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HP Cell Phone Accessories 8935 User's Manual

1. Main Menu Utility Procedures User Keys Assigning a Global User Key 1 Move the cursor to the field you want to assign to a user key 2 Press the shift key 3 Press the ka Assign key 4 5 Press the user key you want to assign to the field you chose k1 k2 or Press the shift key k3 Global user keys are indicated as k1 k2 and k3 on the front panel to indicate that they are shifted functions The number of the user key does not appear beside the field when using global user keys To Release a User Key Assignment Perform the same procedure for assigning a key but instead of pressing the ka Assign key press the ks Release key Chapter 3 67 Main Menu i lt v x e iv iv Qa iv o i gt D pel O wo Utility Procedures Using Channel Numbers to Set Analyzer and Generator Frequencies Using Channel Numbers to Set Analyzer and Generator Frequencies Figure 3 9 Set the RF Display field to Chan to turn on channel tuning Select the RF Chan Std field to dis play a list of system types pe LS ANPS and then select LS AMPS for testin AMPS base stations 68 RF analyzer and RF generator frequencies can be entered by channel number the default setting or by discrete frequencies in MHz The RF Display field on the INSTRUMENT CONFIGURE screen controls which way frequencies are entered This screen is accessed by pressing t
2. Test Set operation includes how to change control settings how to navigate between control screens and how to change the units used for any measurement or setting Test Set operation and feature descriptions are included in the Reference Guide Base station operation includes turning the transmitter on and off turning the SAT tone and data signals on and off and knowing where to connect test cables from the Test Set to your base station You also need to properly configure the Test Set for your test situation The following sections describe operations needed to simplify Test Set operation and minimize measurement errors e Entering the known losses and or gains in your test setup is explainedin Compensating for Signal Losses and Gains in the Test Setup on page 33 e Measuring the signal loss through cables and other devices is explained in Measuring Insertion Losses on page 51 e Choosing to enter your base station s transmit and receive frequencies by channel number or by discrete frequencies is explained in Using Channel Numbers to Set Analyzer and Generator Frequencies on page 68 z saydeyo oO 7 Q gt U wn w 2 7 oO w 2 fo wo Chapter 2 31 Main Menu Testing AMPS Base Stations Connecting the Test Set to Your Base Station Connecting the Test Set to Your Base Station The connections shown in Figure 2 1 indicate a generic base station using a test interface f
3. Utilities Utilities Utilities Utilities Utilities Utilities Utilities Utilities Utilities Utilities Utilities Utilities Average Power Channel Power khao Code Domain Testina Transmit Spectrum Insertion Loss Insertion Loss Power Measurements Fower Measurements Return Loss Return Loss Scope 1 Scope 2 Spectrum Spectrum Trackina Voltmeter Main Menu i of 2 2 of 2 1 2 2 2 1 of 2 2 of 2 of 2 of 2 Analyzer Analyzer Generator 57 lt v e 9 O Qa c oO 77 i gt D pel O o Utility Procedures Ports HP IB Serial and Parallel Ports HP IB Serial and Parallel HP IB Port Serial Ports 58 There are three types of data ports on the Test Set HP IB Serial and Parallel They each have specific purposes This port is provided on the Test Set for E E E 488 2 communications It is used to control the Test Set with an external IBASIC controller or to control other HP IB equipped devices This port can be used with an external programming device when writing programs although it is also common to program the Test Set using a serial port The default address of the HP IB port is 14 This is commonly used in IBASIC programs An example command providing output to the port is OUTPUT 714 RST which presets the Test Set It has two modes which correspond to modes useful when programming the Test Set
4. E E A A babe deb ed ede ebsbsissstecsestssudesssseree Center Frea Ref Level ae MHz dEn Main Menu 850 00000 in aa aeaa aaa E E ET m EERE ee ee eee ee n Been T a Harker BW 300 Hz Frea Lvl 13 05 Chapter 1 Getting Started with AMPS Test Display an FM Carrier Signal Loopback Test What to Do Next Congratulations You are now ready to begin testing your AMPS Base Station Proceed to Chapter 2 Testing AMPS Base Stations on page 29 4ajdeyo ra mi vo 9 i oO Qa gt gt pe D Chapter 1 27 Main Menu Getting Started with AMPS Test Display an FM Carrier Signal Loopback Test 28 Chapter 1 Main Menu Testing AMPS Base Stations Advanced Mobile Phone System AMPS base stations for cellular telephone systems are basically continuous wave CW FM voice transceivers with some control and data signals for system operation This chapter explains how to use the Test Set to manually test the RF and AF performance of the transmitter and receiver portions of the base station z saydeyo oO 7 Q gt U wn w 2 7 oO w 2 fo wo 29 Main Menu Testing AMPS Base Stations AMPS Tests You Can Perform AMPS Tests You Can Perform CAUTION 30 The following tests are explained in this manual e Transmitter Frequency Error Offset and Power Test on page 34 e Transmitter SAT Freq
5. displayed Figure 2 5 Data Deviation Test Results kHz FM Deviation 0 060 9088 Data Deviation TR Power P 30 1 9 99998 RF Channel Input Port IF Filter TH Pur Meas Peak Sampl a Input Atten Sauelch Auto Zero Fixed Auta Monual z saydeyo Sensitivity RF Cnt Gate Th Pur zero zero Hormal Hi sh ns O 5 Co gt pe wn w D O o w h D e D Chapter 2 39 Main Menu Testing AMPS Base Stations Transmitter Maximum Voice Deviation Transmitter Maximum Voice Deviation This test measures the transmitter s maximum FM Deviation by a voice signal in the absence of any other modulation signal Prerequisites The following conditions must be met before testing O The Test Set is turned on and Preset was pressed to establish a known instrument state O You have configured the Test Set for channel tuning see Using Channel Numbers to Set Analyzer and Generator Frequencies on page 68 You have specified any gains or losses in your test system see Compensating for Signal Losses and Gains in the Test Setup on page 33 Test Procedure 1 Turn off the base station s RF transmitter A transmitter can be damaged if it is not transmitting into a specified load such as an antenna power amplifier duplexer or power meter with a 50Q input impedance 2 Verify that the transmitter s rated RF power or the level ou
6. 13 Enter the transmitter s channel number in the RF Channel field Chapter 2 43 Main Menu z saydeyo Testing AMPS Base Stations Receiver Sensitivity SINAD 14 Set an initial RF generator level in the Amplitude field This value depends on the sensitivity of the receiver but 90 dBm should bea good starting point At this point you should be able to turn the Test Set s Volume knob clockwise and hear a 1 kHz tone from the Test Set s speaker N eKO AC Level P Set to 0 04719 SINAD TX Power SINAD re Enter the 0 00002 8 39 76 24 RF Chan fus TurnonFM nel number modulation AFGeni Frea AFGeng Frea f th RF or the Ha Generator Anplitude AFGenl To nod In To 90 0 i a a of Setaninitial fren Hola level of Aa 90 dBm 4 Dut iye 15 Set the Amplitude field to increment in 1 dB units To dothis position the cursor in front of the Amplitude field press the Incr Set key and enter 1 dB using the keypad 16 With the cursor front of the field turn the knob to decrease the Amplitude setting until the desired SINAD measurement is displayed commonly 12 dB You should hear the 1 kHz tone get noisy as you approach the 12 dB SINAD reading Figure 2 6 SINAD Test Results kHz AC Level EA TX Power W dB 0 00001 8 14 04 24 ee SINAD reading goes down and the As you decreasethe kF channet AFGent Frea AFGen2 Frea signal through 350 1 0000 7 RF P E KAZ the T
7. 36 SAT Frequency test 36 screens selecting 24 serial port 58 configuring 58 configuring for HP IB communications 59 port 9 configuring for HP IB communications 59 port 9 configuring for printing 59 ports 10 and 11 59 using for printing 59 signal losses and gains compensating 33 SINAD test 42 software manufacturer specific 21 purchased 21 Spectrum Analyzer 26 squelch threshold 45 SRAM card initializing 52 systems AMPS 18 CDMA 18 PCS CDMA 18 76 F temperature compensation Pwr Zero 22 test interface connections 32 Test Set documents included 20 what s in the box 20 tips for selecting screens and fields 24 TMO web site 19 tools contained in the Test Set 18 tracking generator 65 controls display 65 offset frequency 65 using 65 TX Power 30 TX Power test 34 Main Menu U U S Call Center 19 user keys global 66 local 66 releasing 67 setting 66 Utility Procedures 49 Index Index Vv Ww Voice Deviation max test 40 web site voltmeter 70 TMO 19 connector 70 what to do next 27 volume What s Included with this Test controlling beeper 50 Set 20 www tmo hp com 19 Index 77 Main Menu
8. Hotch Gain 0 dB ns Hotch Frea Scope To Speaker Yol Filter 2 6kHz BPF I AF Cnt Gate De Enehasis P00 Detector Speaker ALC n t t kHz 9 Press the RF Ani key to access the RF ANALYZER screen 10 Enter the transmitter s channel number in the RF Channel field 11 Turn on thetransmitter The FM Deviation andAF Freq for the SAT are displayed as well as Frequency Error and TX Power Figure 2 4 SAT Frequency and Deviation Test Results FM Deviation 0 069 2 040 lt SAT Deviation TX Power kHz 38 7 6 00000 SAT Frequency 2 RF Channel Input Port IF Filter TH Pur Meas S 350 RE Tn Ant Peak Sanple Co gt 2 Input Atten Sauelch Auto zero y7 Buto Hold ButoManual OS 35 dB Do Sensitivity RF Cnt Gate Th Pur zero 3 N Y ne 9 5 Oo Chapter 2 37 Main Menu Testing AMPS Base Stations Transmitter Data Deviation Transmitter Data Deviation This test measures the transmitter s digital data deviation in the absence of any other modulating signal Prerequisites The following conditions must be met before testing O The Test Set is turned on and Preset was pressed to establish a known instrument state O You have configured the Test Set for channel tuning see Using Channel Numbers to Set Analyzer and Generator Frequencies on page 68 You have specified any gains or losses in your test system see Compensating for Sign
9. 39 Rue Veyrot P O Box 365 1217 Meyrin 1 Geneva Switzerland Telephone 41 22 780 4111 Fax 41 22 780 4770 Australia New Zealand Sales and Service Hewlett Packard Ltd P O Box 221 31 41 J oseph Street Blackburn Victoria 3130 Telephone 61 3 895 2895 Fax 61 3 898 9257 Canada Sales and Service Hewlett Packard Canada Ltd 5150 Spectrum Way Mississauga Ontario L4W 5G1 Canada Telephone 416 206 4725 Fax 416 206 4739 Canada Service Center Hewlett Packard Company 17500 Transcanada Highway S Serv Road Kirkland Quebec H9J 2X8 Canada Telephone 416 206 3295 Canada Service Center H ewlett Packard Ltd 11120 178 Street Edmonton Alberta T5S 1P2 Canada Telephone 403 486 6666 F ax 403 489 8764 Latin America Hewlett Packard Company LAHQ Mexico City Col Lomas de Virreyes 11000 Mexico D F Mexico Telephone 52 5 326 4000 Fax 52 5 202 7718 United Kingdom Sales and Service H ewlett Packard Ltd Cain Road Amen Corner Bracknell Berkshire RG12 1HN United Kingdom Telephone 44 344 360000 Main Menu 11 12 Main Menu Contents in This Mantial cis icccat cist beeatieaca karen ee bees 15 1 Getting Started with AMPS Test PbO The Test Sess cide Gee ended ee ber dhe See her en seen bOS45 18 Product DeSipHON i024 swe kaieee ean ead ewes boris Roe does 18 AES idk Se PHA PRE Ade REELS hoe RDR PRES 18 GERNE MED 16s tees debe a etek
10. BREE 38 Prerequisites 2 dau hur chen eed aeiae ie ae aioa ieee e eke eked nae 38 TELFON G ae 2 ecard nuen peuedcs bane Cowie beh se ee Aeeawe 38 Transmitter Maximum Voice Deviation 00 cece eee 40 Prec quicwes ito dauye rede akatedaeee Mo a wen 40 TES PROCS cas cebhc edad s tee sen eee ee Bes A 40 Receiver Sensitivity SINAD 0 ccc eee eee eee 42 Prercuuileies hx cbva cade Suede ecu Se eehe tun eee dedi 42 TORPO O UG aoe heed aa eda a Bed eed 42 Receiver Squelch Threshold 0 0 cece eee eee 45 Prerequisites cde oe ci odes cele ss beypee keds bende eee ad eae 45 TePo U reee bee iben ony ee ebes eee Shee eee 45 3 Utility Procedures BOEDO a ra era 50 Bete CONN ota ders amieta ed doe eek omni eres dee 50 13 Main Menu v Z D e 9 2 e 5 2 D 3 D Contents 14 Measuring Insertion Losses 0000 cc eee eee eee eee 51 Eer E e r Sik acca EE E det Mile ee a TT 52 Memory Cards and Intialization nansa aaa 52 arall eneon aE T A E E E T 53 Selecting the Oscilloscope s Input 20000 eee 54 Selecting the Oscilloscope s Filters 000000 ee en 54 Triggering the Oscillostope oo cves sev ivd where ee dene eee 55 Using the Marker po ccc ninipunin e hese een bed Be eR ake 56 ONME MEE eirt kavit eriyen t Aini e e etn a E 57 Rep Se cen DIPY ici tis iier sere destenreaGaeeuanreae 57 Ports HP IB Serial and Parallel cascccwc enews cawis ciwsennwes 5
11. Configuration defaults are 9600 none 8 1 Xon Xoff b HP IB The HP IB address HP IB Adrs is set to printer address 701 Enter this number as 01 Set Mode to CONTROL The default address 14 is reserved for an external controller c PARALLEL PORT There are two ports available Port 15 the printer port is the uppermost port 4 Connect the proper cable to the connector you selected e SERIAL PORT standard NULL MODEM cable e HP IB HP IB cable such as HP 10833B e PARALLEL PORT parallel cable 5 Change the FF form feed and Lines Page as needed Printing a Screen 1 Configure the Test Set for Printing 2 Gotothe screen you want to print 3 Press the Hold key if you want to temporarily stop the measurement Optional 4 Press the Print key Data will be sent to the printer 5 To cancel the print go tothe PRINTER CONFIGURE screen and select Abort Print Zo UD x 93 9 S coe a oO 7 Chapter 3 61 Main Menu Utility Procedures Measuring Swept Return Loss Measuring Swept Return Loss This procedure measures the return loss VSWR of an antenna using an IBASIC program that is in the Test Set s memory An external directional bridge must be provided such as an Eagle RLB 150X5 Option N5A or equivalent Press the Menu key to access the SOFTWARE MENU screen and follow the instructions illustrated on the following pages Figure 3 4 Loading and Running the Return Loss Program S
12. Control 1 Press the Inst Config key to go tothe INSTRUMENT CONFIGURE screen 2 Select Beeper 3 Choose from off Quiet or Loud 50 Chapter 3 Main Menu Utility Procedures Measuring Insertion Losses Measuring Insertion Losses To make accurate power and receiver measurements the signal loss through the cables or other devices used in your test setup must be known and entered into the Test Set s INSTRUMENT CONFIGURE screen to compensate for these losses Signal losses are measured usinga built in automated routine that runs on the Test Set s IBASIC controller Losses can be calibrated at a discrete single frequency or over a frequency range This is one routine included in a set of utility procedures called the RF TOOLS During the test a calibrated signal goes through two 6 dB attentuators pads such as Mini Circuits model NAT 6 60 and a short type N male to male cable to establish a known reference point The Test Set then prompts you to connect the device under test to measure the additional loss through that device The pads and cable are not part of the standard equipment shipped with the Test Set Figure 3 1 shows how toload and run the RFTOOLS routines and select the desired insertion loss test Figure 3 1 Loading and Running the Insertion Loss Test 1 TARE MEHU a RFTOOLS ac Revision B 02 01 continue LOAD TEST PROCEDURE Select Procedure Location Select ROM gt
13. DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES WHETHER BASE ON CONTRACT TORT OR ANY OTHER LEGAL THEORY Main Menu ASSISTANCE Maintenance Agreements Product maintenance agreements and other customer assistance agreements are available for Hewlett Packard products For any assistance contact your nearest Hewlett Packard Sales and Service Office Main Menu Regional Sales Offices IMPORTANT Regional Sales and Service Offices Eastern USA Sales Office Hewlett Packard Company 2101 Gather Rd Rockville MD 20850 Tel 301 258 2000 Eastern USA Sales Office Hewlett Packard Company 2101 Gather Rd Rockville MD 20850 Tel 301 258 2000 Midwestern USA Sales and Service Hewlett Packard Company 5201 Tollview Drive Rolling Meadows IL 60008 Tel 708 342 2000 Southern USA Sales and Service Hewlett Packard Company 1995 North Park Place Atlanta GA 30339 Sales Tel 404 955 1500 F ax 404 980 7292 Service Tel 404 850 2544 Fax 404 980 7292 Southern USA Service Center Hewlett Packard Company 930 E Campbell Road Richardson TX 75081 Tel 214 699 4331 Western USA Service Center Hewlett Packard Company 301 E Evelyn Avenue Mountain View CA 94041 Tel 415 694 2000 F ax 415 694 0601 Western USA Sales and Service Hewlett Packard Company 24 Inverness Place East Englewood CO 80112 Sales Tel 303 649 5000 Fax 303 649 5787 Service Te
14. Refer to Measuring Insertion Losses on page 51 for information about measuring cable system losses e Total losses gains between the transmitter s output and the Test Set s RF IN OUT port are entered in the RF In Out field A negative number indicating a loss causes the displayed TX power measurement to be increased by the entered amount A positive number indicating a gain causes the RF analyzer to decrease the displayed TX power measurement by the entered amount e Total losses between the Test Set s DUPLEX OUT port and the base station s receive port s are entered in the Duplex Out field as a negative number such as 1 2 The RF Generator will automatically increase its level out of the DUPLEX OUT port by the value entered to compensate for the loss Figure 2 2 Entering Test System Losses and Gains Set the RF Level Offset dare ie ol AF Diseloy Rat Eelack a bert field to On EEL Ce I i iii T hae RF Chaa Sed Est ket a Tata RAH AF Inui LS AMPS RUM 326 HH AM dgeper Sarin Ho Freak Clock 0337 p054 ut eyt Enter the loss or gain between each port and the base station Jes HAA TE Chapter 2 33 Main Menu oO 7 Q gt U wn w 2 7 oO w 2 fo wo z saydeyo Testing AMPS Base Stations Transmitter Frequency Error Offset and Power Test Transmitter Frequency Error Offset and Power Test This test compares the measu
15. Talk amp Listn is the normal mode Use Control only when you need to control HP IB instruments external to the Test Set Controlling the HP IB Port 1 Press shift then the inst Config I O Config key to display the I O CONFIGURE screen 2 Set the address of the HP IB port with the HP IB Adrs field 3 Use the Mode field to set the mode to either Talk Listn or Control Three serial ports are available on the Test Set Port 9 is used for printing BASIC control and data communications Serial ports 10 and 11 are used only for data communications from IBASIC Configuring Serial Ports All serial ports are configured via the I O CONFIGURE screen Baud Rate Parity Data Length Stop Length and Flow Control are all configured in this screen Additionally port 9 can be configured for IBASIC control in this screen 1 Press shift then inst Contig 1 O Config to go to the O CONFIGURE screen 2 Select Serial Port to choose the port you want to configure Chapter 3 Main Menu NOTE Chapter 3 Utility Procedures Ports HP IB Serial and Parallel 3 Change the settings for the port as desired Do not turn Flow Control on set Flow Cnt1 to Hardware in the I O CONFIGURE screen for the serial port until you have a device attached to the port that can respond to the flow control communications Example Assume you havea printer attached to Serial Port 9 Power is off to the printer Before you start to run
16. Turn on the Test Set or press Preset if it is already on The CDMA ANALYZER screen will be displayed 3 Press the inst Contig key 4 Select RF Display and set the field to Freq 5 Verify your connections See Connections for FM Carrier Loopback Test on page 23 Generate an FM Carrier Signal Refer to Figure 1 2 1 Press cDMA Gen to go to the CDMA GENERATOR screen 2 Select CW RF Path and set it to Bypass This shuts off the IQ modulation normally used for CDMA testing 3 Press the RF Gen Key to goto the RF GENERATOR screen 4 Select RF Gen Freq and use the keypad to set the frequency to 850 000 MHz 5 Select Amplitude and set the amplitude to 0 dBm 6 Select Output Port and verify that the port is set toDup1 7 Turn on FM modulation by positioning the cursor in the lower half of the AFGen1 To field and pressing the on off key The default FM deviation is 2 9 kHz The default FM rateis 1 0 kHz 24 Chapter 1 Main Menu Getting Started with AMPS Test Display an FM Carrier Signal Loopback Test NOTE AF generators 1 and 2 are automatically turned off anytime you access any of the CDMA screens CDMA GENERATOR CDMA ANALYZER CODE DOM This prevents accidental addition of AM or FM when generating a CDMA signal If you accidentally access any of the CDMA screens when testing an AMPS base station any AM or FM you specified on the RF GENERATOR screen will be turned off while on that CDMA screen Previousl
17. any IBASIC software for example the RF TOOLS program youmust make sure the printer is attached and power is on tothe printer Using Serial Ports for Printing Serial Port 9 is the only serial port that can be used for printing See Printing on page 61 1 If you want to change the serial port configuration see Configuring Serial Port 9 for IBASIC Communications on page 59 It is not necessary to change the Serial_9 In field 2 Press shift then Print Printer Config to display the PRINTER CONFIGURE screen 3 Select Printer Port Choose Serial 9 todirect the output to Serial Port 9 4 Press Print to print the currently displayed screen Configuring Serial Port 9 for IBASIC Communications The internal connection to Serial Port 9 is controlled in the O CONFIGURE screen The port has two purposes with I BASIC e Inst Serial Port 9 is connected toa terminal eg a PC running Windows Terminal program BASIC commands are input from the terminal and are used to control the Test Set e IBASTIC Serial Port 9 is connected toa device that can communicate with an IBASIC program already running inside the Test Set Typically used for input output to a PC or other device 1 Press shift then inst Contig I O Config to go to the O CONFIGURE screen 2 Select Serial_9 In totoggle between Inst and IBASIC Configuring Serial Ports 10 and 11 Serial Ports 10 and 11 are only config
18. in a socket outlet provided with a protective earth contact Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous Intentional interruption is prohibited Do not expose to or operate this instrument in outdoor atmospheric conditions such as direct rain hail sleet snow icing sunshine or wind Operate this instrument only within its specified temperature humidity conditions This instrument is equipped with internal ground fault circuit interrupter class A e This device does not protect against electrical shock due to contact with both circuit conductors or a fault in supply wiring to product e Do not use extension cord to connect this product to power receptacle Attention ne pas utiliser de rallonge pour raccorder le detecteur disjoncteur a la prise de courant e Replace cordset only with HP 8120 series Attention Remplacer uniquement par un cordon amovible numero 8120 e Do not use in wet location Ne pas utiliser dans un emplacement mouille Whenever it is likely that the protection has been impaired the instrument must be made inoperative and be secured against any unintended operation If this instrument is to be energized via an autotransformer for voltage reduction make sure the common terminal is connected to the earth terminal of the power source If this product is not used as specified the protection provided by the equipment could be impair
19. with different transmit and receive frequencies This is explained further in Using Channel Numbers to Set Analyzer and Generator Frequencies on page 68 Connections for FM Carrier Loopback Test Connect the Test Set in the following manner Figure 1 1 FM Carrier Loopback Test Connections 4aydeyo O mi vo 9 i oO Qa gt gt pe D J S RF IN OUT ANTIN DUPLEX 3 ee Sere Tinea DUPLEX OUT RF IN OUT Chapter 1 23 Main Menu Getting Started with AMPS Test Display an FM Carrier Signal Loopback Test Get Started with the Test Set Here are some guides for selecting screens and fields Use the knob to move the cursor around the screen Reverse video boxes indicate fields that can be selected To select a field on the screen push the knob or press the Enter key Use the RF Gen RF Ani and Spec Ani keys to access the RF GENERATOR RF ANALYZER and SPEC ANL screens Selecting the titlebar at the top of the screen displays a list of screens that can be immediately accessed when selected Preparing the Test Set 1 Plugin the Test Set 2
20. 8 HPA Pore ian ed a bee ARR do OR RA 58 Serial POUS sie Geet cK TRESS RRO ADEE REDE 58 Parallel POS 664 bind ee Ls esr teen eee eer anew 60 Prin cdccaieii idee Ridaiod chierebodd beiadders andes 61 Configuring the Test Set for Printing sssusa cece eee eee 61 Printing a SVG esses dd eee Sie ksh eaa i e a 61 Measuring Swept Return LOSS icc e wesc e sew eae ade eenan 62 Tracking GIS atO i cx ciccihicceee eee ROME ERR Owe HE EK RES 65 Using the Tracking Generator 0200 e eee eee 65 Weel KOS 64d seta t eid oe ee STR EAE ER SER EEL RETR SEER ES 66 Displaying the Pre assigned Local User KeyS 00005 66 Assigning a Local User Key ccc tenes 66 Assigning a Global User Key 0 ccc ees 67 To Release a User Key Assignment 000 0c eee eee 67 Using Channel Numbers to Set Analyzer and Generator F requencies68 RF Chan and TUNG Freg Fidda cies sieciawee siete ed ew eneweds 69 VOE 6 60 IR TA ERA Sw a dee ee bah oe 70 Measuring AC Level and DC Level 00 cc eee eee 70 Main Menu In This Manual What is Discussed This Manual This manual explains how to use the HP 8935 to manually test an AMPS base station This document presents a step by step approach to AMPS base station testing using the Test Set including what you need to know before you can start testing What is Not Discussed in this Manual e General operation of the Test Set 5 j D D 5 lt 2 Changing display scree
21. AMPS base stations 29 maximizing measurement accuracy 22 measurement accuracy maximizing 22 measurement port 30 measuring path losses and gains 31 memory cards 52 modes of the Test Set 21 Index Index o oscilloscope 53 features 53 filters and inputs 53 marker 56 selecting the filters 54 selecting the input 54 triggering 55 P parallel port input and output modes 60 ports 15 and 16 60 path losses 33 measuring 31 PCMCIA card 52 Flash ROM 52 initializing 52 OTP 52 SRAM 52 PCS CDMA testing 18 port HP IB 58 HP IB serial parallel 58 measuring AC or DC level 70 printing via the serial port 59 serial 58 Power measurement port 30 Power calibration compensation preassigned local user keys 66 printing 61 and data collection 61 cables 61 configuring the Test Set 61 FF Form Feed 61 how to print a screen 61 HP IB 61 lines per page 61 parallel port 61 ports 61 serial port 9 61 via the serial port 59 probe measuring AC or DC level 70 Product Description 18 Programmer s Guide 21 purchased software 21 R RAM backing up 18 read mefirst 31 Receiver Sensitivity test 42 recevier squelch threshold 45 return loss 62 RF connections 32 RF In Out field 33 RF IN OUT port 32 losses 33 measuring power 30 overpower 30 RF Level Offset field 33 Index Main Menu 75 Index S sales offices 19 SAT Deviation test
22. DIO IN LO connection 5 Press CDMA Gen to access the CDMA GENERATOR screen z Aaydeyo oO 7 Q gt U wn w iN o fo w 2 fo wo Chapter 2 45 Main Menu Testing AMPS Base Stations Receiver Squelch Threshold 6 Setthecw RF Path field to Bypass This turns off the IQ modulation used for CDMA tests EF Channel CH AF Fath Set to Bypass Bypass IQ Qutag Fort Anplitude dBA Gen Grecia Gee Mode FH Urias Euan ber Data Rate 7 Press SHIFT RFAnI AF Anl to access the AF ANALYZER screen 8 Setthe AF Anl In fieldtoAudio In 9 Press the RF Gen key to access the RF GENERATOR screen 10 Set the AFGen1 To fidd toFM and set it to 8 kHz deviation 11 Enter the transmitter s channel number in the RF Channel field 12 Set the Atten Hold field to on The prevents the Test Set from changing its internal attenuators during the test to prevent erroneous squelch interruption 46 Chapter 2 Main Menu Chapter 2 Testing AMPS Base Stations Receiver Squelch Threshold 13 Set an initial RF generator level in the Amplitude field This value depends on the sensitivity of the receiver but 90 dBm should bea good starting point At this point you should be able to turn the Test Set s Volume knob clockwise and hear a 1 kHz tone from the Test Set s speaker LRF GENERATOR mm kHz AC Level Ee TH Power En Enter the 0 00002 TE m RF chann
23. Frea Amplitude 1 o o00000 10 0 65 Main Menu lt U e 9 O Qa c oO 77 i gt D O wo Utility Procedures User Keys User Keys User keys instantly access instrument settings without using the knob You can use user keys to move quickly between fields on the same screen and to access field settings that are not normally available on the screen you are using When the user key is pressed the cursor instantly moves to and selects the assigned field Global user keys are used to access settings that are not available on the current screen Three global user keys are available kT k2 and k3 To use one of these keys press shift then k1 k2 Or k3 Local user keys are used to move between settings on the screen that is currently displayed Five local user keys are available for each screen k1 k2 k3 k4 aNd k5 YOu can assign these keys yourself or use the factory preset assignments Displaying the Pre assigned Local User Keys 1 Press the shift key 2 Press the ka Assign key 3 Press Enter Now the factory preset keys are displayed Assigning a Local User Key 66 1 Move the cursor to the field you want to assign to a user key 2 Press the shift key 3 Press the ka Assign key 4 Press the user key you want to assign to the field you chose The number of the user key will appear beside the field when you move the cursor Chapter 3
24. HP 8935 CDMA Cellular PCS Base Station Test Set AMPS Base Station Tests Application Guide Firmware Version A 01 00 and above HP Part Number E6380 90017 Revision A Printed in U S A November 1997 Copyright H ewlett Packard Company 1997 GQ HEWLETT PACKARD Main Menu Notice Information contained in this document is subject to change without notice All Rights Reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws This material may be reproduced by the U S Government pursuant to the Copyright License under the clause at DFARS 52 227 7013 APR 1998 Main Menu Manufacturer s Declaration This statement is provided to comply with the requirements of the German Sound Emission Directive from 18 J anuary 1991 This product has a sound pressure emission at the operator position lt 70 dB A Sound Pressure Lp lt 70 dB A At Operator Position Normal Operation According to ISO 7779 1988 EN 27779 1991 Type Test Herstellerbescheinigung Diese Information steht im Zusammenhang mit den Anforderungen der Maschinenlarminformationsverordnung vom 18 J anuary 1991 Schalldruckpegel Lp lt 70 dB A Am Arbeitsplatz Normaler Betrieb Nach ISO 7779 1988 EN 27779 1991 Typprufung Main Menu WARNING CAUTION KAN oS Safety GENERAL This product and related documentation must be reviewed for fami
25. N OUT connector 3 Connect the transmitter s RF output to the Test Set s RF IN OUT port 4 Turn off any modulation signals to the base station e Turn off the SAT tone e Turn off any data digital modulation signals e Turn off any audio voice modulation signals 5 Press the RF Ani key to access the RF ANALYZER screen 6 Enter thetransmitter s RF Channel number Chapter 2 Main Menu Testing AMPS Base Stations Transmitter Frequency Error Offset and Power Test 7 Turn on thetransmitter The Tx Freq Error and TX Power measurements are displayed Note Disregard any values shown for FM Deviation and AF Freq at this time Figure 2 3 Transmitter Frequency Error and Power Test Results kHz 0 105 TX Power Hi 38 7 FM Deviation 0 289 2 14672 RF Channel Input Port IF Filter TH Pur Meas 7 i Pegk Sample Input Atten Sauelch Auto Zzero Fixed uto Monual Sensitivity RF Cnt Gate Th Pur Zero ne z saydeyo O 5 Co gt pe wn w D O o w h D e D Chapter 2 35 Main Menu Testing AMPS Base Stations Transmitter SAT Frequency and Deviation Transmitter SAT Frequency and Deviation This test measures the transmitter s Supervisory Audio Tone SAT frequency and deviation in the absence of any other modulating signal Prerequisites The following conditions must be met before testing LY The Test Set is turned o
26. Sie ee E eet hddee 19 What s Included with this Test Set 0220 eee eee 20 Manual and Automatic Operation Modes 020eeaee 21 PB Ae POSS 6 a4 15 EEN EA PR DRY CHINE Dae 21 Maximizing the Accuracy of Your Measurements 0005 22 CAA errs rrr irr ones kd see eee ETEK TEHE Ra Soa OS aA 22 TX Power Temperature Compensation 0000eeeeee 22 Display an FM Carrier Signal Loopback Test 23 Connections for FM Carrier Loopback Test 05 23 Get Started with the Test Set ccccacscanceseeteavneseeieaya 24 Preparingthe TeSt Setii jaririosi riren kiakia Ea ddwes 24 Generate an FM Carrier Signal 000000 eee 24 Analyzingan FM Carrier Signdl sr iresiariiirasrieri iiki 26 What te DONDE rriste pee ed eee ye sea pose Stes RSS e TSR 27 2 Testing AMPS Base Stations AMPS Tests You Can Perform ccc eee ees 30 What You Need to Know to Begin 0 00 0c cee eee eee 31 Connecting the Test Set to Your Base Station 008 32 Compensating for Signal Losses and Gains in the Test Setup 33 Transmitter Frequency Error Offset and Power Test 34 Prerequisites icuieuetwrtybured no eka a a a Shed wens 34 Be Pes rrara ed Adee eda eae de 34 Transmitter SAT Frequency and Deviation 36 Prerequisites rok ee ed deh eee eee ELAS Pay Rae hie 36 Wee Pree ee heh oe eee i ee ae ee 36 Transmitter Data Deviation cie ek eke esd eine eee
27. al Losses and Gains in the Test Setup on page 33 Test Procedure 1 Turn off the base station s RF transmitter A transmitter can be damaged if it is not transmitting into a specified load such as an antenna power amplifier duplexer or power meter with a 50Q input impedance 2 Verify that the transmitter s rated RF power or the level out of the power amplifier if applicable does not exceed the level indicated next to the Test Set s RF IN OUT connector 3 Connect the transmitter s RF output to the Test Set s RF IN OUT connector Turn off voice modulation to the transmitter Turn off the SAT to the transmitter Turn on the data modulation to the transmitter Press Shift RF Ani AF Anl to access the AF ANALY ZER screen N HO Ww A 38 Chapter 2 Main Menu Testing AMPS Base Stations Transmitter Data Deviation 8 Set Filter 1to lt 20Hz HPF 9 Set Filter 2to gt 99kHz LP kHz FM Deviation kHz TX Power El kHz AF Anl In Settling Gain Cntl Audio In Lo FH Demod Slow East uto Hold 600 To Hi Filter 1 Pk Det To Input Gain lt 20HZ HPF gt EIA Scope To De Emp Gain P10 Filters O dB AF Cnt Gate gt 99kHz LPF Speaker Vol Notch Gain HETEN ns Speaker ALC Hotch Frea m 1 0000 kHz 10 Press the RF Ani key to access the RF ANALY ZER screen 11 Enter the transmitter s channel number in the RF Channel field 12 Turn on the transmitter The FM Deviation from the data is
28. ation members Main Menu Warranty This Hewlett Packard instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment During the warranty period Hewlett Packard Company will at its option either repair or replace products which prove to be defective For warranty service or repair this product must be returned toa service facility designated by HP Buyer shall prepay shipping charges toHP and HP shall pay shipping charges duties and taxes for products returned to HP from another country HP warrants that its software and firmware designated by HP for use with an instrument will execute its programming instructions when properly installed on that instrument HP does not warrant that the operation of the instrument or software or firmware will be uninterrupted or error free LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer Buyer supplied software or interfacing unauthorized modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance NO OTHER WARRANTY IS EXPRESSED OR IMPLIED HP SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES HP SHALL NOT BE LIABLE FOR ANY
29. cope probe to the AUDIO IN HI connector AC Level is displayed TochangetoDc Level select the AF Freq measurement and choose Dc Level from the displayed list of choices Chapter 3 Main Menu Index A B AC level Base Station connections 32 measuring 70 batteries AC volts replacing 18 measuring 70 beeper 50 AF Anl Input field 54 AF connections 32 AMPS Base Stations manual testing 29 AMPS testing 18 AMPS tests receiver sensitivity SINAD 42 receiver squelch threshold 45 transmitter data deviation 38 transmitter frequency error offset and power 34 transmitter maximum voice deviation 40 transmitter SAT frequency and deviation 36 AMPS Tests listed 30 analyzer and generator frequencies using channel numbers 68 Analyzing FM Carrier 26 ANT IN port overpower 30 Antenna In field 33 ANTENNA IN port losses 33 Assembly Level Repair Manual calibration 22 assigning global user keys 67 assigning local user keys 66 AUDIO IN port 32 AUDIO OUT port 32 automatic operation 21 Available AMPS tests 30 C cable losses compensating 33 cables for printing 61 HP IB 61 Null Modem 61 calibration Assembly Level Repair Manual 22 when you change a module 22 call center Europe 19 U S 19 Canada HP Direct 19 CD ROM documentation 20 Cell Band CDMA testing 18 change battery procedure 18 channel numbers using to set analyzer and generator frequencies 68 co
30. e functions are accessed from the AF Anl and SCOPE screens Figure 3 2 Inputs and Filters for the Oscilloscope FM Demod Controlled by AF Anl In Input AM Demod SSB Demod a AUDIO IN connector Filters Analog Modulation In ___ C_ connector FM Mod De emp AM Mod Audio Out Chapter 3 Main Menu e Ee Controlled by Scope To field To Scope To Audio Monitor Out connector 53 i lt v x e iv iv Qa iv o i gt D pel O wo Utility Procedures Oscilloscope Selecting the Oscilloscope s Input 1 Press shift then RF Ani AF Anl to select the AF ANALYZER screen 2 Select the AF Anl Input field A list of choices appears 3 Select the desired input to the scope FM Demod for FM demodulated audio from input signals connected to the RF IN OUT or ANT IN connectors AM Demod for AM demodulated audio from input signals connected to the RF IN OUT or ANT IN connectors SSB Demod for SSB demodulated audio from input signals connected to the RF IN OUT or ANT IN connectors Audio In for a signal connected tothe AUDIO IN connector Ext Mod for a signal connected tothe rear panel MODULATION INPUT connector FM Mod for the FM modulated audio from the RF generator section AM Mod for the AM modulated audio from the RF generator
31. ea HP Direct 82 2 769 0800 Canada HP Direct 800 387 3154 European Call center 31 20 547 9990 Test and Measurement Organization on the web http Wwww tmo hp com 4ajdeyo ra mi vo 9 i oO Qa gt gt pe D Chapter 1 19 Main Menu Getting Started with AMPS Test About the Test Set What s Included with this Test Set 20 The equipment commonly shipped with the base Test Set is listed below Options that you order with your Test Set may change this list Test Set Documentation e CDMA Applications Guide e CD ROM with the above listed manual AMPS Base Station Tests Applications Guide Assembly Level Repair Manual Programmer s Guide and HP 8935 Reference Guidein Adobe Acrobat Reader format pdf Power cord Cover for the front panel of the Test Set Chapter 1 Main Menu Getting Started with AMPS Test Manual and Automatic Operation Modes Manual and Automatic Operation Modes You can operate the Test Set in either of two modes manual or automatic Controlling the Test Set with the keypad is manual operation Controlling the Test Set with a program is automatic Operation Use manual mode when you want to control the Test Set with the front panel Manual operation is described in this document Use automatic mode when you want to control the Test Set with its internal IBASIC controller To use the Test Set in automatic mode you must load an IBASIC program int
32. ed This product must be used in a normal condition in which all means for protection are intact only No operator serviceable parts in this product Refer servicing to qualified personnel To prevent electrical shock do not remove covers Servicing instructions are for use by qualified personnel only To avoid electrical shock do not perform any servicing unless you are qualified to do so Main Menu CAUTION The opening of covers or removal of parts is likely to expose dangerous voltages Disconnect the product from all voltage sources while it is being opened Adjustments described in the manual are performed with power supplied to the instrument while protective covers are removed Energy available at many points may if contacted result in personal injury The power cord is connected to internal capacitors that my remain live for 5 seconds after disconnecting the plug from its power supply For Continued protection against fire hazard replace the line fuse s only with 250 V fuse s or the same current rating and type for example normal blow or time delay Do not use repaired fuses or short circuited fuseholders FUSE T 5 0A Always use the three prong ac power cord supplied with this product Failure to ensure adequate earth grounding by not using this cord may cause personal injury and or product damage This product is designed for use in Installation Category I1 and Pollution Degree 2 per IEC 1010 and IEC 664
33. el Avs TurnonFM number modulation for the RF kHz Set a initial Anplitude AFGeni To generator itud and set to level of PiE i UJ 90 dBm Atten Hold 8 kHz Tee a Set to ane a But an _ 14 Set the Amplitude field to increment in 1 dB units Todo this position the cursor in front of the Amplitude field press the Incr Set key and enter 1 dB using the keypad 15 With the cursor in front of the Amplitude field turn the knob counterclockwise to decrease the Amplitude setting until the received audio is no longer heard on the Test Set s speaker or until the AC Level reading drops suddenly The RF amplitude at which the audio signal is no longer output is the squelch threshold Main Menu 47 oO 7 Q gt U wn w 2 7 oO w 2 fo wo z saydeyo Testing AMPS Base Stations Receiver Squelch Threshold 48 Chapter 2 Main Menu 3 Utility Procedures This chapter contains procedures and instructions that will help you make the most efficient use of your Test Set Main Menu 49 Cc Zo UD x 93 9 S coe a oO 7 Utility Procedures Beeper Beeper The beeper notifies you when a message is displayed Since a message may be removed from the screen before you notice it it is better to leave the beeper on to alert you to errors during operation The beeper s volume setting is retained when the instrument is turned off Beeper
34. elect ROM Wil Select RFTOOLS 3 Select Run Test Mata Transtar an CUSTOMIZE TEST PROCEDURE SET UP TEST SET Use the knob to move the cursor and H RFTOOLS Revision B 02 01 LOAD TEST PROCEDURE Select Procedure Location Select Procedure Filename Description Gains Insertion Loss P a ff Utilities mM Pass Fail Limits BAS A Sove Delete Procedure Select Test Moin Nenu Choices Fesi Swept Gain select Swept Return Loss Discrete Frea Insertion Loss B eet Insertion Loss 62 Swert Return Loss Coble Fault Replot Dota Files Transfer Stored Data SA Self Calibration ON OFF Catalogs Memory Cord Setup Printer Data Collection Next Page Main Menu urn Loss Coble Fault Hele fy Printer Setur AERD IBASIC Cntrl TESTS IBASIC Controller EE FaContinue Program ROM Sel Test m m E cuit Chapter 3 Utility Procedures Measuring Swept Return Loss Figure 3 5 Entering Swept Return Loss Measurement Information TESTS IBASIC Controller le turn the knob to the desired item 1 EET Enter the Start and Stop Frequency and push to select ite values for the measurement Ao The Max expected loss valueis used to determinethe graphics scaling when the Mpeturn to the previous nenu p measurement is displayed ah ate DUPLEX OUT level in dBm The DUPLEX OUT level is adjustable Begin Test a to reduce
35. es can be characterized with single sweeps due to the full span sweep capability to 1 GHz The tracking generator also includes amplitude and frequency offset Output from the tracking generator are provided at either the RF IN OUT or DUPLEX OUT connector Using the Tracking Generator NOTE Figure 3 8 Tracking Generator Controls Chapter 3 Tomeasure return loss see Measuring Swept Return Loss on page 62 Tomeasure insertion loss see Measuring Insertion Losses on page 51 Features of the tracking generator are listed below e Sweep the start and stop frequencies of the sweep are determined by the spectrum analyzer s Main menu The Span determines the band and Center Freq defines the midpoint of the sweep e Offset Freq sets the difference between the instantaneous frequency of the tracking generator and the center frequency of the spectrum analyzer This value can be positive or negative e Amplitude sets the amplitude of the signal e Norm Invert With Norm the tracking generator sweeps from low to high frequencies With Invert it sweeps from high to low frequencies The offset function is useful when looking at frequency translating devices or anytime you need to sweep around a frequency while analyzing another During normal operation offset is set to 0 00 Spectrum Analyzer with Tracking Generator Controls Displayed Marker BW 300 kHz Frea 91 057692 Lvl 65 38 it Controls Offset
36. est Set s amplituaeinto your p y AFGen1 To AFGen2 To Hod In To speaker gets receiver p gt f FI FH noisy 2 90 oft Atten Hold kHz Aniti FM Coupling Audio Out AC DC OC FM zero 44 Chapter 2 Main Menu Testing AMPS Base Stations Receiver Squelch Threshold Receiver Squelch Threshold This test determines the RF Signal level where the receiver squelches switches off the audio output Prerequisites The following conditions must be met before testing O TheTest Set is turned on and PRESET was pressed to establish a known instrument state O You have pressed the Preset key to establish a known instrument state You have configured the Test Set for channel tuning see Using Channel Numbers to Set Analyzer and Generator Frequencies on page 68 You have specified any gains or losses in your test system see Compensating for Signal Losses and Gains in the Test Setup on page 33 Test Procedure 1 Turn off the base station s transmitter 2 Turn the base station s data and SAT off 3 Connect the base station receiver s inputs to the Test Set s DUPLEX OUT port 4 Connect the receiver s audio output to the Test Set s AUDIO IN port s Unless the receiver s audio out amplifier is not referenced to chassis ground you should only connect tothe AUDIO IN HI port For floating output amplifiers see the HP 8935 Reference Manual for information on using the AU
37. gt E Procedure Filename Select RFTOOLS gt Program Lik PAOOLS ROM Description Goins Insertion Loss P Select Run Test Mata Trane ore nnd P CUSTOMIZE TEST PROCEDURE SET UP TEST SET urn Loss Cable Fault Help Utilities AEE Channel Information B Execution Cond Poss Foil Limits ERD IBASIC Cntrl A Sove Delete Procedure When the screen below appears TESTS CIBASIC Controller turn the knob to the desired iten ct ite Select Test Nain Neng use the knob to move the cursor and mE MS select either Discrete Freq Insertion I Loss or Swept Insertion Loss When Suet Gein nig pl run the test prompts you to enter the Suert Insertion Loss necessary test frequency information Swert Return Loss Cable Fault sms 2d displays setup diagrams Make the ee indicated connections and follow SA Self Calibrati ON OFF Catalas Menory Card m structions as you are prompted by the Setur Printer Data Collection program Zo UD x 93 9 S coe a oO 7 Chapter 3 51 Main Menu Utility Procedures Memory Cards Memory Cards The slot on the front of the Test Set is used for memory cards The slot is used for the following e Storage of save recall registers e Loading of software either HP or self written e Collecting data only when using software e Upgrading firmware or software Me
38. he eoupter erigee l oupler Bridge measurement i SRC e il ao Z Device under test gt Termination Cc Zo UD x 93 o S coe a oO oO Chapter 3 63 Main Menu Utility Procedures Measuring Swept Return Loss Figure 3 7 64 Maximum Hinin The plot in Figure 3 7 is for a cellular band antenna swept from 800 MHz to 999 MHz The plot and the text above it indicates that the maximum return loss is at 885 4 MHz This is the point where the antenna is radiating the maximum amount of signal being fed into it from the return loss bridge and therefore the Test Set is receiving the least amount of reflected returned energy back Swept Return Loss Measurement Results TESTS IBASIC Controller __ Proceed to the run the 20 5 dB 4 MHz return loss 20 5 INEEN test again or to select a different test M Save Plot to an initialized writeable PC save Plot card See Memory Cards on page 52 Scr Dump mas Perform a Screen 840 880 920 960 1000 Freauency MHz Dump to print the screen to a connected printer See Printing on page 61 Chapter 3 Main Menu Utility Procedures Tracking Generator Tracking Generator The tracking generator is typically used for measuring return loss and insertion loss It also allows for quick and accurate characterization of filters duplexers combiners and RF to IF conversions Broadband RF devic
39. he Inst Contig key IftheRF Display field is set to Chan for channel tuning you also need toset theRF Chan StdfieldtoLs Amps totell the Test Set you are testing Land base Station AMPS radios This automatically sets the correct 45 MHz frequency offset needed to generate reverse channel signals and analyze forward channel signals for an AMPS base station If you do not know the channel number of your base station but know thetransmit and receive frequencies set the RF Display fieldtoFreq You can then enter these frequencies directly for the RF generator and RF analyzer during tests Configuration to Use Channel Numbers for RF Generator and Analyzer Settings INSTRUMENT CONFIGURE RF Display Ref Select Firnware Frea Chan Auto 603 04 RF Chan Std Ext Ref In Total RAM eH ANER O 928 kB Beeper Choices Serial Ho 5 Duplex Dut Frane Clock US3 7120053 a N AMER PCS TEPlay KOR PCS 0 Output User Mssas Yes No kor pcs 1 SME Antenna In MS AMPS Range Hold HSL NAMPS Ort COMA TB ua eh Wane MSU NAMPS LSL NAMPS LSM NAMPS Statet Auta RFGen Volts 10 ohnent Chapter 3 Main Menu Utility Procedures Using Channel Numbers to Set Analyzer and Generator Frequencies RF Chan and Tune Freg Fields NOTE Chapter 3 All of the test procedures in this document assume you are using channel tuning If you are using frequency tuning enter the frequency in the app
40. l 303 649 5512 F ax 303 649 5787 Western USA Sales and Service Hewlett Packard Company 1421 South Manhattan Avenue Fullerton CA 92631 Sales Tel 714 999 6700 Fax 714 778 3033 Service Tel 714 758 5490 Fax 714 778 3033 United States of America Customer Information Center Hewlett Packard Company Tel 800 752 0900 6 00 am to 5 00 pm Pacific Time Parts Direct 1 800 227 8164 South Eastern Europe Sales and Service Liebigasse 1 P O Box 72 A 1222 Vienna Austria Telephone 43 222 2500 0 Telex 13 4425 Hewlett Packard Ges m b h European Multicountry Region Sales and Service Hewlett Packard S A P O Box 95 150 Route dv Nant_dl_AVRIL CH 1217 Meyrin 2 Geneva Switzerland Telephone 41 22 780 8111 Fax 41 22 780 8542 Northern Europe Sales and Service H ewlett Packard Nederland B V Startbaan 16 1187 XR Amstelveen The Netherlands P O Box 667 Telephone 31 20 5476911 X 6631 F ax 31 20 6471825NL 10 Main Menu Asia Sales and Service H ewlett Packard Asia Ltd 22 30 F Peregrine T ower Lippo Center 89 Queensway Central Hong Kong G P O Box 863 Hong Kong Telephone 852 848 7777 F ax 852 868 4997 J apan Sales and Service Y okogawa H ewlett Packard Ltd 3 29 21 Takaido Higashi Suginami Ku Tokyo 168 Telephone 81 3 3331 6111 Fax 81 3 3331 6631 International Sales Branch Headquarters Sales and Service Hewlett Packard S A
41. liarization with safety markings and instructions before operation This product has been designed and tested in accordance with IEC Publication 1010 Safety Requirements for Electronic Measuring Apparatus and has been supplied in a safe condition This instruction documentation contains information and warnings which must be followed by the user to ensure safe operation and to maintain the product in a safe condition SAFETY SYMBOLS Indicates instrument damage can occur if indicated operating limits are exceeded Refer to the instructions in this guide Indicates hazardous voltages Indicates earth ground terminal A WARNING note denotes a hazard It calls attention toa procedure practice or the like which if not correctly performed or adhered to could result in personal injury Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met A CAUTION note denotes a hazard It calls attention to an operation procedure practice or the like which if not correctly performed or adhered to could result in damage to or destruction of part or all of the product Do not proceed beyond an CAUTION note until the indicated conditions are fully understood and met Safety Considerations for this Instrument Main Menu WARNING WARNING This product is a Safety Class I instrument provided with a protective earthing ground incorporated in the power cord The mains plug shall only be inserted
42. ment you need Table 1 Document Navigation Document Part Number Usage CDMA Application Guide E 6380 90016 Usethis manual for basic CDMA measurements and for getting started with the Test Set AMPS Application Guide E 6380 90017 Usethis manual for making AMPS base station measurements Reference Guide E 6380 90019 Usethis manual for screen and field descriptions and general operation information about the Test Set Programmer s Guide E 6380 90018 Use this manual to learn HP IB syntax and for learning how to program the Test Set Assembly Level Repair Guide E 6380 90015 Use this manual to perform calibration on the Test Set and for general service information 16 Main Menu Getting Started with AMPS Test This chapter introduces you to the HP 8935 CDMA Cellular PCS Base Station Test Set and its AMPS functions For information on other functions in the Test Set see Which Document is Required on page 18 To proceed immediately to the test procedures see AMPS Tests You Can Perform on page 30 17 Main Menu O mi vo 9 i oO Qa gt gt pe D 13 dey9 Getting Started with AMPS Test About the Test Set About the Test Set Product Description This Test Set helps you install commission and maintain AMPS base stations It also allows you to test CDMA base stations This guide discusses AMPS testing For m
43. mory Cards and Intialization There are several types of memory cards available and the following cards are used with the Test Set e SRAM used for save recall and data storage e Flash ROM used when upgrading firmware e OTP One Time Programmable used for HP software Flash ROM cannot be used for collecting data and Save Recall Data cannot be loaded on Flash RAM and OTP cards with the Test Set s memory card slot SRAM can be initialized with the Test Set Initializing SRAM Cards for Save Recall and Data Collection 1 Insert the SRAM card into the slot If the card is uninitialized a message will appear at the top of the display 2 Press shift and 10 Contg to display the O CONFIGURE screen 3 Using the knob locate the FORMAT CARD field 4 Select the FORMAT CARD field A prompt will appear at the top of the display Pressing Yes will erase and initialize the card 52 Chapter 3 Main Menu Oscilloscope The built in 50 kHz oscilloscope provides Utility Procedures Oscilloscope multiple triggering formats internal and external single shot and pre trigger viewing for single events full marker capability with automatic level and time readout Time division volts division and vertical offset are displayed and can be changed using the front panel knob Input to the Oscilloscope SCOPE is provided from various sources including direct inputs to the Audio Input and Modulation Input connectors Oscilloscop
44. n and Preset was pressed to establish a known instrument state O You have configured the Test Set for channel tuning see Using Channel Numbers to Set Analyzer and Generator Frequencies on page 68 You have specified any gains or losses in your test system see Compensating for Signal Losses and Gains in the Test Setup on page 33 Test Procedure 1 Turn off the base station s RF transmitter A transmitter can be damaged if it is not transmitting into a specified load such as an antenna power amplifier duplexer or power meter with a 50Q input impedance 2 Verify that the transmitter s rated RF power or the level out of the power amplifier if applicable does not exceed the level printed next to the Test Set s RF IN OUT connector 3 Connect the transmitter s RF output to the Test Set s RF IN OUT port Turn off the voice modulation to the transmitter Turn off data modulation to the transmitter Enable SAT transmission N DO WwW A Press Shift RF An AF Anl to access the AF ANALYZER screen 36 Chapter 2 Main Menu Testing AMPS Base Stations Transmitter SAT Frequency and Deviation 8 Set theFilter 2 fieldto6 kHz BPF This helps remove unwanted noise ta ____ kHz FA Deviation kHz TR Power Po kHz 0 00002 AF Anl In Settling Goin Cntl Audio In Lo FM Demod Slow Fast uto Hold 600 To Hi Filter 1 Pk Det To Input Gain 20 dB De Enpe Gain 0 dB
45. nd SAT off 3 Connect the base station receiver s inputs to the Test Set s DUPLEX OUT port 4 Connect the receiver s audio output to the Test Set s AUDIO IN port s Unless the receiver s audio out amplifier is not referenced to chassis ground you should only connect tothe AUDIO IN HI port For floating output amplifiers see the HP 8935 Reference M anual for information on using the AUDIO IN LO connection 5 Press CDMA Gen to access the CDMA GENERATOR screen 42 Chapter 2 Main Menu Testing AMPS Base Stations Receiver Sensitivity SINAD 6 Set thecw RF Path field to Bypass This turns off the IQ modulation used for CDMA tests EF Channel Anplitad dBA Gen BREC Le Gea Made CH RF Path PH Or fget Set to Bypass Dutau Fort Elen ber Data Race 7 Press SHIFT RFAnI AF Anl to access the AF ANALYZER screen 8 Set theAF Anl Infield toAudio In 9 SettheFilter 1fieldtoc Message FA Gaudet ian aa Set to Audio In I Set to C Message inut Gain J EAP Gain Malih Wai T d Seeaker ALL darek Fre EH 10 Press the RF Gen key to access the RF GENERATOR screen 7 5 vo gt U wn w o 77 w 2 O 5 wo 11 Change the lower audio measurement to SINAD This is done by selecting the existing measurement and choosing SINAD from a list of choices 12 Set the AFGen1 To field toFM and turn iton 2 9 kHz using the On Off Key
46. ngratulations 27 connections base station 32 FM Loopback test 23 conventions used in his manual 15 Index Main Menu 71 Index D E Data Deviation test 38 entering test system losses and DC level gains 33 measuring 70 European Call Center 19 DC volts measuring 70 Displaying an FM Carrier 26 Duplex Out field 33 DUPLEX OUT port 32 losses 33 overpower 30 72 Main Menu F fields selecting 24 FM Carrier analyzing 26 displaying 26 FM Loopback test 23 FM Signal displaying 23 FM signal generating 24 frequencies setting analyzer and generator 68 Frequency Error test 34 Index Index G generating an FM signal 24 Getting Help 19 Getting Started 17 global user keys 66 assigning 67 releasing 67 H help how to get 19 online 57 screen display 57 hot keys setting 66 l IBASIC Programs 21 in this manual 15 INSTRUMENT CONFIGURE screen 33 HP Direct Canada 19 Korea 19 HP IB communications via the serial port 59 HP IB controller internal to the Test Set 21 HP IB port controlling 58 modes 58 Index 73 Main Menu Index K k1 k2 k3 k4 k5 local user keys 66 kT k2 k3 global user keys 66 knob using 24 Korea HP Direct 19 74 L local user keys 66 assigning 66 preassigned 66 releasing 67 Loopback Test 23 Main Menu M manual operation 21 manual testing
47. ns and their associated controls is discussed in the Reference Guide HP part number E 6380 90019 e Detailed operation of the Test Set s spectrum analyzer and oscilloscope Although there are basic explanations in this manual more detail is provided in the Reference Guide concerning the various control menus and fields available e How to control your base station switch system or any other software or hardware associated with your cell site equipment Each manufacturer and cellular service provider has their own cell site control and base station configuration procedures that go beyond the scope of this documentation e How to perform BASIC programming operations such as writing editing copying or cataloguing programs Programming the Test Set is explained in the Programming Manual HP part number E 6380 90018 and the BASIC language is explained in the HP Instrument BASIC User s Handbook HP part number E 2083 90005 Conventions Used in This Manual The following conventions are used throughout this manual to help clarify instructions and reduce unnecessary text Test Set refers to the HP 8935 Test Set keys are indicated like this Preset Test Set screen information such as a measurement result or an error message is shown like this TX Power 7 21 W 15 Main Menu Which Documentis The following documents are part of the HP 8935 document set Use the Required table to help you decide which docu
48. o the Test Set s memory IBASIC programs Chapter 1 You can obtain an IBASIC program in two ways either write it yourself or purchase a software package from Hewlett Packard To write programs yourself refer to the Programmer s Guide included with the Test Set s documentation Many of HP s software packages are manufacturer specific packages M anufacturer specific software packages provide automated testing of the manufacturer s base station to greatly reduce test times and provide test setup repeatability Once configured the software typically controls both the base station and the Test Set and prompts the user to make the required connections during testing Test results can be printed and or saved to a file for later use Contact your local HP Sales Office to find out which software packages are currently available 21 Main Menu O mi vo 9 i oO a gt gt pe D 13 dey4 o Getting Started with AMPS Test Maximizing the Accuracy of Your Measurements Maximizing the Accuracy of Your Measurements Calibration This Test Set is designed to make highly accurate measurements However to ensure that you have the most accurate measurements available you can perform the following tasks You should calibrate the Test Set whenever you change or add an internal assembly You may want to calibrate when you upgrade firmware See the Assenbly Levd Repair Manual for calibration procedure
49. or audio test signals and a laptop computer running a control program to control the base station A power splitter is used for testing the receiver ports Although this is a common setup for performing tests audio and RF connections to base stations and the ways base stations are controlled vary among manufacturers Figure 2 1 Connections Between the Test Set and the Base Station Audio Audio Out In H E CO RF IN OUT Port High Power RF Input DUPLEX OUT RF Gen Out 1 ANT IN lt 60mW Power Splitter NY TX Mod RX Audio Audio Test Signal Audio Signal breakout port Test Interface Laptop Running Control Program at Control 4 TX y AE Recel Receive B 32 Main Menu Chapter 2 Testing AMPS Base Stations Compensating for Signal Losses and Gains in the Test Setup Compensating for Signal Losses and Gains in the Test Setup Signal losses or gains through cables splitters combiners connectors amplifiers or coaxial switches must be accounted for to ensure measurement accuracy These values are entered in the INSTRUMENT CONFIGURE screen press the Inst Contig key
50. ore information about CDMA testing refer to the CDMA Base Station Tests Applications Guide The Test Set contains an RF signal generator RF analyzer AF analyzer and AF generator to test AMPS base stations The following tools are also included Code Domain Analyzer CDMA Analyzer CDMA Generator Spectrum Analyzer Power Meter Oscilloscope AC DC Voltmeter IBASIC controller Batteries There are two methods the Test Set uses to back up its RAM Oneisa set of two AA batteries mounted inside the rear panel of the Test Set You must periodically change these batteries The second method of RAM backup is an internal battery It is not user serviceable Failure to take prompt action may result in loss of RAM data including IBASIC programs and SAVE RECALL states stored in the RAM To change the AA batteries use the following procedure 1 Turn off power and unplug the Test Set 2 Remove the six screws in the rear panel using a TX 15 TORX screwdriver 3 Remove the rear cover 4 Replace the AA batteries Do not use rechargeable batteries 5 Replace the rear panel 18 Chapter 1 Main Menu Getting Started with AMPS Test About the Test Set Getting Help If you have problems using this Test Set and cannot find the solution in these documents or the help screens please use one of the following contacts Your local or regional sales office see Regional Sales and Service Offices on page 12 U S Call Center 800 542 4844 Kor
51. red center frequency of the base station to the AMPS channel standard The resulting difference is the frequency error also called the frequency offset The measurement can be displayed in frequency units Hz KHz MHz or in parts per million ppm Measurements are made with all modulation turned off The transmitter s power can be measured any time the transmitter is keyed but may not be accurate unless all modulation is turned off Transmitter power may be specified by the manufacturer in units of watts W milliwatts mW dBm Volts V or millivolts mV Prerequisites The following conditions must be met before testing O The Test Set is turned on and Preset was pressed to establish a known instrument state You have configured the Test Set for channel or frequency tuning as necessary see Using Channel Numbers to Set Analyzer and Generator Frequencies on page 68 You have specified any gains or losses in your test system see Compensating for Signal Losses and Gains in the Test Setup on page 33 Begin Testing 34 1 Turn off the base station s RF transmitter A transmitter can be damaged if it is not transmitting into a specified load such as an antenna power amplifier duplexer or power meter with a 50Q input impedance 2 Verify that the transmitter s rated RF power or the level out of the power amplifier if applicable does not exceed the level printed next to the Test Set s RF I
52. respectively F or indoor use only This product has autoranging line voltage input be sure the supply voltage is within the specified range Ventilation Requirements When installing the product in a cabinet the convection into and out of the product must not be restricted The ambient temperature outside the cabinet must be less than the maximum operating temperature of the product by 4 C for every 100 watts dissipated in the cabinet If the total power dissipated in the cabinet is greater than 800 watts then forced convection must be used To prevent electrical shock disconnect instrument from mains line before cleaning Use a dry cloth or one slightly dampened with water to clean the external case parts Do not attempt to clean internally Main Menu Product Markings CE the CE mark is a registered trademark of the European Community A CE mark accompanied by a year indicated the year the design was proven CSA the CSA mark is a registered trademark of the Canadian Standards Association CERTIFICATION H ewlett Packard Company certifies that this product met its published specifications at the time of shipment from the factory Hewlett Packard further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the I nstitute s calibration facility and to the calibration facilities of other International Standards Organiz
53. ropriate field s When you use channel tuning the RF ANALYZER and RF GENERATOR screens displays an RF Channel field for entering the channel to tune to or generate When you use frequency tuning the RF ANALYZER screen replaces theRF Channel field with the Tune Freq field for direct frequency entry The RF GENERATOR screen replaces the RF Channel field with the RF Gen Freq field For AMPS Base Station tests remember that there should always be a 45 MHz separation between the transmit and receive frequencies transmit frequency is 45 MHz greater than the receive frequency 69 Main Menu Cc lt Uv iv iv Qa iv o i o pel e wo Utility Procedures Voltmeter Voltmeter A voltmeter is availablein the Test Set and can measure low level dc or ac voltages The input to the voltmeter is controlled by the AF Anl In field in the AF ANALYZER screen CAUTION Do not exceed the rated input tothe Test Set for theDc Level and AC Level measurements The connector best suited to making ac Level and dc Level measurements is the AUDIO IN port Measuring AC Level and DC Level 1 2 3 70 Press shift then RF Ani AF Anl to go to the AF ANALYZER screen Select AF Anl In and chooseAudio In Select Audio In Lo and choose Gna This sets the AUDIO IN LO port to ground which allows you to measure voltage at the AUDIO IN HI port Attach a probe for example a 1 1 oscillos
54. s TX Power Temperature Compensation 22 The Test Set is internally compensated H owever power measurement calibration can be optimized for temperature changes using the TX Pwr Zero field on the RF ANALYZER screen The new calibration factors are stored in RAM until the next time the routine is used To have the Test Set zero the TX Power measurement automatically when needed set the Auto Zero field on the RF ANALYZER screen to Auto During operation the Test Set will temporarily halt the TX Power measurement as it is calibrated This can happen during a measurement If interrupting the measurement is a problem for your test setup set the Auto Zero field to Manual and select TX Pwr Zero whenever you want to manually calibrate the measurement Chapter 1 Main Menu Getting Started with AMPS Test Display an FM Carrier Signal Loopback Test Display an FM Carrier Signal Loopback Test Since an AMPS base station is basically a continuous wave CW FM signal this section will guide you through the process of generating and displaying an FM signal at a cellular band frequency It is intended to make you feel more comfortable with using the Test Set If you are ready to begin testing proceed to Chapter 2 NOTE In the following operating example you enter a common frequency for the RF generator and RF analyzer tocreate and view the Test Set s own signal However typical AMPS base station testing uses channel assignments
55. section Audio Out for the signal present at the AUDIO OUT connector 4 The input to the oscilloscope is displayed on the SCOPE screen Selecting the Oscilloscope s Filters 1 Press shift then RF Ani AF Anl to select the AF ANALY ZER screen 2 Select the Scope To field A list of choices should appear 3 Select the desired filtering for the signal 54 Input if you want no filtering dc coupled Filters to route the audio to the oscilloscope after passing through filters 1 and 2 ac coupled De emp to route the audio to the oscilloscope after passing through filters 1 and 2 and the de emphasis circuitry ac coupled Notch to route the audio to the oscilloscope after passing through Filters 1 and 2 the deemphasis circuitry and notch filter circuitry ac coupled Chapter 3 Main Menu Utility Procedures Oscilloscope Triggering the Oscilloscope You can control following triggering features of the oscilloscope Chapter 3 Trigger external or internal Automated or normal triggering Continuous or single shot triggering Trigger level Trigger delay The oscilloscope is triggered using the Trigger menu Select this menu with the following procedure 1 Press shift then Spec Ani Scope to goto the SCOPE screen 2 Select the Controls field then choose Trigger from the list of choices 55 Main Menu i lt v x e iv iv Qa iv o i gt D pel O
56. t of the power amplifier if applicable does not exceed the level indicated next to the Test Set s RF IN OUT connector 3 Connect the transmitter s RF output to the Test Set s RF IN OUT port 4 Connect the transmitter s audio modulation voice input to the Test Set s AUDIO OUT port Enable the transmitter s audio speech modulation 5 6 Turn off any modulation signals to the base station other than audio 7 Press the RF Ani key to access the RF ANALYZER screen 8 Enter the transmitter s channel number in the RF Channel field 40 Chapter 2 Main Menu Chapter 2 Testing AMPS Base Stations Transmitter Maximum Voice Deviation 9 Press the RF Gen key to access the RF GENERATOR screen 10 Set the AFGen1 To field toAudio Out anda level of 50 mV kHz FH Deviation khz TR Power P RF Channel AFGent Frea AFGen2 Frea kHz kHz AFGeni To AFGen2 To Mod In To Audio Out audio Out Fh Initially 50 mV SEET a FM Coupling Audio Out AC DC AC DC OC FM Zero 11 With the cursor still positioned in front of the level setting 50 mV press the Incr Set key and enter 20 dB using the keypad 12 Turn on the transmitter 13 With the cursor still positioned in front of the level setting 50 mV press the up arrow key once to increment the level by 20 cB 14 Read the FM deviation 15 Vary the AFGenl Freq from 300 Hz to 3 KHz and observe the FM deviation at each frequency Devia
57. the RF level used when mea suring the loss of sensitive devices and Freauency Ranae 4 1000 of 1710 1990 MHz EC to minimize the amount of transmitted Please reduce the DUPLEX GUT power level power during the test if necessary ames lei ane Select Begin Tst k1 to continue Figure 3 6 Swept Return Loss Measurement Connections TESTS IBASIC Controller _ _ roceed when ready to continue I Connect as shown belou NOTE HP 8935 SRC is also marked IN or TRACKER REFL is ANT DUPLEX RF also marked ANALYZER gt M Two 6B attenuators pads two short IN OUT IN OUT or COUPLED and DUT cables and the return loss bridge are 1h geen tr TESI used to establish a calibration refer 7 ence without the device under tesi connected Press Proceed k1 to con tinue As indicated by the NOTE on the drawing your return loss bridge may be marked differently than shown Short or Open TESTS CIBASIC Controller __ Flease press Proceed when ready to continues Gre Connect as shown below When measuring the swept return loss EE Note ae of a transmission line that is not ter or TRACKER REFL is ANT DUPLEX RF also marked ANALYZER M minated at an antenna terminate the A alr eit ce ROPER Onn line into a 50Q load 5 2 o is also marked TESTs OUT or DEVICE After connecting your device under Ml E test press Proceed k1 to make t
58. tion must not exceed the rated system specification of 12 kHz at any time L RF GEHERATOR _ rror FM Deviation Watch the 0 088 9575 lt q FM Deviation TX Pover while 38 8 1 00000 changing Increment the AFGen1 AF Gen1 RF Channel AFGeni Frea aee Fr Freq from ae by L3_ANPS kHz kHz 300 Hz to aao iti paura Hod In To 3 kHz Atten Hold ny a One Git Audio Out 0 ac 16 Disconnect the cable to the transmitter s audio modulation input connected in step 4 to reduce the chance of errors in your next transmitter test 41 Main Menu oO 7 vo gt U wn w 2 7 oO w 2 O wo z saydeyo Testing AMPS Base Stations Receiver Sensitivity SINAD Receiver Sensitivity SINAD This test measures the receiver s ability to demodulate voice signals from very low RF carrier levels Prerequisites The following conditions must be met before testing O The Test Set is turned on and Preset was pressed to establish a known instrument state O You have configured the Test Set for channel tuning see Using Channel Numbers to Set Analyzer and Generator Frequencies on page 68 You have specified any gains or losses in your test system see Compensating for Signal Losses and Gains in the Test Setup on page 33 Test Procedure 1 Turn off the base station s transmitter 2 Turn the base station s radio squelch data a
59. uency and Deviation on page 36 e Transmitter Data Deviation on page 38 e Transmitter Maximum Voice Deviation on page 40 e Receiver Sensitivity SINAD on page 42 e Receiver Squelch Threshold on page 45 Transmitter power TX Power can only be measured through the Test Set s RF IN OUT port Verify that the signal connected to this port does not exceed the limits printed by the port If you hear a loud warbling sound from the Test Set turn off your transmitter immediately This is the over power alarm warning that instrument damage may occur Caution Turning the Test Set off at this point does not protect the internal circuitry Also removing the cable from the RF IN OUT port without turning the transmitter off may damage your transmitter or power amplifier due to an impedance mismatch The ANT IN port is only used for analyzing very low level signals lt 60 mW Never attempt to measure a transmitter s power directly using the ANT IN port as instrument damage may occur The DUPLEX OUT port is only used to provide RF signals to the base station s receive port s It must not be connected to the base stations transmit port or damage may occur to the Test Set Chapter 2 Main Menu Testing AMPS Base Stations What You Need to Know to Begin What You Need to Know to Begin Y ou need to know how to control the base station and the basic operation of the Test Set before you can test your base station
60. ured via BASIC commands See the Programmer s Guide for commands which control these ports 59 Main Menu lt v e 9 O a o oO 77 i gt D pel O wo Utility Procedures Ports HP IB Serial and Parallel Parallel Ports 60 There are two parallel ports on the Test Set Parallel Port 15 is the only parallel port that can be used for printing It can be selected in the PRINTER CONFIGURATION screen Both parallel ports Port 15 and Port 16 may be used for controlling a base station The port can be put in an input or an output mode The data is then written or read under IBASIC control When in either of these modes the printing function on Parallel Port 15 is disabled Chapter 3 Main Menu Utility Procedures Printing Printing You can print from the Test Set via Parallel Port 15 Serial Port 9 or the HP IB port Note that data collection is not the same as printing Data collection can only be done from a software program Configuring the Test Set for Printing 1 Press shift then Print Printer Config to display the PRINTER CONFIGURE screen 2 Select the Model field and choose the printer that most closely matches your printer 3 Select the Printer Port field and choose the port you will connect the printer to If necessary use the I O CONFIGURE screen to set up addresses and communication modes a SERIAL PORT 9 This is the uppermost serial port
61. wo Utility Procedures Oscilloscope Using the Marker 56 The marker is used to help you make measurements with the oscilloscope By repositioning the marker you can measure the level and time The Marker is controlled using the Marker menu Select this menu with the following procedure 1 Press shift then Spec Ani Scope to goto the SCOPE screen 2 Select the Controls field the choose Marker from the list of choices Chapter 3 Main Menu Online Help Utility Procedures Online Help The Test Set contains help screens which briefly identify the most commonly used features of the Test Set Access the help screens by pressing the Help key Use the knob to select the Help Topic of interest Pressing the Prev key allows you to switch between the HELP screen and the previous screen you had accessed This is particularly useful when you are following a procedure described in the HELP screen Help Screen Display Figure 3 3 Help Toric pamiji Help Screen Display Measurements THis measure Topic Choices received sia see Channel 1 Connect y reference si Measurement Measurement Measurement Measurement Measurement Measurement Measurement Measurement Measurement Measurement Measurement Measurement ee Press the Enter your t Power measur a Set the F interval pra Chapter 3 PCOMA Measurements COMA Measurements COMA Measurements COMA Measurements COMA Measurements
62. y set AM and or FM are automatically turned back on when returning tothe RF GENERATOR screen Figure 1 2 Setting Up the RF Generator Fras Errar EF Gen Freq Af Geni Frea Enter 850 MHz EX Ane itude AP bent Te Fi Ta Mod In Ta Enter 0 dBm _ F FE JER Aiten Hold KH Turn on FM FH Coup ins Hut emt Fort Select DUPLEX gt 4aydeyo ra mi vo 9 i oO Qa gt gt pe D Chapter 1 25 Main Menu Getting Started with AMPS Test Display an FM Carrier Signal Loopback Test Analyzing an FM Carrier Signal Figure 1 3 Figure 1 4 26 1 Press the RF Ani key to go to the RF ANALYZER screen 2 Select Tune Freq and use the keypad to set the frequency to 850 000 MHz Notice that the Frequency Error TX Power FM Deviation and AF Frequency for the signal are automatically displayed Default Digital Measurements for the FM Carrier MHz Input Atten Sauelch Fixed Sensitivity RF Cnt Gate i EBETE Hornnal Hish ns Frea Error kHz FM Deviation kHz 0 000 16 TX Power HHE I 0 00086 0 99998 Tune Frea Input Fort IF Filter TX Pur Meas Peak Sanele Auto zero futo Moanual Th Pur zero Zero 3 Press the Spec Ani key to go tothe SPECTRUM ANALYZER screen 4 Thesignal is displayed 5 Select Span and set it to30 000 kHz to get a good view of the modulated signal See Figure 1 4 FM Carrier Signal

HP Cell Phone Accessories 8935 User's Manual

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