Agilent 8920B Specifications Sheet

TDMA Mobile Test Application Guide

Manual and Automated IS-137 Mobile Testing with

the HP 8920B Option 801 Test System

83206A

H

H

TDMA CELLULAR ADAPTER

83236B
PCS Interface

PWR REF

ANALYZER ANALYZER ANALYZER GENERATOR

UNLOCK

DATA

BASEBAND

CLOCK IN

DATA IN

TRIGGERINBASEBAND

DATA IN

Manufacturing Part Number: 08920-90240

© Copyright Hewlett-Packard 1999

Printed in U.S.A October 1999

Revision B

Notice

Information contained in this document is subject to change without notice.

All Rights Reserved. Reproduction, adaptation, or translation without prior written
permission is prohibited, except as allowed under the copyright laws.

This material may be reproduced by or for the U.S. Government pursuant to the Copyright
License under the clause at DFARS 52.227-7013 (APR 1988).

Hewlett-Packard Company
Education Tools R&D Department
24001 E. Mission
Liberty Lake, WA 99019-9599
U.S.A .

2

Manufacturer’s Declaration

This statement is provided to comply with the requirements of the German Sound
Emission Directive, from 18 January 1991.

This product has a sound pressure emission (at the operator position) < 70 dB(A).

• Sound Pressure Lp < 70 dB(A).

• At Operator Position.

• Normal Operation.

• According to ISO 7779:1988/EN 27779:1991 (Type Test).

Herstellerbescheinigung

Diese Information steht im Zusammenhang mit den Anforderungen der
Maschinenlärminformationsverordnung vom 18 Januar 1991.

• Schalldruckpegel Lp < 70 dB(A).

•Am Arbeitsplatz.

• Normaler Betrieb.

• Nach ISO 7779:1988/EN 27779:1991 (Typprüfung).

3

Safety Considerations

GENERAL

This product and related documentation must be reviewed for familiarization with safety
markings and instructions before operation.

This product has been designed and tested in accordance with IEC Publication 1010,
"Safety Requirements for Electronic Measuring Apparatus," and has been supplied in a
safe condition. This instruction documentation contains information and warnings which
must be followed by the user to ensure safe operation and to maintain the product in a safe
condition.

SAFETY EARTH GROUND

A uninterruptible safety earth ground must be provided from the main power source to the
product input wiring terminals, power cord, or supplied power cord set.

CHASSIS GROUND TERMINAL

To prevent a potential shock hazard, always connect the rear-panel chassis ground
terminal to earth ground when operating this instrument from a dc power source.

SAFETY SYMBOLS

!

WARNING

CAUTION

Indicates instrument damage can occur if indicated operating limits are
exceeded. Refer to the instructions in this guide.

Indicates hazardous voltages.

Indicates earth (ground) terminal

A WARNING note denotes a hazard. It calls attention to a procedure,
practice, or the like, which, if not correctly performed or adhered to,
could result in personal injury. Do not proceed beyond a WARNING
sign until the indicated conditions are fully understood and met.

A CAUTION note denotes a hazard. It calls attention to an operation
procedure, practice, or the like, which, if not correctly performed or adhered
to, could result in damage to or destruction of part or all of the product. Do not
proceed beyond an CAUTION note until the indicated conditions are fully
understood and met.

4

Safety Considerations for this Instrument

WARNING

This product is a Safety Class I instrument (provided with a
protective earthing ground incorporated in the power cord). The
mains plug shall only be inserted in a socket outlet provided with a
protective earth contact. Any interruption of the protective
conductor inside or outside of the product is likely to make the
product dangerous. Intentional interruption is prohibited.

Whenever it is likely that the protection has been impaired, the
instrument must be made inoperative and be secured against any
unintended operation.

If this instrument is to be energized via an autotransformer (for
voltage reduction), make sure the common terminal is connected to
the earth terminal of the power source.

If this product is not used as specified, the protection provided by
the equipment could be impaired. This product must be used in a
normal condition (in which all means for protection are intact) only.

No operator serviceable parts in this product. Refer servicing to
qualified personnel. To prevent electrical shock, do not remove
covers.

Servicing instructions are for use by qualified personnel only. To
avoid electrical shock, do not perform any servicing unless you are
qualified to do so.

The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the product from all voltage sources
while it is being opened.

Adjustments described in the manual are performed with power
supplied to the instrument while protective covers are removed.
Energy available at many points may, if contacted, result in personal
injury.

The power cord is connected to internal capacitors that my remain
live for 5 seconds after disconnecting the plug from its power supply.

For Continued protection against fire hazard, replace the line fuse(s)
only with 250 V fuse(s) or the same current rating and type (for
example, normal blow or time delay). Do not use repaired fuses or
short circuited fuseholders.

5

CAUTION

Always use the three-prong ac power cord supplied with this product. Failure
to ensure adequate earth grounding by not using this cord may cause product
damage.

This product is designed for use in Installation Category II and Pollution
Degree 2 per IEC 1010 and IEC 664 respectively. For indoor use only.

This product has autoranging line voltage input, be sure the supply voltage is
within the specified range.

Ventilation Requirements: When installing the product in a cabinet, the
convection into and out of the product must not be restricted. The ambient
temperature (outside the cabinet) must be less than the maximum operating

temperature of the product by 4° C for every 100 watts dissipated in the
cabinet. If the total power dissipated in the cabinet is greater than 800 watts,
then forced convection must be used.

Product Markings

CE - the CE mark is a registered trademark of the European Community. A CE mark
accompanied by a year indicated the year the design was proven.

CSA - the CSA mark is a registered trademark of the Canadian Standards Association.

6

Hewlett-Packard Warranty Statement for
Commercial Products

HP 8920B Option 801

Duration of Warranty: One Year

1. HP warrants HP hardware, accessories and supplies against defects in materials and
workmanship for the period specified above. If HP receives notice of such defects during
the warranty period, HP will, at its option, either repair or replace products which prove
to be defective. Replacement products may be either new or like-new.

2. HP warrants that HP software will not fail to execute its programming instructions, for
the period specified above, due to defects in material and workmanship when properly
installed and used. If HP receives notice of such defects during the warranty period, HP
will replace software media which does not execute its programming instructions due to
such defects.

3. HP does not warrant that the operation of HP products will be uninterrupted or error
free. If HP is unable, within a reasonable time, to repair or replace any product to a
condition as warranted, customer will be entitled to a refund of the purchase price upon
prompt return of the product.

4. HP products may contain remanufactured parts equivalent to new in performance or
may have been subject to incidental use.

5. The warranty period begins on the date of delivery or on the date of installation if
installed by HP. If customer schedules or delays HP installation more than 30 days after
delivery, warranty begins on the 31st day from delivery.

6. Warranty does not apply to defects resulting from (a) improper or inadequate
maintenance or calibration, (b) software, interfacing, parts or supplies not supplied by
HP, (c) unauthorized modification or misuse, (d) operation outside of the published
environmental specifications for the product, or (e) improper site preparation or
maintenance.

7. TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE WARRANTIES ARE
EXCLUSIVE AND NO OTHER WARRANTYOR CONDITION, WHETHER WRITTEN
OR ORAL IS EXPRESSED OR IMPLIED AND HP SPECIFICALLY DISCLAIMS ANY
IMPLIED WARRANTIES OR CONDITIONS OR MERCHANTABILITY,
SATISFACTORY QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE.

8. HP will be liable for damage to tangible property per incident up to the greater of
$300,000 or the actual amount paid for the product that is the subject of the claim, and
for damages for bodily injury or death, to the extent that all such damages are
determined by a court of competent jurisdiction to have been directly caused by a
defective HP product.

7

9. TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS

WARRANTY STATEMENT ARE CUSTOMER’S SOLE AND EXCLUSIVE REMEDIES.
EXCEPT AS INDICATED ABOVE, IN NO EVENT WILL HP OR ITS SUPPLIERS BE
LIABLE FOR LOSS OF DATA OR FOR DIRECT, SPECIAL, INCIDENTAL,
CONSEQUENTIAL (INCLUDING LOST PROFIT OR DATA), OR OTHER DAMAGE,
WHETHER BASED IN CONTRACT, TORT, OR OTHERWISE.

FOR CONSUMER TRANSACTIONS IN AUSTRALIA AND NEW ZEALAND: THE
WARRANTY TERMS CONTAINED IN THIS STATEMENT, EXCEPT TO THE
EXTENT LAWFULLY PERMITTED, DO NOT EXCLUDE RESTRICT OR MODIFY
AND ARE IN ADDITION TO THE MANDATORY STATUTORY RIGHTS
APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU.

8

DECLARATION OF CONFORMITY

according to ISO/IEC Guide 22 and EN 45014

Manufacturer’s Name:

Manufacturer’s Address:

Hewlett-Packard Co.
Spokane Division

24001 E. Mission Avenue
Liberty Lake, Washington 99019-9599
USA

declares that the product

Product Name:
Model Number:
Product Options:

RF Communication Test Set
HP 8920B

This declaration covers all options of the abo ve
product.

conforms to the following Product specifications:

Safety: IEC 1010-1:1990+A1 / EN 61010-1:1993

CAN/CSA-C22.2 No. 1010.1-92

EMC: CISPR 11:1990/EN 55011:1991 Group 1, Class A

IEC 801-2:1984/EN 50082-1:1992 4 kV CD, 8 kV AD
IEC 801-3:1984/EN 50082-1:1992 3V/m
IEC 801-4:1988/EN 50082-1:1992 0.5 kV Sig. Lines, 1 kV Power Lines

Supplementary Information:

This product herewith complies with the requirements of the Low Voltage Directive
73/23/EEC and the EMC Directive 89/336/EEC.

Spokane, Washington USA November 20, 1995

Date Vince Roland/Quality Manager

European Contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH

ö

Department ZQ/Standards Europe, Herrenberger Strasse 130, D-71034 B

9

blinger, Germany (FAX[phone])

Regional Sales and Service Offices

Eastern USA
Sales Office
Hewlett-Packard Company
2101 Gather Rd.
Rockville, MD 20850
Tel: [phone]

Southern USA
Sales and Service
Hewlett-Packard Company
1995 North Park Place
Atlanta, GA 30339
Sales
Tel: [phone]
Fax: [phone]
Service
Tel: [phone]
Fax: [phone]

Wes tern USA
Sales and Service
Hewlett-Packard Company
24 Inverness Place East
Englewood, CO 80112
Sales
Tel: [phone]
Fax: [phone]
Service
Tel: [phone]
Fax: [phone]

Eastern USA
Sales Office
Hewlett-Packard Company
2101 Gather Rd.
Rockville, MD 20850
Tel: [phone]

Southern USA
Service Center
Hewlett-Packard Company
930 E. Campbell Road
Richardson, TX 75081
Tel: [phone]

Wes tern USA
Sales and Service
Hewlett-Packard Company
1421 South Manhattan Avenue
Fullerton, CA 92631
Sales
Tel: [phone]
Fax: [phone]
Service
Tel: [phone]
Fax: [phone]

Midwestern USA
Sales and Service
Hewlett-Packard Company
5201 Tollview Drive
Rolling Meadows, IL 60008
Tel: [phone]

Western USA
Service Center
Hewlett-Packard Company
301 E. Evelyn Avenue
Mountain View, CA 94041
Tel: [phone]
Fax: [phone]

United States of America
Customer Information Center
Hewlett-Packard Company
Tel: [phone]
6:00 am to 5:00 pm Pacific Time
Parts Direct: 1-800-227-8164

South Eastern Europe
Sales and Service
Hewlett-Packard Ges. m.b.h.
Liebigasse 1
P.O. Bo x 7 2
A-1222 Vienna, Austria
Telephone: [phone]
Telex: 13 4425

European Multicountry Region
Sales and Service
Hewlett-Packard S.A.
P.O. Bo x 9 5
150, Route dv Nant_dl_AVRIL
CH-1217 Meyrin 2
Geneva, Switzerland
Telephone: [phone]
Fax: [phone]

Northern Europe
Sales and Service
Hewlett-Packard Nederland B.V.
Startbaan 16
1187 XR
Amstelveen, The Netherlands
P.O. Box 667
Telephone: [phone] X 6631
Fax: [phone]NL

10

Asia
Sales and Service
Hewlett-Packard Asia Ltd.
22-30/F Peregrine Tower
Lippo Center
89 Queensway, Central
Hong Kong
G.P.O. Box 863 Hong Kong
Telephone: [phone]
Fax: [phone]

Japan
Hewlett-Packard Japan, Ltd.
Measurement Assistance Center

9-1, Takakura-Cho, Hachioji-Shi,
Tokyo 192-8510, Japan

Telephone: [phone]
Fax: [phone]

International Sales Branch
Headquarters

Sales and Service
Hewlett-Packard S.A.
39 Rue Veyrot
P.O. Bo x 3 65
1217 Meyrin 1
Geneva, Switzerland
Telephone: [phone]
Fax: [phone]

Australia, New Zealand
Sales and Service
Hewlett-Packard Ltd.
P. O . B o x 2 2 1
31-41 Joseph Street
Blackburn, Victoria 3130
Telephone: [phone]
Fax: [phone]

Canada
Service Center
Hewlett-Packard Ltd.
11120 178 Street
Edmonton, Alberta T5S 1P2
Canada
Telephone: [phone]
Fax: [phone]

Canada
Sales and Service
Hewlett-Packard (Canada) Ltd.
5150 Spectrum Way
Mississauga, Ontario L4W 5G1
Canada
Telephone: [phone]
Fax: [phone]

Latin America
Hewlett-Packard Company
LAHQ Mexico City
Col. Lomas de Virreyes
11000 Mexico D.F.
Mexico
Telephone: [phone]
Fax: [phone]

Canada
Service Center
Hewlett-Packard Company
17500 Transcanada Highway
S. Serv Road
Kirkland, Quebec H9J 2X8
Canada
Telephone: [phone]

United Kingdom
Sales and Service
Hewlett-Packard Ltd.
Cain Road
Amen Corner
Bracknell, Berkshire
RG12 1HN
United Kingdom
Telephone: [phone]

11

12

Contents

Making Measurements

Using the PCS Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Compensating for Temperature Changes in the Interface . . 20

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Analog Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 25

Analog Mobile Origination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 30

Analog Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 35

Analog Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 41

Analog Measurements: Call Control Screen . . . . . . . . . . . . . . . 44

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 46

Analog Measurements: Analog Measurements Screen . . . . . . . 50

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 52

Digital (TDMA) Call Processing . . . . . . . . . . . . . . . . . . . . . . . . . 56

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Table of Contents

13

Contents

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Example HP Basic Program . . . . . . . . . . . . . . . . . . . . . . . . . . .58

TDMA Transmitter Measurements . . . . . . . . . . . . . . . . . . . . . . 62

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 65

TDMA Receiver Sensitivity: BER & WER . . . . . . . . . . . . . . . . . 68

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 71

TDMA Receiver RSSI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 77

Testing Message Waiting Indicator Operation . . . . . . . . . . . . .80

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 83

Testing Short Message Service Operation . . . . . . . . . . . . . . . . .86

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87

Automated Test Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 89

Caller ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Manual Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

Automated Test Flow Chart . . . . . . . . . . . . . . . . . . . . . . . . . . .94

Example HP BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . 95

HP 8920B Programming Concepts

Basic Input and Output Operations . . . . . . . . . . . . . . . . . . . . . 100

14

Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Using the OUTPUT Statement to Send Commands . . . . . . 100

General Process for Changing Settings . . . . . . . . . . . . . . . 100

Using the ENTER Statement Read Back Values . . . . . . . . . 101

General Process for Reading Back (Querying) Values . . . 101

A More Complete Example Program . . . . . . . . . . . . . . . . . 102

Using Status Registers for Call Processing . . . . . . . . . . . . . . . 103

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Adding Error Trapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Triggering Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Using Repetitive Triggering . . . . . . . . . . . . . . . . . . . . . . . . 107

Using Single Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Handling HP-IB Query Errors . . . . . . . . . . . . . . . . . . . . . . . . . 109

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

Reducing Test Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Changing Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Auto-ranging and Auto-tuning . . . . . . . . . . . . . . . . . . . . . . 111

Unnecessary Measurements . . . . . . . . . . . . . . . . . . . . . . . . 112

IS-137 Test Descriptions

2.3.2.1 Receiver Signal Level Range Capability (RF Sensitivity) 114

Procedure Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

HP 8920B Option 801 Method . . . . . . . . . . . . . . . . . . . . . . . . 114

2.3.2.1.1.3 Minimum Standard . . . . . . . . . . . . . . . . . . . . . . . 114

2.3.2.5 Mobile Assisted Handoff / Mobile Assisted Channel Allocation Bit Er-

ror Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Procedure Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

HP 8920B Option 801 Method . . . . . . . . . . . . . . . . . . . . . . . . 115

2.3.2.5.3 Minimum Standard . . . . . . . . . . . . . . . . . . . . . . . . . 115

3.1.2.2 Digital Frequency Stability . . . . . . . . . . . . . . . . . . . . . 116

Procedure Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

HP 8920B Option 801 Method . . . . . . . . . . . . . . . . . . . . . . . . 116

3.1.1.2.3 Minimum Standard . . . . . . . . . . . . . . . . . . . . . . . . . 116

3.2.1.2 & 3.2.2 Digital RF Power Output . . . . . . . . . . . . . . . . . 117

Procedure Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

HP 8920B Option 801 Method . . . . . . . . . . . . . . . . . . . . . . . . 117

3.2.1.2.3 Minimum Standard for 800 MHz Equipment . . . . 117

3.2.2 Minimum Standard for 1900 MHz Equipment . . . . . . 117

3.3.2.1 Digital Modulation Type and Accuracy . . . . . . . . . . . . 118

Procedure Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

HP 8920B Option 801 Method . . . . . . . . . . . . . . . . . . . . . . . . 118

Table of Contents

15

Contents

3.3.2.1.3 Minimum Standard . . . . . . . . . . . . . . . . . . . . . . . . .118

3.4.1.2.1 Digital Adjacent and Alternate Channel Power Due to Modulation

119

Procedure Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

HP 8920B Option 801 Method . . . . . . . . . . . . . . . . . . . . . . . . 119

3.4.1.2.1.3 Minimum Standard . . . . . . . . . . . . . . . . . . . . . . .119

3.6 Time Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120

Procedure Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Tests Supported Using the HP 8920B Option 801 and

HP 11807E Option 024 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

16

Making Measurements

1 Making Measurements

This application guide describes manual and automated procedures for testing
Telecommunications Industry Association/Electronic Industries Alliance (TIA/EIA)
Standard 136 mobile phones with the HP 83206A Cellular Adapter, HP 8920B Test Set,
and the HP 83236B PCS Interface (if PCS mobiles are being tested). Each topic includes a
description, test conditions, a manual procedure and a sample HP BASIC program.

17

Making Measurements

This document is intended to be used as a tutorial and a quick reference document. The

tests and procedures shown are those most commonly used by mobile manufacturers.

About the TIA/EIA 136 and 137 Standards

These standards describes a Time Division Multiple Access (TDMA) cellular
communications system. The major feature that distinguishes the TIA/EIA 136 and IS-137
standards from its predecessors, TIA/EIA-54B and 55, is the addition of a Digital Control
Channel (DCCH).

About the HP 83206A Cellular Adapter

The HP 83206A works with the HP 8920B to perform call processing, transmitter tests,
and receiver tests on DAMPS (TIA/EIA 54) and DCCH (TIA/EIA 136) mobiles. See IS-137

Test Descriptions on page 113.

The HP 83206A is controlled by the host HP 8920B Test Set. Once installed, the adapter
becomes part of the measurement path for the Test Set.

Without the Cellular Adapter, the Test Set can still test mobiles using standard analog
modulation schemes, such as AMPS and NAMPS.

About the HP 83236B PCS Interface

The PCS Interface extends the mobile test frequency range into the PCS band of 1.7 GHz
to 2.0 GHz. The interface is controlled entirely by the Test Set using a serial cable
connection between the instruments.

The Test Set detects the presence of the PCS Interface when the Test Set is powered-up.
However, the PCS Interface is not automatically enabled at power up. Therefore, you must

enable the PCS Interface on the Test Set’s CONFIGURE screen before making PCS
or cellular band measurements through the interface. Enabling the interface tells

the Test Set that all measurements will be made through the interface and not through the

Test Set’s own RF IN/OUT port.

Measuring High Level Analog Carriers

If you need to make high level power measurements (>1 Watt) on an analog carrier, disable
the interface on the CONFIGURE screen and connect your signal directly to the Test Sets
RF IN/OUT port. Do not exceed the level printed under the port.

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Making Measurements

Figure 1-1. Accessing the HP 8920B Screens Used for IS-137 Tests

To access the CONFIGURE screen to enable the PCS Interface (see page 20)...

Press the SHIFT key, then press the DUPLEX key.

To access the CALL CONTROL screen (to setup and perform mobile tests)...

Select the More field in the bottom-right corner of the screen, and choose CALL CNTL.

1

2

To access the DCCH CALL CONFIGURE and DCCH CALL CONFIGURE II
screens for DCCH call processing operations and temperature compensation...

Set the System Type field to DCCH on the CALL CONTROL screen, then select the
desired configuration screen.

Making Measurements

1

2

Chapter 1 19

Making Measurements

Using the PCS Interface

Using the PCS Interface

The PCS Interface must first be connected to the test set as shown in the instructions for
TDMA subscriber (mobile) testing in the HP 83236B Operating Manual.

The test set looks for the PCS Interface through its serial control connection when the test
set is first turned on. Always turn the PCS Interface and test set on at the same time, or
turn the PCS Interface on before turning on the test set.

IMPORTANT!

The PCS Interface is disabled if test set power is cycled or if the PRESET key
is pressed. To enable the use of the interface, you must set the PCS Mode field
in the CONFIGURE screen to On.

The Analog Registration program listing contains an example of how to automatically
detect the presence of the PCS interface and enable it if present.

If you are using the PCS Interface and cannot get the mobile to find a control
channel or make any measurements, make sure you have enabled the
interface before trying to find another cause.

Set to On to use the PCS Interface.

Compensating for Temperature Changes in the Interface

Operation varies over time as the interface warms up. To compensate for the change, select
the Temperature field on the DCCH CALL CONFIGURE II screen after the interface has
been on for 30 minutes. If the temperature has changed enough to require compensation,
the interface will begin a compensation routine that lasts several seconds (you will hear
the interface making several clicking sounds during the procedure). If compensation is not
needed, the interface will not start the compensation routine.

You can query the need to compensate first (optional), or just issue the compensation
command periodically. Compensation occurs only if needed after issuing the command:

SERV:LATCH:SEL ’pcs_temp_comp_status’ !Select compensation status latch.
SERV:LATCH:VAL? !Query latch value. Returns 1 if needed, 0 if not needed.
CALLP:DCCH:PCS:TEMP:COMP !Start the compensation process.

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Making Measurements

Connections

Connections

All of the tests described in this document use a single connection from the mobile’s
antenna connector (or test port) to the RF IN/OUT port on the Test Set or PCS Interface.
No separate audio connections are used.

Making Measurements

Cellular Band (800 MHz) Testing
Without the PCS Interface

83206A

H

TDMA CELLULAR AD APTER

PWR REF

ANALYZER ANALYZER ANALYZER

UNLOCK

DATA

CLOCK IN

BASEBAND

DATA IN

GENERATOR

TRIGGERINBASEBAND

DATA IN

Dual-Band PCS (1900 MHz) and
Cellular (800 MHz) Testing With
the PCS Interface

83206A

H

H

TDMA CELLULAR ADAPTE R

83236B
PCS Interface

PWR REF

ANALYZER ANALYZER ANALYZER GENERATOR

UNLOCK

DATA

BASEBAND

CLOCK IN

DATA IN

TRIGGERINBASEBAND

DATA IN

Chapter 1 21

Making Measurements

Analog Registration

Analog Registration

Description

This function causes the mobile station to “register” with the test set. This function causes
the phone to send data such as Mobile Identification Number, Electronic Serial Number,
and phone type (Station Class Mark).

Simulating this with the test set requires placing the test set into an analog “active” mode
to simulate an active analog cell site. When the phone locks onto the test set and indicates
service, the registration function is selected on the test set. The test set sends a series of
alternating registration messages over the air until the mobile phone detects the messages
and responds. The test set then decodes and displays the registration data sent from the
mobile.

Test Conditions

• CALL CONTROL screen

•System Type = DCCH

• Control Channel = Analog, Channel Number 321

• RF Amplitude = −50 dBm (default)

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Making Measurements

Analog Registration

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type field to DCCH.
❑ For PCS mobiles:

❑ Set the MS Capab field (DCCH CALL CONFIGURE II screen) to US PCS.
❑ Set the Voc: field (CALL CONTROL screen) to match the mobile’s vocoder (typically

ACELP).

❑ Set the Cntrl Chan field to Analog

. The default channel number is 42; change it as

needed for your mobile to find service (camp).

❑ Power on the mobile and wait until it indicates service.
❑ Select the Register field.

Making Measurements

Chapter 1 23

Making Measurements

Analog Registration

Automated Test Flowchart

Reset the Test Set.

Setup an analog
control channel.

control channel.

Start

Enable the PCS

Interface (if

connected).

Activate the

Power on the

mobile.

Issue the

registration

command

Look for

registration
response from the
mobile or a status

register time-out.

Query and print

returned phone

number or post an

error message.

Stop

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Example HP BASIC Program

Making Measurements

Analog Registration

NOTE

This program contains subroutines for time-out protection and PCS interface
detection. These routines should be used in all TIA/EIA 136 call processing
programs, but are not shown in the remaining programming examples in this
document in order to highlight specific call processing procedures.

10 ! This program implements Analog Registration.

20 ! Monitors the ‘Register’ LED to determine when
30 ! registration is complete. Automatic enabling of
40 ! a connected and powered on PCS interface is provided.
50 ON TIMEOUT 7,8 CALL Escape !Recover from bus hangup.
60 COM Ts
70 CLEAR SCREEN
80 Ts=714
90 Reset_ts
100 Check_pcs
110 Setup_acc
120 Set_to_active
130 PRINT “Instructions: Turn the phone on now.”

Making Measurements

140 Register_mobile
150 END
160 Set_to_active: SUB Set_to_active
170 COM Ts
180 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
190 OUTPUT Ts;”*CLS”! Clear Status Event Registers
200 OUTPUT Ts;”CALLP:ACTIVE”
210 REPEAT
220 OUTPUT Ts;”STAT:CALLP:EVENT?”
230 ENTER Ts;Register
240 WAIT .2 ! Gives the testset time to service other processes
250 UNTIL Register ! Returns 0 until one of the bits is set
260 SUBEND
270 Reset_ts: SUB Reset_ts
280 COM Ts
290 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
300 ENTER Ts;Done

Chapter 1 25

Making Measurements

Analog Registration

310 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
320 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” ! Select the TIA/EIA 136 standard.
330 SUBEND
340 Register_mobile: SUB Register_mobile
350 COM Ts
360 OUTPUT Ts;”STAT:CALLP:PTR 0”! Don’t latch positive transitions
370 OUTPUT Ts;”STAT:CALLP:NTR 2”! Latch “Register” LED turning off
380 OUTPUT Ts;”*CLS”! Clear Status Event Registers
390 OUTPUT Ts;”CALLP:TIM REG,30” !Optional: registration timeout 30secs.
400 OUTPUT Ts;”CALLP:REGISTER”
410 REPEAT
420 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
430 ENTER Ts;Esr,Register
440 WAIT .2 ! Gives the testset time to service other processes
450 UNTIL Register OR Esr ! Returns 0 until one of the bits is set
460 IF Esr THEN
470 PRINT “Error with Registration”
480 STOP
490 ELSE
500 OUTPUT Ts;”CALLP:PNUM?”
510 ENTER Ts;Phone_num$
520 PRINT
530 PRINT “Registration Successful!”
540 PRINT “Phone number is “;Phone_num$
550 END IF
560 SUBEND
570 Check_pcs: SUB Check_pcs
580 COM Ts
590 OUTPUT Ts;”CALLP:DCCH:PCS:CONN?”
600 ENTER Ts;Pcs_detect$
610 IF Pcs_detect$<>”””PRES””” THEN
620 SUBEXIT
630 ELSE !If PCS Interface is present.
640 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
650 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”
660 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’” !Select PCS MS.

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Making Measurements

Analog Registration

670 END IF
680 SUBEND
690 Escape: SUB Escape
700 COM Ts
710 CLEAR 7
720 LOCAL Ts

730 PRINT “Measurement Query Failed”
740 SUBEND
750 Setup_acc: SUB Setup_acc !Setup an analog control channel.
760 COM Ts
770 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !System Type
780 OUTPUT Ts;”CALLP:DCCH:CCTY ‘ANALOG’” !Control Channel type.
790 OUTPUT Ts;”CALLP:DCCH:CCH 321” !Cntrl Chan number - set as needed.
800 SUBEND

Making Measurements

Chapter 1 27

Making Measurements

Analog Mobile Origination

Analog Mobile Origination

Description

This function causes the mobile station to initiate a call to the test set. This function
simulates an actual origination that would normally happen when a cellular phone user
places a call with the local cellular system. The end result of this function is that a voice
channel is established between the test set and the mobile.

Simulating this with the test set requires placing the test set into an analog “active” mode.
This causes the test set to simulate an active analog cell site. When the phone locks onto
the test set and indicates service, the user dials a phone number on the mobile phone and
presses SEND. The test set receives the request from the mobile and assigns the mobile to
a voice channel.

The Traffic Chan Assignment group on the CALL CONTROL screen determines the settings
for the voice channel the mobile is told to go to.

Test Conditions

• Control Channel = Analog, Channel Number 321

• RF Amplitude = −50 dBm (default)

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type field to DCCH.
❑ For PCS mobiles:

❑ Set the MS Capab field (DCCH CALL CONFIGURE II screen) to US PCS.
❑ Set the Voc: field (CALL CONTROL screen) to match the mobile’s vocoder (typically

ACELP).

❑ Set the Cntrl Chan type to Analog

needed for your mobile to find service (camp).

❑ In the Traffic Chan Assignment area:

. The default channel number is 42; change it as

❑ Set the Type to AVC.

❑ Set the Chan to 777.
❑ Power on the mobile and wait until it indicates service.
❑ Dial a number on the mobile and press

❑ The mobile should connect, shown by the lit Connect indicator on the test set.

28 Chapter 1

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Automated Test Flowchart

Reset the Test Set.

Making Measurements

Analog Mobile Origination

Start

Enable the PCS

Interface (if

connected).

Set up an analog

control channel.

Activate the

control channel.

Set up the voice

channel.

Power on the

mobile.

Wait for mobile to

obtain service.

Dial a number and

press SEND.

Making Measurements

Look for the

Connect indicator

on the test set to be

lit. The mobile

should now be on

the assigned voice

channel.

Stop

Chapter 1 29

Making Measurements

Analog Mobile Origination

Example HP BASIC Program

For simplicity, the following program listing assumes a PCS Interface is present (and
enables it) and does not contain an error handling routine.

10 ! This uses the built-in analog call processing.
20 ! This program implements Active and Origination.

30 ! Monitors the ‘Connect’ LED to determine if page is successful.
40 ! Monitors ESR to trap errors during the origination.
50 COM Ts
60 CLEAR SCREEN
70 Ts=714
80 CALL Reset_ts
90 CALL Enable_pcs
100 CALL Setup_acc
110 CALL Set_to_active
120 CALL Setup_trafchan
130 CALL Originate
140 END
150 Set_to_active: SUB Set_to_active
160 COM Ts
170 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
180 OUTPUT Ts;”*CLS”! Clear Status Event Registers
190 OUTPUT Ts;”CALLP:ACTIVE”
200 REPEAT
210 OUTPUT Ts;”STAT:CALLP:EVENT?”
220 ENTER Ts;Active
230 WAIT .2 ! Gives the testset time to service other processes
240 UNTIL Active ! Returns 0 until one of the bits is set
250 SUBEND
260 Reset_ts: SUB Reset_ts
270 COM Ts
280 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
290 ENTER Ts;Done
300 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
310 SUBEND
320 !

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Making Measurements

Analog Mobile Origination

330 Originate: SUB Originate
340 COM Ts

350 PRINT “Instructions: Turn the phone on now”
360 PRINT “When the phone shows service, dial a number and press SEND”
370 OUTPUT Ts;”STAT:CALLP:PTR 32” ! Latch “Connect” LED
380 OUTPUT Ts;”STAT:CALLP:NTR 0” ! Ignore All Negative Transitions
390 OUTPUT Ts;”*CLS”! Clear Status Event Registers
400 REPEAT
410 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
420 ENTER Ts;Esr,Connect
430 IF Esr<>0 THEN
440 PRINT “Error during origination”
450 STOP
460 END IF

Making Measurements

470 WAIT .2 ! Gives the testset time to service other processes
480 UNTIL Connect ! Returns 0 until one of the bits is set
490 PRINT “Origination Successful!”
500 SUBEND
510 Enable_pcs: SUB Enable_pcs
520 COM Ts
530 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
540 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”
550 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’”
560 SUBEND
570 Setup_acc: SUB Setup_acc !Setup an analog control channel.
580 COM Ts
590 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !Set the System Type to DCCH.
600 OUTPUT Ts;”CALLP:DCCH:CCTY ‘ANALOG’” !Select Analog control channel.
610 OUTPUT Ts;”CALLP:DCCH:CCH 321” !Change Cntrl Chan number as needed.
620 SUBEND
630 Setup_trafchan: SUB Setup_trafchan !Setup Analog Voice (traffic) Channel.
640 COM Ts
650 OUTPUT Ts;”CALLP:DCCH:VTYPe ‘AVC’” !Go to an Analog Voice Channel.
660 OUTPUT Ts;”CALLP:DCCH:AVCHannel:VCHannel 777” !AVC number.

670 SUBEND

Chapter 1 31

Making Measurements

Analog Page

Analog Page

Description

This function causes the base station to initiate a call to the mobile station. This function
simulates an actual page that would normally happen when a base station is trying to set
up a call with a cellular phone user operating within the base station cell area. The end
result of this function is that a voice channel is established between the test set and the
mobile.

Before attempting a page, it is necessary for the test set to know the phone number or MIN
of the mobile it is trying to page. If you know the phone number or MIN, you can enter the
number into the MS ID field before paging. If you do not know the phone number or MIN,
you can get them by having the mobile find service on an active control channel and then
registering the mobile. Registering the mobile automatically enters the phone number into
the MS ID field.

When the mobile locks onto the test set and indicates service, the Page function is selected
on the test set to alert the mobile that someone is trying to call. The mobile responds by

ringing. To answer (complete) the call, the user typically presses the mobile’s SEND key.
When the call is competed, the test set indicates that it is in the Connect state.

Test Conditions

•System Type = DCCH

• Control Channel = Analog, Channel 321

• RF Amplitude = −50 dBm (default)

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Making Measurements

Analog Page

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type field to DCCH.
❑ For PCS mobiles:

❑ Set the MS Capab field (DCCH CALL CONFIGURE II screen) to US PCS.
❑ Set the Voc: field (CALL CONTROL screen) to match the mobile’s vocoder (typically

ACELP).

❑ Set the Cntrl Chan type to Analog

. The default channel number is 42; change it as

needed for your mobile to find service (idle).

❑ In the Traffic Chan Assignment area:

❑ Set the Type to AVC.

❑ Set the Chan to 777.
❑ Power on the mobile and wait until it indicates service.
❑ Enter the mobile’s MIN or phone number in the MS Id field, OR select the Register

field and wait for the phone to register and automatically enter the phone number.

❑ Select the Page field. The mobile should respond by going to the assigned voice channel

and alerting the user (ringing).

❑ Press the SEND key on the mobile to complete the call.
❑ The mobile should connect, shown by the lit Connect indicator on the test set.

Making Measurements

Chapter 1 33

Making Measurements

Analog Page

Automated Test Flowchart

Enable the PCS Interface (if

Set up an analog control channel.

Activate the control channel.

Set up the voice channel.

Start

Rest the Test Set.

connected).

Power on the mobile.

Wait for mobile to obtain service.

Register the mobile to obtain (or

enter) the phone number.

Select the Page field to call the

mobile.

Press SEND on the mobile.

Look for the Connect indicator on

the test set to be lit. The mobile

should now be on the assigned

voice channel.

Stop

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Making Measurements

Analog Page

Example HP BASIC Program

For simplicity, the following program listing assumes a PCS Interface is present and
enables it.

10 ! This program implements AMPS Registration and Page

20 ! Monitors the ‘Register’ LED and ‘Connect’ LED
30 ! to determine when successful.
40 ! Includes error checking with ESR register.
50 COM Ts
60 CLEAR SCREEN
70 Ts=714
80 Reset_ts
90 Enable_pcs
100 Setup_acc
110 Set_to_active

Making Measurements

120 Setup_trafchan
130 PRINT “Instructions: Turn the phone on now”
140 Register_mobile
150 Page
160 END
170 Set_to_active: SUB Set_to_active
180 COM Ts
190 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
200 OUTPUT Ts;”*CLS”! Clear Status Event Registers
210 OUTPUT Ts;”CALLP:ACTIVE”
220 REPEAT
230 OUTPUT Ts;”STAT:CALLP:EVENT?”
240 ENTER Ts;Active
250 WAIT .2 ! Gives the testset time to service other processes
260 UNTIL Active ! Returns 0 until one of the bits is set
270 SUBEND
280 Reset_ts: SUB Reset_ts
290 COM Ts
300 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
310 ENTER Ts;Done
320 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
330 SUBEND

Chapter 1 35

Making Measurements

Analog Page

340 Register_mobile: SUB Register_mobile
350 COM Ts

360 OUTPUT Ts;”STAT:CALLP:PTR 0”! Don’t latch positive transitions
370 OUTPUT Ts;”STAT:CALLP:NTR 2”! Latch “Register” LED turning off
380 OUTPUT Ts;”*CLS”! Clear Status Event Registers
390 OUTPUT Ts;”CALLP:TIM REG,30” !Registration timeout 30 secs (option).
400 OUTPUT Ts;”CALLP:REGISTER”
410 REPEAT
420 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
430 ENTER Ts;Esr,Register
440 WAIT .2 ! Gives the testset time to service other processes
450 UNTIL Register OR Esr ! Returns 0 until one of the bits is set
460 IF Esr THEN
470 PRINT “Error with Registration”
480 STOP
490 ELSE
500 OUTPUT Ts;”CALLP:PNUM?”
510 ENTER Ts;Phone_num$
520 PRINT
530 PRINT “Registration Successful!”
540 PRINT “Phone number is “;Phone_num$
550 END IF
560 SUBEND
570 Page: SUB Page
580 COM Ts
590 PRINT “When the phone rings, press send”
600 OUTPUT Ts;”STAT:CALLP:PTR 32” ! Latch ‘Connect’ LED
610 OUTPUT Ts;”STAT:CALLP:NTR 0”
620 OUTPUT Ts;”*CLS”! Clear Status Event Registers
630 OUTPUT Ts;”CALLP:PAGE”
640 REPEAT
650 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
660 ENTER Ts;Esr,Page
670 WAIT .2 ! Gives the testset time to service other processes
680 UNTIL Page OR Esr ! Returns 0 until one of the bits is set
690 IF Esr THEN

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700 PRINT “Error with Page”
710 STOP
720 END IF
730 PRINT “Page was Successful!”
740 SUBEND
750 Enable_pcs: SUB Enable_pcs
760 COM Ts
770 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
780 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”
790 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’”
800 SUBEND
810 Setup_acc: SUB Setup_acc
820 COM Ts
830 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !Set System Type to DCCH.

Making Measurements

Analog Page

Making Measurements

840 OUTPUT Ts;”CALLP:DCCH:CCTY ‘ANALOG’” !Select Analog control channel.
850 OUTPUT Ts;”CALLP:DCCH:CCH 321” !Change Cntrl Chan number as needed.
860 SUBEND
870 Setup_trafchan: SUB Setup_trafchan
880 COM Ts
890 OUTPUT Ts;”CALLP:DCCH:VTYP ‘AVC’”
900 OUTPUT Ts;”CALLP:DCCH:AVCHannel:VCHannel 777”
910 SUBEND

Chapter 1 37

Making Measurements

Analog Release

Analog Release

Description

This function causes the base station to release an active call on a voice channel. When the

release is sent to the mobile, the test set returns to the “active” state and begin
transmitting on the control channel. The mobile returns to scanning for control channels,
and should eventually lock back onto the control channel the test set is sending.

Test Conditions

•System Type = DCCH

• Control Channel = Analog, Channel Number 321

• RF Amplitude = −50 dBm (default)

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Analog Release

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ For PCS mobiles:

❑ Set the MS Capab field (DCCH CALL CONFIGURE II) screen to US PCS.

❑ Set the Voc: field (CALL CONTROL screen) to match the mobile’s vocoder (typically

ACELP).

❑ Set the Cntrl Chan type to Analog

. The default channel number is 42; change it as

needed for your mobile to find service (camp).

❑ In the Traffic Chan Assignment area:

❑ Set the Type to AVC.

❑ Set the Chan to 777.
❑ Power on the mobile and wait until it indicates service.
❑ Dial a phone number on the mobile and press

SEND (originate a call).

❑ The mobile should connect, shown by the lit Connect indicator on the test set.
❑ Select the Release field (on the Test Set) to release the call.

Making Measurements

Chapter 1 39

Making Measurements

Analog Release

Automated Test Flowchart

Reset the test set.

Enable the PCS Interface (if

Set up an analog control

Activate the control

Start

connected).

channel.

channel.

Set up the voice channel.

Power on the mobile.

Wait for mobile to obtain

service.

Dial a number on the mobile

and press SEND (originate

the call).

Look for the Connect

indicator on the test set to be

lit. The mobile should now be

on the assigned voice

channel.

Select the Release field to

release the call.

Stop

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Making Measurements

Analog Release

Example HP BASIC Program

For simplicity, the following program listing assumes a PCS Interface is present and
enables it.

10 ! This program implements the Active, Registration, Originate,

20 ! and Release states. It monitors the ‘Connect’ LED to determine
30 ! if page is successful, monitors ESR to trap origination errors, and
40 ! monitors the ‘Active’ LED to determine if release was successful.
50 COM Ts
60 CLEAR SCREEN
70 Ts=714
80 CALL Reset_ts
90 CALL Enable_pcs
100 CALL Setup_acc
110 CALL Set_to_active

Making Measurements

120 CALL Setup_trafchan
130 CALL Originate
131 CALL Release
140 END
150 Set_to_active: SUB Set_to_active
160 COM Ts
170 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
180 OUTPUT Ts;”*CLS”! Clear Status Event Registers
190 OUTPUT Ts;”CALLP:ACTIVE”
200 REPEAT
210 OUTPUT Ts;”STAT:CALLP:EVENT?”
220 ENTER Ts;Active
230 WAIT .2 ! Gives the testset time to service other processes
240 UNTIL Active ! Returns 0 until one of the bits is set
250 SUBEND
260 Reset_ts: SUB Reset_ts
270 COM Ts
280 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
290 ENTER Ts;Done
300 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
310 SUBEND
320 !

Chapter 1 41

Making Measurements

Analog Release

330 Originate: SUB Originate
340 COM Ts

350 PRINT “Instructions: Turn the phone on now”
360 PRINT “When the phone shows service, dial a number and press SEND”
370 OUTPUT Ts;”STAT:CALLP:PTR 32” ! Latch “Connect” LED
380 OUTPUT Ts;”STAT:CALLP:NTR 0” ! Ignore All Negative Transitions
390 OUTPUT Ts;”*CLS”! Clear Status Event Registers
400 REPEAT
410 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
420 ENTER Ts;Esr,Originate
430 IF Esr<>0 THEN
440 PRINT “Error during origination”
450 STOP
460 END IF
470 WAIT .2 ! Gives the testset time to service other processes
480 UNTIL Originate ! Returns 0 until one of the bits is set
490 PRINT “Origination Successful!”
500 SUBEND
510 Enable_pcs: SUB Enable_pcs
520 COM Ts
530 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
540 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”
550 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’”
560 SUBEND
570 Setup_acc: SUB Setup_acc
580 COM Ts
590 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !Set the System Type to DCCH.
600 OUTPUT Ts;”CALLP:DCCH:CCTY ‘ANALOG’” !Select Analog control channel.
610 OUTPUT Ts;”CALLP:DCCH:CCH 321” !Change Cntrol Chan number as needed.
620 SUBEND
630 Setup_trafchan: SUB Setup_trafchan !Setup AVC channel 777.
640 COM Ts
650 OUTPUT Ts;”CALLP:DCCH:VTYPe ‘AVC’” !Go to an Analog Voice Channel.
660 OUTPUT Ts;”CALLP:DCCH:AVCHannel:VCHannel 777” !AVC number.
670 SUBEND

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Analog Release

680 Release: SUB Release
690 COM Ts

700 PRINT “Getting ready to release the call...”
710 WAIT 3
720 OUTPUT Ts;”STAT:CALLP:PTR 1” !Latch “Active” LED
730 OUTPUT Ts;”STAT:CALLP:NTR 0” !Ignore All Negative Transitions
740 OUTPUT Ts;”*CLS” !Clear the Event Status Registers (ESR)
750 OUTPUT Ts;”CALLP:RELease” !Release the call.
760 REPEAT
770 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
780 ENTER Ts;Esr,Release
790 IF Esr<>0 THEN
800 PRINT “Error during RELEASE”
810 STOP

Making Measurements

820 END IF
830 WAIT .2 ! Gives the test set time to service other processes.
831 UNTIL Release ! Returns 0 until one of the bits is set.
840 PRINT “Release Successful!”
850 SUBEND

Chapter 1 43

Making Measurements

Analog Measurements: Call Control Screen

Analog Measurements: Call Control Screen

Description

This section demonstrates using the analog measurement functions on the CALL
CONTROL screen. The CALL CONTROL screen can be used for making Tx Frequency
Error and Tx Power measurements, as well as analog modulation measurements.
Whenever possible, it is desirable to use the CALL CONTROL screen for making these
measurements. This allows call processing functions (like handoffs) to be intermixed with
measurements. By intermixing measurements and call processing, this will save the time
and programming associated with switching to the ANALOG MEASUREMENTS screen.

To make measurement’s on the CALL CONTROL screen, set up the voice channel as usual
with either an origination or a page. On the CALL CONTROL screen, change the display
from 'data' to 'meas' to display four measurements at the top of the screen. In addition to
Tx Frequency Error and Tx Power measurements, the measurements for FM deviation and
AF frequency are available. The limitation of using these latter two measurements is that
the filters and inputs associated with these measurements should not be changed.

The proper settings for audio filters 1 and 2, de-emphasis, audio analyzer input, and IF
filter bandwidth are necessary for the CALL CONTROL functionality to work correctly.
They are automatically configured each time the CALL CONTROL screen is accessed.
When the test set is in the Active state (sending a control channel), the automatic settings
for these are:

• Filter 1, <20Hz HPF

• Filter 2, >99kHz LPF

• De-emphasis OFF

• AF Analyzer Input (AF Anl In) is set to FM Demod

• IF Filter, 230 kHz

When the test set is in the Connect state (on an analog voice channel), the audio filter
settings automatically change to:

• Filter 1, 300Hz HPF

• Filter 2, 15kHz LPF

The rest of the audio and IF settings remain where they were set for the Active state.

Test Conditions

•System Type = DCCH

• Control Channel = Analog, Channel Number 321

• RF Amplitude = −50 dBm (default)

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Making Measurements

Analog Measurements: Call Control Screen

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ For PCS mobiles:

❑ Set the MS Capab field (DCCH CALL CONFIGURE II) screen to US PCS.

❑ Set the Voc: field (CALL CONTROL screen) to match the mobile’s vocoder (typically

ACELP).

❑ Set the Cntrl Chan type to Analog

. The default channel number is 42; change it as

needed for your mobile to find service (camp).

❑ In the Traffic Chan Assignment area:

❑ Set the Type to AVC.

❑ Set the Chan to 777.
❑ Power on the mobile and wait until it indicates service.
❑ Dial a number on the mobile and press

SEND (originate a call).

❑ The mobile should connect, shown by the lit Connect indicator on the test set.
❑ Select the Display field on the CALL CONTROL screen to underline Meas.
❑ Read the TX Freq Error and TX Power (Avg) RF measurements.

1

❏ With the mobile’s microphone muted

, read the SAT tone’s FM Deviation and AF Freq

AF measurements.

Making Measurements

1. The mobile’s microphon e must be muted so that unintended audio modulat ion does not combine with
the SAT signal and create SAT measurement errors.

Chapter 1 45

Making Measurements

Analog Measurements: Call Control Screen

Automated Test Flowchart

Originate a call on an analog
voice channel. See “Anal og

Mobile Origination” on page

28.

Query the four analog
measurements displayed on
the CALL CONTROL screen
and print the results.

Start

Stop

Example HP BASIC Program

10 ! This uses the built-in analog call processing.
20 ! This program implements Active and Origination.

30 ! Monitors the ‘Connect’ LED to determine if page is successful.
40 ! Monitors ESR to trap errors during the origination.
50 ! Queries and prints analog measurement results.
60 COM Ts
70 CLEAR SCREEN
80 Ts=714
90 CALL Reset_ts
100 CALL Enable_pcs
110 CALL Setup_acc
120 CALL Set_to_active
130 CALL Setup_trafchan
140 CALL Originate
150 CALL Enable_meas
160 CALL Meas_freqerr
170 CALL Meas_fmdev
180 CALL Meas_affreq
190 CALL Meas_txpower
200 END

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Analog Measurements: Call Control Screen

210 Set_to_active: SUB Set_to_active
220 COM Ts

230 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
240 OUTPUT Ts;”*CLS”! Clear Status Event Registers
250 OUTPUT Ts;”CALLP:ACTIVE”
260 REPEAT
270 OUTPUT Ts;”STAT:CALLP:EVENT?”
280 ENTER Ts;Register
290 WAIT .2 ! Gives the testset time to service other processes
300 UNTIL Register ! Returns 0 until one of the bits is set
310 SUBEND
320 Reset_ts: SUB Reset_ts
330 COM Ts
340 OUTPUT Ts;”*RST;*OPC?”! Good reset technique

Making Measurements

350 ENTER Ts;Done
360 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
370 SUBEND
380 !
390 Originate: SUB Originate
400 COM Ts
410 PRINT “Instructions: Turn the phone on now”
420 PRINT “When the phone shows service, dial a number and press SEND”
430 OUTPUT Ts;”STAT:CALLP:PTR 32” ! Latch “Connect” LED
440 OUTPUT Ts;”STAT:CALLP:NTR 0” ! Ignore All Negative Transitions
450 OUTPUT Ts;”*CLS”! Clear Status Event Registers
460 REPEAT
470 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
480 ENTER Ts;Esr,Register
490 IF Esr<>0 THEN
500 PRINT “Error during origination”
510 STOP
520 END IF
530 WAIT .2 ! Gives the testset time to service other processes
540 UNTIL Register ! Returns 0 until one of the bits is set
550 PRINT “Origination Successful!”
560 SUBEND

Chapter 1 47

Making Measurements

Analog Measurements: Call Control Screen

570 Enable_pcs: SUB Enable_pcs
580 COM Ts

590 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
600 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”
610 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’”
620 SUBEND
630 Setup_acc: SUB Setup_acc
640 COM Ts
650 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !Set the System Type to DCCH.
660 OUTPUT Ts;”CALLP:DCCH:CCTY ‘ANALOG’” !Select Analog control channel.
670 OUTPUT Ts;”CALLP:DCCH:CCH 325” !Change control chan number as needed.
680 SUBEND
690 Setup_trafchan: SUB Setup_trafchan !Setup AVC channel 777.
700 COM Ts
710 OUTPUT Ts;”CALLP:DCCH:VTYPe ‘AVC’” !Go to an Analog Control Channel.
720 OUTPUT Ts;”CALLP:DCCH:AVCHannel:VCHannel 777” !AVC number.
730 SUBEND
740 Meas_freqerr: SUB Meas_freqerr !Measure RF Frequency Error
750 COM Ts
760 OUTPUT Ts;”MEAS:RFR:FREQ:ERR?” !Query the TX Freq Error.
770 ENTER Ts;Freq_err
780 PRINT “RF Frequency Error is “;DROUND(Freq_err,3);”Hz” !Round
781 !the measurement to 3 digits and print the value.
790 SUBEND
800 Meas_fmdev: SUB Meas_fmdev
810 COM Ts
820 OUTPUT Ts;”MEAS:AFR:FM?”
830 ENTER Ts;Fm_dev
840 PRINT “FM Deviation is “;DROUND((Fm_dev/1.E+3),3);”kHz” !Round
841 !the measurement to 3 digits and display in kHz (default=Hz).
850 SUBEND

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Analog Measurements: Call Control Screen

860 Meas_affreq: SUB Meas_affreq
870 COM Ts

880 OUTPUT Ts;”Meas:AFR:FREQ?”
890 ENTER Ts;Af_freq
900 PRINT “Audio Frequency is “;DROUND((Af_freq/1.E+3),4);”kHz”
910 SUBEND
920 Meas_txpower: SUB Meas_txpower
930 COM Ts
940 OUTPUT Ts;”MEAS:RFR:POW:UNIT DBM” !Change the RETURNED HP-IB
941 !MEASUREMENT value unit from Watts to dBm.
943 OUTPUT Ts;”MEAS:RFR:POW:DUN DBM” !Change the DISPLAY units
944 !on the test set from the default (Watts) to dBm.
950 OUTPUT Ts;”MEAS:RFR:POW?” !Measure RF power with PCS Interface.
960 ENTER Ts;Tx_pow

Making Measurements

970 PRINT “TX Power (Avg) is “;DROUND(Tx_pow,3);”dBm”
980 SUBEND
990 Enable_meas: SUB Enable_meas
1000 COM Ts
1010 OUTPUT Ts;”CALLP:MODE ‘MEAS’” !Select Meas on CALL CONTROL screen.
1020 SUBEND

Chapter 1 49

Making Measurements

Analog Measurements: Analog Measurements Screen

Analog Measurements: Analog Measurements Screen

Description

This section demonstrates using the analog measurement functions on the ANALOG
MEAS screen. The ANALOG MEAS screen is generally used in conjunction with the CALL
CONTROL screen. Usually the CALL CONTROL screen is used to set up a call and
perform call processing. For making measurements on the voice channel, the display is
switched to the ANALOG MEAS screen and the filters, audio inputs, and de-emphasis can
be adjusted as needed for making the measurement. When it is necessary to perform more
call processing, the CALL CONTROL screen is displayed (which automatically
re-configures filters, etc.) and functions like handoffs can be performed.

The ANALOG MEAS screen can also be used to make measurements on a mobile that is in
a test mode where the mobile is generating a reverse analog voice channel without using
the call processing overhead messages.

Test Conditions

•System Type = DCCH

• Control Channel = Analog, Channel Number 321

• RF Amplitude = −50 dBm (default)

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Analog Measurements: Analog Measurements Screen

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ For PCS mobiles:

❑ Set the MS Capab field (DCCH CALL CONFIGURE II) screen to US PCS.
❑ Set the Voc: field (CALL CONTROL screen) to match the mobile’s vocoder (typically

ACELP).

❑ Set the Cntrl Chan type to Analog

. The default channel number is 42; change it as

needed for your mobile to find service (Idle).

❑ In the Traffic Chan Assignment area:

❑ Set the Type to AVC.

❑ Set the Chan to 777.
❑ Power on the mobile and wait until it indicates service.
❑ Dial a number on the mobile and press

SEND (originate a call).

❑ The mobile should connect, shown by the lit Connect indicator on the test set.
❑ Display the ANALOG MEAS screen.
❑ Make any desired changes to the analyzer settings (arranged below the measurements).
❑ Read the TX Freq Error and TX Power (Avg) RF measurements, and the SAT tone’s

FM Deviation and AF Freq AF measurements.

Making Measurements

Chapter 1 51

Making Measurements

Analog Measurements: Analog Measurements Screen

Automated Test Flowchart

Originate a call on an analog
voice channel. See “Anal og

Mobile Origination” on page

28.

Display the ANALOG MEAS

screen.

Query the four analog
measurements displayed on
the ANALOG MEAS screen
and print the results.

Start

Stop

Example HP BASIC Program

10 ! This uses the built-in analog call processing.
20 ! This program implements Active and Origination.

30 ! Monitors the ‘Connect’ LED to determine if page is successful.
40 ! Monitors ESR to trap errors during the origination.
50 ! Queries the measurements on the ANALOG MEAS screen.
60 ! Prints the measurement results.
70 COM Ts
80 CLEAR SCREEN
90 Ts=714
100 CALL Reset_ts
110 CALL Enable_pcs
120 CALL Setup_acc
130 CALL Set_to_active
140 CALL Setup_trafchan
150 CALL Originate
160 CALL Anlmeas_screen
170 CALL Meas_freqerr

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Analog Measurements: Analog Measurements Screen

180 CALL Meas_fmdev
190 CALL Meas_affreq
200 CALL Meas_txpower
210 END
220 Set_to_active: SUB Set_to_active
230 COM Ts

240 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
250 OUTPUT Ts;”*CLS”! Clear Status Event Registers
260 OUTPUT Ts;”CALLP:ACTIVE”
270 REPEAT
280 OUTPUT Ts;”STAT:CALLP:EVENT?”
290 ENTER Ts;Active
300 WAIT .2 ! Gives the testset time to service other processes
310 UNTIL Active ! Returns 0 until one of the bits is set

Making Measurements

320 SUBEND
330 Reset_ts: SUB Reset_ts
340 COM Ts
350 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
360 ENTER Ts;Done
370 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
380 SUBEND
390 !
400 Originate: SUB Originate
410 COM Ts
420 PRINT “Instructions: Turn the phone on now”
430 PRINT “When the phone shows service, dial a number and press SEND”
440 OUTPUT Ts;”STAT:CALLP:PTR 32” ! Latch “Connect” LED
450 OUTPUT Ts;”STAT:CALLP:NTR 0” ! Ignore All Negative Transitions
460 OUTPUT Ts;”*CLS”! Clear Status Event Registers
470 REPEAT
480 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
490 ENTER Ts;Esr,Originate
500 IF Esr<>0 THEN
510 PRINT “Error during origination”
520 STOP
530 END IF

Chapter 1 53

Making Measurements

Analog Measurements: Analog Measurements Screen

540 WAIT .2 ! Gives the testset time to service other processes
550 UNTIL Originate ! Returns 0 until one of the bits is set

560 PRINT “Origination Successful!”
570 SUBEND
580 Enable_pcs: SUB Enable_pcs
590 COM Ts
600 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
610 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”
620 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’”
630 SUBEND
640 Setup_acc: SUB Setup_acc
650 COM Ts
660 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !Set the System Type to DCCH.
670 OUTPUT Ts;”CALLP:DCCH:CCTY ‘ANALOG’” !Select Analog control channel.
680 OUTPUT Ts;”CALLP:DCCH:CCH 325” !Change control channel number as

needed.
690 SUBEND
700 Setup_trafchan: SUB Setup_trafchan !Setup AVC channel 777.
710 COM Ts
720 OUTPUT Ts;”CALLP:DCCH:VTYPe ‘AVC’” !Go to an Analog Control Channel.
730 OUTPUT Ts;”CALLP:DCCH:AVCHannel:VCHannel 777” !AVC number.
740 SUBEND
750 Meas_freqerr: SUB Meas_freqerr !Measure RF Frequency Error
760 COM Ts
770 OUTPUT Ts;”MEAS:RFR:FREQ:ERR?” !Query the TX Freq Error.
780 ENTER Ts;Freq_err
790 PRINT “RF Frequency Error is “;Freq_err;”Hz”
800 SUBEND
810 Meas_fmdev: SUB Meas_fmdev
820 COM Ts
830 OUTPUT Ts;”MEAS:AFR:FM?”
840 ENTER Ts;Fm_dev
850 PRINT “FM Deviation is “;Fm_dev;”Hz”
860 SUBEND

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Analog Measurements: Analog Measurements Screen

870 Meas_affreq: SUB Meas_affreq
880 COM Ts

890 OUTPUT Ts;”Meas:AFR:FREQ?”
900 ENTER Ts;Af_freq
910 PRINT “Audio Frequency is “;Af_freq;”Hz”
920 SUBEND
930 Meas_txpower: SUB Meas_txpower
940 COM Ts
950 OUTPUT Ts;”MEAS:RFR:POW?”
960 ENTER Ts;Tx_pow
970 PRINT “TX Power (Avg) is “;Tx_pow;”Watts”
980 SUBEND
990 Anlmeas_screen: SUB Anlmeas_screen
1000 COM Ts

Making Measurements

Making Measurements

1010 OUTPUT Ts;”DISP CMEasure” !Display Analog Measurement screen.
1020 SUBEND

Chapter 1 55

Making Measurements

Digital (TDMA) Call Processing

Digital (TDMA) Call Processing

Description

This section demonstrates how to handoff calls between traffic/voice channel types. In the
example, handoffs are made between an analog voice channel to a cell band digital traffic
channel, then to a PCS band digital traffic channel, and back to an analog voice channel.
The call is then released. This simulates what might happen when a driver moves between
areas with systems that support different levels of digital call processing abilities.

Test Conditions

• Phone = Connect Mode

•System Type = DCCH

• Control Channel = Analog, Channel Number 321

• RF Amplitude = −50 dBm (default)

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Making Measurements

Digital (TDMA) Call Processing

Manual Operation

❑ Originate a call (see “Analog Mobile Origination” on page 28) to get the mobile on an

analog voice channel. If you turn up the test set’s volume with the mobile close to the

test set, you will probably hear the “squealing” SAT tone feedback through the test set’s

speaker.

1

❑ Change the fields under Voice Chan Assignment

❑ Type: = DTC

❑ Band: = Cellular

❑ Chan: = 789

❑ Voc: = ACELP
❑ Select the Handoff field. The Connect indicator will go out, the Access indicator

should light for a second or two and then go out, and the Connect indicator should be

lit again. The mobile is now on a cellular band digital traffic channel. If you turn up the

test set’s volume, you will hear a “motor boating” or buzzing sound through the test set’s

speaker. The sound is the digital traffic channel being routed through the test set’s FM

discriminator.

as follows:

Making Measurements

❑ Change these fields under Traffic Chan Assignment as follows:

❑ Band: = US PCS

❑ Channel: = 1099
❑ Select the Handoff field to tell the mobile to go to the new PCS band digital traffic

channel assignment. As before, the Connect indicator should be lit after a few seconds

if the handoff was successful.

❑ Change these fields under Traffic Chan Assignment as follows:

❑ Type: = AVC

❑ Channel: = 777
❑ Select the Handoff field to tell the mobile to go back to an analog voice channel.
❑ Select the Release field (on the test set) to end the call. The Active indicator should

be lit after the call is released.

1. The label “Voice Channel Assignment” is displayed because the Type: field was set to AVC when the
call was originated (to differentiate a digital traffic channel from an analog voice channel). When you
change the Type: field from AVC to DTC, the label over this section of fields changes from “Voice
Channel Assignment” to “Traffic Channel Assignment”.

Chapter 1 57

Making Measurements

Digital (TDMA) Call Processing

Automated Test Flowchart

Originate a call on an analog voice
channel (AVC). See “A nalo g

Mobile Origination” on page 28

Define the cellular band Dig.

Execute a handoff to the DTC.

Define the PCS band DTC settings.

Execute a handoff to the PCS DTC.

Define the analog AVC settings.

Start

Traffic Chan. settings.

Execute a handoff to the AVC.

Release the call.

Stop

Example HP Basic Program

10 ! This uses the built-in analog call processing.
20 ! This program implements Active and Origination.

30 ! Monitors the ‘Connect’ LED to determine if page
40 ! and Handoffs are successful between AVC, DTC, and PCS DTC.
50 ! Monitors ESR to trap errors during the origination.
60 COM Ts
70 CLEAR SCREEN
80 Ts=714
90 CALL Reset_ts
100 CALL Enable_pcs
110 CALL Setup_acc
120 CALL Set_to_active
130 CALL Setup_avc
140 CALL Originate
150 CALL Setup_dtc

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Digital (TDMA) Call Processing

160 CALL Handoff
170 CALL Setup_pcs
180 CALL Handoff
190 CALL Setup_avc
200 CALL Handoff
210 CALL Release
220 END
230 Set_to_active: SUB Set_to_active
240 COM Ts

250 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
260 OUTPUT Ts;”*CLS”! Clear Status Event Registers
270 OUTPUT Ts;”CALLP:ACTIVE”
280 REPEAT
290 OUTPUT Ts;”STAT:CALLP:EVENT?”

Making Measurements

300 ENTER Ts;Active
310 WAIT .2 ! Gives the testset time to service other processes
320 UNTIL Active ! Returns 0 until one of the bits is set
330 SUBEND
340 Reset_ts: SUB Reset_ts
350 COM Ts
360 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
370 ENTER Ts;Done
380 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
390 SUBEND
400 !
410 Originate: SUB Originate
420 COM Ts
430 PRINT “Instructions: Turn the phone on now”
440 PRINT “When the phone shows service, dial a number and press SEND”
450 OUTPUT Ts;”STAT:CALLP:PTR 32” ! Latch “Connect” LED
460 OUTPUT Ts;”STAT:CALLP:NTR 0” ! Ignore All Negative Transitions
470 OUTPUT Ts;”*CLS”! Clear Status Event Registers
480 REPEAT
490 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
500 ENTER Ts;Esr,Originate
510 IF Esr<>0 THEN

Chapter 1 59

Making Measurements

Digital (TDMA) Call Processing

520 PRINT “Error during origination”
530 STOP
540 END IF
550 WAIT .2 ! Gives the testset time to service other processes
560 UNTIL Originate ! Returns 0 until one of the bits is set
570 PRINT “Origination Successful!”
580 SUBEND
590 Enable_pcs: SUB Enable_pcs
600 COM Ts
610 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
620 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”
630 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’”
640 SUBEND
650 Setup_acc: SUB Setup_acc
660 COM Ts
670 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !Set the System Type to DCCH.
680 OUTPUT Ts;”CALLP:DCCH:CCTY ‘ANALOG’” !Select Analog control channel.
690 OUTPUT Ts;”CALLP:DCCH:CCH 321” !Change control chan number as needed.
700 SUBEND
710 Setup_avc: SUB Setup_avc !Setup AVC channel 777.
720 COM Ts
730 OUTPUT Ts;”CALLP:DCCH:VTYPe ‘AVC’” !Go to an Analog Control Channel.
740 OUTPUT Ts;”CALLP:DCCH:AVCHannel:VCHannel 777” !AVC number.
750 SUBEND
760 Setup_dtc: SUB Setup_dtc !Setup DTC channel 789.
770 COM Ts
780 OUTPUT Ts;”CALLP:DCCH:VTYPe ‘DTC’” !Go to a Digital Traffic Channel.
790 OUTPUT Ts;”CALLP:DCCH:VTYPe:BAND ‘Cellular’” !Select Cellular band.
800 OUTPUT Ts;”CALLP:DCCH:DTCHannel:TCHannel 789” !DTC number.
820 SUBEND
830 Setup_pcs: SUB Setup_pcs!Setup a PCS band DTC channel 1099.
840 COM Ts
850 OUTPUT Ts;”CALLP:DCCH:VTYPe:BAND ‘US PCS’” !Select PCS band.
860 OUTPUT Ts;”CALLP:DCCH:DTCHannel:TCHannel 1099” !PCS DTC number.
870 SUBEND

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Making Measurements

Digital (TDMA) Call Processing

880 Handoff: SUB Handoff !Select handoff function & check for Connect state.
890 COM Ts

900 OUTPUT Ts;”STAT:CALLP:PTR 32”
910 OUTPUT Ts;”STAT:CALLP:NTR 0”
920 OUTPUT Ts;”*CLS”
930 OUTPUT Ts;”CALLP:HANDoff”
940 REPEAT
950 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
960 ENTER Ts;Esr,Connect
970 WAIT .2
980 UNTIL Connect OR Esr
990 IF Esr THEN
1000 PRINT “Call failed to handoff properly”
1010 STOP

Making Measurements

1020 END IF
1030 PRINT “HANDOFF SUCCESSFUL!”
1040 SUBEND
1050 Release: SUB Release
1060 COM Ts
1070 PRINT “Attempting to release the call...”
1080 OUTPUT Ts;”STAT:CALLP:PTR 1” !Latch “Active” indicator (LED).
1090 OUTPUT Ts;”STAT:CALLP:NTR 0” !Ignore negative transitions.
1100 OUTPUT Ts;”*CLS” !Clear the Even Status Registers (ESR).
1110 OUTPUT Ts;”CALLP:RELease” !Release the call.
1120 REPEAT
1130 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
1140 ENTER Ts;Esr,Release
1150 IF Esr<>0 THEN
1160 PRINT “Error during Release”
1170 STOP
1180 END IF
1190 WAIT .2 !Wait to test set processing.
1200 UNTIL Release !Returns 0 until one of the bits is set.
1210 PRINT “Mobile has been released successfully.”
1220 SUBEND

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TDMA Transmitter Measurements

TDMA Transmitter Measurements

Description

The mobile’s transmitter is modulated with random data. A burst (or 10 bursts) is cap­tured and analyzed by the test set. The following measurement results are returned:

• Droop: Burst amplitude over time. It is the ratio (dB) between the amplitude at the
beginning of the burst and the amplitude at the end of the burst.

• Frequency Error: Frequency difference between the mobile's carrier and the Test Set's
receive frequency. It is derived from accumulated phase error measured as part of the
EVM measurement.

• Origin Offset: Ratio of unmodulated carrier feedthrough to the magnitude of the
modulated carrier. An ideal modulator, one that is perfectly balanced, would have no
carrier feedthrough. The measurement is called origination offset because the IQ
constellation diagram of a signal with carrier feedthrough would show the origin offset
from zero.

• Error Vector Magnitude (EVM): Overall Modulation accuracy. It is a measure, in %, of
how close the mobile transmitter's modulation vector is to the ideal modulation vector.
A perfect modulator would have zero EVM. The IS-137 standard for EVM is a
maximum of 12.5%.

• Magnitude Error: Modulation amplitude accuracy. It is a measure, in %, of how close
the magnitude of the mobile transmitter's modulation vector is to the ideal vector's
magnitude.

• Phase Error: Modulation phase accuracy. It is a measure, in degrees, of how close the
phase of the mobile transmitter's modulation vector is to the ideal vector's phase.

This test corresponds to the IS-137 Modulation Type and Accuracy Test (3.3.2.1).

Test Conditions

Mobile = Test Mode.

Transmitter measurements can be made either on the CALL CONTROL screen with the
mobile on a call, or on the DIGITAL MEASUREMENTS screen with the mobile
transmitting in test mode.

The example procedure assumes the mobile is placed in the test mode, eliminating the
need to wait for call processing to establish an active DTC.

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Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ Display the DIGITAL MEASUREMENTS screen. Note: Error messages warning you

about correlation and synchronization problems appear until your mobile is in test
mode and synchronized with the test set.

❑ Set the Traffic Chan field to match the channel number your mobile uses in test mode.
❑ If your mobile does not use Slot 1 and DVCC 1 in test mode, change these test set

settings to match your mobile’s needs.

❑ Put your mobile in its test mode (making sure to match the Traffic Chan setting).
❑ Read the EVM, Frequency Error, and Peak EVM measurements.
❑ Change the Dig Meas field from EVM 1 to EVM 10 to display the Error Vector Magnitude

for 10 bursts. Since the measurement is now made on groups of 10 bursts (instead of
after every burst), the measurement value changes more slowly than for EVM 1.

❑ Select the EVM measurement heading to display the following list of additional

measurements to choose from: Peak EVM, Phase Error, Magnitude Error, Origin Offset,
Droop, Sync Location, Maximum Absolute ADC level. Refer to the HP 83206A TIA/EIA

136 Cellular Adapter User’s Guide for descriptions of these measurements.

❑ Change the Dig Meas field from EVM 10 to Avg Power to display the

TX Power (Avg) measurement. This is the average RF power in Watts (W).

Don’t confuse the TX Power(Avg) [Watts] measurement you just selected with the
TX Power [dB] measurement that is displayed when measuring EVM.

Making Measurements

—The TX Power(Avg) [Watts] measurement indicates an absolute signal level; what

you typically would expect to measure with a power meter. This is the measurement
you would normally use to measure transmitter power.

—The TX Power [dB] measurement displayed while measuring EVM is relative to the

level of an external reference signal that you must provide. The main benefit to this
measurement is its ability to measure very low level signals. However, you must run
an internal calibration program and provide a TDMA signal of a known level to
calibrate the measurement before any power measurements can be made.

Refer to the HP 83206A TIA/EIA 136 Cellular Adapter User’s Guide, or the product note

Power Measurements using HP 8920B Solutions for AMPS, NAMPS, and TDMA Mobile
Phones (HP p/n 5966-2557E), for more information on power measurements.

Chapter 1 63

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TDMA Transmitter Measurements

Automated Test Flowchart

Enable the PCS Interface (if

Set System Type to DCCH.

Display the DIGITAL

MEASUREMENTS screen.

Set test set controls for mobile test

Wait for the last setting to be

completed before proceeding. This

makes sure the test set is ready to

make valid measurements when
the mobile is put into test mode.

Start

Reset the Test Set.

connected).

mode (as needed).

Put mobile in test mode.

Read measurement values.

Stop

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Example HP BASIC Program

10 ! This program shows how to make TDMA transmitter
20 ! quality measurements on a digital traffic channel.
30 ! with the mobile in test mode.
40 COM Ts

Making Measurements

50 Ts=714
60 CLEAR SCREEN
70 Initialize_ts
80 Enable_pcs
90 Init_dcch
100 Disp_dig_meas
110 Setup_tst_mode

120 DISP “Put the mobile in test mode, then press CONTINUE.”
130 PAUSE
140 Meas_tx_qual
150 DISP “Program Ended”
160 END
170 !
180 Initialize_ts: SUB Initialize_ts
190 ! Reset Test Set
200 COM Ts
210 CLEAR Ts ! Device clear to clean up any pending HP-IB

Making Measurements

220 OUTPUT Ts;”*RST;*OPC?” ! Good reset technique
230 ENTER Ts;Done
240 OUTPUT Ts;”TRIG:MODE:RETR REP”! Repetitive Trigger
250 SUBEND
260 !
270 Init_dcch: SUB Init_dcch
280 COM Ts
290 OUTPUT Ts;”DISP ACNT” ! Display analog Call Control screen.
300 OUTPUT Ts;”CPR:CSYS ‘DCCH’” ! Set System Type to DCCH.
310 SUBEND
320 !

Chapter 1 65

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TDMA Transmitter Measurements

330 Meas_tx_qual: SUB Meas_tx_qual
340 ! This routine measures a Digital Traffic Channel
350 ! for Droop, Frequency Error, Origin Offset, Magnitude
360 ! Error, Phase Error, and EVM.
370 COM Ts
380 ON TIMEOUT 7,10 GOTO Error_handler

390 OUTPUT Ts;”MEAS:RESet” !Reset measurement process in case
400 ! squelch interupt overflow occurs while putting mobile
410 ! in test mode.
420 OUTPUT Ts;”MEAS:DCCH:MTYPE ‘EVM 1’”
430 OUTPUT Ts;”TRIG:MODE:RETR SINGLE” ! Single Trigger
440 OUTPUT Ts;”TRIG” ! Trigger all measurements
450 OUTPUT Ts;”MEAS:DCCH:EVMM:DROOP?”
460 ENTER Ts;Droop
470 OUTPUT Ts;”MEAS:DCCH:EVMM:FERR?”
480 ENTER Ts;Freq_error
490 OUTPUT Ts;”MEAS:DCCH:EVMM:OOFF?”
500 ENTER Ts;Origin_offset
510 OUTPUT Ts;”MEAS:DCCH:EVMM:MERR?”
520 ENTER Ts;Mag_error
530 OUTPUT Ts;”MEAS:DCCH:EVMM:PERR?”
540 ENTER Ts;Phase_error
550 OUTPUT Ts;”MEAS:DCCH:EVMM:EVM?”
560 ENTER Ts;Evm1
570 OUTPUT Ts;”MEAS:RFRequency:POWer?”
580 ENTER Ts;Power
590 PRINT “Droop “,PROUND(Droop,−3),”dB”
600 PRINT “Freq Error “,PROUND(Freq_error,−3),”Hz”
610 PRINT “Origin Offset”,PROUND(Origin_offset,−3),”dB”
620 PRINT “Magnitude Error”,PROUND(Mag_error,−3),”%”
630 PRINT “Phase Error”,PROUND(Phase_error,−3),”deg”
640 PRINT “EVM 1 Burst”,PROUND(Evm1,−3),”%”
650 PRINT “Average Power”,PROUND(Power,−3),”Watts”
660 GOTO Exit_sub

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670 Error_handler: !

680 PRINT “Unable to read Tx Qualilty Measurement”
690 Exit_sub: !
700 OUTPUT Ts;”TRIG:MODE:RETR REP”! Repetitive Trigger
710 SUBEND
720 Enable_pcs: SUB Enable_pcs
730 COM Ts
740 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
750 SUBEND
760 Disp_dig_meas: SUB Disp_dig_meas
770 COM Ts
780 OUTPUT Ts;”DISP DME” !Display the DIGITAL MEASUREMENTS screen.
790 SUBEND
800 Setup_tst_mode: SUB Setup_tst_mode !Setup test mode conditions.

Making Measurements

810 COM Ts
820 INTEGER Settled
830 Slot_val=1 !Enter the Slot number to use for test mode setup.
840 ! The following default values may need to be changed to match the
850 ! mobile’s test mode settings. (Examples use default values)
860 OUTPUT Ts;”CALLP:DCCH:DTCH:TCHannel 2” !Set Traffic Chan number.
870 OUTPUT Ts;”CALLP:DCCH:DTCH:DVCCode 1” !Set value for DVCC field.
880 OUTPUT Ts;”CALLP:DCCH:DTCH:SLOT “;Slot_val !Set value for Slot

field.
890 LOOP
900 OUTPUT Ts;”CALLP:DCCH:DTCH:SLOT?” !Query the Slot value
910 ENTER Ts;Settled !to see if it has changed yet.
920 EXIT IF Settled=Slot_val !Exit loop if Slot command executed.
930 END LOOP
940 SUBEND

Chapter 1 67

Making Measurements

TDMA Receiver Sensitivity: BER & WER

TDMA Receiver Sensitivity: BER & WER

Description

Two tests measure the RF Sensitivity of the mobile receiver in digital mode: Bit Error Rate
(BER) and Word Error Rate (WER). In both measurements, the test set’s RF carrier is
modulated by a bit stream. The mobile demodulates the signal and loops the bits back to
the transmitter. The test set demodulates the mobile’s signal and compares the data sent
to the mobile with the data transmitted back from the mobile. Amplitude is set to a low
level and a high level (overload condition) for each measurement.

• For BER, a pseudo-random bit stream is used on a Digital Traffic Channel (DTC) with
the mobile in test mode. Bit error rate (BER) is calculated by taking the ratio of bit error
to total bits and converting to a percentage (<3% specified in standard).

The test set can be set to create a signal with a known BER to test Mobile Assisted
Hand Off (MAHO). This is done by setting the % BIT ERROR field (on the DCCH CALL
CONFIGURE screen) to the desired value after a call has been connected on a DTC.
MAHO must be measured with the mobile on an active traffic channel.

• For DCCH WER, data is sent in the Broadcast Control Channel (BCCH) information.
This measurement must be made with the mobile in test mode.

• For DTC WER, a pseudo-random bit stream is used on a DTC using SPEECH, SACCH,
or FACCH data words. This measurement must be made with the mobile in test mode.

This test corresponds to the IS-137, RF Sensitivity Test (2.3.2.1).

This test is similar to the Co-channel Performance test (2.3.2.6), where a second signal
source is used to test the receiver’s ability to receive a modulated signal in the presence of
a second signal on the same channel frequency (determined by measuring BER &WER).

Test Conditions

• Phone = Test Mode

• RF Amplitude = −110 dBm & −25 dBm(BER), −111 dBm & −25 dBm (WER).

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TDMA Receiver Sensitivity: BER & WER

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ Display the DIGITAL MEASUREMENTS screen. Note: Error messages warning you

about correlation and synchronization problems appear until your mobile is in test
mode and synchronized with the test set.

❑ Set the Traffic Chan field to match the channel number your mobile uses in test mode.
❑ If your mobile does not use (time)Slot 1 and DVCC 1 in test mode, change these fields as

needed on the test set.

❑ Put your mobile in its test mode.
❑ Change the Dig Meas field from EVM 1 to BER.
❑ Set the Amplitude to −110 dBm.
❑ Select Arm (under the Dig Meas field) to make the measurement.
❑ Read low level Loopback BER in %.
❑ Set the Amplitude to −25 dBm.
❑ Select Arm.
❑ Read high level Loopback BER in %.
❑ Change the Dig Meas field from BER to DTC WER.
❑ Select Arm.
❑ Read high level Loopback WER in %.

Making Measurements

❑ Select Arm.
❑ Set the Amplitude to −111 dBm.
❑ Read low level Loopback WER in %.

Chapter 1 69

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TDMA Receiver Sensitivity: BER & WER

Automated Test Flowchart

Enable the PCS Interface (if connected).

Set System Type to DCCH.

Display the DIGITAL MEASUREMENTS screen.

Set test set controls to match your mobile’s test

Put mobile in test mode.

Wait for the last setting to be completed before

proceeding. This makes sure the test set is ready to

make valid measurements when the measurement

Start

Reset the Test Set.

mode (as needed).

is armed.

Set Amplitude to −110 dBm.

Select and arm the BER measurement.

Read BER measurement values.

Set Amplitude to −25 dBm.

Arm the BER measurement.

Read BER measurement values.

Select and arm the WER measurement.

Read WER measurement values.

Set Amplitude to −25 dBm.

Arm the BER measurement.

Read WER measurement values.

Stop

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Example HP BASIC Program

10 ! This program shows how to make TDMA receiver
20 ! quality measurements on a digital traffic channel.
30 ! with the mobile in test mode.
40 COM Ts

Making Measurements

50 Ts=714
60 CLEAR SCREEN
70 Initialize_ts
80 Enable_pcs
90 Init_dcch
100 Disp_dig_meas
110 Setup_tst_mode

120 DISP “Put the mobile in test mode, then press CONTINUE.”
130 PAUSE
140 Ber_ampl_low
150 Meas_ber
160 Ampl_high
170 Meas_ber
180 Meas_wer
190 Wer_ampl_low
200 Meas_wer
210 DISP “Program Ended”

Making Measurements

220 END
230 !
240 Initialize_ts: SUB Initialize_ts
250 ! Reset Test Set
260 COM Ts
270 CLEAR Ts ! Device clear to clean up any pending HP-IB
280 OUTPUT Ts;”*RST;*OPC?” ! Good reset technique
290 ENTER Ts;Done
300 OUTPUT Ts;”TRIG:MODE:RETR REP”! Repetitive Trigger
310 SUBEND

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TDMA Receiver Sensitivity: BER & WER

320 Init_dcch: SUB Init_dcch
330 COM Ts

340 OUTPUT Ts;”DISP ACNT” ! Display analog Call Control screen.
350 OUTPUT Ts;”CPR:CSYS ‘DCCH’” ! Set System Type to DCCH.
360 SUBEND
370 Enable_pcs: SUB Enable_pcs
380 COM Ts
390 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
400 SUBEND
410 Disp_dig_meas: SUB Disp_dig_meas
420 COM Ts
430 OUTPUT Ts;”DISP DME” !Display the DIGITAL MEASUREMENTS screen.
440 SUBEND
450 Setup_tst_mode: SUB Setup_tst_mode !Setup test mode conditions.
460 COM Ts
470 INTEGER Settled
471 Slot_val=1 !Enter the Slot value to use for test mode setup.
480 ! The following default values may need to be changed to match the
490 ! mobile’s test mode settings.
500 OUTPUT Ts;”CALLP:DCCH:DTCH:TCHannel 2” !Set Traffic Chan number.
510 OUTPUT Ts;”CALLP:DCCH:DTCH:DVCCode 1” !Set value for DVCC field.
520 OUTPUT Ts;”CALLP:DCCH:DTCH:SLOT “;Slot_val !Set value for Slot field
540 LOOP
550 OUTPUT Ts;”CALLP:DCCH:DTCH:SLOT?” !Query the slot value to
560 ENTER Ts;Settled !see if the last command has executed yet.
570 EXIT IF Settled=Slot_val !Exit loop if Slot command executed.
580 END LOOP
590 SUBEND
600 Ampl_high: SUB Ampl_high
610 COM Ts
620 OUTPUT Ts;”RFG:AMPL −25 dbm” !Set test set carrier amplitude.
630 SUBEND
640 Ber_ampl_low: SUB Ber_ampl_low
650 COM Ts
660 OUTPUT Ts;”RFG:AMPL −110 dBm” !Set BER low amplitude.
670 SUBEND

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680 Wer_ampl_low: SUB Wer_ampl_low
690 COM Ts

700 OUTPUT Ts;”RFG:AMPL −111 dBm” !Set WER low amplitude.
710 SUBEND
720 Meas_ber: SUB Meas_ber
730 COM Ts
740 ON TIMEOUT 7,10 CALL Failed
750 OUTPUT Ts;”CALLP:DCCH:DMTYpe ‘BER’” !Select BER measurement.
760 OUTPUT Ts;”MEAS:DCCH:BER:ARM” !Arm the BER measurement.
770 OUTPUT Ts;”MEAS:DCCH:BER:VALue?” !Query the BER.
780 ENTER Ts;Ber_meas
790 OUTPUT Ts;”RFG:AMPL?” !Query the Amplitude setting.
800 ENTER Ts;Amplitude
810 PRINT “BER at “;Amplitude;” dBm = “;PROUND(Ber_meas,−3);”%”

Making Measurements

820 SUBEND
830 Meas_wer: SUB Meas_wer
840 COM Ts
850 ON TIMEOUT 7,10 CALL Failed
860 OUTPUT Ts;”CALLP:DCCH:DMTYpe ‘DTC WER’” !Select DTC WER measurement.
870 OUTPUT Ts;”MEAS:DCCH:WER:ARM” !Arm the WER measurement.
880 OUTPUT Ts;”MEAS:DCCH:WER:VALue?” !Query the WER.
890 ENTER Ts;Wer_meas
900 OUTPUT Ts;”RFG:AMPL?” !Query the Amplitude setting.
910 ENTER Ts;Amplitude
920 PRINT “WER at “;Amplitude;” dBm = “;PROUND(Wer_meas,−3);”%”
930 SUBEND
940 Failed: SUB Failed
950 COM Ts
960 CLEAR 7
970 PRINT “MEASUREMENT FAILED. A valid measurement is not displayed.”
980 STOP
990 SUBEND

Chapter 1 73

Making Measurements

TDMA Receiver RSSI

TDMA Receiver RSSI

Description

The mobile is presented with various RF carrier levels. It measures the signal level and
reports RSSI (Received Signal Strength Indicator) to the Test Set. There is no
corresponding IS-137 test.

When displaying RSSI for the current channel, the test set also displays the channel’s
MAHO Bit Error Rate (BER) and the RSSI for any neighbor channels specified on the
DCCH CALL CONFIGURE screen’s # Neighbors field.

NOTE

After the RF carrier level is changed, it can take a few seconds for the
mobile’s power measurement to settle before reporting the final RSSI
measurement to the test set. Measurements viewed before the settling period
is over may not be accurate.

Test Conditions

• Phone = Connect Mode

•System Type = DCCH

• Traffic Channel = DTC

• RF Amplitude: From −51 dBm to −111 dBm in 6 dB steps.

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TDMA Receiver RSSI

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ For PCS mobiles:

❑ Set the MS Capab field (DCCH CALL CONFIGURE II) screen to US PCS.
❑ Set the Voc: field (CALL CONTROL screen) to match the mobile’s vocoder (typically

ACELP).

❑ Set the Cntrl Chan number to a control channel your mobile will camp on.
❑ In the Traffic Chan Assignment area, set the Chan to 777 if your mobile will not work

at the default traffic channel assignment (channel 2).

❑ Power on the mobile and wait until it indicates service.
❑ Dial a number on the mobile and press

SEND (originate a call).

❑ The mobile should connect, shown by the lit Connect indicator on the test set.
❑ Change the Display field from Data to Meas.
❑ Change the Display setting from EVM1 to MAHO.
❑ Read the RSSI-Curr Chan dBm value.
❏ Change the Amplitude to −51 dBm and read the RSSI value.
❏ Decrease the Amplitude in 6 dB steps until the level is down to −111 dBm, reading the

RSSI value at each amplitude change.

Making Measurements

Chapter 1 75

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TDMA Receiver RSSI

Automated Test Flowchart

Enable the PCS Interface (if connected).

Set System Type to DCCH.

Set the Cntrl Chan number as needed by your

mobile to camp on a control channel.

Change the traffic channel assignment (if needed).

Set Amplitude to −51 dBm.

Start

Reset the Test Set.

Turn on the mobile and wait for it to obtain service.

Dial a number on the mobile and press SEND.

Look for the Connect indicator to be lit.

Change the measurement type to MAHO.

Read RSSI measurement value.

Reduce the Amplitude by 6 dB and read the RSSI

again. Repeat this step until the Amplitude is

reduced to −111 dBm.

Stop

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Example HP BASIC Program

10 ! This uses the built-in digital call processing to measure RSSI.
20 ! This program implements Active and Origination.

30 ! Monitors the ‘Connect’ LED to determine if page is successful.
40 ! Monitors ESR to trap errors during the origination.
50 COM /Settings/Ts,Amplitude
60 CLEAR SCREEN
70 Ts=714
80 Amplitude=−51
90 CALL Reset_ts
100 CALL Enable_pcs
110 CALL Setup_dcch
120 CALL Set_to_active
130 CALL Setup_trafchan
140 CALL Originate
150 Setup_rssi
160 Meas_rssi
170 END
180 Set_to_active: SUB Set_to_active
190 COM /Settings/Ts,Amplitude
200 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
210 OUTPUT Ts;”*CLS”! Clear Status Event Registers

Making Measurements

220 OUTPUT Ts;”CALLP:ACTIVE”
230 REPEAT
240 OUTPUT Ts;”STAT:CALLP:EVENT?”
250 ENTER Ts;Register
260 WAIT .2 ! Gives the testset time to service other processes
270 UNTIL Register ! Returns 0 until one of the bits is set
280 SUBEND
290 Reset_ts: SUB Reset_ts
300 COM /Settings/Ts,Amplitude
310 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
320 ENTER Ts;Done
330 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
340 SUBEND

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TDMA Receiver RSSI

350 !
360 Originate: SUB Originate
370 COM /Settings/Ts,Amplitude

380 PRINT “Instructions: Turn the phone on now”
390 PRINT “When the phone shows service, dial a number and press SEND”
400 OUTPUT Ts;”STAT:CALLP:PTR 32” ! Latch “Connect” LED
410 OUTPUT Ts;”STAT:CALLP:NTR 0” ! Ignore All Negative Transitions
420 OUTPUT Ts;”*CLS”! Clear Status Event Registers
430 REPEAT
440 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
450 ENTER Ts;Esr,Register
460 IF Esr<>0 THEN
470 PRINT “Error during origination”
480 STOP
490 END IF
500 WAIT .2 ! Gives the testset time to service other processes
510 UNTIL Register ! Returns 0 until one of the bits is set
520 PRINT “Origination Successful!”
530 SUBEND
540 Enable_pcs: SUB Enable_pcs
550 COM /Settings/Ts,Amplitude
560 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
570 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”
580 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’”
590 SUBEND
600 Setup_dcch: SUB Setup_dcch
610 COM /Settings/Ts,Amplitude
620 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !Set the System Type to DCCH.
630 OUTPUT Ts;”CALLP:DCCH:CCH 1012” !Change Cntrl Chan number as needed.
640 SUBEND
650 Setup_trafchan: SUB Setup_trafchan !Setup DTC channel 777.
660 COM /Settings/Ts,Amplitude
670 OUTPUT Ts;”CALLP:DCCH:DTCH:TCHannel 777” !DTC number.
680 SUBEND

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TDMA Receiver RSSI

690 Setup_rssi: SUB Setup_rssi
700 COM /Settings/Ts,Amplitude

710 OUTPUT Ts;”CALLP:DCCH:DMODe ‘Meas’” !Select Measurements display.
720 OUTPUT Ts;”CALLP:DCCH:MTYPe ‘MAHO’” !Select the MAHO measurement.
730 SUBEND
740 Meas_rssi: SUB Meas_rssi
750 COM /Settings/Ts,Amplitude
760 LOOP
770 OUTPUT Ts;”CALLP:DCCH:AMPLitude “;VAL$(Amplitude)
780 WAIT 3 !Wait for RSSI measurement to settle in the mobile.
790 OUTPUT Ts;”MEAS:DCCH:MAHandoff:CRSStrength?”
800 ENTER Ts;Rssi_val
810 PRINT “RSSI at “;Amplitude;” dBm =”;Rssi_val
820 Amplitude=Amplitude−6

Making Measurements

830 EXIT IF Amplitude=−117
840 END LOOP
850 PRINT “Measurements Completed.”
860 SUBEND

Chapter 1 79

Making Measurements

Testing Message Waiting Indicator Operation

Testing Message Waiting Indicator Operation

Description

Message Waiting Indicator (MWI) alerts the mobile that Voice, Short Message Service, or
Fax messages are waiting for attention. When the test set sends the message, it reports
whether the mobile sent the correct response. The mobile alerts the user that a message
(or messages) is waiting. Messages can be sent on a DTC (in the connect mode) or on a

DCCH with the mobile having found service (“camped”).

Test Conditions

•System Type = DCCH

• Control Channel = Digital, Channel number as needed by your mobile.

• Phone = Camping on the DCCH (not connected).

• RF Amplitude = −50 dBm

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Making Measurements

Testing Message Waiting Indicator Operation

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ Set the Cntrl Chan number to a digital control channel (DCCH) your mobile will camp

on.

❑ Set the Num Voice field on the DCCH CALL CONFIGURE II screen to 1. When the

MWI command is sent, the phone is told that 1 voice message is waiting.

❑ Return to the CALL CONTROL screen.
❑ Power on the mobile and wait until it indicates service.
❑ Select Register to register the mobile and automatically enter its phone number into the

MS ID field.

❑ Select the Cntl Order field and choose Send MWI. This is the default setting, but it must

be re-selected to send the command.

❑ The mobile should respond to indicate that a voice message is waiting.
❑ If the mobile correctly processed the command, the test set very briefly displays “MWI

Acknowledged Correctly”, and then displays the phone number of the mobile. If the
process failed, the message “MWI Failed: Acknowledgment not received” is displayed.

Making Measurements

Chapter 1 81

Making Measurements

Testing Message Waiting Indicator Operation

Automated Test Flowchart

Enable the PCS Interface (if connected).

Set System Type to DCCH.

Set the Cntrl Chan number as needed by your

mobile to camp on a control channel.

Set the Num Voice field on the DCCH CALL

CONFIGURE II screen to 1.

Start

Reset the Test Set.

Turn on the mobile and wait for it to obtain service.

Register the mobile.

Send the Message Waiting Information command.

Verify the response to the message on the mobile.

Query the status message on the test set to verify

proper mobile response.

Stop

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Testing Message Waiting Indicator Operation

Example HP BASIC Program

10 ! This program implements Analog Registration.

20 ! Monitors the ‘Register’ LED to determine when
30 ! registration is complete. Configures the Message Waiting
40 ! Information command, sends the MWI command, monitors the

Making Measurements

50 ! Active LED to see when the call processing state goes from
60 ! Active to Access (when MWI command is issued) and returns to
70 ! Active before querying to see if the mobile responded correctly.
80 ON TIMEOUT 7,8 CALL Escape !Recover from bus hangup.
90 COM Ts
100 CLEAR SCREEN
110 Ts=714
120 Reset_ts
130 Enable_pcs
140 Setup_dtc
150 Set_to_active
160 PRINT “Instructions: Turn the phone on now.”
170 Register_mobile
180 WAIT 3 !Wait for mobile to stabilize before issuing MWI command.
190 Setup_mwi
200 Send_mwi
210 Test_response

Making Measurements

220 END
230 Set_to_active: SUB Set_to_active
240 COM Ts
250 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
260 OUTPUT Ts;”*CLS”! Clear Status Event Registers
270 OUTPUT Ts;”CALLP:ACTIVE”
280 REPEAT
290 OUTPUT Ts;”STAT:CALLP:EVENT?”
300 ENTER Ts;Register
310 WAIT .2 ! Gives the testset time to service other processes
320 UNTIL Register ! Returns 0 until one of the bits is set
330 SUBEND

Chapter 1 83

Making Measurements

Testing Message Waiting Indicator Operation

340 Reset_ts: SUB Reset_ts
350 COM Ts

360 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
370 ENTER Ts;Done
380 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
390 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” ! Select the TIA/EIA 136 standard.
400 SUBEND
410 Register_mobile: SUB Register_mobile
420 COM Ts
430 OUTPUT Ts;”STAT:CALLP:PTR 0”! Don’t latch positive transitions
440 OUTPUT Ts;”STAT:CALLP:NTR 2”! Latch “Register” LED turning off
450 OUTPUT Ts;”*CLS”! Clear Status Event Registers
460 OUTPUT Ts;”CALLP:REGISTER”
470 REPEAT
480 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
490 ENTER Ts;Esr,Register
500 WAIT .2 ! Gives the testset time to service other processes
510 UNTIL Register OR Esr ! Returns 0 until one of the bits is set
520 IF Esr THEN
530 PRINT “Error with Registration”
540 STOP
550 ELSE
560 PRINT “Mobile Registration Successful!”
570 END IF
580 SUBEND
590 Enable_pcs: SUB Enable_pcs
600 COM Ts
610 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
620 SUBEND
630 Escape: SUB Escape
640 COM Ts
650 CLEAR 7
660 LOCAL Ts
670 PRINT “Query Error or other bus problem occurred.”
680 STOP
690 SUBEND

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Making Measurements

Testing Message Waiting Indicator Operation

700 Setup_dtc: SUB Setup_dtc !Setup an digital control channel.
710 COM Ts

720 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !System Type
730 OUTPUT Ts;”CALLP:DCCH:CCH 1012” !Set Cntrl Chan number as needed.
740 SUBEND
750 Setup_mwi: SUB Setup_mwi
760 COM Ts
770 OUTPUT Ts;”CALLP:DCCH:MWI:NVO 1” !Set Num Voice field to 1.
780 SUBEND
790 Send_mwi: SUB Send_mwi
800 COM Ts
810 WAIT 3
820 OUTPUT Ts;”CALLP:DCCH:CORD ‘Send MWI’” !Send MWI command to mobile.
830 SUBEND

Making Measurements

840 Test_response: SUB Test_response
850 COM Ts
860 DIM Response_1$[256]
870 OUTPUT Ts;”STAT:CALLP:PTR 1” !Enable pos-going transistion register
880 OUTPUT Ts;”STAT:CALLP:NTR 0” !for the Active indicator to tell when
890 OUTPUT Ts;”*CLS” !the test set has gone from Active, to Access, and
900 REPEAT !back to Active, before reading the result.
910 OUTPUT Ts;”STAT:CALLP:EVENt?”
920 ENTER Ts;Active_again
930 UNTIL Active_again<>0
940 OUTPUT Ts;”CALLP:DCCH:RCDD1?” !Query the mobile’s response.
950 ENTER Ts;Response_1$
960 IF Response_1$=”””MWI FAILED:””” THEN
970 PRINT “Message Waiting FAILED! No mobile acknowledgement.”
980 ELSE
990 PRINT “Message Waiting Indicator WORKED! Mobile acknowledged.”
1000 END IF
1010 SUBEND

Chapter 1 85

Making Measurements

Testing Short Message Service Operation

Testing Short Message Service Operation

Description

Short Message Service is used to send short text messages to a mobile (similar to a pager).
When the test set sends the message, it reports whether the mobile sent the correct
response. The mobile alerts the user that a message (or messages) is waiting. Messages
can be sent on a DTC (in the connect mode) or on a DCCH with the mobile having found

service (“camped”).

Test Conditions

•System Type = DCCH

• Control Channel = Digital, Channel number as needed by your mobile.

• Phone = Camping on the DCCH (not connected).

• RF Amplitude = −50 dBm

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Making Measurements

Testing Short Message Service Operation

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ Set the Cntrl Chan number to a digital control channel (DCCH) your mobile will camp

on.

❑ Go to the DCCH CALL CONFIGURE screen, and select the SMS Contents field. Enter

several characters to send to the mobile.

❑ Return to the CALL CONTROL screen.
❑ Power on the mobile and wait until it indicates service.
❑ Select Register to register the mobile and automatically enter its phone number into the

MS ID field.

❑ Set the Cntl Order field to Send SMS.
❑ The mobile should respond to indicate that an SMS message is waiting.
❑ If the mobile correctly processed the command, the test set displays “SMS

Acknowledged Correctly: MS Indicates RDATA Accepted”, and then displays the phone
number of the mobile. If the process failed, the message “SMS Failed: Acknowledgment

not received” is displayed.

Making Measurements

Chapter 1 87

Making Measurements

Testing Short Message Service Operation

Automated Test Flowchart

Enable the PCS Interface (if connected).

Set System Type to DCCH.

Set the Cntrl Chan number as needed by your

mobile to camp on a DCCH.

Enter a message in the SMS Contents field on the

DCCH CALL CONFIGURE screen.

Start

Reset the Test Set.

Turn on the mobile and wait for it to obtain service.

Register the mobile.

Send the Short Message Service command.

Verify the response to the message on the mobile.

Query the status message on the test set to verify

proper mobile response.

Stop

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Testing Short Message Service Operation

Example HP BASIC Program

10 ! This program implements Analog Registration.

20 ! Monitors the ‘Register’ LED to determine when
30 ! registration is complete. Configures the Message Waiting
40 ! Information command, sends the MWI command, monitors the

Making Measurements

50 ! Active LED to see when the call processing state goes from
60 ! Active to Access (when MWI command is issued) and returns to
70 ! Active before querying to see if the mobile responded correctly.
80 ON TIMEOUT 7,8 CALL Escape !Recover from bus hangup.
90 COM Ts
100 CLEAR SCREEN
110 Ts=714
120 Reset_ts
130 Enable_pcs
140 Setup_dtc
150 Set_to_active
160 PRINT “Instructions: Turn the phone on now.”
170 Register_mobile
180 WAIT 3 !Wait for mobile to stabilize before issuing MWI command.
190 Setup_sms
200 Send_sms
210 Test_response

Making Measurements

220 END
230 Set_to_active: SUB Set_to_active
240 COM Ts
250 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
260 OUTPUT Ts;”*CLS”! Clear Status Event Registers
270 OUTPUT Ts;”CALLP:ACTIVE”
280 REPEAT
290 OUTPUT Ts;”STAT:CALLP:EVENT?”
300 ENTER Ts;Register
310 WAIT .2 ! Gives the testset time to service other processes
320 UNTIL Register ! Returns 0 until one of the bits is set
330 SUBEND
340 Reset_ts: SUB Reset_ts

Chapter 1 89

Making Measurements

Testing Short Message Service Operation

350 COM Ts

360 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
370 ENTER Ts;Done
380 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
390 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” ! Select the TIA/EIA 136 standard.
400 SUBEND
410 Register_mobile: SUB Register_mobile
420 COM Ts
430 OUTPUT Ts;”STAT:CALLP:PTR 0”! Don’t latch positive transitions
440 OUTPUT Ts;”STAT:CALLP:NTR 2”! Latch “Register” LED turning off
450 OUTPUT Ts;”*CLS”! Clear Status Event Registers
460 OUTPUT Ts;”CALLP:REGISTER”
470 REPEAT
480 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
490 ENTER Ts;Esr,Register
500 WAIT .2 ! Gives the testset time to service other processes
510 UNTIL Register OR Esr ! Returns 0 until one of the bits is set
520 IF Esr THEN
530 PRINT “Error with Registration”
540 STOP
550 ELSE
560 PRINT “Mobile Registration Successful!”
570 END IF
580 SUBEND
590 Enable_pcs: SUB Enable_pcs
600 COM Ts
610 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
620 SUBEND
630 Escape: SUB Escape
640 COM Ts
650 CLEAR 7
660 LOCAL Ts
670 PRINT “Query Error or other bus problem occurred.”
680 STOP
690 SUBEND
700 Setup_dtc: SUB Setup_dtc !Setup an digital control channel.

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Making Measurements

Testing Short Message Service Operation

710 COM Ts

720 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !System Type
730 OUTPUT Ts;”CALLP:DCCH:CCH 1012” !Set Cntrl Chan number as needed.
740 SUBEND
750 Setup_sms: SUB Setup_sms
760 COM Ts
770 OUTPUT Ts;”CALLP:DCCH:SMS:CONT ‘NewCo ISP has been announced!’”
780 SUBEND
790 Send_sms: SUB Send_sms
800 COM Ts
810 WAIT 3
820 OUTPUT Ts;”CALLP:DCCH:CORD ‘Send SMS’” !Send MWI command to mobile.
830 SUBEND
840 Test_response: SUB Test_response

Making Measurements

850 COM Ts
860 DIM Response_1$[256]
870 OUTPUT Ts;”STAT:CALLP:PTR 1” !Enable pos-going transistion register
880 OUTPUT Ts;”STAT:CALLP:NTR 0” !for the Active indicator to tell when
890 OUTPUT Ts;”*CLS” !the test set has gone from Active, to Access, and
900 REPEAT !back to Active, before reading the result.
910 OUTPUT Ts;”STAT:CALLP:EVENt?”
920 ENTER Ts;Active_again
930 UNTIL Active_again<>0
940 OUTPUT Ts;”CALLP:DCCH:RCDD1?” !Query the mobile’s response.
950 ENTER Ts;Response_1$
960 PRINT Response_1$
970 SUBEND

Chapter 1 91

Making Measurements

Caller ID

Caller ID

Description

Caller ID sends caller information to the mobile when paged. Depending on the mobile’s
caller ID abilities, the data displayed can be the name and phone number of the calling
person.

Test Conditions

•System Type = DCCH

• Control Channel = Digital, Channel number as needed by your mobile for service.

• Traffic Channel Assignment = DTC, 777.

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Making Measurements

Caller ID

Manual Operation

❑ Press PRESET.
❑ If a PCS Interface is used, set the PCS Mode field on the CONFIGURE screen to On.
❑ Display the CALL CONTROL screen.
❑ Set the System Type to DCCH.
❑ For PCS mobiles:

❑ Set the MS Capab field (DCCH CALL CONFIGURE II) screen to US PCS.
❑ Set the Voc: field (CALL CONTROL screen) to match the mobile’s vocoder (typically

ACELP).

❑ In the Traffic Chan Assignment area, set the Chan to 777.
❑ Display the DCCH CALL CONFIGURE II screen.

❑ Enter the phone number of the calling party in the Calling Num field.
❑ Enter a name in the Calling Name field.
❑ In the Name Size field, enter the number of characters from the Calling Name field

to send to the mobile.

❑ Display the CALL CONTROL screen.
❑ Power on the mobile and wait until it indicates service.
❑ Enter the mobile’s MIN or phone number in the MS Id field, OR select the Register

field and wait for the mobile to register and automatically enter the phone number.

❑ Select the Page field.
❑ The mobile should connect and the caller ID information should be displayed on the

mobile.

Making Measurements

Chapter 1 93

Making Measurements

Caller ID

Automated Test Flow Chart

Reset the Test Set.

Enable the PCS Interface (if connected).

Set System Type to DCCH.

Set the Cntrl Chan number as needed by your

mobile to camp on a DTC.

Enter a channel number in the Traffic Chan

Assignment area for the DTC to use when paging.

Start

Enter the Caller ID information on the DCCH

CALL CONFIGURE II screen to be sent.

Turn on the mobile and wait for it to obtain service.

Register the mobile.

Page the mobile.

Verify the caller ID response on the mobile.

Stop

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Example HP BASIC Program

10 ! This program implements AMPS Registration and Page

20 ! Monitors the ‘Register’ LED and ‘Connect’ LED
30 ! to determine when successful.
40 ! Includes error checking with ESR register.

Making Measurements

Caller ID

50 ! Enters caller ID information to send when paging.
60 COM Ts
70 CLEAR SCREEN
80 Ts=714
90 Reset_ts
100 Enable_pcs
110 Setup_dcch
120 Set_to_active
130 Setup_trafchan
140 PRINT “Instructions: Turn the phone on now”
150 Register_mobile
160 Page_with_id
170 END
180 Set_to_active: SUB Set_to_active
190 COM Ts
200 OUTPUT Ts;”STAT:CALLP:PTR 1”! Arm Bit 0 of the PTR register
210 OUTPUT Ts;”*CLS”! Clear Status Event Registers

Making Measurements

220 OUTPUT Ts;”CALLP:ACTIVE”
230 REPEAT
240 OUTPUT Ts;”STAT:CALLP:EVENT?”
250 ENTER Ts;Register
260 WAIT .2 ! Gives the testset time to service other processes
270 UNTIL Register ! Returns 0 until one of the bits is set
280 SUBEND
290 Reset_ts: SUB Reset_ts
300 COM Ts
310 OUTPUT Ts;”*RST;*OPC?”! Good reset technique
320 ENTER Ts;Done
330 OUTPUT Ts;”DISP ACNT”! Analog Call Control Screen
340 SUBEND

Chapter 1 95

Making Measurements

Caller ID

350 Register_mobile: SUB Register_mobile
360 COM Ts

370 OUTPUT Ts;”STAT:CALLP:PTR 0”! Don’t latch positive transitions
380 OUTPUT Ts;”STAT:CALLP:NTR 2”! Latch “Register” LED turning off
390 OUTPUT Ts;”*CLS”! Clear Status Event Registers
400 WAIT 5
410 OUTPUT Ts;”CALLP:REGISTER”
420 REPEAT
430 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
440 ENTER Ts;Esr,Register
450 WAIT .2 ! Gives the testset time to service other processes
460 UNTIL Register OR Esr ! Returns 0 until one of the bits is set
470 IF Esr THEN
480 PRINT “Error with Registration”
490 STOP
500 ELSE
510 OUTPUT Ts;”CALLP:PNUM?”
520 ENTER Ts;Phone_num$
530 PRINT “Registration Successful!”
540 PRINT “Phone number is “;Phone_num$
550 END IF
560 SUBEND
570 Page_with_id: SUB Page_with_id
580 COM Ts
590 PRINT “When the phone rings, press the SEND key.”
600 OUTPUT Ts;”STAT:CALLP:PTR 32” ! Latch ‘Connect’ LED
610 OUTPUT Ts;”STAT:CALLP:NTR 0”
620 OUTPUT Ts;”*CLS”! Clear Status Event Registers
630 OUTPUT Ts;”CALLP:DCCH:CID:CNUM ‘5099224001’” !Calling Number
640 OUTPUT Ts;”CALLP:DCCH:CID:CNAM ‘R. Heinlein’” !Calling Name
650 OUTPUT Ts;”CALLP:DCCH:CID:NSIZ 11” !Name Size
660 WAIT 5
670 OUTPUT Ts;”CALLP:PAGE”
680 REPEAT
690 OUTPUT Ts;”*ESR?;:STAT:CALLP:EVENT?”
700 ENTER Ts;Esr,Register

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Making Measurements

710 WAIT .2 ! Gives the testset time to service other processes
720 UNTIL Register OR Esr ! Returns 0 until one of the bits is set
730 IF Esr THEN

740 PRINT “Error with Page”
750 STOP
760 END IF
761 PRINT ““
770 PRINT “Page was Successful! Verify that the mobile shows”
771 PRINT “the correct Caller ID information.”
780 SUBEND
790 Enable_pcs: SUB Enable_pcs
800 COM Ts
810 OUTPUT Ts;”CALLP:DCCH:PCS:MODE ‘ON’”
820 OUTPUT Ts;”CALLP:DCCH:VOC ‘ACELP’”

Caller ID

Making Measurements

830 OUTPUT Ts;”CALLP:DCCH:MSCapability:BAND ‘US PCS’”
840 SUBEND
850 Setup_dcch: SUB Setup_dcch
860 COM Ts
870 OUTPUT Ts;”CALLP:CSYS ‘DCCH’” !Set System Type to DCCH.
880 OUTPUT Ts;”CALLP:DCCH:CCH 1012” !Change Cntrl Chan number as needed.
890 SUBEND
900 Setup_trafchan: SUB Setup_trafchan
910 COM Ts
920 OUTPUT Ts;”CALLP:DCCH:DTCH:TCHannel 777”
930 SUBEND

Chapter 1 97

Making Measurements

Caller ID

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2 HP 8920B Programming Concepts

HP 8920B Programming

Concepts

This chapter contains general information on writing programs for the HP 8920B. Detailed
programming information is in the HP 8920B Programmer’s Guide (p/n 08920-90222).

99

HP 8920B Programming Concepts

Basic Input and Output Operations

Basic Input and Output Operations

Overview

Sometimes the most difficult part of controlling the test set is just getting started with
your first measurement. Before attempting to automate a measurement, it is generally
recommended to first perform the set up and make measurements manually, then
duplicate the manual procedure with HP-IB command strings and programming
algorithms.

There are two fundamental processes for communicating with the HP 8920B over the
HP-IB bus. The first process is sending data (like commands) to the instrument. In HP
BASIC, the command to send data to the instrument is the OUTPUT statement. The
second process for communicating with the HP 8920B is reading data back from the
instrument. In HP BASIC, the command to read data from the instrument is the ENTER

statement.

Using the OUTPUT Statement to Send Commands

This two line program example sends a command to the HP 8920B:

10 OUTPUT 714;”*RST”
20 END

• Line 10 sends a command to the instrument at address 714. The command is "*RST"
which instructs the instrument to reset.

•Line 20 is the END statement, which is always required in any HP BASIC program. This
line has no effect on the instrument.

General Process for Changing Settings

To perform the initial setup for changing settings on the HP 8920B, the general process is:

1. Use the OUTPUT statement to display the correct screen.

2. Use the OUTPUT statement for changing the settings on that screen.

For example:

10 OUTPUT 714;”DISP RFG”
20 OUTPUT 714;”RFG:FREQ 825 MHZ”
30 END

• Line 10 displays the RF Generator Screen.

• Line 20 sets the RF Generator frequency to 825 MHz.

This process is repeated until all necessary settings are changed.

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