Agilent 8921A Users Guide

Download

Motorola AMPS/NAMPS Cell Site Test Software

HP 11807B Option 040 Software User’s Guide

for the HP 8921A

Software Version B.01.00 and above

HP Part No. 11807-90153

Printed in U. S. A.

May 1997

Rev A

RESTRICTED RIGHTS LEGEN D

Use, duplication or disc losu re by the U.S. Gover nment is subj ect to restr ictio ns as set forth in su bparagr aph ( c) (1) ( ii) of t he Right s in Techni cal Data a nd Computer Software clause in DFARS 252.227-7013.

Hewlett-Packar dCompany 3000 Hanover Street Palo Alto, CA 94304 U.S.A.

Rights for non-DOD U.S. Government Departm ents and Agencie s are as set forth in FAR 52.227-19 (c) (1, 2)

Contents

1 Product Description

About the Test Software 24

About the Test System 25

Testable Cell Site Equipment 26

Using the Test Software 27

Firmware Differences 28

To Setup Printer Using HP 8921A FW Below Rev A.14.00 32

Table of Contents

Getting Started 34

To Turn On and Set Up the Test Set: 35 To Select T est Software Procedure Location: 36 To Select T est Software Procedure Location: (Co ntinued) 37 To Load and Run Tes t Software: 38 To Load and Run Tes t Software: (Continued) 39 To Change the Order of Tests: 40 To Change the Order of Tests: (Continued) 41 To Select URDM or RDM Frequency/Level test: 42 To Select URDM or RDM frequency/level test: (Continued) 43 To run TEST_02 URDM or RDM Fr equency/Level: 44 To run TEST_02 URDM o r RDM Fr equency/Level: (Continued) 45

Learning To Use the Test Software 46

In this Manual 47

Manual Contents 48 Conventions Used 49

Contents

2 Equipment

Cell Site Equipment 52

Memory Ca rd s 53

Test Software Memory Cards 54 SRAM Cards 55 Memory Card Storage Space 56

HP 8921A Cell Site Test Set 57

Test Set Firmware 57 Test Set Op tio n 57

Other Software Tools 58

Peripheral Items 59

HP Supplied Peripheral Items 60

61 RF and Audio Switching Arrangements 61 RF and Audio Switches 61 Switch Control Input Buffer 62 RF Couplers 62 50-Ohm Terminations 62 Cables, A dapters, and Connecto rs 63 HP Supplie d Connector Kit 65 VSWR and Cable Fault Ancillary Equipment 65 High Accuracy Frequency Reference 65

Documentation 66

Vendor Information 67

Contents

Table of Contents

3 Setting Up

Equipment Connections 70

Receiver RF Connections 74 Transmitt er RF Connections 74 Audi o C on nect ions 7 5 Conne ction for

RS-232 Base Station Control 75 Serial Port Connections for Dat a C ollection 75 Printer Connection 76 Serial Port Location 76 Parallel Port Location 78 Disk Drive Connections 78 Radio Interface Connections 79 DC Power to the RF and Audio Swit ches 80

Determining Calibration Parameters 81

Transmitter Path Loss Calibration 81 Receiver Path Loss Calibration 85 Referen ce D istribution Module Level Correction Factor 88 Combiner to Test Set Path Loss Factor 90

Procedures 91

Saving a Procedure 92 Loading a Procedure 94 Deleting a Procedure 94 Securing a Procedure 95 Un-Securing a Procedure 96 Copying a Procedure 97

Entering Parameters, Pass/Fail Limits, and External Device Configuration 99

Parameters 99 Pass/Fail Limits (Specifications) 101 External Device Configuration 102

Making Entries in a Test Set Configuration Screen 10 8

Serial Ports 108

Contents

Serial Port Configuration 109 HP-IB Port C on f ig ur ation 112

Data Collection 113

Collection to an SRAM Card or Disk 113 Collection to a PC 116 Retrieving Data from an SRA M Card 116 Retrie ving Data from a D isk 118

Contents

Table of Contents

4 Running Tests

What are Tests? 120

TESTS 120 TESTs 120 Tests 121 Order of TEST s 121

TESTS (Main Menu) Screen 122

Starting the Program 124

When the Program Starts Running 130

Entering the Order of TESTs 132

TEST Configuration Settings 134

Test Execution Conditi ons 135

If Unit-Under-Test Fails: 135 Test Pr oced ur e Run Mo de: 135 Output Results For: 136 Output Results To: 136 Output Heading: 136

HP-IB Control Annunciators 137

Pausing or Stopping a TEST 138

Continuing a TEST 139

Test Time Summary 140

Saving Test Results 141

Contents

5 TESTs - Reference

USER Keys 144

All Cal 144 Clr Scr 144 Continue 144 Del Chan 144 Delet Stp 144 Disp Data 144 Done 144 HDII Loc

LD Loc NAMPS Loc 144

Insrt Stp 145 Key/Dekey 145 Laptop 145 LNA Offs 145 Next Wind 145 Next Chan 145 Next Ant 146 Page Up

Page Down 146 Prev Ant 146 Prev Chan 146 Print All 146 Prt Full 146 Re-test 146 Run 146 Run Test 147 Send ESC 147 Send FREE 147 Send TM 147 Send USE 147 Show Log 147 Skip Sens

Skip SAT Next Ant Skp N SSI 147

Sngl Step 148

Contents

Stop Test 148 Take It 148 Tns off

Tns quiet Tns loud 148

To Chan 148 Yes,

No 148

Zoom 148

-60 dBm

-90 dBm

-100 dBm 148

Table of Contents

TEST_01 - Laptop Emulator 149

Sending Commands 149 Using the

PC/Modem mode 150 Messages 151 Baud Rate 151 Base Station Password 152 Base Station Report 152 Exiting TEST_01 152

TEST_02 - URDM or RDM Frequency/Level 153

Selecting the T est State 153 Calibration Factor 153 Questions Displayed 154 Frequency Error Refers To 154 Tests 154 Pass/Fail Limits 155 Param eters 155

TEST_03 - Voice Transceiver 156

Selecting the T est State 156 AMPS or NAMPS 156 Calibration Parameters 157 Questions Displayed 157 Frequen cy Error 157 Keying the Transmitter 157 Tests 158

Contents

Pass/Fail Limits 159 Param eters 161

TEST_04 - Signaling Transceiver MANUAL Mode 163

MANUAL Mode 163 HDII or LD Equipment 164 Calibration Parameters 164 Questions Displayed 164 Tests 167 Pass/Fail Limits 167 Param eters 168

TEST_05 - Scanning Receiver MANUAL Mode 169

MANUAL Mode 169 AMPS or NAMPS 169 Connections 169 Calibration Parameters 169 Questions Displayed 169 Tests 171 Pass/Fail Limits 171 Param eters 172

TEST_06 - Combiner Adjustment 173

Calibration Parameter 173 Running TEST_06 - Com biner Adjustment 174 Questions Displayed 174 Test 174 Pass/Fail Limits 174 Param eters 174

TEST_07 - Wideband Data on an Active Voice Channel 175

Test 176 Pass/Fail Limits 176 Param eters 176

TEST_08 - Manual Switch and Calibratio n Aid 177

Routines 177 Pass/Fail Limits 178

Contents

Table of Contents

Parameters 178

TEST_09 - Calculate Transmitter Power 179

Avai la bl e Entri es 179 Pass/Fail Limits 180 Param eters 180

TEST_10 - Voice Channel Manual Test Mode 181

Pass/Fail Limits 182 Param eters 183

TEST_11 - Test Menu 184

Pass/Fail Limits 185 Param eters 185

Contents

6 Parameter s - Refer en ce

Parameter Descriptions 189

GN alwa ys cal si g/ scan [0= n o 1=yes] 189 GN auto exit adj [0=no xx=times in spec] 189 GN perform adj [0=n o 1=fail 2 =always] 189 GN perform extended tests [0=no 1=yes] 189 GN site Average Voice Level (AVL) (dBm) 189 GN sit e ha s L N As [0=n o 1 = yes] 190 GN site [0=non-wireline 1=wireline] 190 GN test state of [0=INS_OPT 1=MANUAL] 190 GN type of site [0=omni 1=sec .skip ant] 190 GN verify all select ions [0=no 1=yes] 190 RDM lev e l co rrecti o n fa ctor (dB ) 190 RX level for scanner DSA T detector (dBm) 190 RX level for scanner SAT detector (dBm) 191 RX level for voice DSAT/ D ST detecto r (dBm) 191 RX level fo r voice SAT/ST detector (dBm ) 191 RX path loss to antenna 1 (dB) 191 RX path loss to antenna 2 (dB) 191 RX path loss to antenna 3 (dB) 191 RX path loss to antenna 4 (dB) 191 RX path loss to antenna 5 (dB) 191 RX path loss to antenna 6 (dB) 191 RX/TX audio f req response step [.01-2.7] 191 SC fewer li nearity channels [0=no 1=yes] 192 SC skip items in scan test [0=no 1=yes] 192 TX output power for l evel 0 (Watts) 192 TX output power for l evel 1 (Watts) 192 TX output power for l evel 2 (Watts) 192 TX output power for l evel 3 (Watts) 192 TX output power for l evel 4 (Watts) 192 TX output power for l evel 5 (Watts) 192 TX output power for l evel 6 (Watts) 192 TX output power for l evel 7 (Watts) 192 TX output power for si gnaling unit (Watts) 192 TX path loss to combiner for adjustment (dB) 193 TX path loss to harmonic filter 1 (dB) 193

Contents

Table of Contents

TX path loss to harmonic filter 2 (dB) 193 TX path loss to harmonic filter 3 (dB) 193 TX path loss to harmonic filter 4 (dB) 193 TX path loss to harmonic filter 5 (dB) 193 TX path loss to harmonic filter 6 (dB) 193 TX path loss to harmonic filter 7 (dB) 193 TX path loss to harmonic filter 8 (dB) 193 TX perform loopback test [0=no 1=yes] 194 TX steppi ng PA p w r lvls tested [0-127] 194 TX peak voice limit step 194 TX voice/signal pwr use [0=anz 1=pwrmtr] 194 ZZZZ test mode [0=normal 1=demo] 195

Contents

7 Pass/Fail Limits (Speci fi cations) - Reference

Pass/Fail Limit (Specification) Descriptions 199

RDM frequency error (Hz) 199 RDM output level (volts peak to peak) 199 RX audio distortion (percent) 199 RX audio output level (dBm) 199 RX audio res ponse dev from -6 dB/ oct R1 (dB) 199 RX audio res ponse dev from -6 dB/ oct R2 (dB) 199 RX expandor track erro r < 0 dB (dB) 199 RX expandor track erro r > 0 dB (dB) 200 RX hum and noise ( dB) 200 RX scan and si g calibrati on reading (dBm ) 200 RX scan sig li nearity error (dB) 200 RX sensitivity with LNA (dBm) 200 RX sensitivity without LN A (dBm ) 200 RX sensitivity without LN A narrow mode (dBm) 200 RX SINAD at sensitivity spec (dB) 200 TX audio dist ortion (p ercent ) 20 0 TX audio res ponse dev fr om 6 dB /oct (dB) 201 TX compre ssor track error <0 dB (dB ) 201 TX compre ssor track error >0 dB (dB ) 201 TX data deviation (kHz) 201 TX DSAT deviation (Hz) 201 TX FM hum and nois e (dB) 201 TX frequency error (ppm) 201 TX loopback level (dBm) 201 TX output power error at level 0 (percent) 201 TX output power error at level 1 (percent) 202 TX output power error at level 2 (percent) 202 TX output power error at level 3 (percent) 202 TX output power error at level 4 (percent) 202 TX output power error at level 5 (percent) 202 TX output power error at level 6 (percent) 202 TX output power error at level 7 (percent) 202 TX output power erro r for signa ling unit (percent) 202 TX SAT deviation (kHz) 202 TX SAT frequency error (Hz) 202

Contents

Table of Contents

TX test point JK output (dBm) 203 TX voice deviation (kHz) 203 TX voice deviation nar row mode (kH z) 203 TX voice limiting deviation (kHz) 203 TX voice limiting deviation narrow mode (kHz) 203

Contents

8 Problem Solving

Base Station Control Difficulties 207

Data-Collection Function Does Not Work 208

Exiting the Program 210

Equipment Control 212

Memory Space Problems 213

Printing Problems 214

Test Results are Unexpecte d 215

Test Set Doesn’t Power Up 216

Unstable SINAD Readings 217

Contents

Table of Contents

A Appendix: Using the HP 3488A Switch/Control Unit 219

Contents

B Appendix: Test Set Measurement Settings 223

224

TEST_02 - URDM or RDM Frequency/Level 224 TEST_03 - Voice Transceiver 225 TEST_04 - Signaling Transceiver MANUAL Mode 229 TEST_05 - Scanning Receiver MANUAL Mode 230 TEST_06 - Combiner Adjustment 230 TEST_07 - Wideband Data on Active Voice Channel 230 TEST_08 -Manual Switch and Calibration Aid 230 TEST_09 - Calculate Transmitter Power 231 TEST_10 - Voice Channel Manual Test Mode 231

Contents

and Printer 233

Table of Contents

C Appendix: Cable Wiring Diagrams for Data Collection to PC

Contents

Glossary 235

Contents

Table of Contents

Index 239

Contents

Product Description

Chapter 1

Product Description

Chapter 1, Product Description

About the Test Software

The HP 11807B Option 040 Motorola AMPS/NAMPS Cell Site Test Software is used with the HP 8921A Cell Site Test Set, and various ancil lary equipment, to test the functionality of Motorola cellular telephone base stations. The Test Software package, as shippe d, co ntains the following items:

• HP 11807B Option 040 Cell Sit e Tes t So ftware Card, part number HP 11807- 10012

• HP 11807B Option 040 Test Software User’s Guide, part number HP 11807-90153

• Software licensing agreement, part num ber 5180-1566

• 128-kilobyte Memory (SR AM) Card (part num ber HP 85702A) for st oring customiz ed tes t pr o gram s and resu lts.

• Cable and adap tor for serial connection to the base station

• 6-Conductor RJ11 (m) — RJ11 (m) cable, part number 08921-61015

• RJ11 (f) — DB25 (m) adaptor, part number 08921-61016

The following features of the Test Softwa re simplify testing:

• The Test Software sends base station control comma nds automaticall y fr om th e Tes t Set via the RS-232 interface . The Test Softwa re also displays responses from the base station.

• The Test Software displays the location of an adjustment whenever adjustment is required.

• The Test Software displays a large meter on the Test Set screen and provides variabl e auditory feedback while adjustments are being made.

• The Test Software displays system interconnects on the Test Set screen whenever cable connections mus t change.

• The Test Software displays results of test s and pas s/fail indicat ions on the Test Set screen, and supplies the results and indications for printing or collecting in an HP Palmtop comp u t er, a P C , a di s k driv e , or a memory (S R A M ) ca r d .

• The Test Softwar e co n trols switche s that se lect the external RF or audio signal paths.

• The Test Software allows you to cha nge the order of TESTs, pass/fail limits, parameters, and extern al device configurations.

• The Test Software provi des that bas e stat ion control command s can be sel ecti vely sen t as the tests proceed.

• The Test Software pr ovides t ha t RF pa th losse s ca n be det ermined and a ccommod ated.

About the Test System

Chapter 1, Product Description

About the Test Sy stem

When the Test Software is used with the HP 8921 A Test Set and the various other equipment, the combined system is called the Test System. The following items make up the Test System:

• HP 11807B Option 040 Motorola AMPS/NAMPS Cell Site Test Software.

• HP 8921A Cell Site Test Set.

• Accessories:

• HP 83202A Option 040 Base Station Accessory Kit. or

• Other switch and in terconn ect arrangements.

In addition, it would be helpful to have available the RF Tools in the HP 11807A,E Option 100 System Support Tests software package. The Option 100 software package offers a range of tests that may be used as adjuncts to those in the Test Software.

Note that the following thre e tests that were in previous versions of the Test Software w ere rem o ved fo r this version (B.01.00):

• VSWR Swept Return Loss.

• VSWR Discret e Channel Return Loss.

• VS W R vs D ist an ce (cabl e f au l t)

Product Description

Chapter 1

These tests are now included the RF Tools section of Option 100 software package.

This system performs tests that determine the quality of the RF and audio performance of several types of Motorola AMPS and AMPS/NAMPS cellular base stations. Most of the measuremen t methods and specific ations use d for these tests are derived from Electronic Industri es Association st andards and procedures recommended by Motorola.

Chapter 1, Product Description

Testable C el l Site Eq uipment

Testable Cell Site Equipment

The Test System allows you to test Motorola HDII, HDII/NAMPS, and LD Base Stations. The firmware revision of the bas e station to be tested must be 4.3.2.1 or higher.

Specific equipment that you can te st includes voice transceivers, scan receivers, signaling transc eivers, combiners, power amplifiers, and universal refere nc e distribution modul es. The Test Software includes major adjustment procedures.

Using the Test Software

Chapter 1, Product Description

Using the Test Software

IMPORTANT CAUTION:

This Test Software can be used during routine cell site verification and after the installation or repair of cell site equipment. Base stations can be tested while in the In-Service Optimiz at ion Mode or in the Manual Mode. The Manual Mode must be used for some of the TESTs. There are instances in which it may be advantageous to choose one of these modes over the other.

Before you connect the Test Set to a base station, you should underst and the potential results of your act ions. Dropped calls, accidental modification of base stati on calibration data, and other undesirable effects can occur.

The next two sections will get you started learning to use the Test Software. The

first of the two, “Getting Started”, contains steps to follow if you have not run Test Software on a Test Set. The second of the two, “Learning to Use the Test Software”, describes steps that you should follow in continuing to learn to use the Test Software.

Product Description

Chapter 1

Chapter 1, Product Description

Firmware D ifferences

Firmware Differences

Firmware revision A.14.00 in the HP 8921A,D Cell Site Test Set introduced several enha ncements to the TESTS menus. Wit h th e enhance ments were cha nges to the menu structure used in the TESTS (Main Menu) screen and its sub-screens.

This manual is written for instruments with firmware revision A.14.00 and higher. To assist users with instruments with older firmware, this section summarizes the change s and shows the corr espondenc e between revis ion A.14 .00 screens and those of the earlier versions.

Chapter 1, Product Description

Firmw are D if fer ences

NOTE: If you are unsure of the firmware revision of your unit, press and release the SHIFT key

then press the DUPLEX key. A configuration screen will be displayed and the firmware revision is sho wn in the upper right of the screen. Contact Hewlett-Packard at 1-800-922-8920 for details on upgrading your instrument if desired.

Product Description

Chapter 1

Chapter 1, Product Description

Firmware D ifferences

Using the TESTS Menu Comparison

NOTE: The information in * and ** are for use rs of Test Sets with firmware revisions below

A.14.00. Please dis regard this materia l if your Test Set has a firmware revi sion of A.14.00 or higher.

The next two figur es show the TESTS (Main Menu) sc reens for the latest TESTS menu (figure 1 ) and the TESTS menu used in older firmware revisions (figure 2 ). The illustrations are intended to help you find the corresponding functions if you are working with older firmware revisions.

To use the comparison, follow these steps:

1. When you enc ounter a procedure or diagram referring to a TESTS (Main Menu) field

selection or name that d oes n ot appe ar on your T ESTS (Ma in Menu) (or ma y a ppear i n a different location on the display), refer back to these figures.

2. Loo k for t he sel ection desc ript ion or na me in figure 1 and no te the corres ponding l etter .

3. Look for the same letter in figure 2 and note whic h field (or sub-menu) is used in the

older firmware to access the screen or field.

4. Once in the sub- menus, the old a nd new scree ns are very similar a nd you shoul d be able

to use the docu me ntation as-is.

A B

C1 C2 C3 C4 C5

Figure 1 TESTS Main Menu for Firmware Revisions of A.14.00 and greater.

D C6 E C7

Chapter 1, Product Description

Firmw are D if fer ences

Product Description

C**

*See "To Setup Printer Using HP 8921A FW Below Rev A.14.00" on page 32

Chapter 1

C3 C1 C4 C2 C6 C5 C7

**Selecting Test Fu nctions

opens the Choices menu.

Figure 2 TESTS Main Menu for Firmware Revision Below A.14.00

Chapter 1, Product Description

Firmware D ifferences

To Setup Printer Using HP 8921A FW Below Rev A.14.00

1. Press the TESTS key.

2. Select Edit Cnfg from the Test Function field.

3. Po sition the cursor to the Inst# field and select it.

4. Rotate the knob until an empty Calling Name field appears, and select it.

5. Po sition the curs or to the Callin g Name field and select it.

6. Using the list of characters in the Choices menu , en t er th e w o r d PRI N TER . Select Done when co mplete.

7. Po sition the cursor to the Addr (address) field and select it.

8. Using th e DATA keypa d, ente r 9 for serial printers, 15 for parallel printers, or 70X for

HP-IB prin ters, then pr ess ENTER.

9. Po sition the cursor to the Options field (directly under Calling Name) and select it.

10. Using the list of characters from the Choices menu, the following command s may be entered. Separate the commands with commas (example; LN=60,START,END)

• LN equals the number of printed lines per page.

• START causes a form feed at the st art of each p r intout.

• END causes a fo rm feed at the end of each printout.

11. From the To Screen menu, select More.

12. From the Choices menu, select IO CONFIG.

13. For Serial Printers:

• Set the Serial Baud field and other serial communications fields listed under it to

correspond to your printer’s configurati on.

14. For HP-IB Printers:

• Position the cursor to the Mode field and select it.

•From the Choices menu, select Control.

• Position the cursor to the Print Adrs field and select it.

• Rotate the knob and select the HP-IB address of your printer.

• Position the cursor to the Print To field. Pressing the knob will toggle the

underlined selection. Selec t to underline HP-IB.

15. Press the TESTS key to return to the TESTS screen.

Chapter 1, Product Description

Firmw are D if fer ences

To print test results

1. Make sure that your printer is pr operly connected and configured as explained ea rlier

in this section.

2. Press the TESTS key.

Product Description

3. Po siti on t he curs or to the Output Results To: field (or the Output Destination field). Pressing the knob will toggle the underlined selection. Select to unde rline Printer.

4. Po sition the cursor to the Ou tput Heading field and select it.

5. Using the list of characters in the Choices menu, enter a printout heading (optional). Select Done when the heading is complete.

Chapter 1

Chapter 1, Product Description

Getting Started

If you have not run Test Software on a Test Set, follow the procedur e s shown in the following 11 illustrations to get started.

To perform this procedure, you will use an HP 8921A Cell Site Test Set and the HP 11807B Option 040 Test Software Card. If you wish to perfor m the steps with a base station connected, you will r equire the RJ-11 cable and RJ-11/DB25 adaptor to connect the base sta tion RS- 232 connector to the Test Set.

The procedure will guide you in running “TEST_01 - Laptop Emulator”, then in stopping TEST_01, and then in selecting and running another TEST.

Specifically, the procedure will guide you to:

• Turn-on and set up the Test Set.

• Insert a Test Software card.

• Load and run TEST_01 - Laptop Emulator.

• Stop TEST_01.

• Select and run another TEST.

If you wish to perform these steps with a base station connected, you must connect the Test S et RJ-11 Seri al B por t to the TTYMP #8 CSC Network Addre ss Connection. Do this before starting the steps. Se e "Connection for RS-232 Base Station Control," in chapter 3, on page 75.

For a description of TEST_01, see "TEST_01 - Laptop Emulator" on page 149. When you have complet ed these steps and feel that you understand the operation,

continue with the next secti on, “Learning to Use the Test Software”.

To Turn On and Set Up the Test Set:

Chapter 1, Product Description

Getting St ar ted

Do steps 1-5 in numbered order.

Press TESTS Press PRESET

CURSOR CONTROL

PUSH TO SELECT

(PRESET is a reset command that can be used at any time to start from the beginning.)

Insert Card

HP 11807B Opt 040

Product Description

Chapter 1

Press POWER

Wait about 20 secon ds for

a display to appear, th en go to step 3.

Turn page to list procedures on the memory card

Chapter 1, Product Description

Getting Started

To Select Test Software Procedure Location:

Follow Numbered Steps

Use the cursor control knob on the front panel to position the cursor and make selections.

Use figure on opposite page for reference.

Press the knob to select

Select Procedure Location.

Select

Select Procedure Location:

Position cursor at

Select Procedure Filename: and

select it.

Position

Select Procedure Filename:

Position Select

Note; cursor is positioned at

Select Pr oc ed u re Locatio n.

Select Procedure Locati on:

If previo us entries appear disregard them.

Position the cursor at Ca rd and

select it.

Position

Select

The Choices: menu s h ould

now appear as shown.

Choices:

Card ROM RAM Disk

Choices:

MOT_CS

Select

Turn page to load software

Reference Page

Select Procedure Location:

Select Procedure Filename:

Chapter 1, Product Description

Getting St ar ted

To Select Test Software Procedure Location: (Continued)

Choices:

MOT_CSChoices:

Card ROM RAM Disk

Product Description

Chapter 1

CURSOR CONTROL

PUSH TO SELECT

Knob

Rotate knob to position cursor. Press knob to select a fiel d.

Chapter 1, Product Description

Getting Started

To Load and Run Test Software:

Position cursor at MOT_CS

and selec t it.

Position

Select

Position cursor at Run Test

and select it.

Position

Select

After MOT_CS is loaded, TEST_1 - Laptop Emulator begins running.

If the base station is connected, you should see

characters on your display in the box label ed “Base Station Re s ponse”. See"Serial Port Connections for Data Collection" on page 75, and "TEST_01 - Laptop Emulator" on page 149.

Choices:

MOT_CS

Run Test Continue

Help

Note ; M O T _ C S is no w th e

selected proc ed ure filename.

Select Procedure Filenam e:

MOT_CS

The MOT_CS program is loading.

Loading program first time: 2 min. 30 sec.

After first time : 20 sec.

Press <CANCEL> to stop the

program.

CANCEL

If the bas e stat ion i s not connec te d, or if y ou wan t to e xit this TEST and run a new TEST, continue to step 5.

Turn page to select a new TEST

Chapter 1, Product Description

To Load and Run Test Software: (Continued)

Getting St ar ted

Product Description

Reference Page

Select Procedure Location:

Card

Select Procedure Filename :

MOT_CS

Run Test Continue

Help

CURSOR CONTROL

PUSH TO SELECT

Chapter 1

Choices:

MOT_CS

Knob

CANCEL

Rotate knob to position cursor. Press knob to select a field.

Chapter 1, Product Description

Getting Started

To Change the Order of Tests:

Press TESTS to display the

TESTS (Main Menu) scre e n.

If you are in IBASIC, press SHIFT, CANCEL before pressing TESTS.

TEST

The Order of Te sts sc reen i s now present on your CRT.

Use the Order of Tests screen to edit the TEST seque nce, sele ct a new TEST, or delete a

TEST.

Position cursor at Seqn Order of

Tests and select it.

Position

Channel Information

Freq Parm

Test Parameters Order of Tests

Seqn

Pass Fail Limits

Select

Spec Proc

Save/Delete Pr ocedure

Note; cursor is located in the Step # field.

Example

TEST_02

URDM or RDM frequency

Position

Select

TEST_02

URDM or RDM frequ ency/level

Test shown is an example, actual test name may be different.

Yes/No

Turn page to select a TEST

To Change the Order of Tests: (Continued)

Chapter 1, Product Description

Getting St ar ted

Product Description

Reference Page

Freq Parm Seqn Spec Proc

Chapter 1

TESTS

CURSOR CONTROL

Knob

PUSH TO SELECT

Channel Information Test Parameters Order of Tests Pass Fail Limits Save/D e l et e P r oc ed u r e

Rotate knob to position cursor.

Press knob to select a fie ld.

Chapter 1, Product Description

Getting Started

To Select URDM or RDM Frequency/Level test:

Note; cursor is located in the

Step # field.

TEST shown is an example only, actual test may be different.

1 TEST_01

Laptop Emulator

Position curs or at TEST_02 and

select it.

Position

Choices:

TEST_01 TEST_02 TEST_03

Select

TEST_04 TEST_05 TEST_06 TEST_07

Position cursor at TEST_01 an d

select it.

Position

TEST_01

Laptop Emulator

Select

Note; TEST_02 is now ent e r e d.

TEST_02

URDM or RDM frequency/level

TEST_02 URDM or RDM frequency/ level is now selecte d and ready to run.

To run TEST_02, turn page

Chapter 1, Product Description

Getting St ar ted

To Select URDM or RDM frequency/level test: (Continued)

Product Description

Reference Page

TEST 02

Choices:

CURSOR CONTROL

PUSH TO SELECT

TEST_01 TEST_02 TEST_03 TEST_04 TEST_05

Chapter 1

Knob

Rotate knob to position cursor.

Pres s knob to s elect a f ield.

Chapter 1, Product Description

Getting Started

To run TEST_02 URDM or RDM Frequency/Level:

Press TESTS to display the

TESTS (Main Menu) scre e n.

If you are in IBASIC, press SHIFT, CANCEL before pressing TESTS.

TESTS

The TEST is loading.

Wait 20 seconds.

Press <Shift> <CANCEL> to

stop the program.

Position cursor at Run Test

and select it.

Position

Run Test

Continue

Help

Select

TEST_02 begins running.

If the Test Set is connected to the base station, see TEST_02 - URDM or RDM frequency/level in chapter 5.

If the Test Set is not connected, the program will stop aut omat icall y when it is unable to continue.

SHIFT

CANCEL

To run TEST_02 URDM or RDM Frequency/Level: (Continued)

Reference Page

Run Test

Continue

Chapter 1, Product Description

USER

Use User keys k1-k5 as

an alternate method for making selections.

Getting St ar ted

Product Description

Chapter 1

Rotate knob to position cursor.

Help

CURSOR CONTROL

PUSH T O SELE CT

TESTS

Knob

Pres s knob to s elect a f ield.

Chapter 1, Product Description

Learning To U se the Test Software

Learning To Use the Test Software

To learn to use the Test Software:

1. Become famil iar with the steps in “Getting Started”

2. Become familiar with the following terms:

• Memory Card and SRAM Card - See "Memory Cards," in chapter 2, on page 53.

• TESTS (Main Menu) Screen - See See "What are Tests?," in chapter 4, on page 120 and see "TESTS (Main Menu) Screen," in chapter 4, on page 122.

• Procedures - See "Procedures," in chapter 3, on page 91.

• TEST_01 through TEST_11 - See chapte r 5, "TESTs - Ref er ence," on page 143.

• Order of Tests - See "Entering the Order of TESTs ," in chapter 4, on page 132 .

• Parameters - See chapter 6, "Parameters - Reference," on page 187.

• Pass/Fail Limits (Specifications) - See chapt er 7, "Pass/Fail Limi ts (Specificat ions)

- Reference," on pag e 197.

3. Bec ome familiar with the tests availa ble in the HP 11807A,E Option 100 System

Support Tests software pack age (commonly referred to as RF Tools).

4. If necessary, calibrate system components, and produce one or more Procedures with

your parameters. See "Dete rmini ng Ca libra tion P aramet ers," in chapte r 3, on p age 81 and See "Procedures," in chapter 3, on page 91.

5. Make the required connecti ons to the base station. See "Equipment Connect ions," in

chapter 3, on page 70.

6. Then, begin performing tests. See chapter 4, "Running Tests," on page 119.

7. If you need detailed information as you are running tests, see chapter 5, "TESTs -

Reference," on page 143, for descriptions of the TESTs.

In this Manual

Chapter 1, Product Description

In this Manual

This manual describes the setup and use of the Test Set when running the HP 11807B Option 040 Motorola AMPS/NAMPS Cell Site Test Software. Te st Set features not descri bed in thi s manual are documented in the HP 8921A User’s Guide (HP part number 08921-90022).

The chapters in this manual are arranged to help you to ref er to specific information for the task that you are performing.

Product Description

Chapter 1

Chapter 1, Product Description

In this Manual

Manual Contents

Chapter 1 - -Product Description describe s the Test Softwa re and helps you to

get started with the Tes t Soft w are pack a g e. Chapter 2 - Equipment describes the items that you either will require, or might

require, before you can begin testing. Some of the items might be installed permanently at the cell site . Skip this chapter if you are certain that necessary items are present and insta lle d correctly.

Chapter 3 - Setting Up desc ribes installing and connecti ng equipment, determining calibration factors, and entering parameters, pass/fail limits, and external device configur ation. The chapter also describes Procedures and data collection. If tests have been performe d previously at the cell site, you might be able to refer to figure 3 on page 71 to verify connections, and then skip the rest of this chapter.

Chapter 4 - Running Tests de scribes selecting a TEST to put into a procedure, and starting the program.

Chapter 5 - TESTs - Reference describes important aspects of each TEST available in the Test Software.

Chapter 6 - Paramet ers - Ref erence des cribes a ll para meters av ailab le in the Te st Software.

Chapter 7 - Pass/Fail Limits (Specifications) - Reference describes all pass/fail limits available in the Test Software.

Chapter 8 - Problem Solving describes some of the problems that might be encountered in using the Test Softwa re and Test Set.

Appendix A - Using the HP 3488A Switch/Control Unit describes vari ous connection factors in use of the Switch/Control Unit.

Appendix B - Test Set Measurement Settings lists the more important Test Set settings used in manual testing.

Appendix C - Cable Wiring Diagrams for Data Col lection to PC and Printer includes information required to construct PC and printer interface cables.

The Glossary describes terms that are used in cell site and test descriptions.

Chapter 1, Product Description

In this Manual

Conventions Used

Special presentations of text in this manual reflect the appearance of the item being referenced.

Examples of these special presentations are: TESTS

A key on the Test Set.

Product Description

Chapter 1

Procedure USER (Run Test)

0.00000

Characters dis played on the Test Set display.

A USER key in the k ey column next to the Te st Set dis-

play. Run Test appears on the display.

A field on the Test Set display in which entries may be

made.

Titles of documentation are printed in italics. The term Test Set refers to the HP 8921A. In the steps in this manual the following words are used to describe cursor and

entry actions:

• select means to rotate the cursor control knob to position the cursor in front of a field (inverse video area), and then press the knob.

• enter means to use the numeric keypad and the ENTER key or measurement unit s keys to make entrie s to fi elds. In some p rocedures, enter is used to descr ibe the action of entering characters into a field.

Chapter 1, Product Description

In this Manual

Equipment

This chapter describes items that you might require before you begin testing. Some items might become permanent test accessories, installed at the cell site.

Equipment

Chapter 2

Chapter 2, Equipment

Cell Site Equipment

Cell Site Equipme nt

A Motorola HDII, HDII/NAMPS, NAMPS-II, or LD Cellular Base Station is required. Equipment to be tested must be located at an active cell site. All firmware and downl oadabl e softwa re must be ins ta lled. The base st ation firmware revision must be 4.3.2.1 or later. Also, a powered-up base station cont roller and cell site controlle r are required.

Memory Cards

Chapter 2 , E quipment

Memory Cards

Memory cards are PC cards that are used for data storage. These cards are approximately the same length and width as credit cards, but somewhat thicker, and contain integrat ed cir cuit storage devices.

There are two overall type s of memory cards: Epson card and PCMCIA card. The principal difference between the cards is the interface connector. The Epson card is designed to meet Epson Corporation spe cifications. The PCMCIA card is designed to meet Personal Compute r Memory Card Inter national Associati on specifications. Both are called PC cards.

For each overall type, there are two sub-types: one-time programmable (OTP), and static random-access memory (SRAM). Once programmed, OTP cards are read-only devices. SRAM cards are random-access devi ces from which data may be read and to which data may be written multiple times.

In the Test System, memory cards are used to store the following:

Equipment

Chapter 2

• HP 11807B Option 040 Test Softwa re co de

• An HP-supplied Procedure, containing:

• A default testing order

• Default parameter values

• Default pass/fail limits

• A Library file

• Procedures that you produce, and that are optim ized for your application

• Data collect ion files

An Epson OTP card serves as the local source medium for the Test Software. When the OTP card is inserted into the slot on the Test Set front panel, the card receives power from the Test Set, and the Test Set, upon operator command, loads the Test Software int o the Test Set memory. Arrows printe d on the card and Test Set front panel indicate the card direction and orientati on for insertion.

SRAM cards are available for use in storing application oriented Proc edu res and other application inf ormation.

Chapter 2, Equipment

Memory Cards

Test Software Memory Cards

The HP 11807B Option 040 Motorola AMPS/NAMPS Cell Site Test Software is ordinarily supplie d on an Epson OTP card (HP part number 11807- 10012). However, the version that you receive might be supplied on an SRAM card. Determin e the di ffer en ce b etw ee n the two types by looking for a write-protect switch on the top edge of the car d. If there is a switch, the card is an SRAM card. If not, it is an OTP card.

CAUTION If your Test Software is resident on an SRAM card, it is possible to delete it accidentally

from the card. To prevent the loss of your program, check the write protect switch on the SRAM card an d ve rify tha t t he ca rd i s writ e p rote cted. Lea ve the swit ch se t t owar d th e ou tside of the card except while you are writing to it.

The Test Software OTP card may be removed after the program is loaded into the Test Set memory. The program will remain in memory after a power-down/ power-up cy cle.

Chapter 2 , E quipment

Memory Cards

SRAM Cards An SRAM card may be used to store test res ults and Pro cedure s that you produc e.

The SRAM cards listed in table 1 may be used.

Table 1 SRAM Card Part Numbers

Capacity Part Number

32 kilobytes HP 85700A 128 kilobytes HP 85702A 256 kilobytes HP 85704A 512 kilobytes HP 85705A

The SRAM card must be initialized before its fir st use. See "Initiali zing an SRAM Card," in chapter 3, on page 115.

NOTE: SRAM cards use a battery to retain data while the card is not inserted into a powered-up

Test Set. The lif e o f the b a t te r y dep ends on th e ca r d cap ac i ty an d th e av erage te mp erature of its environment . S ee the next paragraph.

Each SRAM card uses a li thium batte ry (p art number CR 20 16 or HP par t number 1420-0383). Programs and data will be retaine d for more than one y ear if the card is stored at 25 degrees Celsius. The card is powered by the Test Set while it is inserted. When it be comes ne cessary to r eplace th e batt ery, do so while t he card is inserted into a powered-up Test Set. To retain data and procedures, the battery should be replaced annually. If you store SRAM cards in a warm environment, replace the battery more often.

A procedure to replace the battery is described in the HP 8921A User’s Guide.

The write protec t switch on a S RAM card will write-protect the card when it is se t toward the outside of the card.

Batterij niet

weggooien, maar

inleveren als KCA.

Equipment

Chapter 2

Chapter 2, Equipment

Memory Cards

Memory Card Storage Space

Regarding storage space , the following characteristics apply:

• A record is 256 bytes.

• A procedure uses 12 to 16 records.

• A library typically uses 20 to 35 records.

• Only one library is permitted on a card.

• Overhead of approximately 11 kilobytes is required on each card.

Use the following formula to estimate the required storage space:

Storag e Space(in kiloby te s) = (Numbe r of Proced ur es × 4.1) + 17

For example, if you ar e testing ten c ell si tes a nd th e procedur e is di ffer ent for each site, you will use ten procedures, and 58 kilobytes of memory. Thus, the 128kilobyte card is sufficient.

The storage s pace that you will require for data collection depends on the number of test res ults to be saved. You will require approximately 4 kilobytes per page of test results that you save. A page of test results is approximately 57 lines of CRT or printer output. See "Data Collection" on page 113 for a discussion of memory card storage space and file types.

In applications in which large quan tities of data will be collected, the sto rage capacity of smaller SRAM cards is reached quickly. In such instances, data collection using a PC or printer might be advis able.

Chapter 2 , E quipment

HP 8921A Cell Site Test Set

The HP 11807B Opt 040 Test Software r uns on the HP 8921A Cell Site Test Set. In this manual, the term Test Set refers to the HP 8921A. The HP 8921A Cell Site Test Set is an optimized collection of instrument

hardware and firmware, designed to test cellular base stations extensively. Most of the required hardware and all of the fir mware to tes t cellular base stations has been included in the standard instrument. Several options may be added, depending on your applicati on.

Test Set Firmware The HP 8921A firmware revision number must be A.06.09 or later. At the time

this manual was revised, firmware revision A.16.00 was being shipped. Identify the revision of the firmware by pressing the Test Set SHIFT, CONFIG

keys. The Test Software will display the revision number in the CONFIGURE screen.

An internal switchable 600-ohm load is supported in firmware revisions A.06.11 and later. If this load is not installed in your instrument, you must place an external load in line with the connection from the RCV LINE JK to the Test Set AUDIO IN connector. See "Audio Connections," in chapter 3, on page 75.

Testing a base station with NAMPS capability requires r evision A.06 or later ( but not including revision A.06.12).

After the Test Software has been loaded into Test Set memory, a pre-run operation takes place after much less time if the Test Set firmware revision is A.08.02 or later.

Run Test is pressed. The pre-run will be performed in

Test S et Option Depending on your appl ication, the Radio Interface Card, Option 020, to the Test

Set might be required. This option is used to control RF and audio switches that route signals from the

base station t o HP 8921A con nectors. If th e appl icat ion will use another switchi ng arrangement, this option is not required. See "RF and Audio Switches" on page

61.

Equipment

Chapter 2

Chapter 2, Equipment

Other Software Tools

As an adjunct to the tests included in the Test Soft ware, Hewlett-Packard offer s the HP 11807A,E Option 100 System Support Tests software package. This software pack a g e is contai n ed o n an O TP card an d includes a variety of tests to enhance the testing efficiency of the Test System.

The RF Tools in this package include the following tests:

•Swept Gain

• Swept Insertion Loss

• Swept Ret u rn Loss

• AMPS Channel Retur n Loss.

• Cable Fault.

• ERP Calculator

• Replot Data Files

• Transfer Stored Data

• SA Self Calibration ON/OFF

• Catalo g M emory Card

• Create/Ed it Data Collection Labels

Of particular inter es t to users of the HP 1807B Option 040 Test Software in maintaining cellula r telephone base stations are the Swept Inser tion Loss, Swept Return Loss, AMPS Channel Return Loss, and Cable Fault tests.

In addition, the Option 100 package includes a Field Strength test that performs field strength measurements, an Intermodulation Products test that calculates intermodulation products, and a Scanner test that performs discrete and swept frequency scanning on the system under test.

Peripheral Items

Chapter 2 , E quipment

Peripheral Items

This section describ es ite ms required t o inter connect the major component s of the Test System. An HP-supplied solution is described in this section. Individual switch and interconnect ite ms from other suppliers are also descri bed. See figure 3 on page 71, figure 4 on page 72, and chapter 3, "Setting Up," on page 69.

Equipment

Chapter 2

Chapter 2, Equipment

Peripheral Items

HP Supplied Peripheral Item s

Table 2 Motorola Cables/Adapters

A Base Station Accessory Kit is available from Hewlett-Packard (HP 83202A Opt 040). The kit contains the following ite ms:

Description Purpose Q Part Number

Directional couplers See figure 4 on page 72 in HP

50-Ohm SMA(m) termination

N(f) to N(f) Adapter For VSWR and cable

N(m) to N(m) Adapter For VSWR and cable

N(m) to BNC(f) Adapter To adapt HP 8921A

SMA(f) to N(m) Adapter Connects to HP 8921A RF

Phone jack to BNC(f) Adapter

4 0955-0711

11807B #040 User’s Guide Terminates coupler port 4 0960-0053

1 1250-0777

calibration

1 1250-0778

calibration

1 1250-0780 RF IN/OUT for RDM/URD Measurements

1 1250-1250 IN/OUT

For measuring RDM and URDM power

1 1250-1853

BNC(m) to SMA(f) Adapter

BNC(m) to Banana(f ) Adapter

Banana( m) to BNC(f) Adapter

SMA(m) to SMA(m) 20 ft. cable

BNC(m) to BN C( m) 15 ft. cable

Bantam 309 to BNC(m) 15 ft. cable

DB37 to DB37 10 ft. ribbon cable

Connects to HP 8921A DUPLEX OUT

Connects to HP 8921A AUDIO IN HI/LO

Connect across HP 8921 A AUDIO IN HI/LO

From couplers to switc h and to HP 8921A RFIN/OUT

HP 8921A AUDIO OUT to switch and HP 8921A RF IN/OUT to phone jack

From transceiver to HP 8921A and to switch

From HP 8921A to switch 1 08921 -61013

2 1250-2015

2 1250-2164

1 1251-2277

5 08921 -61006

1 08921 -61007

2 08921 -61008

Table 2 Motorola Cables/Adapters

Description Purpose Q Part Number

Chapter 2 , E quipment

Peripheral Items

RJ11(m) to RJ11(m) 6 wire25 ft. twisted cable

RJ11(f) to DB25(m) Adapter

RJ11(m) to RJ11 (f) dual port, 6 wire sp litter

DB9(f) to RJ11(m) 4-wire cable

DB25(m) to RJ11(m) 4-wire cable

Dual miniphone cab le From switch box to base

Switch Matrix Automates switching between

Connects to dual port splitte r and to RJ(11)to DB(25) Adapter

Connects to TTYMP #8 1 08921 -61016

Connects to HP 8921A rear panel serial port

For data collection 1 08921 -61038

For data collection 1 08921 -61039

station (RCV & TEST jacks)

receive antennas and audio paths

1 08921 -61015

1 08921 -61031

2 08921-61040

1 HP 83202A

K02

Equipment

Chapter 2

RF and Audio Switching Arrangements

RF and Audio Switches

The Test Software supports two method s for switc hing RF and audio paths. The first uses the optional Te st Set Radio Interface Card and external switches. The second uses an HP 3488A Switch/Control Unit with optional internal switches. The main part of this manual describes the method tha t uses the Radio Interface Card. Appendix A describes the method that uses the HP 3488A Switch/Control Unit.

It is highly recommended that you select one of these two automatic switching methods. Manually switching signal paths is cumbersome and can result in time consuming troublesho oting.

A single-pole six-th row (SP6T) RF switch may be used to route one of the receiver-c o upled ports to the Test Set DU PLEX OUT connector. It is preferable that the swit ch have TTL control inputs. The HP 87 106A Opt 050 SP6T switch is

Chapter 2, Equipment

Peripheral Items

appropriate. The RLC Electronics Model S-1519A also has the necessary characteristic s. This switch has SMA connectors. (A TTL buffer should be used with this switch. See "Switch Control Input Buffer " on page 62.)

The Test Set Ra dio Inte rfac e Card has TTL and CMOS compatible outputs that control switche s external to the Test Set. The switche s are acti vated aut omatica lly by the Test Software.

CAUTION: Damage to the Test Set can result if the RF or audio switches generate transients that are

conducted into the Test Set via the Radio Interface connector. It might be necessary to install d iodes on the Ra dio I nte rface contr ol li nes to supp ress trans ients ca used by th e s witches. Refer to the switch manual for the proper inte rface to TTL or CM OS control lines.

An SPDT switch must be installed so that the Test Software can select eithe r the transmitter TEST JK or the EQUIP RCV to be applied to the Tes t Set Audio In. A miniature SPDT printed-circuit- board-mounted relay provides the necessary characteristics.

You might wish to route the Test Set AUDIO OUT through the Switch Unit, and then to the EQUIP XMT LINE JK. Cables from the Test Set to the Switch Unit can then be the same length.

Swit c h Control Input Buffer

Depending on the loa ding of the switch control inputs, a buffer might be required between the Radio Interfac e conne ctor and the Switch Unit.

If a buffer is required, a 7407 non-inverting TTL buffer may be used. The buffer outputs must be pulled up to the 5-volt supply. This should be done using 1000-ohm resistors.

See "Radio Interface Connections," in chapter 3, on page 79 for connector pinouts.

RF Couplers A directional couple r with low through-path loss is ordinarily installed in each of

the RX and TX transmissi on lines leading to antennas. The RLC Model M3020A has the necessary characteristics. Refer to the Motorola cell site manual for another recommended model.

50-Ohm Terminations

It might be ne cessary to place a termination on the RX RF coupler port leading to the antenna to prevent received signals from affecting base station receiver tests.

Chapter 2 , E quipment

Peripheral Items

While testing the SIG unit, a high-power load must be placed on the RF coupler output leading to the ant enna. It mu st be cap able of h andling at least 30 watts . The load is required to prevent the SIG transmitter signal from being radiated to mobile stations. A 150-watt loa d is available from Lucas Aerospace (part number M1428).

Cables, Adapters, and Connectors

You might also require some of the following items:

RS-232 Base Station Control Cable

A DB-25 to RJ-11 cable may be assemble d. Alte rnatively, the adapte rs described in the following paragraphs may be used with RJ-11 cables.

6-pin Modular-to-DB-25 Adapter

The following parts may be used:

• Hewlett-Packard part number 08921-61016

• Radio Shack part number 276-1405

RJ-11 Cable

You will require an RJ-11 cable (6-wire, HP part number 08921-61015) to connect the adapter to the Test Set. If you use a differ ent RJ-11 cable, make certain that it has six conductors.

Single-to-Dual RJ-11 Adapter

The other parts described ab ove will provide a single RJ-11 to DB-25 adapter. If you add a single-RJ-11-to- dual-RJ-11 adapter, you will be able to connect simultaneously the Serial B port to the base station and the Serial port to a serial printer, PC, or other device .

Equipment

Chapter 2

An adapter is avail able from Black Bo x (part number FMO-1 1 or HP part numbe r 08921-61031). In addition to the dual-to-single adapter , you will require two Modular-to-DB-25 adapte rs and two RJ-11 cables.

RF IN/OUT Cables

Connection from the RF IN/OUT connector to the coupled port of the TX coupler may be made with a cable with SMA connectors on both ends, and a Type N(m)to-SMA(f) adapter (Pomona part number 4297, HP part number 1250-1250).

The connection to the 3-MHz RDM/URDM output may be made using adapters and a coaxial cable with SMA connectors. Phono(m )-to- BNC(f) (Pomona part number 5319, HP pa rt number 125 0-1 853) and B NC(m)-to-S MA(f) (Pomona pa rt

Chapter 2, Equipment

Peripheral Items

number 4289, HP part number 1250-2015) adapter s on the 3-MHz end, and an SMA(f)-to-N(m) (Pomona part number 4297, HP part number 1250- 1250) adapter on the RF IN/OUT end may be used.

Cable lengths should be as short as possible so that losses are minimized. Low loss cable should be used. To improve accuracy, you might wish to have a set of calibrated stand ard test cables.

DUPLEX OUT Cable

Connection from t he DUPLEX OUT to the common por t of the RF swi tch may be made with a cable with SMA connectors on both ends. A BNC(m)-to-SMA(f) adapter (Pomona part number 4289, HP part number 1250-2015) is required on the Test Set.

Cable lengths should be as short as possible so that losses are minimized. Low loss cable should be used. To improve accuracy, you might wish to have a set of calibrated stand ard test cables.

RX Coupler-to-Switch Cables

Connection from the RX RF coupler to the RF switch ports may be made with cables with SMA connectors on both ends.

Cable lengths should be as short as possible so that losses are minimized. Low loss cable should be used. To improve accuracy, you might wish to have a set of calibrated stand ard test cables.

Audio Cables

Bantam 309-to-BNC cables may be used f or audio inte rconnections . Three c ables are required, unless the RF switch is used. In that case, two Bantam 309 to Bantam 309 cables and two Bantam 309 to BNC cables are required.

Two BNC(m)-to-banana(f) adapters (Pomona part number 3430-0 black, 3430-2 red, HP part number 1250-126 3 gray), may be u sed to c onvert th e AUDIO IN HI and LO connectors to banana type connectors. A banana(m)- to-BNC(f) adapter (Pomona part number 1269, HP pa rt number 1251-2277) is also required.

RF Switch Control Cable

A cable is required between the Radio Interface Card and the RF and audio switches. One end must have a 37-pin D-Submin connector (AMP Inc. part number 747306-1). The ot her end will conne ct to the swi tches. Refer to the s witch documentation for requi red co nnectors. A 50-foot ribbon cable with a DB-37 connector is available from Hewlett-Packard Company (HP part number 1252-

1682).

Chapter 2 , E quipment

Peripheral Items

HP-IB Cables

If an HP-IB printer or disk drive is part of the system, those units must be connected to the Test Set using HP-IB cables. See the HP Direct Catalog

HP Supplied Connector Ki t

VSWR and Cable Fault Ancillary Equipment

If you are assembling your own switching and interconnect arrangement, you might wish to ha ve the Connector Kit (HP part number 08920-61061). It contains the RS-232 to RJ-11 adapter and Radio Interface, Mic/Acc, and DC power connectors.

If you expect to perform the VSWR or cable f ault tests tha t are include d in the RF Tools section of the HP 11807A,E Option 100 System Support Tests software package, you will require additional items.

VSWR measurements require a return loss bridge and a 6-dB pad. A return loss bridge with the necessa r y characteristics is available from Hewlett-

Packard Company (P/N HP 86205A) or Eagle (P/N RLB150N3B). See "Vendor Information" on page 67.

A 6-dB pad with BNC connectors is available from Hewlett-Packard Company (HP P/N 0955-0698). See "Vendor Information" on page 67.

For cable fault tests, a resistive power splitter is required. It is important to note that some power splitt ers is olate the output s from each othe r, and may not be used for VSWR tests using this Test Software. The HP 11850C Power Splitter (P/N HP 0955-0733) is a resistive type that does not isolate the outputs; it may be used with the Test Software. See "Vendor Information" on page 67.

Equipment

Chapter 2

High Accuracy Frequency Reference

To verify the performance of the URDM and the frequency accur acy of NAMPS signals, a highly accurate 10-MHz reference source is required. The Electronic Research Co. Model 130 has the required chara ct eristics.

Chapter 2, Equipment

Documentation

After you have learned to use the Test Software, you will be able to run the tests without documentati on. Howe ver, if you wish to change Procedures or if you expect to perform troubleshooting, you will require this manual. In addition, it might be appropriate to have available the HP 8921A User’s Guide (HP part number 08921-90022) if you are using the Test Set manually. Motorola base station documentati on might be re quire d if you expect to perform troubleshooting or module replacement . I t might also be helpful to have your own docu mentation describing the particular procedures that you follow when performing testing.

Vendor Inform ation

AMP Inc. PO Box 3608 Harrisburg, PA 17105 (800) 526-5142

Black Box Corporation 1000 Park Drive Lawrence, PA 15055 (412) 746-5500 (800) 321-0746 FAX

Eagle P. O. Box 4010 Sedona, AZ 86340 (602) 204-2597 FAX (602) 204-2568

Electronic Researc h Co. 7618 Wedd St. Overland Park, KS 66204 (913) 631-6700

Chapter 2 , E quipment

Vendor Information

Equipment

Chapter 2

Hewlett-Packard Company. See the list of sales offices in chapter 1 of the HP 8921A User’s Guide.

ITT Pomona Electronics P.O. Box 2767 Pomona, CA 91769 (714) 469-2900 (714) 629-3317 FAX

Lucas Aerospace Communicati ons and Elec tronics Inc. P.O. Box 6001 Gaithersburg, MD 20884-6001 (800) 638-2048

RLC Electronics, Inc. 83 Radio Circle Mt. Kisco, NY 10549 (914) 241-1334

Chapter 2, Equipment

Vendor Information

Setting Up

This chapter describes:

• Making connections to the equipment in the Test System.

• Measuring or determinin g cal ibration parameters.

• Making, loading, deleting, copying, and securing Procedures.

• Entering pass/f ail limits, parameters, and external device configuration.

• Setting up data collection.

Setting Up

Chapter 3

Chapter 3, Setting Up

Equipment Connections

CAUTION: The Test Set and othe r equipment in this Test Sys tem can be damaged by transient RF

power, continuous RF power, high voltage, electrostatic discharge from cables and other sources, a nd trans ients cau sed by l ightni ng. Connec tions t o equipme nt, swi tch setti ngs, an d power-on conditions must be chosen to reduce the risk of damage to the equipm ent.

Many arrangements of test equipment and base station equipment are possible . In this manual, some of these possibilities are presented. Radio Interface control of the RF and audio switches is described in this section. Refer to this section and "Appendix: Using the HP 3488A Switch/Con trol Unit" on page 219 if you are using an HP 3488A Switch/Control Unit.

Figure 3 on page 71, is an overall Test System block diagram. After you have set up your Test System, you will be calibr ating some system

components. Tests s hould be r un wit h the equip ment c onnecte d in the same wa y i t was when it was calibrated.

Chapter 3, Setting Up

Equipment Connections

RF Coupler

(1 of possibly

several.)

RX ANTENNA(S)

Base

Station

Hardware

RF Switch (1)

TX TX/RX ANTENNA(S)

SCN(S)

RCV

Harmonic Filter

SIG(S) To

RCV

Optional Interface

RF Coupler

IN/OUT

Audio S wi tc h (2)

Harmonic Filter

VOC(S)

RCV

RF Coupler

TESTJKXMT

Radio

Interface

DUPLEX OUT

HP-IB

DISC

PRINTER

PC/TERMINAL

(1)

RF splitter can be used wit h li m ited test capability. See chapter 3, Configura tion.

(2)

Audio switch not used/controlled if RF splitte r is us e d in RF p at h .

HP-IB/RS-232

RS-232

RS-232 Serial HPIB

10 MHz

Reference

Optional

10 MHz

Reference

Figure 3 Overall Test Sy stem Block Diagram

RS-232

Serial B

TTYMP #8

CSC Network

Address

Audio

HP 8921A

CSC

Audio

Out

IN/OUT

3 MHz

RDM/URDM

Setting Up

Chapter 3

Chapter 3, Setting Up

Equipment Connections

Cell Site to Test Equipment Interconnection

HP-IB (IEEE 488.2)

to Printer, HP 3488A,

or Data Collection PC

HP 8921A Cell Site Test Set

Part 1 of 2

08921-61031

RJ11(m) to RJ11(f)

Back

HP-IB

SERIAL PORT

Splitter

Cable

08921-61038 RJ11 to DB9(f), or

08921-61039 RJ11 to DB25(m)

SERIAL (Port 9)

SERIAL B (Port 10)

To Printer, Terminal, or Data Collection PC RS232

Cable 08921-61015

(25ft) RJ11(m) to RJ11(m)

To RS232 TTYMP #8

CSC Network Address

08921-61013

Ribbon Cable

(10ft) DB37 to DB37

DUPLEX OUTRF IN/OUT

AUDIO OUT

Adapter

1250-1250

Adapter

1250-0780

Cable (15ft) 08921-61007

Adapter 1250-1853

1250-2015

Cable 08921-61006 (20ft)

To PHONO jacks on

BSC back plane.

* An external 600-ohm load is required if it is not internally installed in your Test Set. See Audio Connections in Chapter 2.

Adap ters 125 0-2164

(AUDIO IN HI & LO)

Adapter 1251-2277

Ground tab on AUDIO IN LO side.

HP 83202A Opt. K02 Switch Matrix

Optional - Switch needed for Transceiver Tests

83202A OPTION K02 S WITCH MATRIX

POWER

OFF ON

Cable 08921-61008 (15ft) BNC(m) to Mic.(m).

10 MHz REF INPUT

10 MHz Ref .

Cable 08921-61008 (15ft) BNC(m) to Mic.(m).

Cable 08921-61006 (20ft) SMA(m) to SMA(m)

RECEIVER ANTENNA SWITCH

ANT1 ANT2 ANT 3 A N T4 AN T 5 ANT6

DUPLEX OUT

(CS)

(TS)

(CS) (CS) (CS) (CS) (CS)

TX AUDIO

AUDIO SWITCH

AUDIO IN RCV JACK TES T JACK

(TS) (CS) (CS)

10 MHz Ref. needed for URDM tests of NAMPS base station.

600-Ohm

Load*

B C

D E

Figure 4 Cell Site to Test Equipment Interconnections

Equipment Connections

Cell Site to Test Equipment Interconnection

Part 2 of 2

Chapter 3, Setting Up

Cable 08921-61015

(25ft) RJ11(m) to RJ11(m)

Cable

08921-61006

(20ft)

(1 of possibly several in

TX Harmonic Filter

Base Station

Bay

Adapter

08921-61016

RJ11(f) to DB25(m)

To RS232 TTYMP #8 CSC Network Address

To TX Antenna(s)

RF Coupler

0955-0711

bay. See NOTE 1.)

See NOTE 1

(1 of possibly several

in rack. See NOTE 1.)

Site Filter

Rack

Filters

To RX Antenna(s)

RF Coupler

0955-0711

See NOTE 2

Cable 08921-61040

Cable 08921-61008 (15ft) BNC(m) to Mic.(m)

VOC

SIG, VOC, SCN

Cable 08921-61040

Mic.(m) to Mic.(m)

Cable 08921-61006 (20ft) SMA(m) to SMA(m)

VOC

VOC, SIG, or SCN

EQUIP XMT LINE JK

EQUIP RCV LINE JK

TEST JK

NOTE 1: It is recommended that each ant enna line in the bay and rack have its own RF Coupler .

NOTE 2: Depending on the site filter-rack used, RF couplers can be inserted before or after filters.

Setting Up

Chapter 3

Chapter 3, Setting Up

Equipment Connections

Receiver RF Connections

An RF coupler must be installed between each of the recei ve antennas and base station receiver inputs. See figure 4 on page 72 for a description of these connections. RF cables connect each of the coupled ports to an RF N-way switch or splitter. The switch will have two selected ports if the site is an omni site, and six if it is a sectored site. The common port of the switch or splitter is connected to the Test Set DUPLEX OUT connector. See "Radio Interface Connections" on page 79 for details of the connection of the Radio In terface to the RF N-Way switch.

CAUTION: The applica tion of RF p ower greater tha n 200 milliwatt s (mW) (or +23 dBm) can damage

the Test Set DUPLEX OUT port . Make certai n that signal s applied to t his port are less than 200 mW. If an RF power higher than 200 mW is applied, an overpower relay will trip. Disconnect t he RF si gnal, or tur n it off, press MEAS RESET or tur n t he Tes t Set powe r of f and then on to reset it, and then reconnect the RF signal, or turn it on again.

Signals that affect the equipment being measured can be picked up by the RX antennas. To prevent this, terminate the RF coupler when performing tests of the SIG unit and scan receivers.

In measurements on voice channel receivers, antennas ordinar ily may be left connected to the RF couplers. Interference may be detected by turning up the speaker volume of the Test Set. The interfering signal might be the result of a problem in the frequency plan. If it is impo ssible to proceed with measurements, terminate the RF coupler port leading to the antenna using a 50-ohm load.

Transmitter RF Connections

An RF coupler must be installed between each cell site transmit antenna and its associated harmonic filter if you wish to perform any test in the In-Service Optimization sta te. See fi gure 4 on pag e 72 for a desc ription o f these conne ctions . A small amount of powe r is ava ilable at t he coup led port a nd is ap plied to the Te st Set RF IN/OUT connector.

While testing the SIG unit, a high-power load must be placed on the RF coupler output leading to the ant enna. It mu st be cap able of h andling at least 30 watts . The load is necess ary to prevent the SIG unit transmitte r signal from being r ad iated to mobile stations.

Chapter 3, Setting Up

Equipment Connections

Audio Connections An SPDT switch must be installed so that the Test Software can automatically

apply either the TEST JK of the tra nsmi tter or the EQUIP RCV of the receiver to the Test Set AUDIO IN. See figure 4 on page 72 for a description of these connections. A 600-ohm load must be connected across the EQUIP RCV, if your Test Set does not have a built-in switcha ble 600-ohm floating load. This inte rn al load is included in all Test Sets shipped after October 1992. Determine if it is built-in by looking for its co ntrol field on the AF ANALYZER screen. The field is labelled the screen includes these three choices, the switchable load is inst alled.

The HP 11807B Option 040 Test Software selec ts a floati ng AUDIO IN LO if the Test Set does not have an internal 600-ohm load.

See "Radio Interface Connections" on page 79 for details of the connection of the Radio Interface to the audio path switch.

The transmitter EQUIP LINE JACK is connected to the Test Set AUDIO OUT connector with a coaxial cabl e. You might wish to route this connection through the switch box.

Audio In Lo and has three choice s: Gnd, Float, and 600 to HI. If

Connection fo r RS-232 Base Stat ion Co ntrol

CAUTION: RJ-11 cable and adapters might be wired in several ways . Verify the connect ions bet ween

Serial Port Connections for Data Collection

The HP 11807B Option 040 Test Software supports RS-232 control of the base station via the TTYMP #8 CSC Network Address connection. Other connections are not supported. The Test Set has a rear-pa nel RJ-11 connector for serial communication. See figure 5 on page 76. It has two serial ports on it, Serial A port and Serial B port. Serial B port is used for base station control and messaging.

the Test Set RJ-11 conne ctor and the DB-25 base station connector.

The connections between the Test Set RJ-11 connector and the DB-25 TTYMP #8 CSC Network Address connector are shown in figure 6 on page 77

The Test Software is capable of uploading test results to an external computer. One way to accompl ish this is by runn ing a terminal pr ogr am on a laptop or other computer and using terminal logging to save the information sent to the Test Set Serial port. See figure 5, "Connector on Test Set Rear Panel," on page 76 and figure 6, "Adapters for Base Station Control," on page 77.

Setting Up

Chapter 3

Chapter 3, Setting Up

Equipment Connections

Printer Connection A seri al printer may be connected to the Test Set Serial port. An HP-IB printer

may be connected to the Test Set rear-panel HP-IB connector. See "Serial Port Configuration" on page 109 for informati on on how to set the

Test Set Serial port settings to match the printer settings. (See also"Appendix: Cable Wiring Diagrams for Data Collection to PC and Printer" on page 233).

Serial Port Location

A serial pri nter may be atta ched to t he Ser ial por t. Use the following figur e for p in information and the next figure for adapter information.

Connector on Test Set Rear Panel

Transmit B

6 5 4 3 2 1

Transmit A Ground No Connect Receive A Receive B

Figure 5 Connector on Test Set Rear Panel

HP 8921A Test Set

Serial Port

6 5 4 3 2 1

Chapter 3, Setting Up

Equipment Connections

Adaptors

For Base Station Control

RJ-11 (F) to DB-25 (M)

see Diagram A

RJ-11 Splitter

For PC or Printe r

RJ-11 (F) to DB-25 (M)

see Diagram B

Diagram A

RJ-11 (F)

1 2 3 4 5 6

Transmit BReceive B Gnd.

DB-25 (M)

Pin 2 Pin 3

Pin 1

Pin 14 Pin 25

Pin 20

Pin 7

Pin 8

Pin 13

Diagram B

RJ-11 (F)

1 2 3 4 5 6

Transmit AReceive A

Gnd.

DB-25 (M)

Pin 2

Pin 1

Pin 14 Pin 25

Pin 3

Pin 20

Pin 7

Pin 8

Pin 13

DB-9 (F) NOTE:

pins 1, 4, & 6 jumpered together, and pins 7 & 8 jumpered together

For a PC

RJ-11 (F) to DB-9 (F)

see Diagram C

Diagram C

RJ-11 (F)

1 2 3 4 5 6

Gnd.

DB-9 (F)

Pin 3

Pin 5 Pin 9

Transmit AReceive A

Pin 2

Pin 1

Pin 6

Setting Up

Chapter 3

Figure 6 Adapters for Base Station Control

Chapter 3, Setting Up

Equipment Connections

Parallel Port Location

Pin 1

nStrobe

Data 1 Data 2 Data 3 Data 4 Data 5 Data 6 Data 7 Data 8

nAck Busy

PError

Select

A parallel prin ter may be a ttached to t he paralle l por t. Use the f ollowing f ig ure for pin information.

Pin 14

nAutoFD NFault nInit nSelectn

Signal Ground

Pin 13

Pin 25

Figure 7 Test Set Parallel Port Connections

Disk Drive Connections

A disk drive may be attached to the rear-panel HP-IB connector. See "Data Collection" on page 113.

Chapter 3, Setting Up

Equipment Connections

Radio Interface Connections

CAUTION: Damage to the Test Set can result if the RF or Audio switches generate transients that are

The following p ins on the Radio I nte rface connector are used to control switches:

1 - GND 19 - Parallel Data Out - D0 - Pos. 1 on the RF switch 20 - Parallel Data Out - D1 - Pos. 2 on the RF switch 21 - Parallel Data Out - D2 - Pos. 3 on the RF switch 22 - Parallel Data Out - D3 - Pos. 4 on the RF switch 23 - Parallel Data Out - D4 - Pos. 5 on the RF switch 24 - Parallel Data Out - D5 - Pos. 6 on the RF switch 25 - Parallel Data Out - D6 - DPDT audio relay 26 - Parallel Data Out - D7 - DPDT audio relay (opposite polarity as pin 25)

conducted int o the T es t Set via the Radio Interface connector. It might be necessary to install di odes on the Radio Interface control lines to suppre ss transients caused by the switches. Refer to the switch manual for the proper interface to TTL or CMOS control lines.

There are Radio Interface connector pins that are used for other purposes not

listed above. If you plan to con nect to these line s, see “Conne ctor , Key, and Knob Descriptions” in the Test Set User’s Guide .

A buffer might be required between the switch and the Radio Interface connector. See "Switch Control Input Buffer," in chapter 2, on page 62.

The Radio Interface Card provides either a 5.1-volt or user selectable high state logic output voltage.

Setting Up

Chapter 3

Chapter 3, Setting Up

Equipment Connections

The Parallel Data Out lines are open collector outputs with 3.16-kilohm internal pull-up resistor s. The resistors are connected between the col lectors of the drive transistors and a logic voltage that may supplied either intern ally or externally. The internally suppli ed voltage is approximately 0.6 volt le ss than the externally supplied voltage. The external voltage is applied to pin 9 of the Radio Interface connector, and may be between 5.1 volts and 20 volts. The maximum loading on the voltage is 145 ohms to ground. If no voltage is applie d, an internal 5.1-volt source is used as the logic voltage. The characteristics of the paral lel lines are:

High state out put: 3. 16-kilohm pul l-up to the logi c voltage . See t he previou s paragraph. Output si n k cu rrent (low state, output voltage ≤ 1.5 volts): 6 mA mini mum, 16 mA

typical Series chokes: 4.6 µ H for RFI cont rol on all lines. Clamp diodes for ESD protection: The applied voltage must not exceed the logic

voltage plus 0.6 v olt, or be less than − 0.6 volt.

DC Power to the RF and Audio Switches

DC power must be supplied t o the RF and audio switches from a separate source. The Radio Interface Card cannot supply such power. Refer to the switch documentation for power requirements.

Determining Calibration Paramete rs

Methods of measurement in this section determine RF losses and inaccuracies in your Test System. You must record the result ing calibration factors and enter those as parameters in the fields of the TESTS (Te st Parameters) screen. The Test Software w ill then use thes e cal ibr at ion factors when the te s ts are run .

If you are using a switch to automatically change RF paths, you must make entries into the TESTS (Externa l Devices) screen before you begin these methods. Entries are required for the Test Software to control the switch in

“TEST_08 - Manual Switch and Calibration Aid”. See "Determining Calibration Parameters" on page 81.

Chapter 3, Setting Up

Determining Calibration Parameters

Transmitter Path Loss Calibration

This procedure is used to obtain values for the parameter(s) TX path loss to harmonic filter 1 (to) 8.

See "Conventions Used," in chapter 1, on page 49 for descriptions of the terms

select and enter. The terms are used in the ste ps in these procedures that make entries to the Test Software .

When making a tra nsmitter power measurement with the Te st S et power meter or spectrum analyzer, the following losses or inaccuraci es will be present in the measured results:

a) Cable losses. b) Directional couple r los s es . c) Spectrum analyzer or pow er meter absolute accuracy. d) Spectr u m analyz er or power meter flatness accuracy.

The following procedure use s an externa l, highly accurate, power meter to determine a calibrat ion fac tor that will correct for the errors listed in a through c above. A single factor for each TX path loss is obtaine d. No correction is provided for changes in loss versus frequency. If the RF coupler coupling is low enough to allow the use of the power meter in the Test Set, this calibration factor will cover Test Set power meter errors. Otherwise, the spectrum analyzer error will be covered.

Setting Up

Chapter 3

Chapter 3, Setting Up

Determining Calibration Parameters

To determine this calibration factor:

1. See figure 8 . Zero the power meter a nd set the c alibrati on fa ctor i f nece ssary. Place a.

high-power atte nuator at the output of the TX harmonic fi lter. Connect a power meter sensor to the output of t he attenuator. The attenuat or might not be require d if the power meter and sens or range is correct fo r the power being measure d. Make cert ain that t here are no extra cables in the setup. The atten uator sh ould have a 50-ohm input and output impedance, with a VSWR less than 1.1:1. Record the value of the attenuation as ATTVALUE in dB.

Power Met e r

To Antenna

Attenuator

Sensor

From Base Station TX

Harmonic Filter (N) Output

Figure 8 Transmitter Path Loss - POWERREF Measurement

2. Key a single transmitter, with no modulation, and measure the power on the power

meter. Record this reading as POWERREF in dBm.

3. De-key the transmitter.

RF IN/OUT

Chapter 3, Setting Up

Determining Calibration Parameters

4. See figure 9 . Con nect t he T X harmon ic fil ter outp ut to the RF co upler input. Con nect

the Test Set RF IN/OUT, using a standard test cable, to the coupled port of the RF coupler in the TX antenna line.

HP 8921A

To Antenna

Coupler

Standard TX Test Cable

Harmonic Filter (N) Output

Figure 9 Transmitter Path Loss - POWER8921 Measurement

5. Re-key the sam e transmitt er that was keyed in step 2.

6. If the param eter TX voice/si gnal pwr us e is set to 0, transmitter power will be measured

on the spectrum analyzer. If the parameter is set to 1, measure the transmitter power on the Test Set power meter, record it as POWER8921, and proceed to step 7.

From Base Station

Setting Up

Chapter 3

Chapter 3, Setting Up

Determining Calibration Parameters

NOTE: The steps a through r list ed below, may be performed autom atically by runnin g “TEST_08

- Manual Switch and Calib ration Aid” and selecting Read the spec. analyzer TX path calibration.

a. Press the PRESET key. b. From the To Screen menu, select SPEC ANL. The SPECRUM ANALYZER

screen w il l app ear.

c. From the Controls menu, select Main. The Main menu will appear at the

bottom of the scr een.

d. Select Center Freq. Enter a value equal to the tran smitter frequency. e. Select Span. Enter 50 kHz. f. From the Controls menu, select Marker. The Marker menu will appear at the

bottom of the scr een

g. Under the first Marker To field, select Peak. h. Under the second Marker To, select Ref Level. i. From the Controls menu, select Auxiliary. The Auxiliary me nu will appear

at the bottom of the screen.

j. Under Sensitivity, select the lower field and choose 2 dB/div. k. From the Controls menu, select Marker. l. Under the first Marker To, select Peak. m. Under the second Marker To, select Ref Level. n. From the Controls menu, select Main. The Main menu will appear at the

bottom of the scr een.

o. Select Ref Level. p. Under Ref Level, select the field and enter a value to increase the reference level

on the spectrum analyzer by 8 dB. Use the numeric keypad or the cursor control knob. You may c hange t he resol uti on of the refere nce l evel a djus tment by pre ssing the INCR ÷ 10 key or th e INCRx10 key.

q. Verify that the peak of the signal is close to the center of the spectrum ana lyzer

display.

r. From the Controls menu, select Marker. The Marker menu will appear at the

bottom of the scr een

s. Under the first Marker To field, select Peak. t. Record the Marker Lvl (in the upper righ t corner of the scre en) as POWER8921

in dBm.

Chapter 3, Setting Up

Determining Calibration Parameters

7. De-key the tran smitter.

8. Calculate the cali bration parameter using the following formula:

Calibration parameter = POWERREF + ATTVALUE − POWER8921

9. Enter the value(s) of the calibration param eter(s) into the p arameter(s) TX path loss to

harmonic filter 1 (to) 8.

Receiver Path Loss Calibration

This procedure is used to obtain values for the parameter(s) RX path loss to antenna 1 (to) 6.

When making a re ceiver sensitivity measurement wi th the Test Set, the following losses or inaccuraci es will be present in the measured results:

a) Cable losses. b) Directional couple r los s es . c) Test Set output level ac curacy.

The following procedure will use an exte rnal, highly accurate power meter to determine a calibrat ion fac tor that will correct for the errors a and b listed above. A single factor for each RX antenna is obtained. No correction is provided for changes in loss versus frequency.

Setting Up

Chapter 3

Chapter 3, Setting Up

Determining Calibration Parameters

To determine this calibration factor:

Figure 10 Receiver Path Loss - POWERREF Measurement

NOTE: Steps a through f below may be performed automatically by running “TEST_08 -Manual

1. See figure 10. Zero the power meter and set the power meter calibration factor if

required. Connect the power meter sensor to the Test Set DUPLEX OUT.

Power Meter

Sensor

2. Set the Test Set to generate an unmodulated RF signal at an amplitud e su fficient to

measure the path and coupler loss with the power meter a nd power sensor being used. Do this by performing the following steps.

Switch and Calibration Aid” and sel ecting Set the HP 8921A for RX path calibration.

HP 8921A

DUPLEX OUT

a. Press PRESET. b. From the To Screen menu, select RF GEN. The RF GENERATOR screen will

appear.

c. Under RF Gen Freq, select the field and enter 834.5 MHz. d. Under AF Gen1 To, selec t the lower field and pre ss the Tes t Set ON/OFF key to

set it to O F F .

e. Under Output Port, se lect the field and press the cursor control knob to make

Dupl underlined. (This se lects the DUPLEX OUT port.)

f. Under Amplitude, select the field and enter the value as required by the couple r

loss and sensor sensitivity. You must not change this amplitude for the remainder of this procedure.

3. Record the pow er meter reading as POW ERREF in dBm.

Chapter 3, Setting Up

Determining Calibration Parameters

4. See figure 11 . Conne ct the Test Set DUPLEX OUT to the common port of the RX

antenna switch. Terminate the RF coupler port leading to the antenna. Conne ct the power meter sensor to the RF coupler port that normally attaches to the receiver input.

HP 8921A

DUPLEX OUT

Power Met e r

Coaxial Switch

From Antenna

Coupler 1

50 Ohm Termination

Sensor

To Receive r

Figure 11 Receiver Path Loss - POWERRERCEIVER Measurement

5. Switch the coaxial swi tch to the desired position, either manually or by using

“TEST_08 - Manual Switch and Calibration Aid”. If you are using TEST_08, verify that the switc h is properly configured, with the right ent r ies made to the TESTS (External Devices) screen.

6. Record the po w er meter r eading as POWERRECEIVER in dBm.

7. Calculate the ca libration parameter usi ng the fo llowing formu la: Calibrat ion param eter

= POWERREF − POWERRECEIVER

8. Repeat steps 5 through 7 for the other antenna paths.

9. Enter the values resulting from these steps into the para mete r(s) RX path loss to

antenna 1 (to) 6.

Setting Up

Chapter 3

Chapter 3, Setting Up

Determining Calibration Parameters

Reference Distribution Module Level Correction Factor

To determine this calibration factor:

The method of measurement de scribed here may be used to obtain a value for the parameter RDM level correction factor. The Te st Software will use th is cor recti on factor to enhance the accuracy of 3-MHz leve l measurements using the Test Set spectrum analyzer.

In the procedure, you will measure the level of the 3-MHz RDM/URDM signal using a power meter. You will then measure it on the Test Set spectrum analyzer. The spectrum analyz er will cente r the 3-MHz signal on th e displa y. Then you will determin e the dif fere n ce b etw een the power meter reading and the spectrum analyzer reading.

1. Zero the power meter if required.

2. Set the power meter calibration factor if requi red.

3. Remove the 50-ohm load that is on the URDM/RDM Phono #2 jack.

4. See figure 12 . Connect the power meter sensor to an ada p ter that is atta ched to the

URDM/RDM Phono #2 jack.

Power Meter

BSC Backplane

Sensor

50 Ohms

Figure 12 RDM Level Correction - POWERREF Measurement

5. Record the power meter reading in dBm as POWERREF.

6. Disconnect the power meter sensor.

3 MHz Outputs

RF IN/OUT

Chapter 3, Setting Up

Determining Calibration Parameters

7. See figure 13. Conne ct a standard test cable between the 3 MHz Phono #2 jack, and

the Test Set RF IN/OUT connector.

HP 8921A

BSC Backplane

Standard Test Cable

(Used when measuring RDM level and calibrat ion)

3 MHz Outputs

50 Ohms

Figure 13 RDM Level Correction - POWER8921 Measurem ent

8. Perform the following steps:

NOTE: The steps a t hrough r, li sted below, may be performed automaticall y by running “ TEST_08

- Manual Switch and Calibration Aid” and selecting Read the spec. analyzer RDM calibration.

a. Press PRESET. b. From the To Screen menu, select SPEC ANL. The SPECRUM ANALYZER

screen w il l app ear.

c. From the Controls menu, select Main. The Main menu will appear at the

bottom of the scr een.

d. Select Center Freq. Enter 3 MHz. e. Select Span. Enter 50 kHz. f. From the Controls menu, select Marker. The Marker menu will appear at the

bottom of the scr een

Setting Up

Chapter 3

g. Under the first Marker To, sele ct Peak. h. Under the second Marker To, select Ref Level.

Chapter 3, Setting Up

Determining Calibration Parameters

i. From the Controls menu, select Auxiliary. The Auxiliary me nu will appear

at the bottom of the screen.

j. Under Sensitivity, select the lower field and enter 2 dB/div. k. From the Controls menu, select Marker l. Under the first Marker To, select Peak. m. Under the second Marker To, select Ref Level. n. Select Ref Level. o. Under Ref Level, select the field and enter a value to increase the reference level

p. Verify that the peak of the signal is close to the center of the spectrum ana lyzer

display.

Combi n e r to T e st Set Path Loss Factor

q. Under the first Marker To, select Peak. r. Record the Marker Lvl (in the upper righ t corner of the screen ) as POWER8921

in dBm.

9. Calculate t he ca librat ion para meter usi ng the f ollo wing formu la: Cali bration param eter

= POWERREF − POWER8921

10. Enter the value obtai ned int o the parame ter RDM leve l c orre ct io n facto r. Make c ertai n

to enter als o the sign of the value. The value o btained in step 9 is added to spectrum analyzer readings ma de by the Test Software, thus im proving accuracy.

This calibration factor is used in “TEST_06 - Combiner Adjustment”. It is the value entered into the parameter TX path loss to combiner for adjustment.

If you leave an RF coupler in the measurement path, you may obtain the value of the parameter by copying it from the value of the parameter T X path loss to harmonic filter (n), where “n” is the harmonic filter that you are using. You must use the same measurement method, power meter or spectrum analyzer, for calibration and tes ting.

If you do not use the RF coupler, the calibration factor must cover the loss in the cable used between the harmonic filt er output and the Test Set RF IN/OUT connector. You must measure the loss of this cable. One way to do this is to use the method in "Receiver Path Loss Calibration" on page 85, replacing the RX antenna switch, RF coupler, and cabl es with the cable that you are measuring. Enter the loss value into the parameter TX path loss to combiner for adjustment.

Procedures

Chapter 3, Setting Up

Procedures

A Procedure is a collection of parameters, pass/ fail limits, and a test sequence, all saved in a file that can be run to customize the Test Software to a specific application. The application, for instance, might be a particular cell site or base station. After you have create d a Procedure, store the file on an SRAM card or disk.

This section describe s the use of such Proc edures to save and retrieve files. You should identify any Procedur e that you wish to sa ve with a name that refers

to a particular application. In use, you select the Procedure for the application after you connect the Test Set. It would pro babl y be appropriate to have a Procedure, or perhaps a set of Proced ures, for each of the cell sites that you maintain.

You are not requir ed to save a TEST se quenc e in a Proc edure. Each of t he TESTs , TEST_01 through T EST_11, i s a st and-alon e TEST. After you se lect a Proce dure, you may select which of the TESTs that you wish to run.

When you save a Procedure, you save only parameters, pass/fail limits, and a test sequence. The SRAM card or disk must a lso c ontain a Library f ile. A Library f ile contains the names of all of the pa rameters, pass/fai l limits and TESTs that are in the Test Software. Ordinarily, the Library that you use will be the Library tha t is supplied with your Test Software . I t is named

MOT_CS. When you save your

Procedure, the Library will be saved automatically on the same SRAM card or disk.

The Procedure supplied with your Test Softwa re will be the first procedure that appears in the

Filename:

Choices: menu when you select the Select Procedure

field. It is named MOT_CS and will be displayed if your Test

Software O TP card is ins er te d. Procedures do not conta in actua l program steps or code. Thes e software steps are

contained in a code file . The code f ile

MOT_CS is on the Test Software OTP card.

Setting Up

Chapter 3

Chapter 3, Setting Up

Procedures

Saving a Procedure After you have set up the Test Software for a particular application and thereby

created a Procedure, you may save the Proce dure to an SRAM card, the internal RAM disk, or an external disk drive.

NOTE: The SRAM card or disk that you use must be initialized before its first use. See

"Initializi ng an SRAM Card" on page 115 or "Initializing a Disk" on page 114 in "Data Collection" on page 113. If you are using a disk drive, you might be required

to enter the Devices) scree n. I t will be us ed when the on the TESTS (Main Menu) screen is

See "Conventions Used," in chapter 1, on page 49 for descriptions of the terms select and enter.

External Disk Specification into the TESTS (External

Select Procedure Location: field

Disk.

Chapter 3, Setting Up

Procedures

To Save a Procedure:

1. Press TESTS. The TESTS (Main Menu) screen will appear.

2. On the TESTS (Main Menu), scre en verif y tha t the Libra ry i s the o ne that was shipp ed

with your Test Software. Th e first or only ite m under Choices: should be MOT_CS. If it is not, loa d the MOT_CS Procedure. See "Gett ing Started," in chapter 1, on page

34.

3. From the CUSTOMIZE TEST PROCEDURE: menu, select Proc Save/Delete

Procedure. The TESTS (Save/Delete Procedure) screen will appear.

4. Select Select Procedure Location:. The Choices: menu will appear in the

lower right-hand area of the screen.

5. From the Choices: menu, select the desi red l ocati on. If the c ard or di sk ha s not b een

used before, it must be initialized before a file can be saved. See

SRAM Card" on page 115

disk, see “Memory Car ds/Ma ss Storag e ” in the Test Set User’s Guide.

6. Select Enter Procedure Filename:. The Choices: men u w ill re ma i n in t h e

lower right-hand area of the screen.

7. Using the list of characters in the Choices: menu, enter a filename. The filename

must be nine characters or less.

8. When filename is complete, select Done from the menu.

9. If you sele cted Card, ins ert an i nitiali zed SRAM ca rd into t he sl ot on the T est Set f ront

panel.

in "Data Collect ion" on page 113. To init iali ze a RAM

"Initializ ing an

10. Verify that the card or other medium is not write-protected. See "Mem o r y Ca rd s , " in

chapter 2, on page 53.

11. Sel ect Enter Description for New Procedure:. The Choices: menu

will remain in th e lo w er righ t -h a nd area of th e scree n.

12. Using the list of characters in the Choices: menu, enter comments.

13. When the comments are complete, select Done from the menu.

14. Under Procedure Library:, select Current (Current underline d). The name of

the Library will be displayed on the TESTS (Main Men u) screen. If you wis h to check this, press k5 (Main Menu).

15. Under Code Location:, select memory Card, RAM disk, or external Disk. When

a procedure is run, the TESTS subsyste m will check thi s location for a code file if it is not resident in the Test Set battery-bac ked-up memory. This location will usually be the Test Software OTP card.

16. Press k1 (Save Proc). A Procedure will be saved at the locati on that you selected.

Setting Up

Chapter 3

Chapter 3, Setting Up

Procedures

Loading a Procedure

To load a Procedure:

Deleting a Procedure

To delete a Procedure:

If you have saved a Procedure on some storage medium, you may retrie ve it and load it into the Test Set battery -bac ked-up memory.

1. Press TESTS. The TESTS (Main Menu) screen will appear.

2. Select Select Procedure Location:. The Choices: menu will appear in the

lower right-hand area of the screen.

3. From the Choices: menu, select the location whe re the Procedur e is stored: memory

Card, RAM disk, or external Disk drive.

4. Select Select Procedure Filename:. The Choices: menu wil l r em a in in

the lower right-hand area of the screen.

5. From the Choices: menu, select the Procedure file that you wish to load.

6. Read the Description: field t o ensure that th e loaded Procedure file is the co rrect

one.

If there is a Proced ur e on an SRA M card , RAM disk, or external d isk drive t h at you no longer need, you may delete it.

1. Press TESTS. The TESTS (Main Menu) screen will appear.

2. From the CUSTOMIZE TEST PROCEDURE: menu, select Proc Save/Delete

Procedure. The TESTS (Save/Delete Procedure) screen will appear.

3. Select Select Procedure Location:. The Choices: menu will appear in the

lower right-hand area of the screen.

4. From the Choices: menu, select the desired location.

5. Select Select Procedure Filename:. The Choices: menu w il l r em ain in

the lower right-hand area of the screen.

6. From the Choices: menu, select the name of the procedure that you wish to delete.

7. Press k2 (Del Proc).

8. Answer the prompt by pressing the SHIFT key and then the YES key if the entries are

correc t. The Procedure will be deleted.

Chapter 3, Setting Up

Procedures

Securing a Procedure

After you have set up your Test Software with a testing order, channel information, test parameters, and pass/fail lim its, thereby creating a Procedure, you may wish to secure it. This will prevent the vie wing and chan ging of those functions. In this process, you may select the items that you wish to secure. The IBASIC SECURE_IT program is provided in the Test Set firmware to do this .

You may secure the Procedure that is suppl ied with the Test Software. It is shipped un-secured.

To secure a Procedure:

NOTE: RAM refers to the RAM di sk me mory wit hin the tes t se t. Bef or e se lect ing RAM, y ou mus t

1. Press TESTS. The TESTS (Main Menu) screen will appear.

2. Select Select Procedure Location:. The Choices: menu will appear in the

lower right-hand area of the screen.

3. From the Choices: menu, select ROM.

4. Select Select Procedure Filename:. The Choices: menu wil l r em a in in

the lower right-hand area of the screen.

5. From the Choices: menu, select IB_UTIL (or SECURE_IT).

6. Press k1 (Run Test).

7. Select the location of the Procedure that you wish to secure: k1 (memory Card) or

k2 (RAM.)

initialize the RAM as a disk. See "Initializing an SRAM Card" on page 115.

8. Proceed with the on-line instructions. You may wis h to se cure only one of the items,

such as pass/fail limits.

9. When you are prompte d to enter t he pass number, enter any sequence of numerals

0 through 9 using the DATA keypad. Enter 9 digits or less.

Setting Up

Chapter 3

Chapter 3, Setting Up

Procedures

Un-Securing a Procedure

After you have secured a Procedure, you may un-sec ure it. In this process, you may select the items that you wish to un-secure. The IBASIC SECURE_IT program is provide d in the Test S et fir mware to do this. To u n-secure a proce dure, you must know the

To un-sec ure a Procedure:

NOTE: If the procedure includes any item that is secured, you will be prompte d for the pass

1. Press TESTS. The TESTS (Main Menu) screen will appear.

2. Select Select Procedure Location:. The Choices: menu will appear in the

lower right-hand area of the screen.

3. From the Choices: menu, select ROM.

4. Select Select Procedure Filename:. The Choices: menu wil l r em a in in

the lower right-hand area of the screen.

5. From the Choices: menu, select IB_UTIL (or SECURE_IT).

6. Press k1 (Run Test).

7. Select the location of the procedur e that you wish to un-s ecure: k1(memory Card) or

k2 (RAM.).

8. Enter the name of the procedure that you wis h to un-secure.

number.

pass number.

9. Proceed with the on-li ne instructio ns. Select the ite ms that you wish to un-secure.

10. When you are prompted, enter the pass number using the DATA keypad.

Chapter 3, Setting Up

Procedures

Copying a Procedure

If you wish to have more than one copy o f Procedure s t hat you u se often , you may copy these at any time.

Using the COPY_PL ROM Program

The program COPY_PL in Test Set ROM copies Procedure and Library files onto an SRAM card. It may also be used to initializ e an unini tialize d SRAM card. This program does not copy executable program (code) files. The memory card used must be of the SRAM (Static Random-Access Memory) type, not the OTP (One Time Programmable) type.

1. Press TESTS. The TESTS (Main Menu) screen will appear.

2. Select Select Procedure Location:. The Choices: menu will appear in the

lower right-hand area of the screen.

3. From the Choices: menu, select ROM.

4. Select Select Procedure Filename:. The Choices: menu wil l r em a in in

the lower right-hand area of the screen.

5. Select IB_UTIL (or COPY_PL).

6. Press k1 (Run Test) to start the program.

7. Follow the displayed instructions.

Setting Up

Chapter 3

Chapter 3, Setting Up

Procedures

Copying Files Using IBASIC Commands

You may copy files from one storage device to another using I BASIC COPY commands. For example, to copy a file from an inserted memory car d to the left drive of an external dual-disk drive with HP-IB address 700, enter the following command into the TESTS screen IBASIC command line:

COPY “MU_TEST:INTERNAL” TO “MYFILE:,700,0”

You may copy a file from another memory card to an SRAM card by loading the program from the first memory card into the Test Set, inserting an initiali zed SRAM card, and then using the IBASIC SAVE command. Enter the following:

SAVE “MY_TEST:INTERNAL”

You may list the names of the files stored in a memory card or disk catalog by using the IBASIC CAT command. To display the file names on a memory card, enter the following:

CAT “:INTERNAL” or CAT

If the storage medium is already defined to be the memory card, then

”:INTERNAL” is optional. If you are entering many characters into the IBASIC

command line, it would be more efficient to con nect a terminal to the Test Set. See "Serial Port Configuration" on page 109. The same app lies if you ha ve many files to list. File names displayed with the CAT IBASIC command scroll up past the top of the Test Set screen and cannot be scrolled down.

Detailed descript ions of IBASIC commands are contained in HP Instrument BASIC (HP part number E2083-90000).

Chapter 3, Setting Up

Entering Parameters, Pass/Fail Limits, and External Device Configuration

Parameters, pass/fail limits, and external device configuration entries offer flexibility in the way that you use the Test Softwa re. Default values for parameters and pass/f ail limits are included in the Test Software. This section describes the process for changing those values.

NOTE: The Channel Information test function is not used by the Test Software. Base station

frequencies are coded into the Test Software, or are determined by messages sent by the base station to the Test Set. Entries in the fields in the TESTS (Channel Information) screen will not affect the operation of the base station Tes t Software.

Parameters Parameters are values that you enter to optimize the Test Software for your use.

Many of the parameters are determined by examining your test needs. An example of this is the parameter GN site has LNAs. Other p ara meters are determined by performing measurements to calibrate items in your Test System . An example of this is the parameter RX path loss to antenna 1.

See "Conventions Used," in chapter 1, on page 49 for descriptions of the terms select and enter.

To edit a parameter value:

1. Press TESTS. The TESTS (Main Menu) screen will appear.

2. From the CUSTOMIZE TEST PROCEDURE: menu, select Parm Test

Parameters. The TESTS (Test Parameters) screen will appear.

3. Select Parm#.

4. Select the desired parameter number.

5. Select Value.

6. Enter the desired value using the DATA keypad, then press ENTER.

•Use the ⇐ key to backspace.

• Press CANCEL to cancel entries and retain th e old value.

7. Press k5 (Main Menu) (or TESTS) to return to the TESTS (Main Menu) screen.

Setting Up

Chapter 3

Chapter 3, Setting Up

Entering Parameters, Pass/Fail Limits, and External Device Configuration

Default values are set into the Test Software. Some of these are derived from standard methods of measurement and some are derived from Motorola requirements. Load the MOT_CS Proce dur e and select the TESTS (Test Parameters) screen to se e the defa ult values.

You should verify that paramete rs are set properly after you select the TESTs to be placed in your se quence. Lists of the pa rameters u sed by e ach of the TESTs are contained in See chapter 5, "TESTs - Reference" on page 143.

Some parameters are designed to provide flexibility in the way tests are run. For example, the parameter GN auto exit adj allows you e nter the number of measurements that must be withi n specifica tion bef ore the program automati call y exits an adjustment procedure.

There are ten general parameters that affect the operation of many of the tests in the Test Software. Those are list ed below:

GN alw a ys cal s i g /scan [0=n o 1 =y es] GN auto exit adj [0=no xx=times in spec] GN perform adj [0=no 1=on fail 2=always] GN perform extended tests [0=no 1=ye s] GN site [0=non-wireline 1=wireline] GN site av er age voice level [A V L] GN site has LNAs [0=no 1=yes] GN test state of [0=INS-OPT 1=MANUAL] GN type of site [0=omni 1=sec .skip ant] GN verify all selections [0=no 1=yes]

Refer to the secti on " Determining Ca libra tion Paramet ers" on pa ge 81 for details on how to obtain values for parameters that require a measurement.

Refer to chapter 6, "Parameters - Referen ce," on page 187 for a description of each parameter.

Refer to chapter 5, "TESTs - Reference," on page 143 for lists of the parameters that are used in each TEST.

Parameters remain in batte ry -backed-up memory until you select a Procedure to run. If you wish to prevent the parameter s from being lost when a new Procedure is selected, save the parameters in a Procedure. See "Saving a Procedure" on page

92.

100

Agilent 8921A Users Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

HP 11807B Option 040 Software User’s Guide

Product Description

About the Test Software

About the Test System

Testable C el l Site Eq uipment

Using the Test Software

Firmware D ifferences

Getting Started

To Turn On and Set Up the Test Set:

To Select Test Software Procedure Location:

To Load and Run Test Software:

To Load and Run Test Software: (Continued)

To Change the Order of Tests:

To Change the Order of Tests: (Continued)

To Select URDM or RDM Frequency/Level test:

To run TEST_02 URDM or RDM Frequency/Level:

Learning To U se the Test Software

In this Manual

Manual Contents

Conventions Used

Equipment

Cell Site Equipment

Memory Cards

Test Software Memory Cards

SRAM Cards An SRAM card may be used to store test res ults and Pro cedure s that you produc e.

Memory Card Storage Space

HP 8921A Cell Site Test Set

Test Set Firmware The HP 8921A firmware revision number must be A.06.09 or later. At the time

Test S et Option Depending on your appl ication, the Radio Interface Card, Option 020, to the Test

Other Software Tools

Peripheral Items

HP Supplied Peripheral Item s

RF and Audio Switching Arrangements

RF and Audio Switches

Swit c h Control Input Buffer

RF Couplers A directional couple r with low through-path loss is ordinarily installed in each of

50-Ohm Terminations

Cables, Adapters, and Connectors

HP Supplied Connector Ki t

VSWR and Cable Fault Ancillary Equipment

High Accuracy Frequency Reference

Documentation

Vendor Inform ation

Setting Up

Equipment Connections

Receiver RF Connections

Transmitter RF Connections

Audio Connections An SPDT switch must be installed so that the Test Software can automatically

Connection fo r RS-232 Base Stat ion Co ntrol

Serial Port Connections for Data Collection

Printer Connection A seri al printer may be connected to the Test Set Serial port. An HP-IB printer

Serial Port Location

Parallel Port Location

Disk Drive Connections

Radio Interface Connections

DC Power to the RF and Audio Switches

Determining Calibration Paramete rs

Transmitter Path Loss Calibration

Receiver Path Loss Calibration

Combi n e r to T e st Set Path Loss Factor

Procedures

Saving a Procedure After you have set up the Test Software for a particular application and thereby

Loading a Procedure

Deleting a Procedure

Securing a Procedure

Un-Securing a Procedure

Copying a Procedure

Parameters. The TESTS (Test Parameters) screen will appear.