Manuale d’uso / di manutenzione del prodotto MU368060A del fabbricante 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..
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Anritsu MU368060A è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Anritsu MU368060A - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Anritsu MU368060A imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Anritsu MU368060A ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Anritsu MU368060A, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Anritsu MU368060A.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Anritsu MU368060A. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Anritsu MU368060A insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
