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HP 8935 CD MA Cel lular/PCS Bas e St ati on Test Set Referen ce Gui de Firmware Ve rsion: A.01. 00 a nd above HP Par t N u mb er E 63 80- 90 01 9 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.
Contents 3 Produc t Des cript i on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 In Th is Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Convent ions Us ed in this Boo k .
4 Cont e nts Tra nsfer Stored D ata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 SA (spect rum an alyzer) Self Calibr ation O N/OFF . . . . . . . . . . . . . . 65 Cata log PC (Memory ) Card . . . . . . . . . . . . . . .
Contents 5 Freq Err. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Gai n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Gen Dir . . . . . . . . .
6 Cont e nts AFGen 1 To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124 AFGen 2 Freq. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 AFGen 2 To . . . . . . . . . . . .
Contents 7 Sen sitiv ity ( spectr um anal yzer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 Set tling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Span. . . . . . . . . . . . . . . .
8 Cont e nts Par ity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Pri nter Port: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Pri nt Ti tle:. . . . .
Contents 9 Acces sories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Ext ernal M onitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Man uals (En glish a nd n on-Engl ish) .
10 Cont e nts Main Menu.
11 Produ c t In forma tion Main Menu.
12 Manufact urer’ s Declar ation This s tatement i s provided to c omply with th e requirements of the German Sound Em ission Direc tive, from 1 8 January 1 9 91. This pr oduct has a sound pressure e m i ssion ( a t the o p erator pos ition) < 7 0 d B (A ) .
13 Safe ty Considerat ions G ENERAL This produc t and related d ocumentation must b e reviewed for familiari za tion w ith safet y m arkings a nd instr uc tions bef or e operati on.
14 Sa fety Co ns id er at ion s f o r th i s I n stru m e nt WARNING This product i s a Safety Class I instrument (provide d with a prot e ctive e arthing ground incorporated in t h e po w er cord ). The ma ins plug shall only be inser ted in a s ocket out let provided with a protective eart h contact.
15 Ser vicing inst ruct ions a r e for use b y qual ified pe rson nel only. To avoid electrical shock, do not perform any serv icin g unless you are qualifie d t o do so. The opening of c overs or removal of par ts is likely t o expose dangerous voltages.
16 CERTIFICATIO N Hewlett-Packard Company c er tifi es that this p r oduct met i ts published spec i ficatio ns at the t im e of s hi pment fro m the factor y .
17 Table 1 Regional S ales and Service Off ices East e rn US A Sal es O ffic e Hewlet t-Packar d Company 2101 G ather Rd . Rockvill e, MD 20850 Tel: ( 301) 258-2000 East ern U SA Sal es O ffice Hewlett-Packard Company 2101 Gather Rd.
18 Asia Sales and Se rvic e Hewlett -Pac k ard Asia Ltd. 22-30 /F Pere grine Tower Li p po Ce nter 89 Quee nsway, Central Hong Kong G.P.O. Bo x 863 Hong Kong Telep hone: 852- 848- 7777 Fax: 852- 868-4997 Japan S a le s a n d S e rv ic e Yoko gawa-H ewl ett-Pac kard Ltd.
19 Product Descr iption The HP 8935 CDMA Cel l ular/PCS Ba se Station Te s t Set of fers full sign a l gene r at ion an d an al ysi s ca pab il ity a nd su ppo rt fo r c ellul ar frequency b a nds and in ter national P CS frequency band s .
20 In Th is B ook • Chapter 1, “ Getting Sta r ted,” on pa ge 23 fa m i liarizes you with the front panel controls . It introduces the differ ent types of c on trol fields that are us ed to make.
21 Conventio ns Used i n this Book Screen names a re shown a s follows: COD E DOM. Keys are show n in the fol lowing typef a ce: CDMA Gen . Shi f ted f unc tions (labeled in blue ab ov e the keys) a r e acces s ed by pressi ng and releas i ng the bl ue Sh ift key, and then the key below the blue labe l.
22 Main Menu.
23 1 Gett in g St arted • “Before Co nnecting a Ra dio” on pa g e 24 • “Changing the Measurement Scr een” on page 2 5 • “Changing the Control F i elds” on p age 26 • “Ins trument.
24 Chapter 1 Getting Started Before Conn ecting a Radio Befo re Co nnecting a R adio NOTE The RF IN/O U T port shoul d be used for all tra ns mitter test s when the r a dio is c onnected d irectly to t he Test Set. (All UUT tr ansmitter power measurement s are made throug h this por t) .
Chapter 1 25 Getting Started Changing th e Test Set’s Display Ch ang ing t he Tes t Set’s Di sp lay Changi ng the Measureme nt Sc reen The measurement s creen is c hanged using the titleb a r at th e top of the screen and the cursor-contr ol knob, usi ng the GENERATO R/ANALYZER keys, or by using the U TILS keys.
26 Chapter 1 Getting Started Changing th e Test Set’s Display Chang ing the Contr ol Fie lds There are several types of c o ntro l fields in the Test Set. T his section desc r ibes some of t he diff erent types of fields. Uni t-of-M e asu r e F i eld Unit- of -measure can be changed to display measurements in different values or magnitudes.
Chapter 1 27 Getting Started Changing th e Test Set’s Display Underlined Entry Field Underlined ent ry field s provide a choi ce of two settings (tog gle). Fi g ur e 1- 3 Und er l i ne d En tr y Fi el d To Change an underli ned entry St ep 1. Positi on the cursor at the fiel d .
28 Chapter 1 Getting Started Changing th e Test Set’s Display On e- of- M any Fie l d One-of-many fields d isplay a l ist of choic es when selected . Figure 1- 4 One-of-Many Field To make a one-of-many choice Step 1. Pos i tion the c ursor at t he field.
Chapter 1 29 Getting Started Changing th e Test Set’s Display Numeric-Ent ry Fi el ds Values for numeric entr y fields c an be entered a nd changed usi ng various m ethods , depending on your tes ting needs. Fi g ur e 1- 5 Nume r i c - Ent ry Fi e l d To change a value St ep 1.
30 Chapter 1 Getting Started Changing th e Test Set’s Display De cim al Value s Decimal values are used for most num eric entry f ields. The acc eptable entri es for decimal values are 0 through 9 ,, +/ - , and EE X . The +/- key is us ed for enter i ng negative numbers.
Chapter 1 31 Getting Started How d o I Verify th at the T est Set is O perating P roperly? Ho w do I Ver ify th at the Tes t Set i s Op er atin g Pr oper ly? If y our T est Set powers- up an d dis p l.
32 Chapter 1 Getting Started How do I Verify th a t the Test S et is Operating Properly? Fig u r e 1-6 CDM A Spec trum Main Menu.
33 2O p e r a t i n g O v e r v i e w • "Displ ay ing CDMA Measurements " on page 34 • "Displ ay ing Analog M easurements" on page 36 • "Using Cha nnel Numbers to Set An.
34 Chapter 2 O p er at i n g Ov er v i ew Displaying CDMA Measuremen ts Dis playi ng CDMA Meas ure ment s Channel Power, Rho, EV M, Av erage Power You can s elect channel power, rho, EVM, or average pow er on the CDMA AN ALYZER or CD MA GENERATOR screen as shown in Figu r e 2 - 1 .
Chapter 2 35 O p er at i ng Ov er v i e w Displaying CDMA Measuremen ts Code Domain Measureme nts (Powe r, Ti ming, Phase) Code domain m ea surements are d isplayed on th e CODE DOM screen. To select a code domain meas urement, go to the CODE DOM scree n and selec t a measurement fr om the Meas ur em ent field in the Main controls m enu.
36 Chapter 2 O p er at i n g Ov er v i ew Di sp la yi ng An al og M e asu rem en ts Dis pl ayi ng An al og Meas ur e ments RF Me asurements Frequency Error , Frequency RF Frequenc y Error and RF Freq uency are disp layed on the RF ANALYZER, RF GENERATOR, and AF ANALYZER screens .
Chapter 2 37 O p er at i ng Ov er v i e w Disp laying A nalog M easurem ents Display ing AF Measurements FM De vi ation , AM D epth, AC Le vel The AF An l In setti ng determines the AF analyzer’s i nput and the measurement di s played in the top-rig ht corner of the measurement area (se e fi gu r e 2 -4 ) .
38 Chapter 2 O p er at i n g Ov er v i ew Di sp la yi ng An al og M e asu rem en ts SINA D, Dist or tion , SNR , AF Freque ncy, DC Level, These meas urements are avail able on the RF GENERATOR, RF ANAL YZER, and AF ANALYZER screens. Se e figu r e 2 -5 .
Chapter 2 39 O p er at i ng Ov er v i e w Disp laying A nalog M easurem ents D is pla yi n g A nal og M ea s ur em ent R esu l ts on a M eter S ca le Figure 2-6 Displaying the Meter Scale Measurement re s ults can b e displa y ed on a meter scale. The di gital numeric value i s sti l l displaye d (but smal ler) under the m eter scale.
40 Chapter 2 O p er at i n g Ov er v i ew Usi ng Cha nn el Num b e rs t o S et Analy ze r and Ge nera to r Freq ue n c i es Usi ng Chann el Number s to Se t Ana lyzer and Genera tor Fre que ncie s 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 2 41 O p er at i ng Ov er v i e w Calibrating the Channe l Powe r Measurem en t Calib ra ti ng th e Cha nne l Power Meas ure me nt To calibra te a channel power me asurement at the RF IN/OUT port using the internal CDMA gene ra tor St ep 1. Go to t he CDMA ANALYZER screen a nd choose t he Ch an Pw r measurement.
42 Chapter 2 O p er at i n g Ov er v i ew Changing th e Inc rement or Dec rement S etting Cha n gi n g the In c re m en t or D e cr em e nt Sett in g Spec ify ing An Increment Value for the Arrow Keys or Knob The Incr Set key is used t o assign a sp ecific i ncrement value.
Chapter 2 43 O p er at i ng Ov er v i e w Us in g Me asure m e nt Li m it In di c at or s Usin g Meas urement Limi t In dicato rs The Lo Li mit and Hi Lim it functions are used to d efine a meas urement “window.” You can set a high limit, a low limit, or both.
44 Chapter 2 O p er at i n g Ov er v i ew Using Measu remen t Limit Indicators To reset or remove l im its To re set a limit t ha t has been ex c eeded Step 1.
Chapter 2 45 O p er at i ng Ov er v i e w Setting A M eas urement Reference Sett ing A M ea surem ent R eferen ce The referenc e set (Ref S et) funct i on establi shes a measurement reference p oint. Thi s allows you to make a direct c omparison betw een two measurement results, or between a measurement standard and the actual measurement results.
46 Chapter 2 O p er at i n g Ov er v i ew Averaging M easu rem en ts Aver agin g Measu r emen ts The Avg (a verage) func ti on allo w s you to di splay the av er age value of a number of m easurements. You ente r the number of measurement samples used to calcul ate and disp l ay the measure m ent average.
Chapter 2 47 O p er at i ng Ov er v i e w Setting an RF Generator/Anal yzer Offset Set ti ng an R F Gener at or/ An aly ze r Offse t You can set a fixe d frequency of fset between the RF generator a nd the RF analyzer. This feature is convenient for testi ng radios with a fixed transmit/rec eive freque nc y off s et.
48 Chapter 2 O p er at i n g Ov er v i ew Saving and R ecalling Instrum ent S etups Savi ng an d Re cal li ng In st ru ment Se t up s The sa ve and recall f unctions all ow you to st or e diff er ent inst r ument setups a nd retriev e them later, e liminating the t ask of re- c onfiguri ng the Test Set.
Chapter 2 49 O p er at i ng Ov er v i e w Saving and R ecalling Instrum ent S etups To remove (cle ar) an indivi dual save r e gister St ep 1. Specify where the re g ister is s tored using t he S ave /Rec al l field on the I/ O CON FIGURE scr een. St ep 2.
50 Chapter 2 O p er at i n g Ov er v i ew Saving and R ecalling Instrum ent S etups BASE Setti ngs The BASE register contai ns any fiel d settings t he user has saved t hat are d ifferent fr om the instrume nt pr eset stat e. It esta b lishes a refer ence point fo r all futu r e saves.
Chapter 2 51 O p er at i ng Ov er v i e w Using USER Key s Usin g USER Keys You can use user keys to m ove quickly b etween fiel d s on the sa me screen, a nd to acc ess fiel ds that are no t normally available on the screen you a re using. Lo cal user keys are us ed to mov e b etween setting s on the sc re en tha t is displayed.
52 Chapter 2 O p er at i n g Ov er v i ew Using USER Key s Assignin g and Rel easing U SER Ke ys When defi ning user keys, the Ass ign f unction is used to crea te key defini tions; t he Re lease func tion removes the definiti ons. Re-assigni ng a user key to a di f ferent fi eld automatical ly releases i t from its previous sett ing.
Chapter 2 53 O p er at i ng Ov er v i e w Replacing Batteries R epl aci n g Ba tte ri es There are two methods by which the Test Set backs up its RAM. O ne is a set of two AA batteries mounted behind the rea r panel of the Test Set. You must peri od ically c hange these batter ies.
54 Chapter 2 O p er at i n g Ov er v i ew Replacing Ba tteries Main Menu.
55 3 Overv iew of t he Test Set ’ s Built-In Tools • "Using RF T ools Pro g ram " on pa g e 56 • "Using the Code Domain Analy zer" on page 67 • "Using the Spectrum Ana.
56 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng R F T ool s Pr og ram Usi ng RF Tools P rogram The RF Too ls Program resi des in the Test Set’s RO M . The foll ow ing test s and util ity programs a re availabl e in this p rogram. Se e F ig u re 3-1 on pa ge 57 for instructions on loading the RF TOO LS prog ram.
Chapter 3 57 Ove rview of the Test Set’s Buil t -In Tools Usin g R F To ol s Pr ogr am Figure 3-1 Loading and Running RF Tools Posi tion the c urs or at Choic es: an d sele ct R FTOOLS. Posi tion t he cursor at Run Test and se lect i t. Th e So ftw are i s now lo adi ng.
58 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng R F T ool s Pr og ram Swept G ain This test meas ures the gain of a device by sweeping it over the specified freque ncy range.
Chapter 3 59 Ove rview of the Test Set’s Buil t -In Tools Usin g R F To ol s Pr ogr am Discre te Freq Insertion Lo ss This test meas ure s the loss of a ca ble or devic e a t a specifi ed frequency. This test i s the most a ccurate method for measuring i nsertion lo ss.
60 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng R F T ool s Pr og ram Swept Return Loss This t est radiates a test sig na l when testi ng antennas or cables with antennas a ttached to them. Verify that the lev el and fr eq uency span used f or the test cannot res ult in interferenc e to other nearby antenna s.
Chapter 3 61 Ove rview of the Test Set’s Buil t -In Tools Usin g R F To ol s Pr ogr am Esti matin g Ante nn a Ret urn Lo ss If you are measuring the return loss of an antenna connected to the end of a known g ood feed l i ne, you can d etermine the app roximate return loss of t he antenna by subtracting tw ice the line l oss.
62 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng R F T ool s Pr og ram Cable Faul t NOTE Test Signal Can C ause Interferenc e When testi ng cables attac hed to a ntenna s, tes t s i gnals w il l be r adi ate d. Veri f y that the signal used f or the tes t cannot resu lt in interf erence to another a ntenna.
Chapter 3 63 Ove rview of the Test Set’s Buil t -In Tools Usin g R F To ol s Pr ogr am Se le c ti n g Ca bl e Ty pe In the menu for this t est, you c a n enter the following information: • Cable length • Cable length uni ts • Pressing the knob toggles the selecti on between feet and meters.
64 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng R F T ool s Pr og ram Typical cab le f ault return loss measurement s. Return loss is a ratio of input p ower to ref lected power. F or example, i f 100 Watt s was applie d to a c able and 10 Watt s was returne d , the retur n loss i s 10 dB (10 l og (100/10)).
Chapter 3 65 Ove rview of the Test Set’s Buil t -In Tools Usin g R F To ol s Pr ogr am Replo t Da ta Fil es This uti l ity allo ws you to e a sily retri eve and display plots which w ere previousl y stored on an SRAM PC card. O ne or two pl ots may be displayed a t one time.
66 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng R F T ool s Pr og ram Cata lo g PC (Me m or y) C ar d This uti lity lis ts all the fi les contained on the P C card. The PC card that you want to catalog m ust be inserted p rior to s electing thi s test.
Chapter 3 67 Ove rview of the Test Set’s Buil t -In Tools Using the Code Domain Analyzer Usin g the Cod e Domain An al yzer The code d omain analyzer g raphically di s plays the p ower, phase, and timing of th e CDMA signal’ s 64 Walsh channel s .
68 Chapter 3 Overview of the Test Set’s Built-In Tools Using the Spectrum Analyzer Usin g th e Sp ectr um An alyzer Automatic Ca li br ati on During op eration, th e spectrum analy zer pauses for approximately 2 seconds every 5 minutes to r ecalibrate it self.
Chapter 3 69 Ove rview of the Test Set’s Buil t -In Tools Using the Spectru m Analyzer Selecti ng the S pectrum Ana lyzer’s Contr ols Menus Several levels of m enus are used to access the various control s associated with the spec trum analyzer (s ee " Spe ctrum A na lyz er Controls Menus" on page 69 ).
70 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng t he V ol t m et er a nd Au di o Fre qu e ncy Co unt er Usi ng t he Voltme te r and Aud io Freq ue ncy Count e r The v ol tmeter can be used to me a sure ac and d c voltages. T he input to the vol tm eter is determined by the AF An l In fi eld on the AF ANALYZER screen.
Chapter 3 71 Ove rview of the Test Set’s Buil t -In Tools Using th e O scilloscope (S cope) Using the O scilloscope (Scope) The built - in 50 k Hz osci l loscope p rovides • multiple tr iggering f.
72 Chapter 3 Overview of the Test Set’s Built-In Tools Using the Oscilloscope (Scop e) Sele c ting the Oscillo scope’s Input Step 1. Pres s Shi ft , then RF Anl ( AF Anl ) to sel ect the AF ANALYZER scr een. Step 2. Select the AF Anl In field. A list of choices a ppears.
Chapter 3 73 Ove rview of the Test Set’s Buil t -In Tools Using th e O scilloscope (S cope) Triggering the Oscillo scope You can control follow i ng trigger ing features of the osci lloscope: • Tr.
74 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng I B _U TI L P rog ram s Using IB_UTIL Programs Se e "Securing a Test Proc ed ure" on pag e 75 f or information about the SECURE_IT pr ogram. See "Clearing RAM" on page 76 for inf o rm at io n about the RAM_MANAG ER program.
Chapter 3 75 Ove rview of the Test Set’s Buil t -In Tools Secu ring a Test Proce dure Secu ring a Test Procedu re The password option for s ecuring a tes t procedure is accessed b y loading and running the SE CURE _IT ROM program. This program is accessed by running the IB_UT IL prog ram .
76 Chapter 3 Overview of the Test Set’s Built-In Tools Cleari ng RAM Cle ari ng R AM RAM can b e cleared using the RAM_ MA NA GE R progr a m in the Tes t Set’s ROM. This p r ogram clea r s all RAM, including any SAVE/RECALL reg isters sa ved to In ter na l RAM.
Chapter 3 77 Ove rview of the Test Set’s Buil t -In Tools Usin g the LIS TO PTS (l ist op tions ) Progr am Usin g the LISTO PTS (lis t opti ons ) Pr ogra m You can l ist t he options that ar e installed i n your Test Set ( i f any) using the LISTOPTS pr ogr am.
78 Chapter 3 Overview of the Test Set’s Built-In Tools Usi ng t he D E M O Pr ogr am Usi ng t he DEMO Progra m You can us e the DEMO program t o learn about the capabiliti es of th e Test Set . This pr og ram demonstra tes some of the m os t useful features of t he Test Set.
Chapter 3 79 Ove rview of the Test Set’s Buil t -In Tools Us in g the ST _P LT (sto re or pl ot) Pr ogr am Using the ST_ PLT (stor e or plot ) Pro gra m This progr am allows you to store a spectrum anal y zer, or oscillosc op e trace on PC card or to plot a st or ed trace f rom a PC card.
80 Chapter 3 Overview of the Test Set’s Built-In Tools Using the ST_PLT (store or p lot) Program Main Menu.
81 4 CDMA Measurements - Screens and Control Field s • “Aver a ge Power Measurement s ” on page 82 • “Channel P ower Measureme nts” on page 83 • “Rho Measur em ents” on pag e 84 • .
82 Chapter 4 CDMA Measurem ents - Screens and Control Fields Average Power M easurem ents Ave rage P ower Me asurem ents CDMA Mea sure m ents Avera ge Pow er Me asureme nts Avg Pwr Avg Pw r displays the a verage power lev el of all signals at the RF IN/OUT port.
Chapter 4 83 CDMA Measurem ent s - Screens and Control Fields Chann el Power Mea sure ments Channel Power Measu remen ts Channel Powe r Meas urement s Chan Pwr Channel power is the absolut e power leve l of the RF s ignal in a 1.23 MHz b andwidth c entered around the RF channel or tune frequency set ting.
84 Chapter 4 CDMA Measurem ents - Screens and Control Fields Rho M easuremen ts Rho Me asurements Rho Me asur em e nts Rh o Rho is a measure of CDMA wav eform quality w hi ch indicate s how wel l the .
Chapter 4 85 CDMA Measurem ent s - Screens and Control Fields Rho Measur em ents Rho Measurem en ts Freq uen cy E r r or Frequency error is displayed when the Rh o measurement is selected . Frequency er ror is the differ ence betwe en the bas e stati on’s transmitter frequency a nd the frequenc y you enter in th e Tun e Fr eq field .
86 Chapter 4 CDMA Measurem ents - Screens and Control Fields Rho M easuremen ts Rho Me asurements Figure 4- 2 Time Offse t Main Menu.
Chapter 4 87 CDMA Measurem ent s - Screens and Control Fields Rho Measur em ents Rho Measurem en ts Carrier Fe ed thro ugh Carrier f eedthrough is di splayed when the Rh o m easurement i s selected. Carrier feed through is a comm on cause of b ad rho measurements.
88 Chapter 4 CDMA Measurem ents - Screens and Control Fields Error V ector M agnitude (EV M) Mea surements Error Vector M agni tude (EV M) Me asurem ents Error Ve c tor Magnit ude (EVM) Meas urements .
Chapter 4 89 CDMA Measurem ent s - Screens and Control Fields Code Doma in Measu remen ts Code Doma in Measu remen ts Code D omain Measure ments The foll ow ing measurem ents are displa y ed on the CODE DOM ( c ode domain analy zer) screen: p ower, fast p ower, ti m ing and phase.
90 Chapter 4 CDMA Measurem ents - Screens and Control Fields Code Domain Measure m ents Cod e Domain Measure ments Code Do main Power ( Power) Code dom a in power di s plays the pow er in ea ch of th e 6 4 Walsh channels, rel a tive to the total power inside 1.
Chapter 4 91 CDMA Measurem ent s - Screens and Control Fields Code Doma in Measu remen ts Code Doma in Measu remen ts Fast Power Fast power is a fa s t er method of measuring code dom ain power.
92 Chapter 4 CDMA Measurem ents - Screens and Control Fields Code Domain Measure m ents Cod e Domain Measure ments Code D omain Ph ase (P has e) Code dom a in phase is the diff er ence in pha se between the pi lot and other code channels ( W alsh co d es) within the same forward CD MA channel.
Chapter 4 93 CDMA Measurem ent s - Screens and Control Fields ADCfs or ADC F S Amplitude Contr ol Fie lds for CDMA Meas ur ement s ADCf s or ADC FS ADCfs indicates how close the meas ured power level is to t he maximum allowed i np ut level for the ana lyzer’s Analog - to-Digit a l Convert er (A DC).
94 Chapter 4 CDMA Measurem ents - Screens and Control Fields Analyzer (CDMA analyz er) Anal yzer (code domain analyzer) Anal yze r (C DM A ana lyze r) The An al yzer fiel d controls thr ee functi ons: • Arm Me a s arms the CDMA anal y zer. The CDMA analy zer needs to be armed only when Sing le (s ee below) is s elected.
Chapter 4 95 CDMA Measurem ent s - Screens and Control Fields Anl Dir Auto Zero Anl Dir This fi eld is used to select the typ e of sig na l (f orward or r everse li nk) to ana lyz e. • Fwd sets the an a lyzer to l ook for ba s e station t ransmitter d a ta (forw a rd li n k ).
96 Chapter 4 CDMA Measurem ents - Screens and Control Fields Car FT Chn Pwr C al Car FT This f iel d i s a m easurement d i spl ay f i eld. See "Carrier F eed thro ugh" on page 87 for more i nformation ab out this measur em ent.
Chapter 4 97 CDMA Measurem ent s - Screens and Control Fields Controls Co n t r ols Control s Code domain a nalyzer se ttings are arr a nged into several menus tha t are access ed using the C on tro ls field. T he control g roups are: • Main accesses t he RF In /Ant , Tune Fr eq (or R F Cha nnel ) , Meas ur eme nt , and Anal yz er fields.
98 Chapter 4 CDMA Measurem ents - Screens and Control Fields CW RF Path Data Rate CW RF Path This fi eld selec ts the path for the RF gener a tor’s s i gnal. • Bypa ss d isables the IQ modulator. This mode is us ed when generating s tandard AM, FM, or CW signals in the Test Set.
Chapter 4 99 CDMA Measurem ent s - Screens and Control Fields Data Source Data Source Data Sour c e This fiel d selects where the baseband q uadrature sp r eader get s its data.
100 Chapter 4 CDMA Measurem ents - Screens and Control Fields Even Sec In Gain Even Se c In This fi eld control s the interna l connection of the EVEN SECOND SYNC IN connector to the C DMA analyzer. • When En ab le is sel ected, signa l s applie d to the EVEN SECOND SYNC IN connec tor synchronize the timing c ircuits.
Chapter 4 101 CDMA Measurem ent s - Screens and Control Fields Gen Di r Gen Mo de Gen Dir This fiel d sets the link directi on of the CD MA signal. • Fwd (forward) s ets the CDMA generator to produce QPSK modulation to imita te a base stati on.
102 Chapter 4 CDMA Measurem ents - Screens and Control Fields Gen S pecia l Input A t te n Gen Speci al Generator s pecial m odes change how IQ modulated signals are gener a ted. • Norm al set s the CD MA generator and CDMA a nalyz er to cr eate and analyze si gnals with s ta ndard rotati on.
Chapter 4 103 CDMA Measurem ent s - Screens and Control Fields Input Port Meas Intvl Input Port This fiel d selects whi ch Test Se t port to us e as t he RF input. T his fiel d is not dis played when measuring av erage power, sin ce you mus t use the RF IN/OUT port to m easure a v erage power.
104 Chapter 4 CDMA Measurem ents - Screens and Control Fields Measur ement Num A vgs Measurement This fi eld control s the type of code domai n m easurement to make: power, timing, or p hase. It a lso control s the measurement "mo d e." • Sing le i s used when you want to make one m easurement.
Chapter 4 105 CDMA Measurem ent s - Screens and Control Fields Of s Trn sf er Outp u t P or t Of s T r n s fe r This fiel d transfer s the time of fset value f r om the tim e offset measurement (d i splayed i n TmOfs ) to the Ti me Offs et field automaticall y.
106 Chapter 4 CDMA Measurem ents - Screens and Control Fields PN O ff se t Pwr Gain PN Offs e t Use this field to enter the P N sequence of f set index for your base stati on. Each whole of fset is equal to 64 c hips (= 52.08 µ s). Fr act i o n al values are rounded off , and can b e entered, in increments of 0.
Chapter 4 107 CDMA Measurem ent s - Screens and Control Fields Pwr Int v l Pw r Zero Pwr Intvl This fiel d determines the length of the data bloc k when measuring average p ow er. The data block is a ti me record over w hich corre l ated measurements a r e computed.
108 Chapter 4 CDMA Measurem ents - Screens and Control Fields Qual Event Qual Event Qual Event Thi s fie l d sele ct s a t ri gg e r qu a li fie r. Th e t ri gg er qu a lif ier se rv es as a precurs or to the CD M A analyzer trigger ev ent.
Chapter 4 109 CDMA Measurem ent s - Screens and Control Fields RF Ch annel RF Ge n Fre q RF Channel The RF Ch an ne l fi eld is d i splayed when th e RF Di spla y field on the INSTRUMENT CON FIGURE screen i s set to Chan . This fiel d displays t he current c hannel number.
110 Chapter 4 CDMA Measurem ents - Screens and Control Fields RF In /A n t Thre sh old RF In/ An t This fi eld selec ts the Test S et’s RF input. CAUTION T he maximum safe leve l into the ANT IN connector is 60 mW . Exceeding this level c ould cause permanent damage to the Test Set .
Chapter 4 111 CDMA Measurem ent s - Screens and Control Fields Time Offset TmO fs Time O ffset This fiel d allows y ou to manually enter a time offs et. To obt a in a value to enter in this f ield you m us t make a t least one of the foll ow ing measurements.
112 Chapter 4 CDMA Measurem ents - Screens and Control Fields Tr ig Even t Tune Fr eq Trig E vent This fi eld dete r mines when the trigger event to the CDMA analyzer occurs. When the sele cted trigger in this fi eld is quali fied by the selec tion in the Qu al E vent field, the CD MA analyzer is triggered.
Chapter 4 113 CDMA Measurem ent s - Screens and Control Fields Wa l sh Ch a n Wa ls h C ha n Walsh C h an This field sele cts the Walsh channel to move the marker to. The marker can be moved b y either en ter ing the Wal s h channel number using the keypad, or b y using the c ursor -contr ol knob.
114 Chapter 4 CDMA Measurem ents - Screens and Control Fields Walsh Chan Walsh Ch an Main Menu.
115 5 Analog Measurements - Screens and Cont rol Fields • "AC Level M easur ement" on page 116 • “AM Depth Mea s urement” on p age 116 • “AF Freq Mea s urement” on pag e 117 .
116 Chapter 5 Analog Measurem ent s - Screens and Control Fields AC Level Meas urement AM De pth M easurem ent Analog Measureme nts AC Level Measurement The ty p e of measure m ent shown is dep endent on the AF A nl In sett ings. AC Lev el is disp layed when the AF An l In fi eld is set to SS B Demo d , Aud io I n , Ex t Mo d , or Au dio Ou t .
Chapter 5 117 Analog Measurem ent s - Screens and Control Fields AF F req M easuremen t DC Level Measu rement AF Freq Measu rement The AF freque ncy measurement is the audio f r equency of the signal present at the input select ed in the A F Anl In field (on t he AF ANALYZER screen).
118 Chapter 5 Analog Measurem ent s - Screens and Control Fields Distn (Distortion) M eas urement FM Deviation Measur ement Distn (Dist ort ion ) Measurement This measur em ent fiel d displays t he percent of distortion f or an audio signa l tone.
Chapter 5 119 Analog Measurem ent s - Screens and Control Fields Frequ ency M eas ureme nt Freque ncy E rror M easu remen t Frequency Measurement This measure m ent field di splays the cent er frequency the signal b eing measured. Operati ng Considerat ions This measure m ent cannot be us ed for measuring CDMA signals; use the CDMA analyzer .
120 Chapter 5 Analog Measurem ent s - Screens and Control Fields TX Power M easu rem en t TX Power M easur ement TX Power M e asure ment Transmitter power measures RF p ower at the RF IN/OUT port. Operat ing Considerations Only the RF IN/OUT port ca n b e used f or measuring TX p ow er.
Chapter 5 121 Analog Measurem ent s - Screens and Control Fields FM Deviation Measu remen t AF Freq (Audio Frequency) Measu remen t FM D eviation Measurement This is the default s etting for this measurement fiel d. The FM de viation measurement is the frequency d eviation of the carrier.
122 Chapter 5 Analog Measurem ent s - Screens and Control Fields SINAD Measurement SNR Measur ement SINAD Measuremen t SINAD is the measure of the ratio of the signal+noi se+distorti on to the noise+d istortion pr oduced at the outp ut of a r eceiver tha t is the r esult of a m od ulated s ignal input.
Chapter 5 123 Analog Measurem ent s - Screens and Control Fields AF Anl In AF Cn t Gate Control Fields for Analog Measurements AF Anl In The audio frequency analyzer input s elec ts the input for the analyzer. When selec ted, this fiel d displays a list of choices.
124 Chapter 5 Analog Measurem ent s - Screens and Control Fields AFG e n1 Fr eq AFG e n1 To AFGen1 F req This fi eld set s the frequen cy for the f irst audio frequency sinewave gener a tor.
Chapter 5 125 Analog Measurem ent s - Screens and Control Fields AFG e n2 Fr eq AFG e n2 To AFGen2 Freq This fiel d sets the f requency f or the secon d audio f r equency sinewave generator .
126 Chapter 5 Analog Measurem ent s - Screens and Control Fields Ampli tude Atten Hold Amplit ude This fi eld adjusts the amplitud e of the RF gener ator.
Chapter 5 127 Analog Measurem ent s - Screens and Control Fields Au dio In Lo Auto/Norm Audio In Lo This fiel d sets the AU DIO IN LO connector ’s state.
128 Chapter 5 Analog Measurem ent s - Screens and Control Fields Auto Zero Co nt/ Sin gle Auto Zero This fi eld is d i splayed f or average p ower measurements. Auto is used to automatica l ly zero the TX power meas ur ement periodi cally during operation.
Chapter 5 129 Analog Measurem ent s - Screens and Control Fields De -E m p G a in De-Emphasi s De-E mp Gain De-emphasis g a in displays and select s the desired AF analyzer d e- e mp ha si s a m p li fi e r g ai n . See the "G a in Cntl" f ield on page 134 for more in f o rm at io n .
130 Chapter 5 Analog Measurem ent s - Screens and Control Fields Detector Detector Detector This set ting sel ec ts the ty pe of detector used when measuri ng and displ a ying AF signa l levels. Detector T ypes • RMS displays the root mean sq ua re (rms) v alue of s ignals.
Chapter 5 131 Analog Measurem ent s - Screens and Control Fields Ext Loa d R Fi lter 1 Ext Load R External load resistan c e is used to calculat e and display AF p ow er. Power is ca lculated usi ng the voltage measured at t he AUD IO IN connections a nd the resi stance value y ou enter into this fiel d .
132 Chapter 5 Analog Measurem ent s - Screens and Control Fields Fi lte r 2 Fi lte r 2 Filter 2 This fi eld selec ts an audio f requency fil ter which can be us ed to condit ion the audio s ignal befor e it is a nalyzed by the a ud io freque ncy analyzer.
Chapter 5 133 Analog Measurem ent s - Screens and Control Fields FM Coup li ng Freq (mark er) FM C oupling This fiel d alters the FM modulator to a llow DCFM from int er nal and external m odulation sour c es. This field also s elects a c or dc c oupling between the RF generator’s f requency modulat or and the AN ALOG MODUL ATION IN connector.
134 Chapter 5 Analog Measurem ent s - Screens and Control Fields Gain Cntl G ain C n t l Gain C ntl AF anal y zer gain c ontrol speci fies whether the AF analyzer’ s gain sett ings are contr olled automatic ally by AF aut or anging ( Auto ) , or by manual c ontrol ( Hold ).
Chapter 5 135 Analog Measurem ent s - Screens and Control Fields IF F ilte r Input Atten IF Filt er This fiel d selects the desired IF filter b a ndwidth for modulated sig na ls bei ng ana l y zed .
136 Chapter 5 Analog Measurem ent s - Screens and Control Fields In p u t Ga in In p u t P o rt Inpu t Gain This fi eld dis p lays and selec ts the gain o f the AF anal yzer’s input amplif i er. The choices are 0 d B, 20 dB, or 40 dB. Refer to the Ga in Cntl fiel d more inf or mation.
Chapter 5 137 Analog Measurem ent s - Screens and Control Fields Inte rnal Lev el (di v) Inter nal This fiel d selects the trigger sour ce. • Inte rn al uses the si g nal being d isplayed f or triggeri ng. • Ext (T TL) uses the EXT SCOPE TRIGGER I N PUT for tri gg ering.
138 Chapter 5 Analog Measurem ent s - Screens and Control Fields Lvl (ma rker) Lv l (marker) Lvl (marker) This measur em ent fiel d displays t he signal level of the s ignal at th e current marker position on the s p ectrum a nalyzer. ( See Fi gu re 5- 1 on page 133 .
Chapter 5 139 Analog Measurem ent s - Screens and Control Fields Marke r T o P eak+ Marker To (spectru m an alyzer) Marker To P eak + Peak + causes the marker to mo ve t o the maximum va lue of the av era ge level meas ur ed on the di splay.
140 Chapter 5 Analog Measurem ent s - Screens and Control Fields Mo d In T o No Pk/Avg Mod In To This modulation input field def ines how an ex ternal modulatio n source is us ed with the RF generator.
Chapter 5 141 Analog Measurem ent s - Screens and Control Fields Normalize Notc h Fre q Norm alize This area p erforms thre e display operatio ns: • Save B saves the currently - displayed trace for the A-B operati on. • A on ly provides a conti nuously- up dated dis play (the “normal” mode of o p eration).
142 Chapter 5 Analog Measurem ent s - Screens and Control Fields Notch Gain Of fs et Fre q Notch G ain This field disp lays and sele c ts the g ain of the AF analyzer’ s notch fi lter amplif i er. T his amplifi er i s only us ed for maki ng SINAD a nd distor tion measurements.
Chapter 5 143 Analog Measurem ent s - Screens and Control Fields Ou t p ut P o rt Pk D et To Out pu t Po r t This fiel d selects the RF generator ’s output port . Higher RF gene rator levels a re availabl e at the D UP LEX OUT port t ha n at the RF IN/O UT po rt.
144 Chapter 5 Analog Measurem ent s - Screens and Control Fields Port/Sweep P ort/Sw eep Port/S w eep This contr ol per f orms two functi ons: • The upper f ield specif i es the out put port of the tracking generator.
Chapter 5 145 Analog Measurem ent s - Screens and Control Fields Posi tion Posi tion Posi tion This fiel d indicates t he number of s cale divisi ons from the l eft s ide of the scr een to the mark er . Use the D ATA ENTRY keys or cursor-control knob to move the marker to any p oint on the d ispla yed signal.
146 Chapter 5 Analog Measurem ent s - Screens and Control Fields Ref Level Reset Ref Le v el Referenc e level sets the amplitude r eference l evel f or the top line of the displ ay. All signal s displayed are referenced to this line. Operat ing Considerations The uni t-of-measure for the refer ence can be c hanged as needed .
Chapter 5 147 Analog Measurem ent s - Screens and Control Fields RF Ch annel RF Cn t Gate RF Channel The R F Ch an ne l fi el d is disp layed on the screens l iste d below when the RF Di spl ay field on the I N STRUME NT CO NF IGURE screen is set to Chan .
148 Chapter 5 Analog Measurem ent s - Screens and Control Fields RF Ge n Fr eq RF In/Ant RF G en Freq This fi eld set s the RF gene r ator’s f requency. This fi eld is d i splayed on the screens l isted bel ow when the RF Disp la y field on the INSTRUM ENT CONF IGURE sc reen is set to Freq .
Chapter 5 149 Analog Measurem ent s - Screens and Control Fields Scope To Scope To Sco pe T o This fiel d selects the signal sour ce for the o scillos c ope. This a llows you to bypass c ertain secti ons of the AF analyzer’s circuit r y when viewing and measuring a s ig nal.
150 Chapter 5 Analog Measurem ent s - Screens and Control Fields Sensitivity (RF analyz er) S ens itivity (spectrum ana lyzer) Sensitivity ( RF an alyzer) RF anal y zer sensit ivity adds a b out 6 dB of sensitivity for the ANT IN port w hen Hi gh is s elected and th e I npu t At te n field i s set to 0 dB.
Chapter 5 151 Analog Measurem ent s - Screens and Control Fields Settling Sp an Se ttl ing This fiel d selects the settli ng time for ma king AF meas urements. Lower frequency si gnals require a dditional s ettling ti me ( Sl ow ). Hi gher frequency m ea surements requi re less sett ling time ( Fast ).
152 Chapter 5 Analog Measurem ent s - Screens and Control Fields Speake r ALC Speak er Vo l Spea ker ALC Speaker a utomatic l ev el contr ol enables/d i sables the AL C function f or the instrument’s inter na l speaker. When On is selec ted, the s p eaker vol ume is indepe nde nt of the si gnal level being measured.
Chapter 5 153 Analog Measurem ent s - Screens and Control Fields Squelc h S que lch Sque l ch This sett ing deter m ines the squelch o p eration w hen demodulating F M , AM, or SSB s ignals. T hree se ttings are avai l able: • Pot uses the f r ont-panel SQ UEL CH knob for squel ch level adjus tm ent.
154 Chapter 5 Analog Measurem ent s - Screens and Control Fields Tim e Track/Fi xed Time This measur em ent displa y s the ti me elapsed fr om the trig g er point to the c urrent marker pos i tion. The Ref Set functi on can be us ed with this m easurement to display ti m e rel a tive to a specific pos ition.
Chapter 5 155 Analog Measurem ent s - Screens and Control Fields Trig-Delay Tri g-De lay Trig-Delay The trig ger delay is used to speci f y the ti me relationship b etween the tri gg e r an d displ ay e d sig n al . • Posi ti ve values dela y the measurement t rigger by a specific period.
156 Chapter 5 Analog Measurem ent s - Screens and Control Fields Tune Fre q TX Pwr Meas Tune F req This fi eld is d i splayed w hen the R F Disp lay fiel d on the INSTRUMENT CONF IGURE screen is set to Freq . RF anal y zer tune f requency s ets the center frequency for the R F signa l to be analyzed.
Chapter 5 157 Analog Measurem ent s - Screens and Control Fields TX P wr Ze ro TX Pw r Ze ro TX Pwr Zero The transmitter power z e ro function estab lish es a 0.
158 Chapter 5 Analog Measurem ent s - Screens and Control Fields Ve rt /d iv Ver t Offset Vert/d iv Verti cal sensitivi ty sets the vertical amplitude per division. Operat ing Considerations The v a lue for thi s field i s selec ted from a l ist of choic es.
159 6 Configuratio n - S creens and Control Fiel ds • "Confi g uring t he Instrument" on p age 160 • "Setting the Date and T ime" on page 1 60 • "Changing the Beeper’s.
160 Chapter 6 Configuration - Screens and Control Fields Setting the D ate an d Ti me Turning O ff User Messa ges Co nfigur ing t he I nstrume nt Setti ng the Date and Time The Tes t Set has a b uilt-in cloc k that keeps tr a ck of t he date and tim e.
Chapter 6 161 Configuration - Screens and Control Fields Printing a Screen Printing a Screen Configu rin g for Pr int in g A Scree n Printing a Scre en To Print A S creen’s Cont e nts St ep 1. Connect a p rinter t o the appropriate c onnector (SERI A L 9, PARALLEL 15, HP-IB) .
162 Chapter 6 Configuration - Screens and Control Fields Abort Prin t An t enna In Cont rol Fiel ds on th e Config urati on Scr eens Abor t Print Selec t this fi eld to int er rupt the p r inting j ob in progress. Abort Pri nt is not directly p rogrammable over the HP-IB.
Chapter 6 163 Configuration - Screens and Control Fields Base F req (User Defined) Base F req (User Defined) Base Fre q ( User Defined) The base frequency fiel d sets the RF generator refer ence for channel 0 (zero) w hen the RF Cha n St d field is s et to USER -DEF , and the RF Disp la y field is set to Chan .
164 Chapter 6 Configuration - Screens and Control Fields Beeper Chan Space (User Defined) Beep er This fi eld changes t he audio beep er volume by selecting the d esired lev e l fro m a li st of cho i ces (O ff, Qu i e t, Lo u d ). T h e be e p e r al wa ys b eep s when the instrument i s turned on, r egardless of this setti ng.
Chapter 6 165 Configuration - Screens and Control Fields Data Leng th Display User Message s Data Length This fiel d specifies t he number of bits used for each word of serial data when us ing the serial port. This setti ng is reta ined when the instr um ent is turned off.
166 Chapter 6 Configuration - Screens and Control Fields Duplex O ut Ext Ref In Duple x O ut This fi eld is us ed to i ndicate lo sses or g ai ns bet ween the DUP LEX OUT port a nd the device- under-test. • Enter a positive value to ind icate a gai n (such as a n a mplifier ga in).
Chapter 6 167 Configuration - Screens and Control Fields FF a t End: Firm ware FF at E nd: This fiel d is use d to specif y if yo u w ant the p r inter to m ake a fo r m feed (blank page) at the end of printing.
168 Chapter 6 Configuration - Screens and Control Fields Flow Co nt rol Flow Co nt rol Fl ow C ontrol The flo w control f ield is us ed when sendi ng or recei ving serial data. • None disabl es the Xon/Xoff f unction. • Xon/ Xo ff lets the Test Set “ talk/listen” to the tr ansceiver to alter the rate of the data b eing sent.
Chapter 6 169 Configuration - Screens and Control Fields Frame Clock Output (Gen)-(Anl) (User Defined) Frame Cloc k Out put This fiel d selects the frame cloc k signal to send to the FRAME CLOCK OUT c onnecto r.
170 Chapter 6 Configuration - Screens and Control Fields HP-IB Ad rs In st E ch o HP-I B Ad rs This fi eld is us ed to displa y and change the H P-IB address of the Test Set. Op era ti ng C o ns id era ti ons The addr ess can be set from 0 to 3 0 by using the DATA keys, or b y pushing a nd then t ur ning the c urso r-contr ol knob.
Chapter 6 171 Configuration - Screens and Control Fields Li nes/ Pa ge: Notch Coupl Lines/ Page: This fiel d is use d to specif y how many lines are printed per page. Screen (s) W h ere Fie ld is P resen t PRINTER CONF IGURE Mode This fiel d sets the HP-IB operating mode.
172 Chapter 6 Configuration - Screens and Control Fields Opt CDMA TB Print Title: Opt CDMA TB This contr ol is p rovided f or future enha nc ements. It m us t be s et to Inte rn al until opt i ons are avai lable.
Chapter 6 173 Configuration - Screens and Control Fields Range Hold Rang e Hold Ra nge H ol d These fiel ds enable/dis a ble sever a l autoranging and autotuning routines. Auto A ll enab l es these r outines, providi ng automatic a djustment when making AF or RF measurements.
174 Chapter 6 Configuration - Screens and Control Fields Ref Select Ref S e lect Re f Se le ct This fi eld selec ts the timebas e reference s ignal to use for generat ing an d ana lyz ing s igna ls. • Auto automati c ally s el ects an ex ternal ref er ence if a signal of suffici ent level is detected at t he EXT REF IN.
Chapter 6 175 Configuration - Screens and Control Fields RF Ch an Std RF Chan S td RF Chan Std Use the RF c hannel standard f ield to s elect the channel standard f or the radio- under-test.
176 Chapter 6 Configuration - Screens and Control Fields RF Di s play RF Gen Volts RF Di sp la y This fi eld selec ts the format f or entering the RF generator ’s and RF analyzer’ s frequencie s: • When Fr eq i s selec ted, you ente r the RF genera tor’s and the R F analyzer’s f requencies d irectly usi ng the keypad or knob.
Chapter 6 177 Configuration - Screens and Control Fields RF In/Out RF In/O ut RF I n / Ou t This fiel d is use d to indic a te losses or gains b etw een the RF IN/O U T port and t he device-under- test. • Enter a posit ive value to i nd icate a gain (suc h a s an ampl ifier gain).
178 Chapter 6 Configuration - Screens and Control Fields RF Level Offset RF Offset RF Lev el Off set This fi eld enables/d isables t he RF level offsets enter ed in the RF In/O ut , Du plex O ut , a n d Ant enna I n fi elds b elo w i t.
Chapter 6 179 Configuration - Screens and Control Fields Save/Reca ll Save /Recall Save/ Recall This field specifie s which m emory device the Test Set accesses when the save and rec all funct ions are used. • Inte rn al is a secti on of inter na l RAM.
180 Chapter 6 Configuration - Screens and Control Fields Se r ia l B a u d Ser ia l No. Ser ial Ba ud This fi eld selec ts the baud rate for seri al communications w hen using the s er ial ports . Selecti ng this fi eld displays a list of b a ud rate c hoices.
Chapter 6 181 Configuration - Screens and Control Fields St op L eng th Total RAM Stop Le ngth This fiel d specifies t he number of stop bits ( 1 or 2) used for seri al communications w hen using the serial por t. This setti ng is maintai ned after the i nstrument is tur ned off.
182 Chapter 6 Configuration - Screens and Control Fields Total RAM Tot al RAM Main Menu.
183 7 Connectors Al ph ab et ica l Li st in g of "Connector s " on pa g e 184 Main Menu.
184 Connectors 10 MHz REF O UT ANALOG MODULATION IN Conne ctors 10 MHz R EF OUT This connec tor fur ni shes a 10 M Hz reference f or external instruments. Op era ti ng C o ns id era ti ons NOTE The ref er ence outp ut frequency is always 10 MHz, indepe nd ent of the selected i nput referen c e frequenc y .
185 Connec tors ANT IN ANT IN ANT IN The antenna i nput is used for analyzing low-power RF sig na ls ( ≤ 60 mW ), a nd is typic all y used for of f-the- a ir meas urements.
186 Connectors AUDIO IN AUDIO IN AUDIO IN Two connector s are us ed to input a ud io si g nals to the AF analyzer: • HI is the main audio s ignal input connection.
187 Connec tors AUDIO OUT BASEBAND OUT (I and Q) AUDI O OU T This port is us ed to output s ignal s f rom audio frequency generators 1 an d 2. Opera ting Co n sidera tions The output l evel is s et by the AF gene rators and is not affect ed by the front-pa nel VOLUME control.
188 Connectors Chassis Groun d DUPLEX OUT Chassis Ground The chass is ground ter m inal provi d es a gener a l chassi s connection. CHI P C LOC K 1 .2288 MH z O U T Thi s ou tpu t pro vide s a 1.22 88 M Hz (CD MA chi p ra te) squ a re w ave with a 50% duty cycle.
189 Connec tors EVEN SECOND SY NC IN EXT S COPE TRI G IN EVEN SECO ND SYN C IN This port is an input f or the even s econd cl oc k from the b ase station under tes t. A positi v e edge on this connector s tarts two timers. One timer, a f ter re a ching termina l counts, s ta rts CDMA frame clo cks.
190 Connectors FRAME CLOCK OUT HP -IB FRA ME C LOC K O UT This o utp ut provides an external connection to several i nternal clocks. The clo cks are selected using the Fr am e Cl oc k Out pu t field on t he INSTRUMENT CONFIGU RE scr een. T he fra me clock s ele ctions a re as foll ows: • 2 0.
191 Connec tors MEMORY CARD S lot PARALLEL PORT 1 6 MEMORY C ARD Slot This front -panel opening is where PC c a rds are i nserted. PA RALL EL POR T 15 This port is used wit h printers requi ring a paral l el inter face when printi ng screen images or test r esults.
192 Connectors RF I N/OUT SCOPE MONITOR OU TPUT RF IN/O UT This Type-N co nnection is used to output sig nals from the RF generator and to i nput RF sig na ls. CAUTION Overpo w er D a m age — Refer to the Test Set’ s connec tor panel for maximum inp ut power level.
193 Connec tors SERIAL PO RTs 9, 10, and 11 SERI AL PO RTs 9, 10, and 1 1 SERIAL P ORTs 9, 10, and 11 The serial ports are us ed to i np ut and outp ut serial data for entering programs, p rinting tests results a nd screen i mages, and send i ng test results to a connecte d controll er , disk d r ive, or terminal.
194 Connectors TRIG G ER QUALIFIE R IN VIDEO O UT TRIGGER QUALIFIER IN This i nput is acti ve when an exter na l trigg er qualif ier is sele cted with the Qu al Even t field on the CDMA ANA LYZER and CODE DOM scre ens .
195 8 Accesso ries, Ma nuals , Supp ort Main Menu.
196 Chapter 8 Accessories, M anuals, Support Mo dific a tio ns Modific ation s The foll owing i nfo rmation c an be found i n the HP 8935 Assembly Level Repair Manu al: • Hardware U pgra des/ Modifi.
Chapter 8 197 Accessories, M anuals, Support Accesso ries Access ories Table 8-1 Accessories External Moni tor The CRT’s Video Output driv es a multisync m onitor at 19.2 kHz (analog) . Examples of thi s type of m onitor i nc lude the E lectr ohom e ECM 1410-DMS 14-i nc h color mo nitor and the EV M 1242-P4 V ID 12-inch m onoc hrome monitor.
198 Chapter 8 Accessories, M anuals, Support Accessories Te st Soft war e The Radio T est Software p erforms aut om ated tests on radios used i n vario us radio c ommunication system s . Each test package is contained on a n in divi dual m em ory c ard .
Chapter 8 199 Accessories, M anuals, Support HP S upp ort fo r Y our Ins tr ume nt HP Su pp ort fo r Your Ins tr ume nt Getti ng He lp If y ou have prob lems using thi s Test Set, and ca nnot find the.
200 Chapter 8 Accessories, M anuals, Support HP S u ppor t for You r I ns tr um e nt Cus tomer Trai ning Hewlet t- Packard offer s custo m ers a variety of training m aterials a nd cl a sses that ex p lain t he theory and appli cations of m any HP products.
Chapter 8 201 Accessories, M anuals, Support HP S upp ort fo r Y our Ins tr ume nt Asia Sales an d Servic e Hewlet t -Pa c kard Asia Ltd. 22-30/F P eregr ine T ower Lipp o Center 89 Queen sway , Central Hon g Ko ng G.
202 Chapter 8 Accessories, M anuals, Support HP S u ppor t for You r I ns tr um e nt Main Menu.
203 9 E rror M essages Main Menu.
204 Chapter 9 Error Messages General Informati on About Error Messa ges Ge neral I nformat ion A b out E rror M essage s Info r mation concer ning error mes s ages displa yed by the Test Set may be fo.
Chapter 9 205 Error Mess ages Gener al Informa tion A bout E rror Message s Ne ga t i ve Nu m be red E r ro r M e ss a ge s Negative number s preceding the error messages text corres p ond to the error cond itions outlined i n the St andard Commands for Programmabl e In strum e nts (SCP I).
206 Chapter 9 Error Messages General Informati on About Error Messa ges HP-I B Erro r Messag es HP-IB Er r or Messages a re associated w ith HP-IB oper ation.
Chapter 9 207 Error Mess ages Gener al Informa tion A bout E rror Message s The Me ssage Di splay During ins tr ument opera tion, various m ess ages may appea r on the Test Set’s display. Prompt-ty pe messages generally appear on the first line of t he Test Set’ s displ a y.
208 Chapter 9 Error Messages General Informati on About Error Messa ges Te xt On ly Er ro r Me s sa ge s Operatio n err ors generally occur when you try to do something the Test Set was not designed to do.
Chapter 9 209 Error Mess ages Gener al Informa tion A bout E rror Message s • Cal file ch e c k s u m in co rr ec t - in it ia li zin g file . This error us ually occur s after cha ng ing the T es t Set’s firmware ROM’s. It is not a pr oblem in tha t instance, b ut should no t re-appear d ur ing subsequ ent operation o f the Tes t Set.
210 Chapter 9 Error Messages General Informati on About Error Messa ges Main Menu.
Index Index 21 1 - - - - meaning of, squelch , 153 meaning of, TX power measurem ent , 36 meaning of, TX power measurem ents , 120 Symbols # of Fram es dat a so ur ce , 99 % delta ke y , 26 % key , 26 +/ - ke y , 30 Numerics 10 MHz REF OUTPUT connector , 184 16 x CHI P CLOCK connector , 184 19.
212 Index Index A Abort Print f ield Pr i nte r Confi gure s cre en , 162 abort prin ting , 161 ac c oupling input , 133 ou tput , 127 AC level pea k de te c to r , 14 3 AC Level field AF Analy z er s.
Index Index 21 3 des cri ptio n , 185 f o r of f- th e -a i r me a s u r em ent s , 136 f or R F m e as ur em ent s , 136 gain at , 16 2 in p ut at te nu a tio n , 13 5 loss at , 162 sensitivit y , 15.
214 Index Index C cable f ault measure ments , 62 cal i bra t ion ch annel power measure ments , 96 spec t rum an aly ze r , 68 CarFT f ield Code D om ain An aly z er scr een , 87 , 96 carr ier feed t.
Index Index 21 5 SCOPE MONITOR OUTPUT , 192 SERIAL PORT 10 , 193 SERIAL PORT 11 , 193 SERIAL PORT 9 , 193 TRIGGER Q UALIFIER IN , 194 VIDEO O UT , 194 Cont /S ingle fi eld Oscillos co pe screen , 128 .
216 Index Index E Eb/No , 101 EEX ke y , 30 em f v ol t a g e , 176 Error Mess age key , 25 erro r messag es , 204 IBASIC echo , 170 oper ation , 208 erro r vect or magnitud e.
Index Index 21 7 G gain automa tic co ntrol , 13 4 between ANT IN and devi ce-under- test , 162 between D UPLEX OU T and devi ce-under- test , 166 between RF IN/OUT and devi ce-under- test , 177 de- e.
218 Index Index I I BASEBAND OU T connector , 187 I/O Con fig k ey , 25 I/ O Configur e scr een Data Le ngth fi eld , 165 Flow Contro l fiel d , 168 HP-IB Address field , 170 IBASIC Echo field , 170 I.
Index Index 21 9 J JTACS , 17 5 K k1 th rough k5 keys , 51 k1’ through k3’ keys , 51 keyboard ext ernal , 180 keys % , 26 % delta , 26 +/- , 30 AF Anl , 25 Assign , 52 Avg , 46 CDMA Anl , 25 CDMA .
220 Index Index L level ac , 37 dc , 38 osci llosco p e , 13 8 refe renc e for spect rum analyzer , 146 Level (d iv) fi eld Osci ll oscop e scree n , 137 limi ts in di cat o rs , 43 pas s/f a il , 43 .
Index Index 22 1 Mo del f ie ld Printer Conf igure scr een , 171 mo dul ati on exter nal A M , 140 exter nal, FM , 140 exter nal, input , 140 input , 140 input, coupl ing , 133 OQP S K , 101 QP SK , 1.
222 Index Index Time/di v field , 154 Trig-Dela y field , 155 Ve rt Of fs et f i eld , 15 8 Ve rt /d iv fie ld , 158 out p ut coupl ing , 127 RF , 143 , 144 tra c ki ng g e ner a tor , 144 Output Port.
Index Index 22 3 Q Q BASEBAND OUT c onnector , 187 QPSK m odula tion , 101 Qual Event f ield CDMA Analyz er screen , 10 8 Code Domain Anal yzer screen , 108 R rad io tes t s of tw ar e , 198 RAM back .
224 Index Index ou tput , 144 ou tpu t port , 143 RF Gener ato r sc reen AF Freq field , 117 AFGen1 Fr eq field , 124 AFGen1 To field , 124 AFGen2 Fr eq field , 125 AFGEN2 To field , 125 AM Depth f ie.
Index Index 22 5 SERIAL PORT 11 connect or , 193 SERIAL PORT 9 connector , 19 3 serial port pin assi g nme nts , 193 SERVICE4. Se e the HP 8935 Assembly Level Repair Manual.
226 Index Index T TACS , 175 talk & listen , 17 1 Thres hold fi eld Code D om ain An aly z er scr een , 110 tim e marke rs , 15 4 Tim e (m ark er ) fie ld Osci ll oscop e scree n , 154 t ime a nd .
Index Index 22 7 V V key , 26 varia ble fr equency notc h filter , 141 version numbe r f irm w a re , 167 Vert Offs et f iel d Oscillos co pe screen , 158 Vert/div field Oscillos co pe screen , 158 ve.
228 Index Index Z ze ro refer ence tra n smi t te r p ow er , 157 Zeroe s dat a so ur ce , 99 zeroin g pow er me ter , 157 Main Menu.
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