TEL T-48 Mode d'emploi

T-48/T-48A

MOD 3

50-400 HZ, SINGLE PHASE

120/220 VAC, 25 WATTS

120 VAC- 0.25 FTT, 220 VAC-0.125 FTT

T-48

MODE S/ATCRBS

TRANSPONDER RAMP

TEST SET

TEL-INSTRUMENT ELEC. CORP

TYPE WATTS

PART NO.

SERIAL NO.

INPUT 115/230 VAC 50-400HZ

CAGE CODE 92606 USA

MOD 1 2 3 4 5 6

TEST

INTERROGATE

ACCESSORIES

REPEAT

OFF

STORE

ANTENNA

LIGHTS

OFF

Transponder Test Set

Operating and Maintenance Manual

P/N-90000026

REVISION

Tel-Instrument Electronics Corp

728 Garden Street

Carlstadt, NJ 07072

(201) 933-1600

www.telinst.com

Leading the AVIONICS TEST industry into the 21st Century!

A B C D E F G H I J K L M

N O P Q R S T U V W X Y Z

FOREWORD

This manual provides and explains information pertinent to the operation, use and maintenance

of the Tel Instrument T-48/T-48A MOD 3 Test Set. Because aircraft systems vary dependent on

the type of aircraft, this manual is intended as a guideline. If further clarification or additional

information is necessary, please contact:

Tel Instrument Corp

Customer Support Division

728 Garden Street

Carlstadt, NJ 07072

(201) 933-1600

[email protected]

Tel Instrument Corp welcomes your input and/or comments concerning this publication. Every

effort has been made to ensure accuracy, but errors may occur. If you find an error or would like

to report a specific problem, please write the information down. Be as through as possible by

including the page/figure/table number and send the information to:

Tel Instrument Electronics Corp

Attention Technical Publications

We will make every effort to resolve the issue in a timely and professional fashion.

This manual will be revised occasionally when changes to the Test Set or its operation are

incorporated. If you feel you do not have the most current version of the manual, contact us with

the Test Set Model number, software version and current Rev Status of your manual. Every effort

will be made ensure you have the most up to date information that corresponds with your

equipment.

America. Except as permitted under the United States

reproduced or distributed in any form or by any means,

or stored in a database or retrieval system, without

written permission of Tel Instrument Corp. (2002)

Revision A T-48 90 008 026

T-48 MOD 3TABLE OF CHANGES

Date REV ECO Page Description

7-26-2002 A Initial Release

Revision A T-48 90 008 026

Table of Contents

Chapter Page

Table of Changes……………………………………………………………………………… i

List of Illustrations…………………………………………………….……………………….vi

List of Tables……………………………………………………….…………………………. vii

I Introduction

Section A- General Information

1.1 Scope of Manual……………………………………………………………………...1-1

1.2 Purpose and Function of the Equipment……..……………………………………… 1-1

1.3 Regulatory Responsibilities…………………………………………..........................1-2

1.4 Warranty……………………………………………………………………………...1-2

1.5 Safety Considerations………………………………………………………………...1-3

Section B- Equipment Description

1.6 Specifications………………………………………………………………………... 1-4

1.7 Abbreviations, Acronyms, and Glossary of Terms………………….......................... 1-5

II Preparation for Use and Operation

Section A- General Information

2.1 General………………………………………………………………......................... 2-1

2.2 Unpacking…………………………………………………………………………… 2-1

2.3 Installation……………………………………………………………………………2-1

2.4 Accessories…………………………………………………………………………...2-1

Section B- Operating Controls, Indicators, and Connectors

2.5 General………………………………………………………………......................... 2-3

2.6 Controls, Indicators, and Connectors………………………………………………... 2-3

Revision A T-48 90 008 026

iii

Table of Contents (continued)

Chapter Page

Section C- Operating Instructions

2.7 General………………………………………………………………......................... 2-5

2.8 Battery Operation……………………………………………………………………. 2-5

2.8.1 220 VAC Operation…………………………………………………………...2-5

2.9 Supplied Antennas…………………………………………………............................2-6

2.9.1 Omni-Directional Antenna……………………………………........................ 2-6

2.9.2 Antenna Coupler (TAP-135)…………………………………………………. 2-7

2.9.3 Direct Connect Coupler (TAP-141)………………………………………….. 2-8

2.10 Initial Start-up Procedure……………………………………………......................... 2-9

2.11 Transponder Test Sequence…………………………………………......................... 2-9

2.11.1 Mode 3A/C Automatic Sequence of Transponder Tests……………………...2-11

2.11.2 Mode 3A/C Manual Sequence of Transponder Tests…………....................... 2-12

2.11.3 Mode S Automatic Sequence of Transponder Tests…………………………. 2-13

2.11.4 Mode S Manual Sequence of Tests……………………………....................... 2-14

2.12 Pulse Width and Spacing Measurements……………………………………………. 2-20

2.12.1 Pulse Width, Spacing, and Data Pulse Test Example………………………....2-21

III Principles of Operation

3.1 RF Transmitter………………………………………………………………............. 3-1

3.2 RF Receiver.………………………………………………………….........................3-1

3.3 Power, Frequency and Sensitivity Measurements.…………………………………...3-1

3.4 Diversity……………………………………………………………………………... 3-2

3.5 Microprocessor (Digital PCB)………………………………………………………. 3-2

3.6 Battery Charger and Power Supply………………………………………………….. 3-2

IV General Maintenance and Servicing Instructions

4.1 General……………………………………………………………………….……… 4-1

Revision A T-48 90 008 026

Table of Contents (continued)

Chapter Page

Section A- Routine Maintenance

4.2 General………………………………………………………………………………. 4-2

4.2.1 Cleaning Procedure…………………………………………………………... 4-2

4.2.2 Inspection of Connectors, Cables and Test Assembly……………………….. 4-2

4.2.3 Battery Check and Charging…………………………………………………. 4-3

Section B- Test Set Verification and Acceptance Checks

4.3 General………………………………………………………………………………. 4-4

4.3.1 Test Equipment Required…………………………………………………….. 4-4

4.3.2 Display Operation………………………………………………......................4-4

4.3.3 Transmitter Frequency Test…………………………………………………...4-5

4.3.3.1 Direct Method……………………………………………………….4-5

4.3.3.2 Reference Method………………………………………………….. 4-5

4.3.4 Receiver Local Oscillator Test………………………………………………. 4-6

4.3.5 Omni-Directional Antenna Transponder Test…………………....................... 4-6

4.3.6 TAP-135 Antenna Coupler Test………………………………………………4-7

4.3.7 TAP-141 Direct Connect Antenna…………………………………………… 4-8

Section C- Annual Calibration and Alignment

4.4 General………………………………………………………………………………. 4-10

4.5 Test Equipment Required…………………………………………………………….4-10

4.6 Disassembly…………………………………………………………………………. 4-10

4.7 Digital PCB Adjustment Procedures…………………………………………………4-11

4.7.1 Frequency Voltage Settings………………………………………………….. 4-11

4.8 RF-PCB Procedure…………………………………………………………………...4-13

4.8.1 Voltage Settings……………………………………………………………….4-13

4.8.2 Frequency Settings…………………………………………………………… 4-13

4.8.3 Dynamic Range and RF Output Power Level Setting………………………...4-14

4.8.4 1090 MHz Receiver Sensitivity Test………………………………………….4-15

4.8.5 RF Power and Frequency Measurement/Calibration Setting………………… 4-16

Section D- Battery Replacement

4.9 Battery Replacement…………………………………………………….................... 4-17

Revision A T-48 90 008 026

Table of Contents (continued)

Chapter Page

V Schematics

5-1 TAP-135 Anti-Radiation Hat………………………………………………………... 5-2

5-2 TAP-141 Direct Connect……………………………………………………………. 5-3

5-3 Front Panel Interconnect…………………………………………………………….. 5-4

5-4 RF PCB Assembly (1 of 5)………………………………………………………… 5-5

5-5 Digital PCB Assembly (1 of 4)…...…………………………………………………. 5-10

5-6 Digital Range PCB Assembly………………………………………………………..5-14

VI Illustrated Parts Breakdown/Parts List

T-48 Case Assembly…………………………………………………………………………...6-2

T-48 Front Panel Assembly (1 of 3).………………………………………………………… 6-3

RF Box Assembly……………………………………………………………………………...6-9

Cable Assembly, Digital Range to Digital……………………………………………………. 6-10

Cable Assembly, Digital Range to RF…………………………………………………………6-11

Cable Assembly, LCD to Digital………………………………………………………………6-12

Cable Assembly, RF/ANT Front Panel……………...………………………........................... 6-13

TAP-135 Sub Assembly………………………………………………………………………. 6-14

TAP-141, Direct Connect Coupler Assembly………………………………………………… 6-16

T-48 Digital Range PCB Assembly……………………………………………………………6-18

T-48 Inverter PCB Assembly…………………………………………………………………. 6-20

T-48 Coupler Board Assembly………………………………………………………………...6-21

T-48 Direct Connect PCB Assembly…………………………………………………………..6-22

T-48 Anti-Radiation Hat (TAP-135) PCB Assembly………………………………………….6-23

T-48 RF PCB Assembly (1 of 2)…………………………………………………………..…. 6-24

T-48 Digital PCB Assembly (1 of 2)..………………………………………………………... 6-31

APPENDIX

A Transponder Quick Test Guides…………………………………………………………..A-1

B T-48 Test Set Calibration Test Report…………………………………………………….B-1

C Service and Training Information………………………………………………………... C-1

D T-48 MOD III Operating Test Modes……………………………………………………. D-1

Revision A T-48 90 008 026

List of Illustrations (Figures)

Figure Title Page

1-1 T-48/T-48A MOD III Transponder Ramp Test Set….…………………........................... 1-1

2-1 T-48 Accessories…………………………………………………………………………. 2-2

2-2 Controls, Indicators, and Connector Functions………………………............................... 2-4

2-3 Fuse Cartridge……………………………………………………………………………. 2-6

2-4 Omni Antenna Limitations……………………………………………………………….. 2-7

2-5 TAP-141………………………………………………………………………………….. 2-8

2-6 Transponder Sequence of Tests…………………………………………………………...2-10

3-1 T-48 MOD III Configuration Chart…………………………………...…………………..3-4

3-2 T-48 Simplified Block Diagram………………………………………....………………..3-5

4-1 Closed Box Initial Set-Up………………………………………………………………... 4-9

4-2 Interrogation Waveforms………………………………………………….........................4-12

4-3 Linear Output Response………………………………………………………………… 4-14

4-4 Receiver Sensitivity Set-Up………………………………………………........................ 4-15

4-5 Test Point Locations……………………………………………………………………… 4-18

5-1 TAP-135 Anti-Radiation Hat, Schematic…………………………………………………5-2

5-2 TAP-141 Direct Connect, Schematic...…………………………………………………... 5-3

5-3 T-48 Front Panel Interconnect Diagram, Schematic.…………………………………….. 5-4

5-4 RF PCB Assembly (5 Pages Total), Schematic…………………………………………...5-5

5-5 Digital PCB Assembly (4 Pages Total), Schematic……………………………………… 5-10

5-6 Digital Range PCB Assembly, Schematic……………………………………………….. 5-14

6-1 T-48 Case Assembly, IPB………………………………………………………………... 6-2

6-2 Front Panel Assembly (3 Pages Total), IPB………………………………………………6-3

6-3 RF Box Assembly, IPB…………………………………………………………………... 6-9

6-4 Cable Assembly, Digital Range to Digital, IPB…………………………………………..6-10

6-5 Cable Assembly, Digital Range to RF, IPB……………………………………………… 6-11

6-6 Cable Assembly, LCD to Digital, IPB…………………………………………………… 6-12

6-7 Cable Assembly, RF/ANT FP, IPB……………………………………………………….6-13

6-8 TAP-135 Anti-Radiation Hat, IPB……………………………………………………….. 6-14

6-9 TAP-141, Direct Connect, IPB……………………………………………………………6-16

6-10 Digital Range PCB Assembly, IPB………………………………………………………. 6-18

6-11 Inverter PCB Assembly, IPB……………………………………………………...............6-20

6-12 Coupler PCB Assembly, IPB…………………………………………………………….. 6-21

6-13 Direct Connect PCB Assembly, IPB……………………………………………………... 6-22

6-14 TAP-135 Anti-Radiation Hat PCB Assembly, IPB....…………………………………… 6-23

6-15 RF Board, PCB Assembly (2 Pages Total), IPB…………………………………………. 6-24

6-16 Digital Board, PCB Assembly (2 Pages Total), IPB…………………………………….. 6-31

Revision A T-48 90 008 026

vii

List of Tables

Table Title Page

2-1 T-48 MOD 3 Accessories……………………………………………………………….. 2-2

2-2 Controls, Indicators and Connectors.…………………………………………………….. 2-3

2-3 Pulse Width and Spacing Criteria….……………………………………………………...2-21

Revision A T-48 90 008 026

1-1

CHAPTER I

INTRODUCTION

SECTION A

1.1 Scope of Manual

The intent of this Manual is to familiarize the operator with the operating and maintenance procedures

necessary to utilize the T-48/T-48A MOD3 Test Set.

50-400 HZ, SINGLE PHASE

120/220 VAC, 25 WATTS

120 VAC- 0.25 FTT, 220 VAC-0.125 FTT

T-48

MODE S/ATCRBS

TRANSPONDER RAMP

TEST SET

TEL-INSTRUMENT ELEC. CORP

TYPE WATTS

PART NO.

SERIAL NO.

INPUT 115/230 VAC 50-400HZ

CAGE CODE 92606 USA

MOD 1 2 3 4 5 6

TEST

INTERROGATE

ACCESSORIES

REPEAT

OFF

STORE

ANTENNA

LIGHTS

OFF

Figure 1-1

T-48/T-48A MOD 3 Transponder Ramp Test Set

1.2 Purpose and Function of the Equipment

The T-48/T-48A MOD 3 Test Set (T/S), tests airborne ATCRBS MODE A & C and MODE S

transponders. It is self-contained and battery operated, that requires no direct hardware connection to the

equipment under test. The Test Set receives from and radiates signals to the Unit Under Test (UUT) from

an antenna supplied with the T/S. For MODE S and ATCRBS transponder tests, an antenna coupler unit is

provided to measure transponder transmitter power, receiver frequency, receiver sensitivity, and diversity

operation.

Ce manuel convient aux modèles suivants

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