Gebruiksaanwijzing /service van het product MU368060A van de fabrikant Anritsu
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Document No.: M-W1955AE-4.0 ANRITSU CORPORA TION MU368060A A WGN Unit Operation Manual Fourth Edition • Read this manual before using the equipment. • T o ensure that the equipment is used s afely , read the "For Safety" in the MG368 1A Digit al Modula- tion Signal Generator Operation Manual first.
ii MU368060A AW G N U n i t Operation Manual 1 August 2001 (First Edition) 1 December 2003 (Fourth Edition) Copyright © 2001-200 3, ANRITS U CORPORA TION. All rights re served. No part of this manual may be reproduced with out the prior written permission of the publisher .
iii Equipment Certificate Anritsu Corporation certifies that this equipment was tested before shipment using calibrated measuring instruments with direc t traceability to public testing organ izations.
iv Notes On Export Management This product and it s manuals may requi re an Export Lice nse/Approval by the Government of the product's country of origi n for re-export from you r country . Before re-exporting the product or ma nuals, please cont act us to confirm whether they are export -controlled items or n ot.
v CE Conformity marking Anritsu affixes the CE Conformity ma rking on th e following product (s ) in accordance with the Council Dir ective 93/68/EEC to indicate that they conform with the EM C and LVD directive of the European Uni on (EU). CE marking 1.
vi C-tick Conformity marking Anritsu affixes the C-tick marking on th e following product (s) in accor- dance with the regulation to indic ate that they conform with the EMC framework of Austral ia/New Zealan d. C-tick marking 1. Product Model Plug-in Units: MU368060A A WGN Unit 2.
I About This Manual This operation m anual offers an overview, sampl e measurement an d re- mote control of the MU368 060A AWGN Unit. The MU368060A AWGN Un it is mounted to the MG3681A Digit al Modu- latio n Signa l Gene rator. represents a panel k ey.
II Table of Contents About This Manual ........................................ I Section 1 Overview .................................... 1-1 1.1 Product Ou tline ............................................................. 1-2 1.2 Product Conf iguratio n .
III Section 7 Remote Controls ....................... 7-1 7.1 Device Message List by Function ................................. 7-2 7.2 Alphabetical Device Message List ................................ 7-5 7.3 Device Message List for each AWGN Internal Adder Functions when Sele cting W-CDMA .
IV..
Section 1 Overview 1-1 This section describes the product outline and manual configuration for the MU368060A A WGN Unit. 1.1 Product Ou tline........................................................... 1-2 1.2 Product Conf iguratio n ..................
Section 1 Overview 1-2 1.1 Product Outline The MU368060A is an A WGN (Additive White Gaussian Noise) Unit mounted on the MG3 681A Digital Modulat ion Signal Generat or (hereafter , main frame). Mounting the MU368 060A on the main frame enables n oise signals to be generated for rece ption sensitivity t est of CDMA 2000 modulati on radio equipment.
1.2 Product Configuration 1-3 1.2 Product Configuration The standard configuration of the MU3680 60A is shown below . When unpacking, check that the listed products are provided. If a missing or damaged component is found, please co ntact Anritsu or its distributors.
Section 1 Overview 1-4..
Section 2 Storage and T ransportatio n 2-1 This section describes precaut ions on storage and transp ortation of MU368060A. 2.1 Precautions for Long -term Storage ............................ 2-2 2.2 Repacking and Tr ansportation .....................
Section 2 Storage and Transportation 2-2 2.1 Precautions for Long-term Storage A void storing the MU368060A i n places where: • It may be exposed to direct sunlight • It is dusty • It is humid a.
2.2 Repacking and Transportation 2-3 2.2 R epacking and Transportation Precautions on transportation of MU368060A ar e shown below . Repa cking Use the original p acking materia l (box), if ava ilable. If not available, follow the procedures shown below to repack th e MU368060A.
Section 2 Storage and Transportation 2-4..
Section 3 Operation Overview 3-1 This section explains the basic screens wh en MU368060A is mounted on the main frame. 3.1 Setting the Pa rameters .............................................. 3-2 3.2 Power Accuracy for the Calculated Bandwidth .....
Section 3 Operation Overview 3-2 3.1 Setting the Parameters When Digital Mod is pressed, the key lamp lights and the Mai n screen ap- pears. This screen is for basic pa rameter settings on digital mo dulation . Details on the Main scre en settings are described be low .
3.1 Setting the Parameters 3-3 [5] Calculated Level Calculates the calc ulated lev el internally ba sed on the inputt ed cal- culated bandwidt h. Displays the power ratio of the band specified in [4] to the total p ower for the RF output of the signa l generator .
Section 3 Operation Overview 3-4 • Calculating th e power for the calculat ed bandwidth The noise generator can be explained by the following thr ee parameters. Noise Bandwid th: Sets the band for the noise to be gener ated. Bandwidth set here is for the flat part of the noise as shown in the figure below .
3.1 Setting the Parameters 3-5 Example: Suppose that the following parameters ar e set for this unit: Output Level : − 10 dBm Digital Mod : On System : Noise1 Noise Bandwidth : 7.68 MHz Calculated Bandwidth : 3.84 MHz From Formula (1), Power within the calculated band width = RF output level + Calculat ed level = − 10 dBm + ( − 3.
Section 3 Operation Overview 3-6. 3.2 Power Accuracy for the Calculated Bandwidth From Formula (1) in Section 3.1, accu racy for the power within the calcu- lated bandwidth vari es depending on the accurac y for the RF output lev el and the power calculati on level.
Section 4 Sample Measurement 4-1 This section explains sample measurement when MU 368060A is mounted on the main fram e. 4.1 Evaluation Measurement for the Receiver .
Section 4 Sample Measurement 4-2. 4.1 Evaluation Measurement for the Receiver The evaluation m easurement proc edure for the W -CDMA receiver is de- scribed below . Setup Measurement procedure [1] Set the frequency for the wanted s ignal source to the testing fre- quency .
Section 5 Sample Calibration 5-1 This section describes the cal ibration procedure for th e output level when using the MU368060A A WGN Unit. This example uses a W-CDMA sys- tem. 5.1 Calibration of t he Output Level ...................................
Section 5 Sample Calibrat ion 5-2 5.1 C alibration of the Output Level 5.1.1 Adjusting the output level for the signal generator Calibration of the output level at th e RF connector terminal f or the signal generator is explained here. A sample power setting with a 7.
5.1 Calibration of the Output Level 5-3 <Points> In this calibration method, the output level accurac y of this unit can be ig- nored because the output level is directly measured b y the power meter . Conversely , by changing the output level of this unit after calibration, its accuracy affects the level accuracy .
Section 5 Sample Calibrat ion 5-4 (4) Set the output lev el for this unit so that the indicati on value of the power meter becomes the total power found in Step (2). This com- pletes calibration to the –73 dBm/3.84 MHz noise level at the input connector terminal of the rec eiver .
5.1 Calibration of the Output Level 5-5 5.1.4 Calibration using the offset setti ng function of the RF output level Using the offs et setting funct ion of the RF outp ut level of th e MG3681A with “(Absolut e)” display , the noise level can be easily ca librated, as de- scribed below .
Section 5 Sample Calibrat ion 5-6..
Section 6 A WGN Internal Adder Function 6-1 This sectio n explain s the A WGN i nternal adde r function a vailable when MU368060A is mounted with both MU3 68040A and MX368041A/B. 6.1 Produc t Ou tline...................................................
Section 6 AWGN Internal Adder Function 6-2 6.1 Product Outline The MU368060A is capable of outputting I/Q and RF signals added with W -CDMA uplink modulation wave and n oise when mounted w ith both the MU368040A and the MX368041A/B.
6.2 Operation When Selecting W-CDMA 6-3 6.2 Operation When Selecting W-CDMA When W -CDMA is selected for System wh ile setting Up Link for Simula- tion Link, setting items for the A WGN internal add er function appear in the Digital modulat ion setting screen for W - CDMA modulatio n.
Section 6 AWGN Internal Adder Function 6-4 [6] Output Level Displays [(nois e power for all b ands)+(total pow er for multiplex chan- nels of W -CDMA modulation wave)] [7] A WGN Sets the A WGN internal adder function On/Off. When set to Off, the MX368041A/B standards app ly to all items.
6.2 Operation When Selecting W-CDMA 6-5 6.2.2 Scrambling Code & Others Edit screens [1] Noise Bandwidth Sets the noise bandwidth. Setting item: Chip Rate x 1.
Section 6 AWGN Internal Adder Function 6-6 6.3 Function Details Image diagram for the A WGN internal adder function is shown below: Noise is added to th e same carrier as the W -CDMA modulation wave and outputted as I/Q and RF signals.
6.3 Function Details 6-7 [3] W anted Is the ratio between Output Level and W -CDMA modulation wave power . This value is correct without a warning message "Power Un- der 0 dB" displayed. W -CDMA modulation wave p ower = Output Level + W anted [4] Noise Is the ratio between Output Leve l and noise power within 3.
Section 6 AWGN Internal Adder Function 6-8 6.4 Operation When Selecting 1xEVDO When 1xEVDO is selected for System, ad ditionally , Over sampling is 8 and 1xEVDO modu lation wave of single carrier is set to Pattern, setting it ems of A WGN internal adder function app ear in the Digital modulation set ting screen for 1xEVDO modu lation.
6.4 Operation When Selecting 1xEVDO 6-9 [3] W anted Displays power of 1xEVDO modulation wave. [4] Displays noise power within 1.23 MHz ban d. [5] Noise Bandwidth Sets noise bandwidth and selec ted in multiples of Calc ulated Band- width. When T one is selected, the ton e signal of the same power as selecte d for x4 is added, but not for A WGN.
Section 6 AWGN Internal Adder Function 6-10 6.5 Function Details When Selecting 1xEVDO Image diagram for the A WGN internal adder function is shown below: 1.23 MHz x4/x 3/x2 1.23 MHz Carri er freq uency 1xEV DO Modulatio n Wave Nois e (A W GN) Noise is added to the same carr ier as the 1xEVDO modulation wave and outputted as I/Q and RF signal.
6.5 Function Details When Selecting 1xEVDO 6-1 1 [3] Noise Displays noise power within 1.23 MH z ban d. This is not power for all noise bands . The difference b etween this val ue and the display value for W anted is the same as the setting vale for C/N.
Section 6 AWGN Internal Adder Function 6-12..
Section 7 Remote Controls 7-1 This section provides the function list for the GPIB device messages a nd de- scribes the messages in alphabetical order , when the MU368060A A WGN Unit is mounted on the main frame.
Section 7 Remote Controls 7-2 7.1 D evice Message List by Function Command messages and query me ssages The header of th e command message is a reserved word repr esented by uppercase alphanum eric characters. The header field of th e query mes- sage ends with "?".
7.1 Device Message List by Functi on 7-3 Response me ssage A response message is returned to the externa l controller when a query message is received, which is represente d in the form "r esponse header field + response data section".
Section 7 Remote Controls 7-4 Device message li st <Common> Item Device message Controlled item Command message Query message Response message I/Q Source Internal MODE INT IQSRC INT MODE? IQSRC?.
7.2 Alphabetical Device Message List 7-5 7.2 A lphabetical Device Message List <Example> FREQ Frequency Function Sets the frequency . Command message FREQ f V alue of f –2.99975 to 3 GHZ : –2.99975 to 3 GHz –2999.75 to 3000 MHZ : –2999.75 to 3000 MHz –2999750 to 3000000 KH Z : –2999750 to 300000 0 kHz –2999750000.
Ｃ 7-6 CALCBW Calculation Bandwidth Function Sets the calculated bandwidth. The possible sett ing range is 10 to 80% of th e noise bandwi dth. Command message CALCBW f Query message CALCBW? Response me ssage CAL CBW f V alue of f W ithin the ran ge of 10 to 80% of th e noise bandwi dth.
C 7-7 CALCLVL Calculation Bandwidth Level Function Reads the bandwidth calculation le vel. A vailable for query command only . Query message CALCL VL? Response me ssage CAL CL VL l 1.
I 7-8 IQSRC I/Q Source Function Selects between internal generation or external input for the I/Q signal. Command message IQSRC a V alue of a INT : Internal (Internal I/Q signal) EXT : External (Ext ernal I/Q signal) OFF : I/Q modulation stops (Only Pules modulation is available.
Ｍ 7-9 MODE I/Q Source Function Selects between internal generation or external input for the I/Q signal. Command message MODE a V alue of a INT : Internal (Internal I/Q signal) EXT : External (Ext ernal I/Q signal) OFF : I/Q modulation stops (Only pulse modulation is available.
Ｎ 7-10 NOISEBW Noise Bandwidth Function Sets the noise bandwidth. Command message NOISEBW f V alue of f 1.5 to 16 M Hz Query message NOISEBW? Response message NOISEBW f Restrict ion When Ext is set for I/Q signal sou rce, screen display and remote con- trol are disabled.
Ｓ 7-1 1 SYS Noise System Function Sets the communication system. Command message SYS a V alue of a NOISE1 : selects noise ∗∗∗ : other system such as TDMA unit Query message SYS? Response messa.
Section 7 Remote Controls 7-12 7.3 D evice Message List for AWGN Internal Adder Functions When Selecting W-CDMA This section provid es the functional list of GPIB de vice messages when using the A WGN interna l adder function with W -CDMA selected as ex- plained in Section 6.
7.4 Alphabetical Device Message List for the AWGN Internal Adder Function 7-13 7.4 A lphabetical Device Message List for AWGN Internal Adder Functions When Selecting W-CDMA This section details the alp habetical list of GP IB device messag es when using the A WGN interna l adder function with W -CDMA selected as ex- plained in Section 6.
Ｎ 7-14 NOISEADD AWGN Addition Function Sets internal addit ion of noise and W -CDMA modulation wave On/Off. Command message N OISEADD a V alue of a ON : Sets the internal adder function On.
Ｐ 7-15 PWRCNR C/N Function Sets the ratio of modulation wave power to noise within bandwid th power (C/N). Command message PWRCNR l Value of l –30.0 to –8.0 dB Query message PWRCNR? Response mess age PWRCNR l Application example PWRCNR –8.0 dB PWRNS Noise Signal Power Function Queries the noise p ower ratio within the ban dwidth .
P 7-16 PWRWS Wanted Signal Power Function Queries the mod ulation wave pow er ratio. Query message PWRWS? Response me ssage PWRWS l Value of l –143.0 to 17.
7.5 Device Message List for AWGN Internal Adder Functi ons When Selecting 1xEV DO 7-17 7.5 D evice Message List for AWGN Internal Adder Functions When Selecting 1xEVDO This section provid es the function list of the GPIB d evice message when using A WGN internal function with 1xEVDO select ed as explained in Sec- tion 6.
Section 7 Remote Controls 7-18 7.6 A lphabetical Device Message List for AWGN Internal Adder Function When Selecting 1xEVDO This section details the alphabet ical device message for GPIB dev ice mes- sage when using A WGN internal adder function with 1x EVDO selected as explained in Section 6.
N 7-19 NOISE AWGN Addition Function Sets A W GN and 1xEVDO modulatio n wave internal adder On/Off. Command message NOISE a V alue of a ON : Sets the internal adder function On.
N 7-20 NOISECN C/N Function Sets the ratio between m odulation wave pow er and noise power within band (C/N). Command message NOISECN l V alue of 1 –30.0 to +30.0 dB Query message NOISECN? Response message NOISECN l Application example NOISECN –8.
W 7-21 WNTSGPWR Wanted Signal Power Function Queries the mod ulation power Query message WNTSGPWR? Response mess age WNTSGPWR l V alue of 1 –143.0 to +17.
Section 7 Remote Controls 7-22..
Section 8 Performance T e st 8-1 This section explains the required measuring instruments and procedures for setup, calibration and per formance test to confirm that the MU368060A satisfies the standards. 8.1 Performance Test .........................
Section 8 Performance Test 8-2 8.1 Performance Test The performanc e test is required to check that the MU368060A satisfies the standards. Conduct the performanc e test when required such as on acceptance in- spection, periodic insp ection or after repa ir .
8.2 Devices used in Performance Test 8-3 8.2 D evices used in Performance Test The devi ces used in the perfo rmance test of the MU 368060A are sho wn in the table below: Performance Test Item Recomme.
Section 8 Performance Test 8-4 8.3 R F Output Level Accuracy (1) T est criteria ALC On, output: –3 dBm, level d ifference from resul ts during CW and during modulation at noise band wi dth of 7.68 MHz: ±3 dB (excluding when noise intern al adder function is On.
8.4 In-band Power Calculation Accuracy 8-5 8.4 In-band Power Calculation Accuracy (1) T est criteria Power ratio accuracy within the ca lculated ban dwidth to tot al power (when RF output level is –3 dB m) ± 0.6 dB (1920 to 2170 MHz, noise band w idth set value: 4 to 8 MHz) ± 2.
Section 8 Performance Test 8-6. Reference Level : 10 dBm Amplitude Scale : 10 dBm [7] Perform waveform a veraging with th e spectrum analyzer . [8] Measure the power for calculat ed bandw idth by using the noise measurement funct ion of the spectrum ana lyzer .
Appendix App-1 Appendix A Specif ications ................................................. A-1 Appendix B Initial Value Li st ........................
Appendix App-2..
Appendix A Specifications A-1 Item Specifications Application Nois e (AWGN) signal source for recept ion sensitivity test of CDMA modul ation radio equipment. Carrier frequenc y range 1920 to 2170 MHz Probability distribution Gauss distribution Bandwidth 1.
Appendix A Specificat ions A-2..
Appendix B Initial V alue List B-1 B Initial Value List When Noise is sel ected for Sy stem Setting Initial value Noise 7.68 MHz Calculated 3.84 MHz When the A WGN internal adder fu nction is On with W-CDMA selected Setting Initial value AWGN Off C/N –20.
Appendix B Initial Value List B-2..
Appendix C Performance T est Result Sheet C-1 C Performance Test Result Sheet T est site : Report No. Date Person in charge Model MG3681A Digital Modulation Signal Generator + MU368060A A WGN Unit Serial No. Ambie nt temperature °C Power source freque ncy Hz Relative humidity % Remarks: Output level accuracy (Section 8.
Appendix C Performance Test Result Sheet C-2..
Index Index-1 [Alphabetical Order] C Calculated Bandwidt h .........................................3-2, 3-3, 3-4, 3-5, 3-6, 5-2, 5-3, 5-4 Calculated Level ...................................................3-3, 3-4, 3-5, 3-6, 5-2, 5-3, 5-4, 5-5 C/N..
Index Index-2..
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