Manuale d’uso / di manutenzione del prodotto E4402B del fabbricante HP (Hewlett-Packard)
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Getting St arte d Guide Agilent T echnologies ESA Spectrum Analyzers This manual provides documentation for the following instruments: ESA- E Serie s E4401B (9 kHz - 1.5 G Hz) E4402B (9 kHz - 3.0 G Hz) E4404B (9 kHz - 6.7 G Hz) E440 5B (9 kHz - 13. 2 GHz ) E440 7B (9 kHz - 26.
2 Notice The information contai ned in this document is subject to change without noti ce . Agilent T echnologies makes no warranty of any kind with reg ard to this material, i ncluding but not limited to, the implied w arranties of merchantabili ty and fitness for a partic ular purpose .
Con tents 3 1. Installation and Setup Init ial In spec tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Pow er R equir emen ts . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Con tents 5. Options and Accessories Ord ering Opti ons and Ac cesso ries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Opt ions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 1 Installation and Setup.
6 Chapter 1 Installation and Setup Thi s chap ter prov ide s the fo llowi ng info rmati on t hat you may n eed whe n you firs t re ceiv e your spectr um analyzer: • “ Initial Inspection ” on pag.
Chapter 1 7 Installation and Setup Initial Inspection Initial Inspecti on Inspect the shi pping container and the cus hioning material for signs of stress . Retain the shipping mat erials f or future use , as yo u may wish to ship the analyzer to anothe r location or to Agi lent T e chnologies for service .
8 Chapter 1 Installation and Setup Initial Inspection Document ation CD-ROM Includ es the docume nts in the standar d set (listed ab ove). Y ou can vi ew and pr in t the inf ormatio n as needed . See the CD-ROM j acke t for instal lation infor mation.
Chapter 1 9 Installation and Setup Initial Inspection If The r e Is a Problem If the shipping mat erial s are damaged or the cont ents of the container are incom pl ete: • Contact t he nearest Agilent T echnologies offi ce to arrange for repai r or rep lacement ( T able 6-2.
10 Chapter 1 Installation and Setup P ower R equirements P ower Requirements The only physical installation of your Agilent spe ctrum analyzer is a co nnection t o a power sour ce. Line voltage d oes not need to be select ed. WA R N I N G F ailure to ground the analyzer properly can result in personal in j ury .
Chapter 1 11 Installation and Setup Pow e r R e q u i r e m en t s Checking the Fuse Where IEC regulations app ly , use a 5 by 20 mm, rated F5A, 250 V IEC approved fuse . This fuse may be us ed with input li ne volt ages of 115 V or 230 V . Its par t number is 2110-0709 .
12 Chapter 1 Installation and Setup P ower R equirements NO TE The front pa nel switc h is a standby switch only ; it is not a LIN E s witch (power d isconnecting devic e). WA R N I N G Install the product so th at the detachable power cord is readily identifiable and easily reache d by the operator .
Chapter 1 13 Installation and Setup Pow e r R e q u i r e m en t s T able 1-3. AC P ower Cords.
14 Chapter 1 Installation and Setup P ower R equirements Battery Information The analyzer uses a lithium ba ttery to enable the internal memory to retain data . The date when the battery w a s installed is on a label on the rear panel of the analyzer .
Chapter 1 15 Installation and Setup T urning on the Anal yzer for th e First Time T urning on the Analyzer for the F irst T ime ❏ Plu g in t he p ower cord.
16 Chapter 1 Installation and Setup Firmware Re vision readily a v ailabl e. Y ou can also obtain the firmw are revision and seria l number by pre ssing Syst em , More , Show Syst em . ❏ Allow the analyzer to w arm-up for 5 minutes before making a calibrated measure ment.
Chapter 1 17 Installation and Setup Firmware Revis ion TIP Y ou can get automatic electro nic noti fication of new fi rm ware releas es and other prod uct up dates/inform ati on by subscribing to the Agilent T ec hnologi es T est & Measurem ent E-Mail Noti fi cation Service for the PSA and ESA Series at http ://www .
18 Chapter 1 Installation and Setup Running In ternal Alignments Running Internal A lignments Each time the analyzer is powered on, the internal alig nme n t rout ine runs automatically . The analyzer w as s hipped from the factory wi th the Alignments mode set to Au t o , Align All .
Chapter 1 19 Installation and Setup Printer Setup and Operation Printe r Setu p and O peratio n A pri nter can be con nect ed to you r ana lyzer if it is eq uip ped with a n ext erna l I/O i nte rface. Supporte d printers a ccept Hewle tt- P ackar d Pr inter Control Language Level 3 ( PCL3) or 5 (PCL5).
20 Chapter 1 Installation and Setup Printer S etup and Operation Inter connection and Setup 1. Turn off the print er and the analyzer . 2. Connect the pri nter to the analyzer par allel I/O interface connec tor using an IEEE 1284 compliant p arallel printer cable .
Chapter 1 21 Installation and Setup Printer Setup and Operation Unsupported printe r, Printer Type set to None This indicates that the analyzer has succes s fully identified the connec ted printer , but the printer is not supported by the analyzer .
22 Chapter 1 Installation and Setup Pro tecting Against Electr ostatic Dischar ge Protecting Agains t Electrostatic Disc harge Electrost atic disch arge (ESD) can da mage or dest roy electroni c components (the possibility of unseen damage caused by ESD is present whenever co mponents are transported, stored, or used ).
Chapter 1 23 Installation and Setup Legal Info rmation Legal In formati on WA R N I N G This is a Safety Class 1 Product ( provided with a protecti ve earthing ground incorpor ated in the power cord). The mains plug shall be inserted only in a socket outle t provided with a protective earth contact.
24 Chapter 1 Installation and Setup Legal Inf ormation.
25 2 F ront and Rear P anel F eatures This ch apter g ives y ou an ov ervi ew of th e fron t and r ear pan els of your analyzer . F or details o n analyzer ke ys and remote programming, refer to the User ’ s and P rogrammer ’ s Guide. F or connector specificatio ns (including input /out put le vels), see the Specif icat ions gui de.
26 Chapter 2 F ront and Rear P anel Feature s Fron t Pane l Over view 2.1 F ront P anel Overview This se ction pro vides inf ormation on the anal yzer ’ s front pan el, including: • Front P anel Conne ctors and Keys , see below • “ Displ ay Annotati ons ” on page 30 2.
Chapter 2 27 F ront and Rear P anel Features Fron t Pan el Overview parameters needed for making measurements . 6 MEASURE accesses a menu of keys that automate some common analyzer measurements . Once a measurement is running , Meas Setup access es additional menu keys for defining your measurement.
28 Chapter 2 F ront and Rear P anel Feature s Fron t Pane l Over view frequency span a re GHz , MHz , kHz , and Hz , whereas the units for re ference level are +dBm , − dBm , mV , µ V , and µ A .
Chapter 2 29 F ront and Rear P anel Features Fron t Pan el Overview between the sp lit-screen a nd full-sized di splay of t he active win dow . 21 He lp . Press th e Help key and then any f ront pane l or menu key to get a short descripti on of t he key function and the a ssociated SCPI comman d.
30 Chapter 2 F ront and Rear P anel Feature s Fron t Pane l Over view 2.1.2 Display Annotations T abl e 2 -1 Scre en Anno tatio n Item Description Associated Functi on Key 1 a Detector mo de Det ect or 2 Reference level Ref Le vel 3 Act ive func tion bloc k Refer to th e descr iption o f the act ivated function.
Chapter 2 31 F ront and Rear P anel Features Fron t Pan el Overview 9 GPIB annunciators R - remote opera tion L - GPIB listen T - GPIB talk S - GP IB S RQ See programming document ation.
32 Chapter 2 F ront and Rear P anel Feature s Fron t Pane l Over view 25 Trigger/S weep F - free-run tri gger L - line t rigger V - video trigge r E - external (fro nt) trigge r T - TV trigger (Option.
Chapter 2 33 F ront and Rear P anel Features Rear-P anel Features 2.2 Rear-P anel F eatures 1 Po w e r i n p u t is the input for the ac line power source . Make sure that the line-power so urce outlet has a protec ti ve ground contact. 2 DC P o we r is the input f or the d c power s ource.
34 Chapter 2 F ront and Rear P anel Feature s Rear-P anel Features extern al voltag e input that triggers t he analy zer intern al sweep source or t he gate functi on (Time Gate , Optio n 1D6).
Chapter 2 35 F ront and Rear P anel Features Rear-P anel Features 6 GPIB and p arallel interface (Option A4H ) is an optio nal interface. GPIB support s remote anal yzer opera tion. A parallel p ort is includ ed for printin g only . 7 RS-232 and paralle l interface (Opt ion 1AX) is an optional int erface.
36 Chapter 2 F ront and Rear P anel Feature s Rear-P anel Features PRESEL TUNE OUTPUT pro vides a signal to co ntrol external prese lected mixers if External Mixing (Opt ion A YZ) is installed. 11 Card Slot Ide ntificati on Number s. Refer to T able 2-6.
Chapter 2 37 F ront and Rear P anel Features Rear-P anel Features 15 DC Fuse prot ects the analyzer from dra wing too muc h dc power . Repl ace only with a fuse of the same rat ing.
38 Chapter 2 F ront and Rear P anel Feature s Ke y Over view 2.3 Key Overview The ke ys labele d FREQUENCY Cha nnel , System , and Marker ar e all examp les of fron t-panel k eys. The fro nt-panel k eys are dark g ray , light gray , gree n, or white in color .
Chapter 2 39 F ront and Rear P anel Features Ke y Overview In other key menus , o ne key labe l will alw a ys be highlight ed to show w hich key ha s been se lected but the menu i s immediatel y exited when a s election i s made. F or example , when you press the Orie ntation key (o n the Print Setup menu) , it will bring up its own menu o f keys.
40 Chapter 2 F ront and Rear P anel Feature s Fron t and Rear P anel Symbols 2.4 Front and Rear P anel Symbols This sy mbol is used to ind icate power ON. This sy mbol is used to ind icate power STANDBY mode. This sy mbol indi cates the inp ut power requ ired is AC.
41 3 Making a Basic Measurement This chapt er pro vides information on basi c analyzer operation. F or more information on making measurements , see the measure ment guide for your analyzer .
42 Chapter 3 Making a Basic Measurement This chapter is divide d into the following section s: •“ Using the Front Pa nel ” on page 43 •“ Presetting the Sp ect rum Analyzer ” on page 44 •“ Viewing a Signal ” on page 45 CA UTION Ensure that the tot al power of all signal s at the analyze r input does not exceed +30 dBm (1 wat t).
Chapter 3 43 Making a Basic Measurement Using the Fro nt P anel Using the Front P anel Entering D ata When setting measur ement par ameters , there are sever al w ays to enter or modify the value of the ac tive f unction: Using Menu Keys Menu Keys (whic h appear along t he right si de of th e displa y) provide ac cess to many analyzer functions .
44 Chapter 3 Making a Basic Measurement Presetting t he Spectrum Anal yzer Presetting the Spectrum Ana lyzer Preset provide s a known starting point for making measure ments . The analyzer has thr ee typ e s of pres et : Factory Pr eset Restores the analyzer to its fa ctory-defi ned state .
Chapter 3 45 Making a Basic Measurement Viewing a Sig nal V iew ing a Si gnal 1. Press Preset . If the softkeys Fac t or y P re s et and User P reset appear , select Factory Prese t . 2. Connect the a nalyzer ’ s rear panel 10 MHz REF OUT to the f ront-panel input.
46 Chapter 3 Making a Basic Measurement Viewing a S ignal F igure 3-1 10 MHz In ternal Reference Signal and Associ ated Spectrum Setting Frequenc y Span 5. Set the f requency span t o 50 MHz: Press SP AN , 5 , 0 , MHz . This displays the sign al as shown in Figu re 3-2 .
Chapter 3 47 Making a Basic Measurement Viewing a Sig nal F igure 3-2 Span Changed to 50 MHz Reading Frequenc y & Amplitude 6. Place a mar ker (labeled 1 ) on the 10 MHz peak, as shown in Fig ure 3 -3 .
48 Chapter 3 Making a Basic Measurement Viewing a S ignal Figure 3 -3 A Ma rker o n the 10 MH z P eak F igure 3-4 Relationship Between F requency an d Amplitude Marker A nnotation Active functi on blo.
Chapter 3 49 Making a Basic Measurement Viewing a Sig nal Impro ving Fr equency Accurac y 9. While not all of the zeros followi ng the decimal in the active f unction bloc k are significan t, the numbers after the decimal in the marke r annotat ion (upper -rig ht corner of scree n) ar e significant.
50 Chapter 3 Making a Basic Measurement Viewing a S ignal NO TE After properly se tting the analyzer to display your si gna l, you can sa ve the set tings as ei ther a user preset (press Sy stem , Po w e r O n / P r e s e t , Save User Pres et ), or a file (s ee “ Sav i ng a F il e ” on page 57 ).
51 4 V iewing Catalogs and Saving F iles.
52 Chapter 4 Viewing Catalogs and Sa ving Files The analyzer s to res and retr iev es data similarly t o the wa y that a pers onal computer ( PC) does: both have inte rnal storage and a floppy disk drive . While a PC has an internal driv e , the analyzer ’ s int ernal s torage is nonvolatile (flash) me mor y , which acts as an internal drive .
Chapter 4 53 Viewing Catalogs and Sa ving Files File Menu Functi ons F ile Menu Func tions This chapt er describes how to use the functio ns located under the front -panel File key . Data storage and r etr ieval are handled s imilarly to that of pe rsonal computer s (PCs).
54 Chapter 4 Viewing Catalogs and Sa ving Files File Menu Fun ctions Press Fi le , Catal og to br ing up a scre en display as shown in Figure 4- 1. F igure 4-1. Catalog Menu NO TE Use the front-p anel Step Keys or Knob and the Dir Up or Dir Select ke ys to move up and down within the direc tory informati on b ox .
Chapter 4 55 Viewing Catalogs and Sa ving Files File Menu Functi ons b. Type: column displays the extension of the f ilename, for example , .SET , .ST A , .TRC . Directories are d isplayed as DIR and d rives have nothing liste d under Type: . They are only designated by the Name: column ( [-A-] or [ -C-] ).
56 Chapter 4 Viewing Catalogs and Sa ving Files File Menu Fun ctions F orma tting a Floppy Disk Y ou can format a floppy disk in the analyzer . The format is MS-DOS 1 . Note t hat it is not necessar y to format your f l opp y disk with the analyzer; pre formatted disks can be used with th e a na l y z e r .
Chapter 4 57 Viewing Catalogs and Sa ving Files Saving a File Saving a File Y ou can save files (setups , sta tes, traces , limits , correctio ns , mea surement results , or screens) to a flop py disk ( A:), or t he internal drive (C :). In this example you will save a trac e to the i nte rnal C: d riv e.
58 Chapter 4 Viewing Catalogs and Sa ving Files Saving a Fil e F igure 4-3. Viewing T race 1 6. Activate trace 2 and put it into minimum hold by pressing T race (2) , Mi n Hol d . Y our analyzer displa y sho uld look similar to Figure 4-4. F igure 4-4.
Chapter 4 59 Viewing Catalogs and Sa ving Files Saving a File F igure 4-5. Viewing T races 1, 2, and 3 Step 2. Save the file 1. T o access the Save menu, pres s, File , Save . 2. Select the type of file you want to sa ve . In this example you are sa ving a trace; press Ty p e , Tr a c e .
60 Chapter 4 Viewing Catalogs and Sa ving Files Saving a Fil e existing f ile. If you selec t a filename tha t already exis ts, the status bar will displa y the message: File already exists .
Chapter 4 61 Viewing Catalogs and Sa ving Files Saving a File Loading a file 1. Reset th e analyzer by p ressing Preset , F actor y Prese t (if pr esent). 2. T o access the Load menu, press File , Load . 3. Select th e ty pe of fi le you w ant to load (s etup , stat e , t rac e, li mits , o r co rre ction s).
62 Chapter 4 Viewing Catalogs and Sa ving Files Saving a Fil e Agilent E4401B and E4411B , pr ess Input/Output , Amptd Ref (Off) , for all o ther models , pr ess Input/Output , Amptd Ref Out (Off) . Note that when a t race is load ed, it is pl aced in view mode .
Chapter 4 63 Viewing Catalogs and Sa ving Files Saving a File Renaming a File 1. T o access the Rename menu, press File , Rename . 2. Select t he type of file you want to rename (setup , stat e, trace , limits , screens , or correcti ons). I n this exampl e you are r enaming a trace file; pr ess Ty p e , Tr a c e .
64 Chapter 4 Viewing Catalogs and Sa ving Files Saving a Fil e Copying a File 1. T o access the Copy menu, press File , Copy . This menu function brings up 2 direc tory boxes as described by the From: and To: fields locate d direc tly above the bo xes .
Chapter 4 65 Viewing Catalogs and Sa ving Files Saving a File NO TE Highlighting a filename i n the To: directory box has no significance . The file cannot be placed ins ide another file . 7. Press Cop y Now to execute the operation. The message: “Copying file” is displaye d during the copying proc ess.
66 Chapter 4 Viewing Catalogs and Sa ving Files Using the Alpha E ditor Using the Alpha Edi tor The Alph a Editor enables you to s elect lett ers to enter a name for a file o r directo ry ( File , Rename , for ex a mp le). 1. Use the More keys t o disp lay the s oftke y that lists th e char acter y ou wan t.
67 5 Options and Accessories This chapt er lists options and acc es sories availa ble for your analyzer ..
68 Chapter 5 Options and Accessories Orderin g Options and Accessories Orde ring Op tions and Acc essor ies Options and acc essories hel p you configure the analyzer for your specific app lications , and enable yo u to use the analyzer .
Chapter 5 69 Options and Accessor ies Options Options Option E4411B E4401B E4402B E4403B E4404B E4405B E4407B E4408B 042 Gray Backpack Carrying Case •• • ••• • • 044 Y ellow Backpack C.
70 Chapter 5 Options and Accessories Options 1D7 50 to 75 Ohm Mat ching P ad •• • ••• •• 1DN 50 Ohm Tracking Ge nerator •• • ••• •• 1DP 75 Ohm input f •• 1DQ 75 Ohm.
Chapter 5 71 Options and Accessor ies Options Option Descriptions Each option is described below in alphabe tical order . UKB Low Fr equen cy Exte nsion o •• • • UK6 Commercial Calibration f .
72 Chapter 5 Options and Accessories Options 5 Y e ar Se r vice Suppor t W50 Option W50 provides your analyzer with a t otal of 5 years of s ervice sup port.
Chapter 5 73 Options and Accessor ies Options HP 8566B/8 568B Programming Code Compatibilit y 266 Option 260 allows use of a limited set of 856 6 Series pr ogram min g com mand s to con trol t he E SA Serie s analyzers . When t his option is enabled, SCPI commands are d isabled if the remote language selected is not SCPI.
74 Chapter 5 Options and Accessories Options W e b Remote Control Software 230 Option 230 provide s software whi ch can be used to cont rol th e analyz er rem otely o ver th e web.
Chapter 5 75 Options and Accessor ies Options Bluetooth Premium Bundle 304 Option 3 04 prov ides the followin g: • Bluetooth FM demodulato r (Option 106) • Bluetooth measure ment perso.
76 Chapter 5 Options and Accessories Options Componen t Level Service Documentation 0BV Option 0BV provid es a copy of the Agilent ESA /EMC Spectrum Analyzers Compo nent-Level Information . T he componen t-level in formation includes parts lists, component-location diagrams , and schematic diagrams for selec ted assembl ies .
Chapter 5 77 Options and Accessor ies Options External Mixi ng A YZ Option A YZ allows the use of HP/Agilent 11970 Series , and HP /Agilent 11974 external mix ers with the Agilent E440 7B analyzer t o exten d the fr equency ran ge to 11 0 GHz. O peration to 325 GHz is also po ssible with non-HP/Agilent mixers .
78 Chapter 5 Options and Accessories Options FM Demod ulation BAA Option BAA allows you to demodulat e, display and measure deviation o f FM modulated signals .
Chapter 5 79 Options and Accessor ies Options High Stab ility Freq uency Reference 1D5 O ption 1D5 improves the frequency ref erence accuracy . The an alyzer ’ s synth esizer i s phase locked to an oven controll ed crystal os cillator (OC XO), instead of the standard VCXO .
80 Chapter 5 Options and Accessories Options Modulat io n Analy si s Pe r s o n a l i t y 22 9 Opt ion 229 ad ds demodu lation and analysis o f the follow ing base-band modulation f ormats.
Chapter 5 81 Options and Accessor ies Options Phas e Nois e Measu rement Pe r s o n a l i t y 226 O ption 2 26 is an au tomated ph ase noise (dBc/Hz) measu rement solution , provid ing the ability to measure SSB no ise , RM S nois e, DA NL, as wel l as th e real -tim e generation of a phase noise vs .
82 Chapter 5 Options and Accessories Options Service Documentation and Performa nce Ve r i f i c a t i o n a n d Adjustment Software 0BW Option 0BW pro vides a copy of the Agile nt ES A Spectrum Analyzers Servi ce Guide and PC -based performance verification and adjustment softw are on CD-ROM .
Chapter 5 83 Options and Accessor ies Accessories Access ories A number of accessori es are available from Agilent T echnologies to help you configure your analyzer for your specifi c applications . They can be ordered through your loc al Agilent Sales and S ervice Offic e and are listed below .
84 Chapter 5 Options and Accessories Accessories 45 MHz to 1 G Hz. (P ower is supplied by the probe power output of the analyzer .) • The 11909A low noise preamplifier pro vides a minimum of 32 dB gain from 9 kHz to 1 GHz and a typical noise figure of 1.
Chapter 5 85 Options and Accessor ies Accessories The following four models ar e avail able: Agilent E1779A Battery P ack The E1779A is a battery pack that will power an Agilent analyze r for 80 to 114 minutes , depending on the opt ions inst alled in the analyzer .
86 Chapter 5 Options and Accessories Accessories with an external sig n al ge nerat or . These external directio nal bridges offer high directivity and excellent por t match. The 86205A operates over a frequ ency range of 300 kHz to 6 GHz. The 86207A operates over a frequency range of 300 kHz to 3 GHz.
87 6 In Case of D ifficul ty This chapt er inc ludes information on how to chec k for a problem with your Agilent T echnologies s pectrum analyzer , and how to return it for serv ice.
88 Chapter 6 In Case of Difficulty Before calling Agil ent T echnologies , however (or ret urning an analyzer for service), perform t he quick c hecks l isted in “ Chec k the Basic s ” on page 90. This chec k may eliminate the prob lem. If a problem pers is ts , you may choose to: • Repa i r th e a n a lyzer y ou r se lf .
Chapter 6 89 In Case of Difficulty T ypes of S pectrum Analyzer Messages Types of Sp ectrum Analyzer Mes sages The analyzer c an generate var ious messages that appear on the displa y during op eration. F or a complete list of s pectrum analyzer messages , see the Ins trument Messages and Functional T ests manua l.
90 Chapter 6 In Case of Difficulty Before Calling Agilent T echnologies Before Calling Agilent T echnologies Check the Basics ❏ Is th ere power a t the receptac le? ❏ Is the analyz er turne d on? Listen for inter n al fan nois e to det ermine if the analyz er cooling fan is running .
Chapter 6 91 In Case of Difficulty Before C alling Agilent T ec hnologies ❏ P erform an Alignment. Pres s System , Alignments , Align Now , All . ❏ If the previou sly per for med alignments did not reso lve the problem, press Syst em , Alignments , Loa d Defaults .
92 Chapter 6 In Case of Difficulty Before Calling Agilent T echnologies Read the W arranty The war rant y for your analyzer is on page 23 . Please read it and become familiar with its term s . If your analyzer is covered by a separate mainten ance agreement, please be famil iar with its te rms .
Chapter 6 93 In Case of Difficulty Before C alling Agilent T ec hnologies T able 6-2. Contacting Agilent T echnologies Online assist ance: www.agilent.
94 Chapter 6 In Case of Difficulty Returning an Anal yzer for Service Returning an An alyzer for Service Service T ag When you are r etur ning an ana lyze r to A gile nt T echn olog ies fo r serv ice, fi ll out and a ttach one of the blue service tags provided at the end of this chapter .
Chapter 6 95 In Case of Difficulty Returning an Anal yzer for Service 5. Surround the equip ment with three to four inches of packi ng material and prevent the equipment from moving in the carton. If pack ing foa m is not available , the best alternative is S .
96 Chapter 6 In Case of Difficulty Returning an Anal yzer for Service.
Index Ind ex-97 Numeric s 10 MHz REF INPUT , 36 10 MHz REF OUTPUT , 36 50 ohm RF bri dge , 86 50 ohm/7 5 ohm mi nimum loss pad , 83 75 ohm matching transformer , 83 , 85 75 ohm RF bri dge , 86 A AC pr.
Index-98 Index firmware upgrade information , 2 floppy disk format , 56 FM Demodulatio n , 35 Bluetooth , 35 card slot lo cation , 34 format a dis k , 56 fre quen cy accu racy , increa sing , 49 frequ.
Index Ind ex-99 RS-232 Cable , 86 RS-2 32 ca ble , 86 RS-232 interfa ce connector , 35 S save f iles , 57 , 59 , 61 Save key , 27 savin g bitmaps , 53 , 57 , 59 trace files , 53 , 57 , 59 screen a nno.
Index-10 0 Index.
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 HP (Hewlett-Packard) E4402B 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 HP (Hewlett-Packard) E4402B - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso HP (Hewlett-Packard) E4402B imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul HP (Hewlett-Packard) E4402B ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il HP (Hewlett-Packard) E4402B, 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 HP (Hewlett-Packard) E4402B.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il HP (Hewlett-Packard) E4402B. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo HP (Hewlett-Packard) E4402B 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.
