Manuel d'utilisation / d'entretien du produit 8935 du fabricant HP (Hewlett-Packard)
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HP 8935 CD MA Cel lular/PCS Bas e St ati on Test Set AM PS Ba se Stati on Test s Ap pl ica tio n Gu ide Firmware Ve rsion: A.01. 00 a nd above HP Part Number: E6380-90017 Revision A Printed in U .
2 Noti ce Info r mation containe d in this d ocument is subjec t to change w ithout notic e. All Rights Reserved. Rep roduction, a daptation, or translati on without prior w ritten permiss ion is prohi bited, exce p t as allow ed under the copy ri ght la ws.
3 M anufact urer ’s Decla ration This stat em ent is pr ov ided to c om ply with the requirements of the German Sound Emiss i on Directi v e, fr om 18 January 1 991. This produc t has a sound p ressure emis sion (at t he operator posi tion) < 70 d B(A ).
4 Safety GENERAL This pr oduct and rel a ted documentat ion must be revi ew ed for famili arization with safety markings a nd instruc tions before op eration.
5 WARN ING Th is product is a Safety Class I in strume n t (provided w ith a pr otective ea rt hing gr o und inco rp orated in the po wer cord). The mains plug sh all on ly be in serte d in a soc ket outlet provided with a pr ote ctive earth con tact.
6 The openi n g of c overs or re moval of parts is l ikely to expose dangerous vo l tages. Disc onnect the product from all voltage sources w hile it is being o pened . Adjust men ts de scr ibed in th e ma nual ar e pe rform ed wit h power sup p lied to t h e instrument while prot e cti ve covers are removed.
7 Product Markin gs CE - the CE mark is a registered tr ademark of the Eur opean Community. A CE ma rk accompanied by a year indicated the year the de sig n wa s pr o v en . CSA - the CSA mark is a r egistered tr a demark of the C anadian Stan d ard s A sso ci atio n .
8 Warranty This Hewlett -Packard instrument p roduc t i s warr anted aga inst def ec ts in mater ial and work m a nship for a period of one year fr om date of shipment. D uring the w arranty peri od, Hewlet t- Packard Company will at i ts option, e ither repair or replace p roducts whi ch prove to b e defect ive .
9 ASSI STA NCE Mai n t e na n c e Ag r e e m en ts Product maint enance agreements and o ther cust om er assistance agreements ar e available f or Hewlett- P ackard product s . For any assist a nce, contac t your nearest Hew lett-Packard Sal es and Service Offi ce .
10 Regional Sal e s Offices IM PO R TAN T Regi onal Sa l es an d Se rv ic e Of f ic e s East ern U SA Sal es O ffic e Hewlett-Packard Company 2101 Gather Rd. Rock v ille, MD 20850 Tel: (3 01) 258-2000 East e rn US A Sal es O ffic e Hewlet t-Packar d Company 2101 Gat her Rd.
11 Asia S a le s a n d Se rv ic e Hewlett- Packard Asia Ltd. 22-30/ F Peregri ne Tow er Lippo Center 89 Queensw ay , Central Hong Kong G.P.O. Box 863 Hong Kong Telephon e: 852-848 -77 77 Fax: 852-868 -4997 Japan Sales and Se rvice Yo ko ga wa -He wl e tt -Pa ck ard L t d.
12 Main Menu.
Contents 13 Table of Conte nts In This M a nual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1. Getti ng Star ted with AMP S Test About the Tes t Set . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 Cont e nts Measu ring I nserti on Los ses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Memory Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Memor y Cards and I n tializ ation .
15 In This Ma nual In T his Manua l What is Discussed Th is Man ual This manual ex p lains how to use the H P 8935 to manua lly test a n AMPS base stati on. This document p resents a s tep-by-step ap p roach to AMPS bas e station testing usi ng the Test Set, incl uding what you need t o know before y ou can star t testing.
16 Which Docume nt is Require d? The foll owing documents ar e p ar t of the HP 8935 document set . Use the table to help you d ecide whic h document you need.
17 1 Gett in g St arted wi th A MPS Te s t This chapter introduces y ou to the HP 8 935 CDMA Cellular/P CS Ba se Statio n T est Set a nd its AMPS functi ons. For inf ormation on ot her functions i n the Test Set, see “Whi c h Document is R equired?” o n page 18.
18 Chapter 1 Getting St arted with AMPS Test About the Test Set Abo u t th e Test Set Product Descrip tio n This Tes t Set hel p s you insta ll, commission , and maintain AM PS base stati ons. It al so allows y ou to test CD MA b ase statio ns. (This gui de discus ses AMPS testing.
Chapter 1 19 Getting St arted with AMPS Test About th e Test Set Chapter 1 Getting St arted wit h AMPS Test Getti ng He lp If y ou have prob lems using thi s Test Set, and ca nnot find the soluti on i.
20 Chapter 1 Getting St arted with AMPS Test About the Test Set What’s Included wi th this Test Set The equipme nt commonly shipp ed with the base T est Set is l isted bel ow .
Chapter 1 21 Getting St arted with AMPS Test Manual and Automa t ic Operati on Modes Chapter 1 Getting St arted wit h AMPS Test Manua l and Aut omat ic Op er at ion Modes You can opera te the Test Set in either of two modes: m anual or automatic. Co ntrolling the Test Set w i th the key p ad is manual operation.
22 Chapter 1 Getting St arted with AMPS Test Maximizing the Accuracy of Yo ur Measurements Maximizi ng the A ccuracy of Your Measu rements This Tes t Set i s designed t o m ake highly ac curate measurements.
Chapter 1 23 Getting St arted with AMPS Test Display an FM Carrier Si gnal ( Loopback Test ) Chapter 1 Getting St arted wit h AMPS Test Disp la y an FM Carr ie r Si gna l (Loopb ack Te st ) Since a n .
24 Chapter 1 Getting St arted with AMPS Test Display an FM Carrier Signal (Loopback Test) Get Starte d with the Test Set Here are som e guides for selecting s creens and f ields: Use the knob to mov e the cursor ar ound the screen. Reverse video b oxes indicate f ields t ha t can be s el ected.
Chapter 1 25 Getting St arted with AMPS Test Display an FM Carrier Si gnal ( Loopback Test ) Chapter 1 Getting St arted wit h AMPS Test NOT E AF generators 1 and 2 are a utom atically turned off a nytime you a c cess any of the CDMA screens (CDMA GENERATOR, CDMA ANALYZER, CODE DOM).
26 Chapter 1 Getting St arted with AMPS Test Display an FM Carrier Signal (Loopback Test) Anal yzin g an FM Carr ie r S igna l 1. Press the RF A nl key to go to the RF ANAL YZER screen. 2. Se lec t Tune Freq a nd use the key pad to set the frequency to 850.
Chapter 1 27 Getting St arted with AMPS Test Display an FM Carrier Si gnal ( Loopback Test ) Chapter 1 Getting St arted wit h AMPS Test What to Do Ne xt Congratulati ons! You are now ready to begi n testing your AMP S Base Statio n. Proceed to Chapter 2, “Testi ng AM PS Base Sta tions,” on p age 29 .
28 Chapter 1 Getting St arted with AMPS Test Display an FM Carrier Signal (Loopback Test) Main Menu.
29 2 Testing AMPS Base S tations Adv a nc ed Mobile P hone Sys te m (AM PS ) base sta tio ns fo r cellu lar telepho n e syste m s ar e basical ly cont inu ous wav e (CW ) FM voic e trans ce iv ers with so m e control and data signa ls for system oper ation.
30 Chapter 2 Test ing AMPS Ba s e Stati ons AMPS Test s You C an Perform AM PS Te sts Yo u Ca n Pe rf orm The fol lowing tests a re explained in this manual : • "Transmitter Frequency Err or/Offset and P ower Test" on page 34 . • "Transmitter SAT Frequency a nd Deviation" on page 36 .
Chapter 2 31 Testi ng AMPS Base Sta t ions What You Need to Know to B egin Chapter 2 Testin g AMPS Base Stati ons What You Need t o Know t o Begin You need to know how to co ntr ol t he base station a nd the basi c operation of the Test Set before yo u can test you r base station.
32 Chapter 2 Test ing AMPS Ba s e Stati ons Connect ing t he Test Set to Your Base S tation Con n ecti n g the T est Set to You r Bas e Sta t io n The connec tions shown i n F ig ure 2- 1 indica te a .
Chapter 2 33 Testi ng AMPS Base Sta t ions Compensating f or Signal Losses and Gains i n the Test Setup Chapter 2 Testin g AMPS Base Stati ons Co mpe ns at ing for Sig nal Lo sses an d Gai ns i n the .
34 Chapter 2 Test ing AMPS Ba s e Stati ons Transmitt e r Frequency Erro r/ Offset and Power Test Transmitter Frequency E rror/ Offset and Power Test This test c ompares the measured c enter frequenc y of the base sta tion to the AMPS c hannel standa r d.
Chapter 2 35 Testi ng AMPS Base Sta t ions Transmitt e r Frequency Erro r/ Offset and Power Test Chapter 2 Testin g AMPS Base Stati ons 7. Turn on the transmitter. The TX Freq E rr or and TX Po wer measurements are display ed. Note: Di sregard any v alues sho w n for FM Deviati on and AF F req at this ti me.
36 Chapter 2 Test ing AMPS Ba s e Stati ons Transmitt e r SAT Frequency and Deviation Tran smi tt er SA T Fre que ncy and De vi ati o n This t est measures the tr ansmitter ’ s Supervis ory Audio Tone ( SAT ) freque ncy and deviati on in the a bsence of any other modulatin g signal.
Chapter 2 37 Testi ng AMPS Base Sta t ions Transmi tter SAT Frequency and Deviation Chapter 2 Testin g AMPS Base Stati ons 8. Set the F il ter 2 f ield to 6 kH z BPF . This helps remove unwanted noise. 9 . Pr es s th e RF Anl key to a c cess the RF ANAL YZER screen.
38 Chapter 2 Test ing AMPS Ba s e Stati ons Transmitt er Data D evi ation Tran smi tt er D ata De vi ati on This t est measures the tr ansmitter ’ s digital data deviati on in the absence of any other m odulating s ignal.
Chapter 2 39 Testi ng AMPS Base Sta t ions Transmitter Data Deviation Chapter 2 Testin g AMPS Base Stati ons 8. Se t Filt er 1 to <2 0H z HP F . 9. Se t Filt er 2 to >9 9k Hz LP . 10.Press the RF Anl key to access the RF ANAL YZER screen. 11. Enter t he transmitter’s channel number i n the RF Ch an nel field.
40 Chapter 2 Test ing AMPS Ba s e Stati ons Transmitt er Maximum Voice D eviation Trans mitte r Maxi mum Voice Deviat ion This test measur es the tr ansmitter ’s maximum FM Deviation by a voice signa l in t he absence of any other modulation s ignal.
Chapter 2 41 Testi ng AMPS Base Sta t ions Transmitter Maximum Vo ice Deviation Chapter 2 Testin g AMPS Base Stati ons 9 . Pr es s th e RF Gen key t o access the R F GENERATOR screen. 10. Set the AFGe n1 T o field to Audio O ut , and a level of 5 0 mV.
42 Chapter 2 Test ing AMPS Ba s e Stati ons Receiver S ensitivity (SINAD) Recei ver Sens it iv ity (SIN AD) This t est measures the r eceiver’s a bility to demodulate voice signals from ve ry lo w RF car ri er leve l s.
Chapter 2 43 Testi ng AMPS Base Sta t ions Receiver Sensitivit y (SINAD) Chapter 2 Testin g AMPS Base Stati ons 6. Set the CW R F Pa th fi eld to By pass . This turns off the IQ modulation used for C DMA tests. 7. Pre ss SHIFT , RFAnl ( AF Anl) to a ccess the AF AN ALYZE R screen.
44 Chapter 2 Test ing AMPS Ba s e Stati ons Receiver S ensitivity (SINAD) 14. Set a n ini ti al RF gener ato r leve l in the Ampl it ud e field. T his val ue depends on the sensitivit y of the r ec eiver; b ut − 90 dBm shoul d be a good s ta rting point.
Chapter 2 45 Testi ng AMPS Base Sta t ions Receiver Squelch Threshold Chapter 2 Testin g AMPS Base Stati ons R eceive r Squel ch Th re sh old This test d etermines t he RF Signal l evel where the receiver sq uelches (s wi t ch e s o ff) the a udio output.
46 Chapter 2 Test ing AMPS Ba s e Stati ons Receiver S quelch Threshol d 6. Set the CW R F Pa th field to By pa ss . This turns of f the IQ modulation used for CDMA test s . 7. P ress SHIFT , RFAnl (AF Anl) t o access the AF ANAL YZER screen. 8. Set the A F Anl In field to Audi o In .
Chapter 2 47 Testi ng AMPS Base Sta t ions Receiver Squelch Threshold Chapter 2 Testin g AMPS Base Stati ons 13.Set an initial RF generator le v el in the Ampli tu de field. T his value depends on the sensiti vity of the receiver; b ut − 90 dBm should be a good star ting point.
48 Chapter 2 Test ing AMPS Ba s e Stati ons Receiver S quelch Threshol d Main Menu.
49 3 Utility Procedures This chapter contains pr ocedures and instr uctions tha t w ill h elp you make the most ef ficient us e of your T es t Set. Chapter 3 Ut il it y P ro c e d u re s Main Menu.
50 Chapter 3 Utility Procedures Beeper Beepe r The beep er notifi es you when a m essage is d isplayed. S ince a message may be removed fr om the screen before you noti ce it, it is better to leave the be ep er on to a lert you to errors d uring operat i on.
Chapter 3 51 U tility Procedures Measu ring Inserti on Losses Chapter 3 Ut il it y P ro c e d u re s M ea s ur i ng In ser tio n Losse s To make acc ur ate power and r eceiver meas ur ements, the s ig.
52 Chapter 3 Utility Procedures Me m ory Ca rd s Me mory Car ds The sl ot on the f ront of t he T est Set is used for m emory cards . The slot is us ed for the f ollowing: • Stor a ge of sa ve/recal.
Chapter 3 53 U tility Procedures Oscilloscop e Chapter 3 Ut il it y P ro c e d u re s Oscilloscope The built - in 50 k Hz oscill oscope provides • multip l e trig gering formats ( internal a nd exte.
54 Chapter 3 Utility Procedures Oscilloscop e Sele c ting the Oscillo scope’s Input 1. Pre ss Shif t , then RF A nl (AF Anl) t o sel ec t the AF ANALYZER screen .
Chapter 3 55 U tility Procedures Oscilloscop e Chapter 3 Ut il it y P ro c e d u re s Triggering the Oscillo scope You can control follow i ng trigger ing features of the osci lloscope: • Trigger : .
56 Chapter 3 Utility Procedures Oscilloscop e Us ing the Mar ker The mark er is used to help you m a ke measurements with the oscil loscope. By r epositioning the marker, you c an measure the level and tim e . The Marker is contro l led using the Ma rker m enu.
Chapter 3 57 U tility Procedures Online He lp Chapter 3 Ut il it y P ro c e d u re s Onli ne He lp The Test S et contains h elp screens whi c h briefly identify the most commonly used f eatur es of the T est Set. Access the help screens b y pressi ng the Help key .
58 Chapter 3 Utility Procedures Ports: HP-IB, Serial and Parallel Por ts: H P -I B, Ser ial an d P ara l lel There are three types of data ports on the Test Set: H P-IB, Seria l, and Paral le l . T h ey e ach h a ve spe ci fi c purpo s es . HP -IB P or t This port is provided on the Test Set for IEEE 488.
Chapter 3 59 U tility Procedures Ports: HP-IB, Serial and Parallel Chapter 3 Ut il it y P ro c e d u re s 3. Change the sett ings for t he port as desi red.
60 Chapter 3 Utility Procedures Ports: HP-IB, Serial and Parallel Par a llel P or ts There are two parallel ports on t he Test Set. Parall el Port 15 is the onl y parallel p ort tha t can be used for pri nting. It can be selected in the PR INTER CONF IGURAT ION screen.
Chapter 3 61 U tility Procedures Prin ting Chapter 3 Ut il it y P ro c e d u re s Pr intin g You can print from the Test Set via P a rallel Por t 15, Seria l Port 9, or the HP-IB p ort. Note that da ta collect ion is not the same as pr i nting. Data collection can only b e done f r om a soft w are program.
62 Chapter 3 Utility Procedures Measuring Swept Return Loss Meas uri ng Swe pt Ret urn Loss This pr ocedure measures the return loss (VSWR) of an a ntenna using an IBAS IC program that i s in the T est Set’s memory. An external directi onal bridge must be provi d ed (suc h as an Eagle RLB 1 50X5 Option N 5A or equiv a lent).
Chapter 3 63 U tility Procedures Measuring Swept Return Loss Chapter 3 Ut il it y P ro c e d u re s Figure 3-5 Entering Swept Return Loss M easurement I nformati on Figure 3 -6 Swept R eturn Loss Measurement Connections Enter the St ar t and Stop Fr e quency values for the measur em ent.
64 Chapter 3 Utility Procedures Measuring Swept Return Loss The plo t in Fig u re 3-7 is for a cellular band antenna, s w ept from 800 MHz t o 9 99 MHz.
Chapter 3 65 U tility Procedures Tracking Gen erato r Chapter 3 Ut il it y P ro c e d u re s Tra cki ng Gen er a to r The tracking generator i s typicall y used for m ea suring r eturn loss and in se rt io n lo ss .
66 Chapter 3 Utility Procedures User Keys User Key s User keys insta ntl y access instrume nt s etti ngs wi thout using the knob. You can us e user keys to m ove qui c kly between fie lds on the s a me scre en, and to ac c ess field s ettings tha t are not normally avai l able on the s c reen you ar e using.
Chapter 3 67 U tility Procedures User Key s Chapter 3 Ut il it y P ro c e d u re s Assi gni ng a Gl oba l U se r Key 1. Move the cursor to the fiel d you want to assign to a user key. 2 . Pr es s th e Sh ift key. 3 . Pr es s th e k4 (Assign ) k ey. 4 .
68 Chapter 3 Utility Procedures Usi ng Cha nn el Num b ers t o S et Ana ly ze r and Ge ne rat o r Freq uen ci e s Usi ng Chann el Number s to Se t Ana lyzer and Genera tor Fre q ue nci es RF anal y zer and RF gener ator frequenci es can be enter ed by channe l number (the default setting) or b y discrete f requencies ( in MHz).
Chapter 3 69 U tility Procedures Using Cha nnel Numb ers to Set An alyzer and Gen erator F requen cies Chapter 3 Ut il it y P ro c e d u re s RF Chan and Tune Fre q Fie lds NOT E All of th e test procedu r es in this document assume you a re using channel tuni ng.
70 Chapter 3 Utility Procedures Vo ltm e te r Volt m et er A volt meter is availa ble in the Test Set, and can measure low level dc or ac vol tages. The inp ut to the v ol tmeter is controlled by the AF Anl In fi el d in the AF ANALY ZER screen. CAUT ION Do not exceed the r ated inp ut to the Tes t Set for the DC Le vel and AC Le ve l measurements.
Index Index 71 Index A AC level me asu ri ng , 70 AC volts me asu ri ng , 70 AF Anl I nput fie ld , 54 AF conne ctions , 32 AMPS Base Stations manual test ing , 29 AMPS testin g , 18 AMPS tests receiv.
72 Index Index D Data Deviation test , 38 DC level measur ing , 70 DC volts measur ing , 70 Displaying an FM Carrier , 26 Duplex Out field , 33 DUPLEX OUT p ort , 32 loss es , 33 ove rpower , 30 E en .
Index Index 73 Index G gener ating an FM sig nal , 24 Getting Help , 19 Gett ing Sta rte d , 17 globa l user keys , 66 assigni ng , 67 releas ing , 67 H help how to get , 19 onl ine , 57 scre en disp .
74 Index Index K k1, k2 , k3, k4 , k5 local user keys , 66 k1’, k2’ , k3’ global user k eys , 66 knob using , 24 Korea HP Dir ect , 19 L local user keys , 66 assigni ng , 66 pre assi gne d , 66 .
Index Index 75 Index O oscil loscop e , 53 fea tures , 53 fil ter s a n d in put s , 53 ma rk er , 56 selecting the f ilters , 54 selecting the inp ut , 54 tri ggering , 55 P paral lel po rt in put an.
76 Index Index S sal es o ffi ces , 19 SAT Devi ation t est , 36 SAT Fr equency t est , 36 scr eens sel ectin g , 24 seria l p or t , 58 confi guring , 58 confi guring fo r HP- I B commun ications , 5.
Index Index 77 Index V Voice D eviati on (max ) test , 40 voltmeter , 70 conn ector , 70 volume control ling beep er , 50 W web site TMO , 19 what t o do ne xt , 27 Wha t ’s I nc l ude d wi th th i s Te s t Set , 20 www.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté HP (Hewlett-Packard) 8935 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du HP (Hewlett-Packard) 8935 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation HP (Hewlett-Packard) 8935, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le HP (Hewlett-Packard) 8935 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le HP (Hewlett-Packard) 8935, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du HP (Hewlett-Packard) 8935.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le HP (Hewlett-Packard) 8935. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei HP (Hewlett-Packard) 8935 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
