:SCALe]:PDIVision
<amplitude>|?
Average
Average
AVG
[:SENSe]:AVERage[:STATe]
OFF|ON|0|1|?
Average
Average Count
AVGC
[:SENSe]:AVERage:COUNt
<integer>|?
Bandwidth
Resolution Bandwidth
RB
[:SENSe]:BANDwidth|BWIDth[:RESolution]
<frequency>|?
Bandwidth
Resolution Bandwidth
Auto
RBA
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO
OFF|ON|0|1|?
Display
Graticule
GRAT
:DISPlay:WINDow:TRACe:GRATicule:GRID[:STATe]
OFF|ON|0|1|?
Display
White Mode
WH
:DISPlay:WINDow:WHITe
OFF|ON|0|1|?
File
Read
FREAD
:MMEMory:CATalog
? <`directory_name'>
File
Save
FSAVE
:MMEMory:STORe
<`file_name'>
File
Load
FLOAD
:MMEMory:LOAD
<`file_name'>
File
Delete
FDEL
:MMEMory:DELete
<`file_name'>
Copy
FCOPY
:MMEMory:COPY
<`file_name1'>,<`file_nam
e2'>
Rename
FRENAME
:MMEMory:MOVE
<`file_name1'>,<`file_nam
e2'>
Move
FMOVE
:MMEMory:DATA
<`file_name'>,definite_
length_block|?
<'file_name>
File
File
File
Frequency
Center Frequency
CF
[:SENSe]:FREQuency:CENTer
<frequency>|?
Frequency
Reference
REF
:INPut:REFerence
INTernal|EXTernal|?
Marker
Marker State
MS[1~9]
:CALCulate:MARKer[1~9]:STATe
OFF|ON|0|1|?
Marker
Marker Mode
MM[1~9]
:CALCulate:MARKer[1~9]:MODE
POSition|DELTa|OFF|?
Marker
Marker Freq
MF[1~9]
:CALCulate:MARKer[1~9]:X
<frequency>|?
Marker
Marker Amplitude
MA[1~9]
:CALCulate:MARKer[1~9]:Y
?
Marker
Marker All Off
MAO
:CALCulate:LPLot:MARKer:AOFF
none
Measurement
Meas. Start
MEA
:MEASure:STARt
FFT|PVT|PVTC|CCDF|SP
EC|EVMC|EVMW|EVM|?
Measurement
Power vs Time Output
PVTOUT
:FETCh|MEASure|READ:PVTime
?
Measurement
Pwr vs Time (Crest
Factor) Output
PVTCOUT
:FETCh|MEASure|READ:PVTime:CREST
?
Measurement
Pwr vs Time (CCDF)
Output
CCDFOUT
:FETCh|MEASure|READ:PVTime:CCDF
?
Measurement
Spectral Flatness
FLATOUT
:FETCh|MEASure|READ:FLATness
?
Measurement
EVM (Constellation)
OUTPUT
EVMCOUT
:FETCh|MEASure|READ:EVM:CONSTellation
?
Measurement
EVM (I/Q Wave vs Time)
OUTPUT
EVMWOUT
:FETCh|MEASure|READ:EVM:WVTime
?
Measurement
EVM (EVM vs
Symbol/SubCarrier)
OUTPUT
EVMOUT
:FETCh|MEASure|READ:EVM
?
Meas. Control
Capturing Time
MEAT
:MEASure:TIME
<time>|?
Mode
Mode
MODE
:INSTrument[:SELect]
SA|BASIC|WIMAX|?
Mode Setup
WiMAX Standard
WIMAXSTD
Peak Search
Peak Search
MPK[1~9]
Peak Search
Next Peak Search
Preset
Preset
Printer
Hard Copy
HCOPY
802.16e10MHZ|
802.16e8.75MHZ|
802.16e7MHZ
|802.16e5MHZ|?
:CALCulate:MARKer[1~9]:MAXimum
none
MPKN[1~9]
:CALCulate:MARKer[1~9]:MAXimum:NEXT
none
PRST
:SYSTem:PRESet
none
:HCOPy[:IMMediate]
none
88
REMOTE COMMANDS
Span
Span
SP
[:SENSe]:FREQuency:SPAN
<frequency>|?
Sweep
Single
SI
:INITiate:LPLot[:IMMediate]
none
Sweep
Continuous
CO
:INITiate:LPLot:CONTinuous
OFF|ON|0|1|?
System
Beep
BEEP
System
Echo
ECHO
Trace
Trace Function
TRF
:TRACe:MODE
WRITe|MAXHold|?
Common
*CLS
*CLS
*CLS
none
Common
*ESE
*ESE
*ESE
<integer>|?
Common
*ESR
*ESR
*ESR
?
Common
*IDN
*IDN
*IDN
?
Common
*OPC
*OPC
*OPC
?
Common
*RST
*RST
*RST
none
Common
*SRE
*SRE
*SRE
<integer>|?
Common
*STB
*STB
*STB
?
Others
ESE2
ESE2
Others
ESR2
ESR2
Others
Error Code
ERR
OFF|ON|0|1|?
OFF|ON|0|1|?
<integer>|?
?
:SYSTem:ERRor[:NEXT]
89
?
REMOTE COMMANDS
< SA command order >
Index
Description
SA
Command
SCPI Command
Suffix
Common
*CLS
*CLS
*CLS
none
Common
*ESE
*ESE
*ESE
<integer>|?
Common
*ESR
*ESR
*ESR
?
Common
*IDN
*IDN
*IDN
?
Common
*OPC
*OPC
*OPC
?
Common
*RST
*RST
*RST
none
Common
*SRE
*SRE
*SRE
<integer>|?
Common
*STB
*STB
*STB
?
Amplitude
Attenuation
AT
[:SENSe]:POWer[:RF]:ATTenuation
<amplitude>|?
Average
Average
AVG
[:SENSe]:AVERage[:STATe]
OFF|ON|0|1|?
Average
Average Count
AVGC
[:SENSe]:AVERage:COUNt
<integer>|?
System
Beep
BEEP
Measurement
Pwr vs Time
(CCDF) Output
CCDFOUT
:FETCh|MEASure|READ:PVTime:CCDF
?
Frequency
Center
Frequency
CF
[:SENSe]:FREQuency:CENTer
<frequency>|?
Sweep
Continuous
CO
:INITiate:LPLot:CONTinuous
OFF|ON|0|1|?
System
Echo
ECHO
Others
Error Code
ERR
:SYSTem:ERRor[:NEXT]
?
Others
ESE2
ESE2
Others
ESR2
ESR2
Measurement
EVM
(Constellation)
OUTPUT
EVMCOUT
:FETCh|MEASure|READ:EVM:CONSTellation
?
Measurement
EVM (EVM vs
Symbol/SubCarrier)
OUTPUT
EVMOUT
:FETCh|MEASure|READ:EVM
?
Measurement
EVM (I/Q Wave
vs Time)
OUTPUT
EVMWOUT
:FETCh|MEASure|READ:EVM:WVTime
?
File
Copy
FCOPY
:MMEMory:COPY
<`file_name1'>,<`file_name2'>
File
Delete
FDEL
:MMEMory:DELete
<`file_name'>
Measurement
Spectral
Flatness
FLATOUT
:FETCh|MEASure|READ:FLATness
?
File
Load
FLOAD
:MMEMory:LOAD
<`file_name'>
File
Move
FMOVE
:MMEMory:DATA
<`file_name'>,definite_length_
block|? <'file_name>
File
Read
FREAD
:MMEMory:CATalog
? <`directory_name'>
File
Rename
FRENAME
:MMEMory:MOVE
<`file_name1'>,<`file_name2'>
File
Save
FSAVE
:MMEMory:STORe
<`file_name'>
Display
Graticule
GRAT
:DISPlay:WINDow:TRACe:GRATicule:GRID[:STATe]
OFF|ON|0|1|?
Printer
Hard Copy
HCOPY
:HCOPy[:IMMediate]
none
Marker
Marker
Amplitude
MA[1~9]
:CALCulate:MARKer[1~9]:Y
?
Marker
Marker All Off
MAO
:CALCulate:LPLot:MARKer:AOFF
none
Measurement
Meas. Start
MEA
:MEASure:STARt
FFT|PVT|PVTC|CCDF|SPEC|
EVMC|EVMW|EVM|?
Meas. Control
Capturing Time
MEAT
:MEASure:TIME
<time>|?
Marker
Marker Freq
MF[1~9]
:CALCulate:MARKer[1~9]:X
<frequency>|?
Marker
Marker Mode
MM[1~9]
:CALCulate:MARKer[1~9]:MODE
POSition|DELTa|OFF|?
Mode
Mode
MODE
:INSTrument[:SELect]
SA|BASIC|WIMAX|?
Peak Search
Peak Search
MPK[1~9]
:CALCulate:MARKer[1~9]:MAXimum
none
Peak Search
Next Peak
Search
MPKN[1~9]
:CALCulate:MARKer[1~9]:MAXimum:NEXT
none
Marker
Marker State
MS[1~9]
:CALCulate:MARKer[1~9]:STATe
OFF|ON|0|1|?
Preset
Preset
PRST
:SYSTem:PRESet
none
OFF|ON|0|1|?
OFF|ON|0|1|?
<integer>|?
?
90
REMOTE COMMANDS
Measurement
Pwr vs Time
(Crest Factor)
Output
PVTCOUT
:FETCh|MEASure|READ:PVTime:CREST
?
Measurement
Power vs Time
Output
PVTOUT
:FETCh|MEASure|READ:PVTime
?
Bandwidth
Resolution
Bandwidth
RB
[:SENSe]:BANDwidth|BWIDth[:RESolution]
<frequency>|?
Bandwidth
Resolution
Bandwidth Auto
RBA
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO
OFF|ON|0|1|?
Frequency
Reference
REF
:INPut:REFerence
INTernal|EXTernal|?
Amplitude
Ref. Level
RL
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel
<amplitude>|?
Amplitude
Scale/Div
SD
:DISPlay:WINDow:TRACe:Y[:SCALe]:PDIVision
<amplitude>|?
Sweep
Single
SI
:INITiate:LPLot[:IMMediate]
none
Trace
Trace Function
TRF
:TRACe:MODE
WRITe|MAXHold|?
Display
White Mode
WH
:DISPlay:WINDow:WHITe
OFF|ON|0|1|?
Mode Setup
WiMAX
Standard
WIMAXSTD
802.16e10MHZ| 802.16e8.75MHZ|
802.16e7MHZ |802.16e5MHZ|?
91
REMOTE COMMANDS
< SCPI command order >
Index
Description
SA
Command
SCPI Command
Suffix
Common
*CLS
*CLS
*CLS
none
Common
*ESE
*ESE
*ESE
<integer>|?
Common
*ESR
*ESR
*ESR
?
Common
*IDN
*IDN
*IDN
?
Common
*OPC
*OPC
*OPC
?
Common
*RST
*RST
*RST
none
Common
*SRE
*SRE
*SRE
<integer>|?
Common
*STB
*STB
*STB
?
Marker
Marker All Off
MAO
:CALCulate:LPLot:MARKer:AOFF
none
Peak Search
Peak Search
MPK[1~9]
:CALCulate:MARKer[1~9]:MAXimum
none
Peak Search
Next Peak
Search
MPKN[1~9]
:CALCulate:MARKer[1~9]:MAXimum:NEXT
none
Marker
Marker Mode
MM[1~9]
:CALCulate:MARKer[1~9]:MODE
POSition|DELTa|OFF|?
Marker
Marker State
MS[1~9]
:CALCulate:MARKer[1~9]:STATe
OFF|ON|0|1|?
Marker
Marker Freq
MF[1~9]
:CALCulate:MARKer[1~9]:X
<frequency>|?
Marker
Marker
Amplitude
MA[1~9]
:CALCulate:MARKer[1~9]:Y
?
Display
Graticule
GRAT
:DISPlay:WINDow:TRACe:GRATicule:GRID[:STATe]
OFF|ON|0|1|?
Amplitude
Scale/Div
SD
:DISPlay:WINDow:TRACe:Y[:SCALe]:PDIVision
<amplitude>|?
Amplitude
Ref. Level
RL
:DISPlay:WINDow:TRACe:Y[:SCALe]:RLEVel
<amplitude>|?
Display
White Mode
WH
:DISPlay:WINDow:WHITe
OFF|ON|0|1|?
Measurement
EVM (EVM vs
Symbol/SubCa
rrier) OUTPUT
EVMOUT
:FETCh|MEASure|READ:EVM
?
Measurement
EVM
(Constellation)
OUTPUT
EVMCOUT
:FETCh|MEASure|READ:EVM:CONSTellation
?
Measurement
EVM (I/Q
Wave vs Time)
OUTPUT
EVMWOUT
:FETCh|MEASure|READ:EVM:WVTime
?
Measurement
Spectral
Flatness
FLATOUT
:FETCh|MEASure|READ:FLATness
?
Measurement
Power vs Time
Output
PVTOUT
:FETCh|MEASure|READ:PVTime
?
Measurement
Pwr vs Time
(CCDF) Output
CCDFOUT
:FETCh|MEASure|READ:PVTime:CCDF
?
Measurement
Pwr vs Time
(Crest Factor)
Output
PVTCOUT
:FETCh|MEASure|READ:PVTime:CREST
?
Printer
Hard Copy
HCOPY
:HCOPy[:IMMediate]
none
Sweep
Continuous
CO
:INITiate:LPLot:CONTinuous
OFF|ON|0|1|?
Sweep
Single
SI
:INITiate:LPLot[:IMMediate]
none
Frequency
Reference
REF
:INPut:REFerence
INTernal|EXTernal|?
Mode
Mode
MODE
:INSTrument[:SELect]
SA|BASIC|WIMAX|?
Measurement
Meas. Start
MEA
:MEASure:STARt
FFT|PVT|FVT|POLAR|WVT|
BPSK|QPSK|OQPSK|8~64PSK
|4~256QAM|CCDF|?
Meas. Control
Capturing Time
MEAT
:MEASure:TIME
<time>|?
File
Read
FREAD
:MMEMory:CATalog
? <`directory_name'>
File
Copy
FCOPY
:MMEMory:COPY
<`file_name1'>,<`file_name2'>
File
Move
FMOVE
:MMEMory:DATA
<`file_name'>,definite_length_
block|? <'file_name>
File
Delete
FDEL
:MMEMory:DELete
<`file_name'>
File
Load
FLOAD
:MMEMory:LOAD
<`file_name'>
File
Rename
FRENAME
:MMEMory:MOVE
<`file_name1'>,<`file_name2'>
File
Save
FSAVE
:MMEMory:STORe
<`file_name'>
Others
Error Code
ERR
:SYSTem:ERRor[:NEXT]
?
Preset
Preset
PRST
:SYSTem:PRESet
none
92
REMOTE COMMANDS
Trace
Trace Function
TRF
:TRACe:MODE
WRITe|MAXHold|?
Average
Average Count
AVGC
[:SENSe]:AVERage:COUNt
<integer>|?
Average
Average
AVG
[:SENSe]:AVERage[:STATe]
OFF|ON|0|1|?
Bandwidth
Resolution
Bandwidth
RB
[:SENSe]:BANDwidth|BWIDth[:RESolution]
<frequency>|?
Bandwidth
Resolution
Bandwidth
Auto
RBA
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO
OFF|ON|0|1|?
Frequency
Center
Frequency
CF
[:SENSe]:FREQuency:CENTer
<frequency>|?
Frequency
Sampling Rate
SR
[:SENSe]:FREQuency:SAMPling:RATE
<frequency>|?
Span
Span
SP
[:SENSe]:FREQuency:SPAN
<frequency>|?
Amplitude
Attenuation
AT
[:SENSe]:POWer[:RF]:ATTenuation
<amplitude>|?
93
Error codes
Code
Description
990
Not supported in current mode
991
Not installed (option)
992
System is busy
993
Execution error (EXE)
994
Query error (QYE)
995
Suffix error
996
Input data size over error
997
Undefined command
998
Unnecessary suffix insertion
999
Undefined suffix
94
AEROFLEX INTERNATIONAL LIMITED
SOFTWARE LICENSE AND WARRANTY
This document is an Agreement between the user of this Licensed Software, the Licensee, and Aeroflex International Limited
(‘Aeroflex’), the Licensor. By installing or commencing to use the Licensed Software you accept the terms of this Agreement. If you
do not agree to the terms of this Agreement do not use the Licensed Software.
1. DEFINITIONS
The following expressions will have the meanings set out below for the purposes of this Agreement:
Add-In Application Software
Licensed Software that may be loaded separately from time to time into the Designated
Equipment to improve or modify its functionality
Computer Application Software
Licensed Software supplied to run on a standard PC or workstation
Designated Equipment
means either:
the single piece of equipment or system supplied by Aeroflex upon which the Licensed
Software is installed; or
a computer that is connected to a single piece of equipment or system supplied by Aeroflex
upon which computer the Licensed Software is installed
Downloaded Software
any software downloaded from an Aeroflex web site
Embedded Software
Licensed Software that forms part of the Designated Equipment supplied by Aeroflex and
without which the Equipment cannot function
License Fee
means either the fee paid or other consideration given to Aeroflex for the use of the
Licensed Software on the Designated Equipment
Licensed Software
all and any programs, listings, flow charts and instructions in whole or in part including
Add-in, Computer Application, Downloaded and Embedded Software supplied to work with
Designated Equipment
PXI Software
Licensed Software specific to Aeroflex’s 3000 Series PXI product range
2. LICENSE FEE
The Licensee shall pay the License Fee to Aeroflex in accordance with the terms of the contract between the Licensee and
Aeroflex.
3. TERM
This Agreement shall be effective from the date of receipt or download (where applicable) of the Licensed Software by the Licensee
and shall continue in force until terminated under the provisions of Clause 8.
4. LICENCE
4.1 The following rights and restrictions in this Article 4 apply to all Licensed Software unless otherwise expressly stated in other
Articles of this Agreement.
4.2 Unless and until terminated, this License confers upon the Licensee the non-transferable and non-exclusive right to use the
Licensed Software on the Designated Equipment.
4.3 The Licensee may not use the Licensed Software on other than the Designated Equipment, unless written permission is first
obtained from Aeroflex and until the appropriate additional License Fee has been paid to Aeroflex.
4.4 The Licensee may not amend or alter the Licensed Software and shall have no right or license other than that stipulated
herein.
4.5 Except as specifically permitted elsewhere in this Agreement the Licensee may make not more than two copies of the
Licensed Software (but not the Authoring and Language Manuals) in machine-readable form for operational security and shall
ensure that all such copies include Aeroflex's copyright notice, together with any features which disclose the name of the
Licensed Software and the Licensee. Furthermore, the Licensee shall not permit the Licensed Software or any part to be
disclosed in any form to any third party and shall maintain the Licensed Software in secure premises to prevent any
unauthorized disclosure. The Licensee shall notify Aeroflex immediately if the Licensee has knowledge that any unlicensed
party possesses the Licensed Software. The Licensee's obligation to maintain confidentiality shall cease when the Licensed
Software and all copies have been destroyed or returned. The copyright in the Licensed Software shall remain with Aeroflex.
The Licensee will permit Aeroflex at all reasonable times to audit the use of the Licensed Software.
4.6 The Licensee will not disassemble or reverse engineer the Licensed Software, nor sub-license, lease, rent or part with
possession or otherwise transfer the whole or any part of the Licensed Software.
1
48000/025 Issue 3
AEROFLEX INTERNATIONAL LIMITED SOFTWARE LICENSE AND WARRANTY
5 ADDITIONAL LICENSE RIGHTS SPECIFIC TO PXI SOFTWARE
5.1 Definitions for PXI Software
The following expressions will have the meanings set out below for the purposes of the supplementary rights granted in this
Article.
PXI Drivers
All 3000 Series PXI module device drivers including embedded firmware that are
installed at runtime
PXI Executable Applications
All executable applications supplied with each 3000 Series PXI module including:PXI Studio
Soft Front Panels (manual operation graphical user interfaces)
Utilities including: RF Investigator, PXI Version Information and Self Test
PXI Spectrum Analysis Library
The spectrum analysis measurement suite library .dll software supplied with each 3000
Series PXI module
PXI Optional Application Library
Individual measurement suite available from a range of optional .dll application
libraries
5.2 PXI Drivers, PXI Executable Applications and PXI Spectrum Analysis Library License Rights
Subject to the License granted in Article 4 hereof notwithstanding the limitations on number of copies in Clause 4.5 hereof, the
Licensee is entitled to make and distribute as many copies of the PXI Drivers and PXI Executable Applications as necessary
for use with 3000 Series PXI modules acquired by the Licensee from Aeroflex or its authorized distributor or reseller provided
that the Licensee may not sell or charge a fee for the PXI Drivers and PXI Executable Applications.
5.3 PXI Optional Application Library License Rights
Subject to the License granted in Article 4 hereof notwithstanding the limitations on number of copies in Clause 4.5 hereof, the
Licensee is entitled to distribute as many copies of any PXI Optional Application Library as necessary for use with 3000 Series
PXI modules acquired by the Licensee from Aeroflex or its authorized distributor or reseller provided that:
5.3.1 copies of the applicable PXI Optional Application Library are used solely with 3000 Series PXI modules which the
customer has purchased with the corresponding option or part number for the applicable PXI Optional Application
Library; and
5.3.2 the Licensee may not sell or charge a fee for the PXI Optional Application Library.
6 WARRANTY
6.1 Aeroflex certifies that the Licensed Software supplied by Aeroflex will at the time of delivery function substantially in
accordance with the applicable Software Product Descriptions, Data Sheets or Product Specifications published by Aeroflex.
6.2 The warranty period (unless an extended warranty for Embedded Software has been purchased) from date of delivery in
respect of each type of Licensed Software is:
PXI Drivers
24 months
Embedded Software
12 months
Add-In Application Software
90 days
Computer Application Software
90 days
Downloaded Software
No warranty
6.3 If during the appropriate Warranty Period the Licensed Software does not conform substantially to the Software Product
Descriptions, Data Sheets or Product Specifications Aeroflex will provide:
6.3.1 In the case of Embedded Software and at Aeroflex’s discretion either a fix for the problem or an effective and efficient
work-around.
6.3.2 In the case of Add-In Application Software and Computer Application Software and at Aeroflex’s discretion replacement
of the software or a fix for the problem or an effective and efficient work-around.
6.4 Aeroflex does not warrant that the operation of any Licensed Software will be uninterrupted or error free.
6.5 The above Warranty does not apply to:
6.5.1 Defects resulting from software not supplied by Aeroflex, from unauthorized modification or misuse or from operation
outside of the specification.
6.5.2 Third party produced proprietary software which Aeroflex may deliver with its products, in such case the third party
software license agreement including its warranty terms shall apply.
6.6 The remedies offered above are sole and exclusive remedies and to the extent permitted by applicable law are in lieu of any
implied conditions, guarantees or warranties whatsoever and whether statutory or otherwise as to the Licensed Software all of
which are hereby expressly excluded.
7. INDEMNITY
7.1 Aeroflex shall defend, at its expense, any action brought against the Licensee alleging that the Licensed Software infringes any
patent, registered design, trademark or copyright, and shall pay all Licensor's costs and damages finally awarded up to an
aggregate equivalent to the License Fee provided the Licensee shall not have done or permitted to be done anything which
may have been or become any such infringement and shall have exercised reasonable care in protecting the same failing
which the Licensee shall indemnify Aeroflex against all claims costs and damages incurred and that Aeroflex is given prompt
written notice of such claim and given information, reasonable assistance and sole authority to defend or settle such claim on
behalf of the Licensee. In the defense or settlement of any such claim, Aeroflex may obtain for the Licensee the right to
continue using the Licensed Software or replace it or modify it so that it becomes non-infringing.
7.2 Aeroflex shall not be liable if the alleged infringement:
2
AEROFLEX INTERNATIONAL LIMITED SOFTWARE LICENSE AND WARRANTY
7.2.1 is based upon the use of the Licensed Software in combination with other software not furnished by Aeroflex, or
7.2.2 is based upon the use of the Licensed Software alone or in combination with other software in equipment not
functionally identical to the Designated Equipment, or
7.2.3 arises as a result of Aeroflex having followed a properly authorized design or instruction of the Licensee, or
7.2.4 arises out of the use of the Licensed Software in a country other than the one disclosed to Aeroflex as the intended
country of use of the Licensed Software at the commencement of this Agreement.
7.3 Aeroflex shall not be liable to the Licensee for any loss of use or for loss of profits or of contracts arising directly or indirectly
out of any such infringement of patent, registered design, trademark or copyright. Notwithstanding anything in this Agreement
to the contrary, the total liability of Aeroflex and its employees, in contract, tort, or otherwise (including negligence, warranty,
indemnity, and strict liability) howsoever arising out of this License shall be limited to the total amount of the License Fee and
total support fees actually paid to Aeroflex by the Licensee.
8. TERMINATION
8.1 Notwithstanding anything herein to the contrary, this License shall forthwith determine if the Licensee:
8.1.1 As an individual has a Receiving Order made against him or is adjudicated bankrupt or compounds with creditors or as a
corporate body, compounds with creditors or has a winding-up order made against it or
8.1.2 Parts with possession of the Designated Equipment.
8.2 This License may be terminated by notice in writing to the Licensee if the Licensee shall be in breach of any of its obligations
hereunder and continue in such breach for a period of 21 days after notice thereof has been served on the Licensee.
8.3 On termination of this Agreement for any reason, Aeroflex may require the Licensee to return to Aeroflex all copies of the
Licensed Software in the custody of the Licensee and the Licensee shall, at its own cost and expense, comply with such
requirement within 14 days and shall, at the same time, certify to Aeroflex in writing that all copies of the Licensed Software in
whatever form have been obliterated from the Designated Equipment.
9. THIRD PARTY LICENCES
9.1 The Licensed Software or part thereof may be the proprietary property of third party licensors. In such an event such third party
licensors (as may be referenced on the software media, or any on screen message on start up of the software or on the order
acknowledgement) and/or Aeroflex may directly enforce the terms of this Agreement and may terminate the Agreement if the
Licensee is in breach of the conditions contained herein.
9.2 If any third party software supplied with the Licensed Software is supplied with, or contains or displays the third party’s own
license terms then the Licensee shall abide by such third party license terms (for the purpose of this Article the term “third
party” shall include other companies within the Aeroflex group of companies).
10. EXPORT REGULATIONS
The Licensee undertakes that where necessary the Licensee will conform with all relevant export regulations imposed by the
Governments of the United Kingdom and/or the United State of America.
11. U.S. GOVERNMENT RESTRICTED RIGHTS
The Licensed Software and documentation are provided with RESTRICTED RIGHTS. Use, duplication, or disclosure by the
Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software
clause at DFARS 252.227-7013 or subparagraphs (c)(1) and (2) of the Commercial Computer Software-Restricted Rights at 48
CFR 52.227-19, as applicable.
12. NOTICES
Any notice to be given by the Licensee to Aeroflex shall be addressed to:
Aeroflex International Limited, Longacres House, Six Hills Way, Stevenage, SG1 2AN, UK.
13. LAW AND JURISDICTION
This Agreement shall be governed by the laws of England and shall be subject to the exclusive jurisdiction of the English courts.
This agreement constitutes the whole agreement between the parties and may be changed only by a written agreement signed by
both parties.
© AEROFLEX INTERNATIONAL LIMITED 2008
3
CHINA Beijing
Tel: [+86] (10) 6539 1166
Fax: [+86] (10) 6539 1778
CHINA Shanghai
Tel: [+86] (21) 5109 5128
Fax: [+86] (21) 5150 6112
FINLAND
Tel: [+358] (9) 2709 5541
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FRANCE
Tel: [+33] 1 60 79 96 00
Fax: [+33] 1 60 77 69 22
Tel: [+49] 8131 2926-0
Fax: [+49] 8131 2926-130
Tel: [+852] 2832 7988
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Tel: [+91] 80 [4] 115 4501
Fax: [+91] 80 [4] 115 4502
Tel: [+81] 3 3500 5591
Fax: [+81] 3 3500 5592
Tel: [+45] 9614 0045
Fax: [+45] 9614 0047
Tel: [+34] (91) 640 11 34
Fax: [+34] (91) 640 06 40
UK Cambridge
Tel: [+44] (0) 1763 262277
Fax: [+44] (0) 1763 285353
UK Stevenage
Tel: [+44] (0) 1438 742200
Fax: [+44] (0) 1438 727601
GERMANY
HONG KONG
INDIA
JAPAN
SCANDINAVIA
SPAIN
Freephone: 0800 282388
USA
Tel: [+1] (316) 522 4981
Fax: [+1] (316) 522 1360
Toll Free: 800 835 2352
www.aeroflex.com
info-test@aeroflex.com
April 2006
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