IFR NAV-402AP-3 Operation Manual

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OPERATION MANUAL

RAMP TEST SET

NAV-402AP-3

PUBLISHED BY

IFR, INC.

COPYRIGHT All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise without the prior permission of the publisher.

Original Printing Jul 1/00 Issue-2 Oct 1/01

 IFR, Inc. 2001

10200 West York / Wichita, Kansas 67215 U.S.A. / (316) 522-4981 / FAX (316) 524-2623

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OPERATION MANUAL NAV-402AP-3

Nomenclature Statement: In this manual the NAV-402AP, NAV-402AP Test Set, Test Set or Unit refers

to the NAV-402AP-3 Marker, G/S, VOR, COMM and Auto Pilot Ramp and Bench Test Set.

For continued EMC compliance, all external cables must be 3 meters or less in length.

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OPERATION MANUAL NAV-402AP-3

SAFETY FIRST: TO ALL OPERATIONS PERSONNEL

REFER ALL SERVICI NG OF UNIT TO QUALIFIED TECHNICAL PE RSONNEL. THIS UNIT CONTAINS NO OPERATOR SERVICEABLE PARTS.

WARNING: USING THI S EQUIPMENT IN A MANNER OTHER THAN SPECIFIED BY THE ACCOMPANYING

DOCUMENTATION MAY IMPAIR THE SAFETY PROTECTION PROVIDED BY THE EQUIPMENT.

CASE, COVER OR PANEL REM OVAL

Removing the Chassis As sembly from the Case Assembl y exposes the operator to electrical haz ards that can result in electric al shock or equipment damage. Operate Test Set only with the Chassis Assembl y installed in the Case Assembly.

SAFETY IDENTIF ICATION IN TECHNICAL MANUAL

This manual uses the foll owing terms to draw attention to possible s afety hazards, that may exi st when operating this equipment.

CAUTION: THIS TERM IDENTIFIES CONDITIONS OR ACTIVITIES THAT, IF IGNORED, CAN RESULT IN

EQUIPMENT OR PROPERTY DAMAGE (E.G., FIRE).

WARNING: THIS TE RM IDENTIFIES CONDITIONS OR ACT IVITIES THAT, IF IGNORE D, CAN RESULT IN

PERSONAL INJURY OR DEATH.

SAFETY SYMBOLS IN MANUALS AND ON UNITS

CAUTION: Refer to accompany ing documents. (This symbol ref ers to specific CAUTIONS represent ed on the unit and clarified in the t ext.)

AC OR DC TERMINAL: Terminal that may supply or be supplied with ac or dc volt age.

DC TERMINAL: Terminal that m ay supply or be supplied with dc voltage.

AC TERMINAL: Terminal that m ay supply or be supplied with ac or alternating v oltage.

EQUIPMENT GROUNDING PRE CAUTION

Improper grounding of equipment can result in electrical shock.

USE OF PROBES

Check the specific ations for the maximum voltage, c urrent and power ratings of any connector on the Test Set before connecting it wi th a probe from a terminal device. Be sure t he terminal device performs within these specificat ions before using it for measurement, to prev ent electrical shock or damage to t he equipment.

POWER CORDS

Avoid using power cords whic h are frayed, broken or expose bare wiring when operating this equi pment.

USE RECOMMENDED FUSES ONLY

Use only fuses spec ifically recommended for the equipment at the specified current and voltage ratings .

INTERNAL BATTERY

This unit contains a Nic kel Cadmium Battery, servic eable only by a qualified technician. CAUTION: MODE GENERATORS CAN B E A SOURCE OF ELECTROMAGNETIC I NTERFERENCE (EMI) TO

COMMUNICATION RECEI VERS. SOME TRANSMITTE D SIGNALS CAN CAUSE DISRUPT ION AND INTERFERENCE TO COMMUNICATION SERVICES OUT TO A DISTANCE OF SEVERAL MILES. USERS OF THI S EQUIPMENT SHOULD SCRUTINIZE ANY OPERATION THAT RESULTS IN RADIATION OF A MODE (DIRECTLY OR INDIRECTLY) AND SHOULD TAKE NECESSARY PRECAUTIONS TO AVOID POTENTIAL COMMUNICATION INTERFERENCE PROBLEMS.

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OPERATION MANUAL NAV-402AP-3

LIST OF EFFECTIVE PAGES

CHAPTER/SECTION/SUBJECT PAGE DATE Title / Copyright Page Oct 1/01

Statements Oct 1/01 Safety Page Jul 1/00 List of Effective Pages 1 Oct 1/01 List of Effective Pages 2 Jul 1/00 Table of Contents 1 through 2 Jul 1/00 Introduction 1 through 2 Jul 1/00 1-Table of Contents 1 through 2 Jul 1/00 1-List of Illustrations 1 through 2 Jul 1/00 1-List of Tables 1 through 2 Jul 1/00 1-1-1 1 through 2 Jul 1/00 1-2-1 1 through 4 Jul 1/00 1-2-2 1 through 10 Jul 1/00 1-2-3 1 through 12 Jul 1/00 1-3-1 1 through 12 Jul 1/00 1-4-1 1 through 2 Jul 1/00 1-5-1 1 through 2 Jul 1/00 Appendix A 1 through 2 Jul 1/00 Appendix B 1 through 2 Jul 1/00 Appendix C 1 through 2 Jul 1/00 Index 1 through 2 Jul 1/00

LIST OF EFFECTIVE PAGES

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LIST OF EFFECTIVE PAGES

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OPERATION MANUAL NAV-402AP-3

TABLE OF CONTENTS

Title Chapter/Section

Title Page Copyright Page Statements Safety Page Record of Revisions List of Effective Pages Table of Contents Introduction

Chapter 1

Section 1 - Description 1-1 Section 2 - Operation 1-2 Section 3 - Specifications 1-3 Section 4 - Shipping 1-4 Section 5 - Storage 1-5

Appendix A - Table of I/O Connectors Appendix B - Metric/British Imperial Conversion Table with Nautical Distance Conversions Appendix C - Abbreviations

Index

TABLE OF CONTENTS

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TABLE OF CONTENTS

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OPERATION MANUAL NAV-402AP-3

INTRODUCTION - NAV-402AP TEST SET

This manual contains NAV-402AP operating instructions for Marker, G/S, VOR, LO C, COMM and Auto Pilot systems. It is strongly recommended that personnel be thoroughly familiar with the contents of this manual before attempting to operate this equipment.

Refer all servicing of unit to qualified technical personnel. ORGANIZATION This manual is divided into the following Chapters and Sections: CHAPTER 1 - OPERATION

Section 1 - DESCRIPTIO N (description of the NAV-402AP) Section 2 - OPERAT ION (installation; description of controls, connectors and

indicators; and general operating procedures) Section 3 - SPECIFIC ATIONS Section 4 - SHIPPING Section 5 - STO RAGE

INTRODUCTION

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INTRODUCTION

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OPERATION MANUAL NAV-402AP-3

CHAPTER ONE

NAV-402AP TEST SET

OPERATION MANUAL

TABLE OF CONTENTS

Title Chapter/Section/Subject Page

SECTION 1 - DESCRIPTION

1. General Descr iption and Capabilities 1-1-1 1

1.1 Description 1-1-1 1

1.2 Functional Capabilities 1-1-1 1 SECTION 2 - OPERATION

1. Installation 1-2-1 1

1.1 General 1-2-1 1

1.2 Battery Operation 1-2-1 1

1.3 Battery Charging 1-2-1 1

1.4 Safety Precautions 1-2-1 1

1.4.1 Complying with Instructions 1-2-1 1

1.4.2 Grounding Power Cord 1-2-1 1

1.4.3 Operating Safety 1-2-1 1

1.4.4 CAUTION and WARNING Labels 1-2-1 2

1.5 AC Power Requirements 1-2-1 2

1.6 FCC Requirements 1-2-1 2

1.7 Battery Recharging 1-2-1 2

1.8 Bench Operation 1-2-1 3

1.9 External Cleaning 1-2-1 3

2. Controls, Connectors And Indicators 1-2-2 2

2.1 Front Panel 1-2-2 4

2.2 Rear Panel 1-2-2 10

3. General O perating Procedures 1-2-3 1

3.1 General 1-2-3 1

3.2 Signals Simulated 1-2-3 1

3.3 Operation CAUTIONS 1-2-3 1

3.4 Ramp Operation 1-2-3 1

3.5 Bench Operation 1-2-3 2

3.6 Counter Operation 1-2-3 2

3.7 Battery Parameters 1-2-3 2

3.8 Operate LOC and G/S Simultaneously 1-2-3 2

3.9 Marker Operation (Typical Control Settings) 1-2-3 3

3.10 VOR Operation (Typical Control Settings) 1-2-3 4

3.11 Localizer Operation (Typical Control Settings) 1-2-3 5

3.12 Glide Slope Operation (Typical Control Settings) 1-2-3 6

3.13 Communication Operation (Receiver Tests) (Typical Control Settings) 1-2-3 7

3.14 Communication Operation (Transmitter Tests) (Typical Control Settings) 1-2-3 8

1-TABLE OF CONTENTS

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OPERATION MANUAL NAV-402AP-3

Title Chapter/Section/Subject Page

SECTION 3 - SPECIFICATIONS

1. NAV-402AP Specifications 1-3-1 1

1.1 RF Output 1-3-1 1

1.2 Marker Mode 1-3-1 2

1.3 VOR Mode 1-3-1 3

1.4 LOC Mode (Primary or Auxiliary) 1-3-1 4

1.5 G/S Mode 1-3-1 5

1.6 COM Mode 1-3-1 6

1.7 External Frequency Counter 1-3-1 7

1.8 Power Meter 1-3-1 8

1.9 Battery Level Monitor 1-3-1 8

1.10 Bearing Monitor 1-3-1 8

1.11 Battery 1-3-1 8

1.12 AC Power 1-3-1 9

1.13 Environmental 1-3-1 9 SECTION 4 - SHIPPING

1. Shipping Test Sets 1-4-1 1

1.1 Information 1-4-1 1

1.2 Repacking Procedure 1-4-1 1 SECTION 5 - STORAGE

1. Storing Test Sets 1-5-1 1

1-TABLE OF CONTENTS

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OPERATION MANUAL NAV-402AP-3

LIST OF ILLUSTRATIONS

Title Chapter/Section/Subject Page

Battery Recharging 1-2-1 3 NAV-402AP Front and Rear Panels 1-2-2 2 Repacking Procedure 1-4-1 2

1-LIST OF ILLUSTRATIONS

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1-LIST OF ILLUSTRATIONS

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OPERATION MANUAL NAV-402AP-3

LIST OF TABLES

Title Chapter/Section/Subject Page

Specified Fuse Ratings 1-2-1 2 Correspondence Chart for Decibels, Volts and Watts 1-2-3 9 Correspondence Chart for 90 Hz and 150 Hz Tones (LOC) 1-2-3 12 Correspondence Chart for 90 Hz and 150 Hz Tones (G/S) 1-2-3 12 VOR Bearing Select Switches 1-3-1 10 90 Hz and 150 Hz Tones Variable Phase Relationships 1-3-1 11

1-LIST OF TABLES

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1-LIST OF TABLES

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OPERATION MANUAL IFF-701Ti

SECTION 1 - DESCRIPTION

1. GENERAL DESCRIPTION AND CAPABILITIES

1.1 DESCRIPTION

The NAV-402AP is a Bench and Ramp Test Set designed to meet the electronic functional test requirements of Category I and Category II ILS Systems, Communication (COMM), Navigation (NAV) and Marker (MKR) Systems.

The NAV-402AP contains features to allow testing of sophisticated autopilot systems. These features include: automatic LOC DDM, automatic sweep, two fixed VOR frequencies; and two fixed, paired LOC and G/S frequencies.

1.2 FUNCTIONAL CAPABILITIES

The NAV-402AP has the following features and capabilities:

● Signal Generator with a var iable

attenuator which can be connected to the equipment under test by a radiated signal from a self-contained antenna or by a coaxial cable. The signal generator can be operated under either fixed frequency control or in variable frequency mode in each band.

● The generator can be modulated

internally by a 1020 Hz Ident Tone, Marker, VHF Omnidirectional Range (VOR), Localizer (LOC) or Glide Slope (G/S) Tones.

● A built-in RF power meter measur es COM Transmitter power, from 0-10W or 0-100W, either peak or average power by selecting a switch position located on the Front Panel. A COM Transmitter demodulation output permits viewing or listening to COM modulation.

● A built-in modulation meter measures Signal Generator Percent of Modulation on any frequency band from 0-30% or 0-100%. Front Panel controls permit quick setting of modulation percentages.

● A 90

● A NICAD battery and built-in charging

° bearing check monitor allows

quick verification of basic VOR bearing from the VOR demod signal.

system permit completely portable operation for up to 2 hours continuous duty. Any time the Test Set is plugged to an ac line, the battery is being charged. In battery operation, an automatic timer turns the Test Set off after 6 to 10 minutes. The Test Set can be recycled by pressing the PWR/BAT Switch to the BAT position.

● A six-digit counter which indicates the RF of the signal generator on any band, the frequency of a COM Transmitter under test, any external signal input from 1 MHz to at least 300 MHz, or the VOR Bearing selected by the Bearing Select Switches.

1-1-1

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1-1-1

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OPERATION MANUAL IFF-701Ti

SECTION 2 - OPERATION

1. INSTALLATION

1.1 GENERAL

The Test Set is powered by an internal battery. The Test Set contains a battery charging circuit which enables the operator to recharge the battery when connected to ac power.

NOTE: The Test Set can operate

continuously on ac power for servicing and/or bench tests.

Refer to 1-2-2, Figure 2 for location of controls, connectors or indicators.

1.2 BATTERY OPERATION

The internal battery (NICAD) is equipped to power the Test Set for two hours of continuous use, after which time, the Test Set battery needs recharging.

The 0 to 30% scale displays battery voltage. Normal battery charged condition is indicated as 15 V or greater. Less than

12.5 V indicates a discharged battery. An

automatic low voltage cutoff circuit turns the Test Set OFF when the battery voltage drops under 12.5 V.

The Test Set contains an automatic timeout to conserve power. An automatic timer turns the Test Set OFF after 6 to 10 minutes (only when using battery power). The Test Set can be recycled by pressing the PWR/BAT Switch to the BAT position.

1.3 BATTERY CHARGING

The battery charger operates whenever ac power is applied to the Test Set. The battery should be charged every three months (minimum).

NOTE: Overnight charging is

recommended.

1.4 SAFETY PRECAUTIONS

The following safety precautions must be observed during installation and operation. IFR Systems, Inc. assumes no liability for failure to comply with any safety precaution outlined in this manual.

1.4.1 Complying w ith Instructions

Installation/operating personnel should attempt to install or operate the Test Set only after reading and complying with instructions contained in this manual. All procedures contained in this manual must be performed in exact sequence and manner described.

1.4.2 Grounding Power Cord WARNING: USE OF A THREE-PRONG TO

TWO-PRONG ADAPTER PLUG CREATES A SHOCK HAZARD BETWEEN THE CHASSIS AND ELECTRICAL GROUND.

For ac operation, the power cord, equipped with standard three-prong plug, must be connected to a properly grounded threeprong receptacle. It is the customer’s responsibility to:

● Have a qualified electrician check receptacle(s) for proper grounding.

● Replace any standard two-prong receptacle(s) with properly grounded three-prong receptacle(s).

1.4.3 Operating Safety

Due to potential for electrical shock within test equipment, the Chassis Assembly must remain installed in the Case Assembly. Battery replacement must only be performed by qualified service technicians.

1-2-1

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OPERATION MANUAL IFF-701Ti

1.4.4 CAUTION and WARNING Labels

Exercise extreme care when performing operations preceded by a CAUTION or WARNING label. CAUTION labels appear where possibility of damage to equipment exists. WARNING labels denote conditions where bodily injury or death may result.

1.5 AC POWER REQUIREMENTS

The Test Set operates over a voltage range of 100 to 120 VAC at 60 Hz or 220 to 240 VAC at 50 Hz according to VOLTAGE SELECT Switch setting.

The specified fuse ratings are listed in 1-2-1, Table 1.

CAUTION: FOR CONTINUOUS

PROTECTION AGAINST F IRE, REPLACE ONLY WITH FUSES OF THE SPECIFIED VOLTAGE AND CURRENT RATINGS.

INPUT VOLTAGE F1 AND F2 FUSES

100 to 120 VAC 1.0 A, 250 V

Fast Blo (Type F)

(IFR PN: 5106-4501-000)

(1.25” AGC Glass)

220 to 240 VAC 0.5 A, 250 V

Fast Blo (Type F)

(IFR PN: 5106-0000-016)

(1.25” AGC Glass)

Specified Fuse Ratings

Table 1

1.6 FCC REQUIREMENTS

The Test Set is prohibited from use in VAR (variable) frequency modes during ramp use. Any test signals radiated from the antenna must be fixed frequencies. The Test Set is prohibited from externally modulating any band during ramp use. This includes microphones, audio generators, etc.

1.7 BATTERY RECHARGING

Refer to 1-2-1, Figure 1. STEP PROCEDURE

1. Verify FUSES are correct for normal operating voltage. Refer to 1-2-1, para 1.5.

2. Verify VOLTAGE SELECT Switch is set to the setting (115 or 230 VAC) that matches the input ac power.

3. Connect ac power cable between AC Power Connector and normal operating voltage power source, according to Test Set configuration. Refer to 1-2-1, para 1.5.

NOTE: The battery charger operates

whenever ac power is applied to the Test Set.

4. Allow several hours for battery charge or until 0 to 30% scale displays battery voltage is 15 V or greater.

NOTE: Overnight charging is

recommended.

1-2-1

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NAV TONE

OPERATION MANUAL IFF-701Ti

PWR MONSIG GEN

DEMOD DEMOD

OUT

1.0A @ 110VAC

0.5A @ 220VAC TYPE F

115

230

AC IN CONNECTOR

00920004

Battery Recharging

Figure 1

1.8 BENCH OPERATION

STEP PROCEDURE

1. Verify FUSES are correct for normal operating voltage. Refer to 1-2-1, para 1.5.

2. Verify VOLTAGE SELECT Switch is set to the setting (115 or 230 VAC) that matches the input ac power.

3. Connect ac power cable between AC Power Connector and normal operating voltage power source according to Test Set configuration. Refer to 1-2-1, para 1.5.

4. Press PWR/BAT Switch to PWR position and verify POWER ON Indicator illuminates.

5. Connect UUT to Test Set.

1.9 EXTERNAL CLEANING

The following procedure contains routine instructions for cleaning the outside of the Test Set.

CAUTION: DISCONNECT POWER FROM

TEST SET TO AVOID POSSIBLE DAMAGE TO ELECTRONIC CIRCUITS.

STEP PROCEDURE

1. Clean front panel buttons and display face with soft lint-free cloth. If dirt is difficult to remove, dampen cloth with water and a mild liquid detergent.

2. Remove grease, fungus and ground-in dirt from surfaces with soft lint-free cloth dampened with isopropyl alcohol.

3. Remove dust and dirt from connectors with soft-bristled brush.

4. Cover unused connectors with suitable dust covers to prevent tarnishing of connector contacts.

5. Clean cables with soft lint-free cloth.

6. Paint exposed metal surface to avoid corrosion.

1-2-1

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1-2-1

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OPERATION MANUAL IFF-701Ti

2. CONTROLS, CONNECTORS AND INDICATORS

1 2 3 4 5 6 7 8 9

MONITOR

2 0

4 0

1 0

V 0 R

B R G

MASTER

MOD

CAL

PWR

BAT

6 0

FROM

100W 10W

8 0

100%

2 0

30%

BAT

30% 100% BRG

LOC DDM

.093

0090

.155

.200

9.96 KHz VAR

.150

DDM

.093

.155

.200

DDM

LOC VAR

LOC FIXED

VOR VAR

VOR FIXED

MKR VAR

MKR FIXED

MOD IN

CTR IN

NAV - 402AP

MODE

G/S FIXED

G/S VAR

COM FIXED

COM 25 KHz

COM 8.33 KHz

.091

.175

.400

.90

1020

400

1300

3000

FIXED

G/S

DDM

TUNE

.091

.175

.400

.150

PEAK LOC

XMTR

AVG

27 26 25 24 23 22 21 20 19 18 17 16

GEN HZ KHZ KHZ MHZ BRG

OUTPUT

-dBm

VAR FREQ

OUT

00920001

NAV TONE

SIG GEN

PWR MON

DEMOD

1.0A @ 110VAC

0.5A @ 220VAC TYPE F

OUT DEMOD

115

230

NAV-402AP Front and Rear Panels

Figure 2

00920002

1-2-2

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OPERATION MANUAL IFF-701Ti

CONTROLS, CONNECTORS AND INDICATORS

IN NUMERIC ORDER

MONITOR Meter 1 MONITOR METER FUNCTION Switch 2 LOC DDM Control 3 DIGITAL Display 4 FREQUENCY MODE Switch 5 G/S DDM Control 6 CRYSTAL HI/LO Switch 7 COUNTER MODE Switch 8 METER BEARING CENTER Adjust 9 VAR FREQ Controls 10 TUNE Indicator 11 TUNE Control 12 OUTPUT ATTENUATOR Control 13 FINE TUNE Switch 14 RF OUT Connector 15 COM XMTR IN Connector 16 AVG/PEAK LOC XMTR ON Switch 17 90/150 Hz VAR PHASE (φ) Switch 18 G/S CENTER Adjust 19 G/S VAR DDM Control 20 TONE SELECT Switch 21 MOD IN/EXT FREQ CTR IN Connector 22 LOC CENTER Adjust 23 LOC VAR DDM/DDM SWEEP AMPLITUDE

Control 24

9.96 kHz REF LEVEL Control 25 30 Hz VAR LEVEL Control 26 LOC DDM SWEEP Switch 27 PWR/BAT Switch 28 MASTER MOD LEVEL Control 29 POWER ON Indicator 30 VOR BRG SELECT Switches 31 VOR BRG TO/FROM Switch 32 NAV TONE OUT Connector 33 SIG GEN DEMOD Connector 34 PWR MON DEMOD Connector 35 FUSES 36 VOLTAGE SELECT Switch 37 AC IN Connector 38

CONTROLS, CONNECTORS AND INDICATORS

IN ALPHABETICAL ORDER

30 Hz VAR LEVEL Control 26 90/150 Hz VAR PHASE (φ) Switch 18

9.96 kHz REF LEVEL Control 25 AC IN Connector 38 AVG/PEAK LOC XMTR ON Switch 17 COM XMTR IN Connector 16 COUNTER MODE Switch 8 CRYSTAL HI/LO Switch 7 DIGITAL Display 4 FINE TUNE Switch 14 FREQUENCY MODE Switch 5 FUSES 36 G/S CENTER Adjust 19 G/S DDM Control 6 G/S VAR DDM Control 20 LOC CENTER Adjust 23 LOC DDM Control 3 LOC DDM SWEEP Switch 27 LOC VAR DDM/DDM SWEEP AMPLITUDE

Control 24 MASTER MOD LEVEL Control 29 METER BEARING CENTER Adjust 9 MOD IN/EXT FREQ CTR IN Connector 22 MONITOR Meter 1 MONITOR METER FUNCTION Switch 2 NAV TONE OUT Connector 33 OUTPUT ATTENUATOR Control 13 POWER ON Indicator 30 PWR/BAT Switch 28 PWR MON DEMOD Connector 35 RF OUT Connector 15 SIG GEN DEMOD Connector 34 TONE SELECT Switch 21 TUNE Control 12 TUNE Indicator 11 VAR FREQ Controls 10 VOLTAGE SELECT Switch 37 VOR BRG SELECT Switches 31 VOR BRG TO/FROM Switch 32

1-2-2

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OPERATION MANUAL IFF-701Ti

2.1 FRONT PANEL

Refer to 1-2-2, Figure 2. ITEM DESCRIPTION

1. MONITOR Meter Provides, according to MONITOR

METER FUNCTION Switch selection, analog indication of COM Transmitter RF power, Signal Generator RF level, Battery voltage, percent modulation of Signal Generator or VOR bearing errors at 90

°.

2. MONITOR METER FUNCTION Switch Selects MONITOR Meter function:

● 10W selects 0 to 10 Watt scale

(bottom scale) to measure COM Transmitter RF power.

● 100W selects 0 to 100 Watt scale

(bottom scale X 10) to measure COM Transmitter RF power.

● RF indicates best Signal Generator

RF level by adjusting TUNE Control with FINE TUNE Switch pressed to set MONITOR Meter to center scale.

ITEM DESCRIPTION

3. LO C DDM Control Selects amount of LOC pointer

deviation of an ILS Indicator under test. Calibrations in DDM represent, standard deflection (.093), full scale (.155) and greater than full scale deflections (.200). Clockwise rotation provides upward deflection.

The 150 ~ or 90 ~ position deletes the opposite tone (90 or 150 Hz) and sets the selected tone (150 or 90 Hz) to the same level as the on course value (20%) for a flag test.

NOTE: Setting the G/S DDM Control

to the same 150 ~ or 90 ~ position when using the Localizer function deletes the selected Localizer tone.

Setting the LOC DDM Control to

150 ~ and the G/S DDM Control to 90 ~ or vice versa provides continuous

wave operation.

● BAT selects 0 to 30% scale in volts to indicate internal Battery voltage. A

≥15 V reading indicates

a fully charged Battery. A <12 V reading indicates a discharged Battery.

● 30% selects 0 to 30% scale to measure modulation level of Signal Generator.

● 100% selects 0 to 100% scale to measure modulation level of Signal Generator.

● BRG checks VOR Gener ator at 90

°. Center of the band indicates

° bearing error. Left or right

meter scale limit indicates bearing errors of

±0.5%.

The

↓ position allows the LOC VAR

DDM/DDM SWEEP AMPLITUDE Control to set continuously deviated deflection.

4. DIGITAL Display Provides digital readout of selected

VOR bearing, internal Signal Generator frequency, external signal frequency or COM Transmitter frequency. The COUNTER MODE Switch determines displayed function.

1-2-2

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OPERATION MANUAL IFF-701Ti

ITEM DESCRIPTION

5. FREQUENCY MODE Switch Selects frequency band to be used:

Marker (MKR), VOR, Localizer (LOC), Glide Slope (G/S) or COMM. Each band except COM has two positions; one with a fixed frequency (FIXED) and the other with a variable frequency (VAR). The COM band has three positions; one with a fixed frequency (FIXED) and two with variable frequencies (COM 25kHz and COM 8.33kHz).

6. G /S DDM Control Selects amount of G/S pointer

deviation of an ILS Indicator under test. Calibrations in DDM represent standard deflection (.091), full scale (.175) and greater than full scale deflections (.400). Clockwise rotation provides upward deflection.

The 90 ~ or 150 ~ position deletes the opposite tone (150 or 90 Hz) and sets the selected tone (90 or 150 Hz) to the same level as the on course value (40%) for a flag test.

NOTE: Setting the LOC DDM Control

to the same 90 ~ or 150 ~ position when using the Glide Slope function deletes the selected Glide Slope tone.

Setting the G/S DDM Control to 90 ~ and the LOC DDM Control to 150 ~ or vice versa provides continuous wave (CW) operation.

The

↓ position allows the G/S VAR

DDM Control to set continuously deviated deflection.

ITEM DESCRIPTION

7. C RYSTAL HI/LO Switch Selects high (HI) or low (LO) fixed

frequencies in G/S FIXED or VOR FIXED modes as selected by the FREQUENCY MODE Switch. The CRYSTAL HI/LO Switch also applies modulation to the appropriate Localizer Transmitter frequency when FREQUENCY MODE Switch is set to G/S FIXED. The Test Set pairs Localizer Transmitter frequencies with G/S fixed frequencies when AVG/PEAK LOC XMTR ON Switch is set to PEAK LOC.

8. COUNTER MODE Switch Selects signal source to be counted

and shown on the DIGITAL Display:

● GEN measures and display

internal Signal Generator frequency.

● HZ (1 Hz resolution), kHZ (10 Hz

resolution), KHZ (100 Hz resolution) and MHZ (1 kHz resolution) measures and displays COM Transmitter frequency connected to COM XMTR IN Connector or external signal frequency connected to MOD IN/EXT FREQ CTR IN Connector.

● BRG measures and displays digital

bearing circuit output to verify bearing set by VOR BRG SELECT Switches. In the BRG position, the bearing monitor circuits also check VOR modulation for correct operation at 90

°.

9. MET ER BEARING CENTER Adjust

Used to center the MONITOR Meter when the MONITOR METER FUNCTION Switch is set to BRG and the COUNTER MODE Switch is set to any position except

BRG. The METER BEARING CENTER Adjust sets a reference level in the internal bearing check operation.

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OPERATION MANUAL IFF-701Ti

ITEM DESCRIPTION

10. VAR FREQ Controls Coarse and fine controls manually

channel sweep the internal Signal Generator frequency when the FREQUENCY MODE Switch is in a VAR position. Clockwise rotation increases the frequency.

11. TUNE Indicator Indicates a tuned Signal Generator.

The TUNE Indicator stops illuminating when the Signal Generator is within the fine tune range.

12. TUNE Control NOTE: For maximum accuracy, the TUNE

Control should be adjusted prior to any receiver tests.

Adjusts the Signal Generator for optimum tuning. The TUNE Control requires readjustment when:

● Selecting a different frequency

band with the FREQUENCY MODE Switch.

ITEM DESCRIPTION

13. OUTPUT ATTENUATOR Control Adjusts the Signal Generator output

level at the RF OUT Connector into a 50

Ω load. The attenuator dial is

calibrated in -dBm (dB below 1 mW). The dial is accurate below -30 dBm. Another chart (also included with the Test Set) converts -dBm to soft

NOTE: Soft

µV are µV measured with

Ω loading. Hard µV are µV

µV.

measured through a 6 dB attenuator, into a 50

Ω load.

14. FINE TUNE Switch This switch fine tunes the Signal

Generator output when the TUNE Indicator stops illuminating (signal within tune range). With the FINE TUNE Switch pressed, the TUNE Control tunes the signal for minimum deflection from 0 (zero) on the MONITOR Meter.

● Adjusting VAR FREQ C ontrols to change frequency more than a few MHz in any one band.

● Setting or changing the OUTPUT ATTENUATOR Control.

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ITEM DESCRIPTION

15. RF OUT Connector Provides the attenuated Signal

Generator output to UUT. The connected UUT should provide a 50

Ω termination to the RF OUT

Connector. NOTE: The RF OUT Connector is

diode protected against an accidentally keyed COM Transmitter.

16. COM XMTR IN Connector CAUTION: MAXIMUM INPUT

SHOULD STAY WITHIN LIMITS DEFINED IN 1-3-1, TABLE 2, INPUT POWER VERSUS TIME LIMITS.

Provides an input to the MONITOR Meter. Allows for power and frequency measurements when connected to a COM Transmitter using a 50

Ω cable.

ITEM DESCRIPTION

17. AVG/PEAK LOC XMTR ON Switch Selects power meter function

displayed on MONITOR Meter when MONITOR METER FUNCTION Switch is set to 10W or 100W:

● PEAK sets the MONITOR Meter to

display peak power amplitude of a COM Transmitter with modulation applied. PEAK also provides Localizer Transmitter output simultaneously with the Glide Slope signal when the FREQUENCY MODE Switch is set to G/S FIXED (for checking Autopilots or Course Computers).

● AVG sets the MONITOR Meter for

displaying the average RF power of a COM Transmitter and disregards power changes due to proper modulation.

When the MONITOR METER FUNCTION Switch is set to 10W or 100W, the MONITOR METER indicates COM Transmitter power, either peak (AVG/PEAK LOC XMTR ON Switch set to PEAK LOC) or average (AVG/PEAK LOC XMTR ON Switch set to AVG). The Test Set connects an internal 25 dB attenuator in series with the power monitor circuit.

When the COUNTER MODE Switch is set to HZ, KHZ, KHZ or MHZ, the DIGITAL Display indicates COM Transmitter frequency.

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ITEM DESCRIPTION

18. 90/150 Hz VAR PHASE (φ) Switch Varies the phase (

φ) of the 150 Hz

tone relative to the 90 Hz tone. Normally, the 90 and 150 Hz tones, used in Glide Slope and Localizer simulations, are locked in phase together. Adjusting the VOR BRG SELECT Switches while pressing the 90/150 Hz VAR PHASE (

φ) Switch,

changes phase relationship. If the VOR BRG SELECT Switches are set to 000.0, pressing the 90/150 Hz VAR PHASE ( change in phase. Each 1

φ) Switch produces no

° step

selected on the VOR BRG SELECT Switches shifts the 150 Hz tone 5 relative to the 90 Hz tone. The 90 Hz tone always remains constant in phase relative to the 000.0 set on the VOR BRG SELECT Switches.

Setting the VOR BRG SELECT Switches to 024.0 (24 with the 90/150 Hz VAR PHASE (

° VOR bearing)

φ)

Switch pressed puts the 90 and 150 Hz tones in original phase relationship. Setting the VOR BRG SELECT Switches to 012.0 (12

° VOR

bearing) with the 90/150 Hz VAR PHASE (

φ) Switch pressed, places the

amplitude summation of the 90 and 150 Hz tones at maximum magnitude.

19. G/S CENTER Adjust Varies the amplitude of the 90 Hz tone

and controls exact course centering for Glide Slope modulation.

20. G/S VAR DDM Control Continuously varies G/S pointer

deflection from counterclockwise (ccw) 0.8 DDM (down) through 0 DDM to clockwise (cw) 0.8 DDM (up). Setting the G/S DDM Control to

↓ activates the G/S VAR DDM Control.

ITEM DESCRIPTION

21. TONE SELECT Switch Selects modulation input to the

internal Signal Generator or input to the internal digital Counter:

● CTR IN connects the MOD IN/EXT

FREQ CTR IN Connector input to the Counter, active with COUNTER MODE Switch set to HZ, KHZ, KHZ or MHZ.

● MOD IN applies the MOD IN/EXT

FREQ CTR IN Connector modulation to the Signal Generator.

● 1020 applies 1020 Hz modulation

to the frequency band (except G/S) set by FREQUENCY MODE Switch.

● 400 applies 400 Hz modulation to

the frequency band (except G/S) set by FREQUENCY MODE Switch.

● 1300 applies 1300 Hz modulation

to the frequency band (except G/S) set by FREQUENCY MODE Switch.

● 3000 applies 3000 Hz modulation

to the frequency band (except G/S) set by FREQUENCY MODE Switch.

22. MOD IN/EXT FREQ CTR IN Connector Provides an input for external

modulation to the internal Signal Generator or a 1 to 300 MHz signal to the internal digital Counter as selected by the TONE SELECT Switch.

23. LOC CENTER Adjust Varies the amplitude of the 90 Hz tone

and controls exact course centering for Localizer modulation.

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ITEM DESCRIPTION

24. LOC VAR DDM/DDM SWEEP AMPLITUDE Control

Controls variable Localizer DDM/DDM sweep amplitude when the LOC DDM Control is set to

↓

and according to

LOC DDM SWEEP Switch setting:

● LOC DDM SWEEP Sw itch set to O. Continuously varies LOC pointer

deflection from ccw 0.4 DDM (left) through 0 DDM to cw

0.4 DDM (right).

● LOC DDM SWEEP Sw itch set to AL, S or AR.

Sets the maximum DDM deflection/sweep amplitude from 0 to 30

µA (±0.0155 DDM) for an

automatic LOC DDM sweep.

25. 9.96 kHz REF LEVEL Control Adjusts modulation percentage of the

9.96 kHz VAR tone (part of VOR composite signal) from 0 to 30%. The

9.96 kHz VAR LEVEL Control (outside larger knob) reaches 30% when turned past 30 to the stop.

26. 30 Hz VAR LEVEL Control

ITEM DESCRIPTION

27. LOC DDM SWEEP Switch Sets the Localizer sweep mode:

● O allows manual sweep or variable

DDM adjusted by LOC VAR DDM/DDM SWEEP AMPLITUDE Control.

● AR (arm right) or AL (arm left)

initializes internal sweep circuit to 0 DDM and determines initial sweep direction prior to selecting sweep mode (S).

● S initiates automatic LOC DDM

sweep beginning at 0 DDM and deflecting to the direction according to the prior arming setting (AR or AL). The sweep continues to the maximum pointer deflection determined by the LOC VAR DDM/DDM SWEEP AMPLITUDE Control setting. The sweep reverses and continues to the maximum pointer deflection in the other direction. The sweep is symmetrical relative to 0 DDM.

28. PWR/BAT Switch Two position switch controls power to

the Test Set:

Adjusts modulation percentage of the 30 Hz VAR tone (part of VOR composite signal) from 0 to 30%. The 30 Hz VAR LEVEL Control (inside smaller knob) reaches 30% when turned past 30 to the stop.

● PWR connects Test Set to ac line

power connected to AC IN Connector.

● BAT connects or disconnects Test

Set from internal Battery. Connecting the Test Set to the Battery activates an internal battery timer. Test Set operation disconnects from the internal Battery after reaching the internal battery timer limit (

≈6 to 10

minutes) or by pressing the PWR/BAT Switch to BAT to disconnect.

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OPERATION MANUAL IFF-701Ti

ITEM DESCRIPTION

29. MASTER MOD LEVEL Control Controls modulation level of all

modulating tones:

● CAL (detent) position ( fully ccw)

fixes modulation levels of each type of signal to normal values; 20% for LOC, 30% for VOR and COMM, 40% for G/S and 95% for MKR.

● Other than CAL, adjusts

modulation levels of each type of signal from 3% to 35% for LOC, 55% for VOR and COMM, 75% for G/S and 96% for G/S.

30. POWER ON Indicator Illuminates when applying ac or

battery power to the Test Set.

31. VOR BRG SELECT Switches Four thumbwheel switches select the

VOR bearing, in degrees, simulated by the Test Set. Valid range is 0

360.0

°.

° to

32. VOR BRG TO/FROM Switch Changes VOR bearing selected by

VOR BRG SELECT Switches to reciprocal bearing for flag tests, etc.

2.2 REAR PANEL

Refer to 1-2-2, Figure 2. ITEM DESCRIPTION

33. NAV TONE OUT Connector Provides audio output to test VOR

bearing circuits or deviation circuits of Localizer and Glide Slope Navigational Receivers. The MASTER MOD LEVEL Control varies the output level

≈0 to 7 V

into 1000 Ω. The

P-P

NAV TONE OUT Connector also provides access to the audio modulation of the Marker and COM signals by connecting internally to the Test Set Modulator.

34. SIG GEN DEMOD Connector Provides demodulated output of the

internal Signal Generator. The output, used for monitoring Test Set capability, can feed VOR and ILS Converters. If the available output voltage is adequate and the

≈+4.25 Vdc component is acceptable,

the output can drive a Converter.

35. PWR MON DEMOD Connector Provides access to the demodulated

output of a COM Transmitter connected to the COM XMTR IN Connector. The output can be used to display modulation on an oscilloscope or listen to modulation through an external amplifier.

36. FUSES Fuses input power to the Test Set.

Refer to Table 1-2-1, Table 1 for correct fuse size and type.

37. VOLTAGE SELECT Switch Selects 115 or 230 VAC to match

input ac power.

38. AC IN Connector Provides input for external ac power.

Refer to 1-2-1, para 1.5 for Power Requirements.

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3. GENERAL OPERATING PROCEDURES

OPERATION MANUAL IFF-701Ti

3.1 GENERAL

This section contains operating instructions for the NAV-402AP. The operating instructions contain general procedures, identifying the controls, connectors, indicators used for the individual test functions. For specific Unit Under Test (UUT) Procedures, refer to the appropriate UUT Manual.

CAUTION: WHEN OPERATING THE

TEST SET IN A VERTICAL POSITION, REMOVE THE LID TO PREVENT THE TEST SET FROM TIPPING OVER.

Refer to 1-2-2, Figure 2 for location of controls, connectors and indicators.

3.2 SIGNALS SIMULATED

The NAV-402AP is a bench and ramp test instrument for MARKER, VOR, ILS and COM equipment.

The NAV-402AP simulates MARKER signals with Inner (3000 Hz), Middle (1300 Hz) and Outer (400 Hz) tones.

VOR Ground Station signals are simulated by an RF signal modulated by a 30 Hz reference signal, a variable 30 Hz signal and a 9960 Hz signal.

Localizer (LOC) signals are simulated by modulating RF with 90 and 150 Hz tones.

Glide Slope (G/S) signals are simulated by modulating RF with 90 and 150 Hz tones.

COM signals are simulated by modulating RF with the 400, 1300 or 3000 Hz MARKER tones or the 1020 Hz IDENT tone. IDENT can also be applied to MARKER, VOR or Localizer signals.

3.3 OPERATION CAUTIONS

The NAV-402AP must be used in the following frequency fixed modes during ramp use:

● COM

● G/S

● LOC

● VOR

3.4 RAMP OPERATION

With the exception of Marker Beacon, most NAV COM systems of a typical avionics package can be checked when the Test Set is placed in a vertical position in the cockpit. The antenna is extended vertically 2-3 ft. With the antenna on the RF Output Connector, the VOR, LOC and G/S modes of NAV COM Receivers can be checked and indicators operated through the limits. The COM Receiver can also be operated, modulating the Test Set with either the 400, 1300 or 300 Hz tones or the 1020 Hz IDENT tone.

On some installations, the Marker Antenna is located far aft on the fuselage. When this occurs, and receiver sensitivity is low (-35 to -45 dBm), the Test Set situated in the cockpit radiates RF insufficient to operate the Receiver. Moving the Test Set outside the aircraft normally provides more than enough signal strength to completely check Marker audio and lights.

To check COM Transmitter frequencies from the cockpit, connect the COM Transmitter output to the COM Transmitter Input Connector and select MHz on the COUNTER MODE Switch. The Test Set reads out the COM Transmitter frequency when the COM Transmitter is keyed.

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OPERATION MANUAL IFF-701Ti

3.5 BENCH OPERATION

Bench testing dictates the use of direct coaxial cable connections between the Test Set and UUT. The Attenuator Dial readout is the RF level in dBm present at the RF OUT Connector into 50

Ω. To

conduct accurate sensitivity measurements, the loss in dBm of the connecting coaxial cables must be known.

CAUTION: MOST COM RECEIVER

ANTENNA CONNECTORS ARE ALSO USED FOR THE COM TRANSMITTER CONNECTOR. THE TRANSMITTER SHOULD BE KEYED ONLY WHEN THE COM ANTENNA CONNECTOR IS DISCONNECTED FROM THE TEST SET RF OUT CONNECTOR. DAMAGE TO THE ATTENUATOR AND SIGNAL GENERATOR SYSTEM MAY RESULT.

3.6 COUNTER OPERATION

With the TONE SELECT Switch in the CTR IN position, the Test Set Counter may be utilized as a general utility Counter. Frequencies from 1 to 300 MHz can be measured. The Counter Mode Switch can be used in any of the four time base positions: Hz, kHz, KHz or MHz.

3.7 BATTERY PARAMETERS

The battery permits completely portable ramp operation for up to two hours.

With the MONITOR METER FUNCTION switch in the BAT position, the MONITOR meter 0 to 30% scale displays battery voltage. Normal battery charged condition is indicated as

≥15 V or greater. Battery

voltage <12.5 V indicates a discharged battery. An automatic low voltage cutoff circuit turns the Test Set OFF when the battery voltage drops under 12.5 V.

NOTE: If the Test Set is used only for

bench operation, the battery can lose storage ability. The Test Set should be periodically operated on battery power to allow the battery to partially discharge.

3.8 OPERATE LOC AND G/S SIMULTANEOUSLY

To operate the LOC and G/S outputs simultaneously:

● Adjust all controls for normal G /S

operation (G/S FIXED mode, only). The Output Attenuator varies the RF level of the G/S signal, and G/S DDM controls vary the DDM of the G/S signal.

● Select LOC with the AVG/PEAK LO C

XMTR ON Switch to activate a separate Localizer generator in the Test Set. This generator output is combined with the G/S output at the RF Output Connector at the fixed level of -18 dBm (approx.). LOC DDM Controls vary the DDM of the Localizer signal.

In battery operation, an automatic timer turns the Test Set OFF after 6 to 10 minutes. The Test Set can be recycled by pressing the PWR/BAT Switch to the BAT position.

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3.9 MARKER OPERATION (TYPICAL CONTROL SETTINGS)

STEP PROCEDURE

1. MONITOR METER FUNCTION Switch

RF to verify proper leveling of internal Signal Generator on the MONITOR Meter.

100% to verify 95% modulation of Signal Generator on the MONITOR Meter.

2. FREQUENCY MODE Switch MKR FIXED is mandatory in ramp

operation and is used on bench for standard Marker center frequency.

MKR VAR Set VAR FREQ Controls to select the desired channel in 25 kHz steps.

3. COUNTER MODE Switch

STEP PROCEDURE

7. RF OUT Connector Connect to Receiver Antenna

Connector, or attach Antenna in ramp operation.

8. T ONE SELECT Switch Select desired tone: 1020 (Ident

tone), 400, 1300 or 3000 Hz.

9. MAST ER MOD LEVEL Control Set to CAL for 95% or variable from

3% to 96%.

10. PWR/BAT Switch PWR to use external ac line power

through the AC IN Connector. BAT to initiate operation using

internal battery.

GEN to read out the Signal Generator frequency on the DIGITAL Display when operating in fixed (FIXED) or variable (VAR) modes.

4. TUNE Control Adjust until TUNE Indicator stops

illuminating, indicating Signal Generator is in the fine tune range.

5. FINE TUNE Switch Press and adjust TUNE Control until

MONITOR Meter indicates least deflection from left.

6. OUTPUT ATTENUATOR Control Use as needed to establish Receiver

sensitivities.

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3.10 VOR OPERATION (TYPICAL CONTROL SETTINGS)

STEP PROCEDURE

1. MONITOR METER FUNCTION Switch

RF to verify proper leveling of internal Signal Generator on the MONITOR Meter.

30% or 100% to verify or set 30% modulation of each VOR modulating tone.

BRG to verify operation of bearing signal at 90

° (internally).

2. COUNTER MODE Switch GEN to read out the Signal

Generator frequency on the DIGITAL Display when operating in fixed (FIXED) or variable (VAR) modes.

3. FREQUENCY MODE Switch VOR FIXED is mandatory in ramp

operation and is used on bench for a fixed channel center frequency.

VOR VAR to check all channel bench operation. Set VAR FREQ Controls to select the desired channel in 25 kHz steps.

4. TUNE Control Adjust until TUNE Indicator stops

illuminating, indicating Signal Generator is in the fine tune range.

5. FINE TUNE Switch Press and adjust TUNE Control until

MONITOR Meter indicates least deflection from left.

6. OUTPUT ATTENUATOR Control

STEP PROCEDURE

8. T ONE SELECT Switch Select desired tone: 1020 (Ident

tone), 400, 1300 or 3000 Hz.

9. 30 H z VAR LEVEL Control Vary the 30 Hz modulation level from

0% to 30%.

10. 9.96 kHz REF LEVEL Control Vary the 9.96 kHz modulation level

from 0% to 30%.

11. MASTER MOD LEVEL Control Set to CAL for 30% for each VOR

tone or variable from 3% to 55% for each VOR tone.

12. PWR/BAT Switch PWR to use external ac line power

through the AC IN Connector. BAT to initiate operation using

internal Battery.

13. VOR BRG SELECT Switches Set to desired bearing for radial

testing and alignment.

14. VOR BRG TO/FROM Switch Set to obtain reciprocals of selected

bearings for Indicator flag tests.

15. CRYSTAL HI/LO Switch

(FREQUENCY MODE Switch set to

VOR FIXED) HI for 112.8 MHz RF output. LO for 108 MHz RF output.

Use as needed to establish Receiver sensitivities.

7. RF OUT Connector Connect to Receiver Antenna

Connector, or attach Antenna in ramp operation.

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OPERATION MANUAL IFF-701Ti

3.11 LOCALIZER OPERATION (TYPICAL CONTROL SETTINGS)

STEP PROCEDURE

1. MONITOR METER FUNCTION Switch

RF to verify proper leveling of internal Signal Generator on the MONITOR Meter.

30% to verify or set 20% modulation of each modulating tone and set course centering on the MONITOR Meter.

2. COUNTER MODE Switch GEN to read out the Signal

Generator frequency on the DIGITAL Display when operating in fixed (FIXED) or variable (VAR) modes.

3. FREQUENCY MODE Switch LOC FIXED is mandatory in ramp

operation and is used on bench for a fixed channel center frequency.

LOC VAR to check all channel bench operation. Set VAR FREQ Controls to select the desired channel in 25 kHz steps.

4. TUNE Control Adjust until TUNE Indicator stops

illuminating, indicating Signal Generator is in the fine tune range.

5. FINE TUNE switch Press and adjust TUNE Control until

MONITOR Meter indicates least deflection from left.

STEP PROCEDURE

6. OUTPUT ATTENUATOR Control Use as needed to establish Receiver

sensitivities.

7. RF OUT Connector Connect to Receiver Antenna

Connector, or attach Antenna in ramp operation.

8. T ONE SELECT Switch Select audio tone: 1020 (Ident

tone), 400, 1300 or 3000 Hz as desired.

9. LO C DDM Control Use steps for precise amounts of

deflection and flag tests.

10. LOC DDM/DDM SWEEP AMPLITUDE Control

Use to check Auto-pilot Servos, meter stickiness, etc. or to set DDM sweep amplitude.

11. LOC DDM SWEEP Switch

Use to select initial direction of DDM sweep.

12. MASTER MOD LEVEL Control

Set to CAL for 20% each course tone and 30% audio tone or variable from 3% to 35% each course tone and 3% to 55% audio tone.

13. PWR/BAT Switch

PWR to use external ac line power through the AC IN Connector.

BAT to initiate operation using internal Battery power.

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OPERATION MANUAL IFF-701Ti

3.12 GLIDE SLOPE OPERAT ION (TYPICAL CONTROL SETTINGS)

STEP PROCEDURE

1. MONITOR METER FUNCTION Switch

RF to verify proper leveling of internal Signal Generator on the MONITOR Meter.

100% to verify or set 40% modulation of each modulating tone and set course centering on the MONITOR Meter.

2. COUNTER MODE Switch GEN to read out the Signal

Generator frequency on the DIGITAL Display when operating in fixed (FIXED) or variable (VAR) modes.

3. FREQUENCY MODE Switch G/S FIXED is mandatory in ramp

operation and is used on bench for a fixed channel center frequency.

G/S VAR to check all channel bench operation. Set VAR FREQ Controls to select the desired channel in 50 kHz steps.

4. C RYSTAL HI/LO Switch (FREQUENCY MODE Switch set to G/S FIXED

HI for 334.7 MHz RF output LO for 329.6 MHz RF output.

5 TUNE Control

Adjust until TUNE Indicator stops illuminating, indicating Signal Generator is in the fine tune range.

STEP PROCEDURE

6. FINE TUNE switch Press and adjust TUNE Control until

MONITOR Meter indicates least deflection from left.

7. OUTPUT ATTENUATOR Control Use as needed to establish Receiver

sensitivities.

8. RF OUT Connector Connect to Receiver Antenna

Connector, or attach Antenna in ramp operation.

9. G /S DDM Control Use steps for precise amounts of

deflection and flag tests.

10. G/S VAR DDM Control Use to check Auto-pilot Servos,

meter stickiness, etc.

11. MASTER MOD LEVEL Control Set to CAL for 40% each course

tone or variable from 3% to 75%.

12. PWR/BAT Switch PWR to use external ac line power

through the AC IN Connector. BAT to initiate operation using

internal Battery power.

13. AVG/PEAK LOC XMTR Switch

(FREQUENCY MODE Switch set to

G/S FIXED)

PEAK LOC for simultaneous G/S and LOC output.

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OPERATION MANUAL IFF-701Ti

3.13 COMMUNICATION OPERATION (RECEIVER TESTS) (TYPICAL CONTROL SETTINGS)

STEP PROCEDURE

1. MONITOR METER FUNCTION Switch

RF to verify proper leveling of internal Signal Generator on the MONITOR Meter.

30% or 100% to verify or set 30% sine-wave modulation tone on the MONITOR Meter.

2. COUNTER MODE Switch GEN to read out the Signal

Generator frequency on the DIGITAL Display when operating in fixed (FIXED) or variable (VAR) modes.

3. FREQUENCY MODE Switch COM FIXED is mandatory in ramp

operation and is used on bench for a stable channel center frequency.

COM 25 KHz to check COM Receiver channels. Set VAR FREQ Controls as desired from 118.000 to

156.000 MHz, in 25 KHz steps. COM 8.33 KHz to check COM

Receiver channels. Set VAR FREQ Controls as desired from 118.000 to

156.000 MHz, in 8.33 kHz steps. (See Table 1)

4. VAR FREQ Controls (FREQUENCY MODE Switches set to COM 25 KHz or COM 8.33 KHz)

Use as needed to change COM frequency in 25 kHz steps or

8.33 kHz steps as determined by the frequency mode switch.

5. TUNE Control Adjust until TUNE Indicator stops

illuminating, indicating Signal Generator is in the fine tune range.

STEP PROCEDURE

6. FINE TUNE Switch Press and adjust TUNE Control until

MONITOR Meter indicates least deflection from left.

7. OUTPUT ATTENUATOR Control Use as needed to establish Receiver

sensitivities.

8. RF OUT Connector Connect to Receiver Antenna

Connector, or attach Antenna in ramp operation.

9. T ONE SELECT Switch Select audio tone: 1020, 400, 1300

or 3000 Hz as desired; or MOD IN to apply external modulation through MOD IN/EXT FREQ CTR IN Connector (bench testing only).

10. MOD IN/EXT FREQ CTR IN Connector (TONE SELECT Switch set to MOD IN)

Use to apply external modulation to Signal Generator.

11. MASTER MOD LEVEL Control

Set to CAL for 30% each tone or variable from 3% to 55%.

12. PWR/BAT Switch

PWR to use external ac line power through the AC IN Connector.

BAT to initiate operation using internal Battery power.

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OPERATION MANUAL IFF-701Ti

NOTE: Sequence repeats every 100 kHz,

from 118.000 MHz to

156.000 MHz.

LAST 2 DIGITS OF

DIGITAL DISPLAY

00 xxx.x0000 MHz 08 OR 09 xxx.x0833 MHz 16 OR 17 xxx.x1666 MHz

25 xxx.x2500 MHz

33 or 34 xxx.x3333 MHz 41 or 42 xxx.x4166 MHz

50 xxx.x5000 MHz

58 or 59 xxx.x5833 MHz 66 or 67 xxx.x6666 MHz

75 xxx.x7500 MHz

83 or 84 xxx.x8333 MHz 91 or 92 xxx.x9166 MHz

NOMINAL OUTPUT

FREQUENCY

Displayed Frequency vs Actual Nominal

Output Frequency in COM 8.33 KHz

Mode

Table 1

3.14 COMMUNICATION OPERATION (TRANSMITTER TESTS) (TYPICAL CONTROL SETTINGS)

STEP PROCEDURE

1. MONITOR METER FUNCTION Switch

10W or 100W to measure COM Transmitter power on the MONITOR Meter.

2. COUNTER MODE Switch HZ or KHZ to measure COM

Transmitter frequency as shown on the DIGITAL Display.

KHZ or MHZ to measure COM Transmitter frequency (in HF or VHF bands) as shown on the DIGITAL Display.

3. CO M XMTR IN Connector Connect to COM Transmitter output.

4. AVG /PEAK LOC XMTR Switch PEAK LOC for indicating increase in

power during modulation as shown on the MONITOR Meter.

AVG for indicating only average power on the MONITOR Meter, disregarding modulation.

5. T ONE SELECT Switch CTR IN to measure COM Transmitter

frequencies over the air through the MOD IN/EXT FREQ CTR IN Connector.

6. MO D IN/EXT FREQ CTR IN Connector (TONE SELECT Switch set to CTR IN)

Connect Whip Antenna for COM frequency measurements in portable operation.

7. PWR/BAT Switch PWR to use external ac line power

through the AC IN Connector.

BAT to initiate operation using internal Battery power.

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OPERATION MANUAL IFF-701Ti

DECIBELS VOLTS WATTS DECIBELS VOLTS WATTS

+40 dBw +39 dBw +38 dBw +37 dBw +36 dBw

+35 dBw +34 dBw +33 dBw +32 dBw +31 dBw

+30 dBw +29 dBw +28 dBw +27 dBw +26 dBw

+25 dBw +24 dBw +23 dBw +22 dBw +21 dBw

+20 dBw +19 dBw +18 dBw +17 dBw +16 dBw

+15 dBw +14 dBw +13 dBw +12 dBw +11 dBw

+10 dBw

+9 dBw +8 dBw +7 dBw +6 dBw

709 V 633 V 563 V 501 V 447 V

399 V 355 V 317 V 282 V 252 V

224 V 200 V 178 V 159 V 141 V

126 V 112 V 100 V

89.1 V

79.5 V

70.9 V

63.3 V

56.3 V

50.1 V

44.7 V

39.9 V

35.5 V

31.7 V

28.2 V

25.2 V

22.4 V

20.0 V

17.8 V

15.9 V

14.1 V

10.00 kW

7.94 kW

6.32 kW

5.00 kW

3.98 kW

3.16 kW

2.51 kW

2.00 kW

1.59 kW

1.26 kW

1.00 kW 794 W 632 W 500 W 398 W

316 W 251 W 200 W 159 W 126 W

100 W

79.4 W

63.2 W

50.0 W

39.8 W

31.6 W

25.1 W

20.0 W

15.9 W

12.6 W

10.0 W

7.94 W

6.32 W

5.00 W

3.98 W

+5 dBw

+4 dBw +3 dBw +2 dBw +1 dBw

+30 dBm +29 dBm +28 dBm +27 dBm +26 dBm

+25 dBm +24 dBm +23 dBm +22 dBm +21 dBm

+20 dBm +19 dBm +18 dBm +17 dBm +16 dBm

+15 dBm +14 dBm +13 dBm +12 dBm +11 dBm

+10 dBm

+9 dBm +8 dBm +7 dBm +6 dBm

+5 dBm +4 dBm +3 dBm +2 dBm +1 dBm

12.6 V

11.2 V

10.0 V

8.91 V

7.95 V

7.09 V

6.33 V

5.63 V

5.01 V

4.47 V

3.99 V

3.55 V

3.17 V

2.82 V

2.52 V

2.24 V

2.00 V

1.78 V

1.59 V

1.41 V

1.26 V

1.12 V

1.00 V 891 mV 795 mV

709 mV 633 mV 563 mV 501 mV 447 mV

399 mV 355 mV 317 mV 282 mV 252 mV

3.16 W

2.51 W

2.00 W

1.59 W

1.26 W

1.00 W 794 mW 632 mW 500 mW 398 mW

316 mW 251 mW 200 mW 159 mW 126 mW

100 mW

79.4 mW

63.2 mW

50.0 mW

39.8 mW

31.6 mW

25.1 mW

20.0 mW

15.9 mW

12.6 mW

10.0 mW

7.94 mW

6.32 mW

5.00 mW

3.98 mW

3.16 mW

2.51 mW

2.00 mW

1.59 mW

1.26 mW

Correspondence Chart for Decibels, Volts and Watts

Table 2

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OPERATION MANUAL IFF-701Ti

DECIBELS VOLTS WATTS DECIBELS VOLTS WATTS

+0 dBm

-1 dBm

-2 dBm

-3 dBm

-4 dBm

-5 dBm

-6 dBm

-7 dBm

-8 dBm

-9 dBm

-10 dBm

-11 dBm

-12 dBm

-13 dBm

-14 dBm

-15 dBm

-16 dBm

-17 dBm

-18 dBm

-19 dBm

-20 dBm

-21 dBm

-22 dBm

-23 dBm

-24 dBm

-25 dBm

-26 dBm

-27 dBm

-28 dBm

-29 dBm

-30 dBm

-31 dBm

-32 dBm

-33 dBm

-34 dBm

224 mV 200 mV 178 mV 159 mV 141 mV

126 mV 112 mV 100 mV

89 mV 79 mV

70.9 mV

63.3 mV

56.3 mV

50.1 mV

44.7 mV

39.9 mV

35.5 mV

31.7 mV

28.2 mV

25.2 mV

22.4 mV

20.0 mV

17.8 mV

15.9 mV

14.1 mV

12.6 mV

11.2 mV

10.0 mV

8.9 mV

7.95 mV

7.09 mV

6.33 mV

5.63 mV

5.01 mV

4.47 mV

1.00 mW 794 µW 632 µW 500 µW 398 µW

316 µW 251 µW 200 µW 159 µW 126 µW

100 µW

79.4 µW

63.2 µW

50.0 µW

39.8 µW

31.6 µW

25.1 µW

20.0 µW

15.9 µW

12.6 µW

10.0 µW

7.94 µW

6.32 µW

5.00 µW

3.98 µW

3.16 µW

2.51 µW

2.00 µW

1.59 µW

1.26 µW

1.00 µW 794 nW 632 nW 500 nW 398 nW

-35 dBm

-36 dBm

-37 dBm

-38 dBm

-39 dBm

-40 dBm

-41 dBm

-42 dBm

-43 dBm

-44 dBm

-45 dBm

-46 dBm

-47 dBm

-48 dBm

-49 dBm

-50 dBm

-51 dBm

-52 dBm

-53 dBm

-54 dBm

-55 dBm

-56 dBm

-57 dBm

-58 dBm

-59 dBm

-60 dBm

-61 dBm

-62 dBm

-63 dBm

-64 dBm

-65 dBm

-66 dBm

-67 dBm

-68 dBm

-69 dBm

3.99 mV

3.55 mV

3.17 mV

2.82 mV

2.52 mV

2.24 mV

2.00 mV

1.78 mV

1.59 mV

1.41 mV

1.26 mV

1.12 mV

1.00 mV 891 µV 795 µV

709 µV 633 µV 563 µV 501 µV 447 µV

399 µV 355 µV 317 µV 282 µV 252 µV

224 µV 200 µV 178 µV 159 µV 141 µV

126 µV 112 µV 100 µV

89.1 µV

79.5 µV

316 nW 251 nW 200 nW 159 nW 126 nW

100 nW

79.4 nW

63.2 nW

50.0 nW

39.8 nW

31.6 nW

25.1 nW

20.0 nW

15.9 nW

12.6 nW

10.0 nW

7.94 nW

6.32 nW

5.00 nW

3.98 nW

3.16 nW

2.51 nW

2.00 nW

1.59 nW

1.26 nW

1.00 nW 794 pW 632 pW 500 pW 398 pW

316 pW 251 pW 200 pW 159 pW 126 pW

Correspondence Chart for Decibels, Volts and Watts

Table 2 (cont)

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DECIBELS VOLTS WATTS

-70 dBm

-71 dBm

-72 dBm

-73 dBm

-74 dBm

-75 dBm

-76 dBm

-77 dBm

-78 dBm

-79 dBm

-80 dBm

-81 dBm

-82 dBm

-83 dBm

-84 dBm

-85 dBm

-86 dBm

-87 dBm

-88 dBm

-89 dBm

70.9 µV

63.3 µV

56.3 µV

50.1 µV

44.7 µV

39.9 µV

35.5 µV

31.7 µV

28.2 µV

25.2 µV

22.4 µV

20.0 µV

17.8 µV

15.9 µV

14.1 µV

12.6 µV

11.2 µV

10.0 µV

8.91 µV

7.95 µV

100 pW

79.4 pW

63.2 pW

50.0 pW

39.8 pW

31.6 pW

25.1 pW

20.0 pW

15.9 pW

12.6 pW

10.0 pW

7.94 pW

6.32 pW

5.00 pW

3.98 pW

3.16 pW

2.51 pW

2.00 pW

1.59 pW

1.26 pW

Correspondence Chart for Decibels, Volts and Watts

OPERATION MANUAL IFF-701Ti

Table 2 (cont)

1-2-3

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OPERATION MANUAL IFF-701Ti

LOCALIZER

TONE DIFFERENCE VALUES COURSE DEVIATION INDICATOR

% MODULATION

90 Hz 150 Hz DDM DECIBELS DEFLECTION µA

20.00 20.00 0 0 Centered 0

15.35 24.65 0.093 4.114 Standard 90

12.25 27.75 0.155 7.102 Full Scale 150

10.00 30.00 0.200 9.542 > Full Scale 194

0.00 40.00 0.4 Infinity Full One Tone, Delete Other 387

NOTE: Standard CDI Deflection = 60% of Full Scale (Linear Movement). NOTE: Deflections in µ A apply to Indicators with Full Scale Deflection Current of 150 µA.

Correspondence Chart for 90 Hz and 150 Hz Tones (LOC)

Table 3

GLIDE SLOPE

TONE DIFFERENCE VALUES COURSE DEVIATION INDICATOR

% MODULATION

90 Hz 150 Hz DDM DECIBELS DEFLECTION µA

40.00 40.00 0 0 Centered 0

35.45 44.55 0.091 1.988 Standard 78

31.25 48.75 0.175 3.622 Full Scale 150

20.00 60.00 0.400 9.542 > Full Scale 343

0.00 80.00 0.8 Infinity Full One Tone, Delete Other 686

NOTE: Standard G/S Indicator Deflection = 53% of Full Scale (Linear Movement). NOTE: Deflections in µ A apply to Indicators with Full Scale Deflection Current of 150 µA.

Correspondence Chart for 90 Hz and 150 Hz Tones (G/S)

Table 4

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OPERATION MANUAL IFF-701Ti

SECTION 3 - SPECIFICATIONS

1. NAV-402AP-3 SPECIFICATIONS

NOTE: A 15 minute warm-up period is required for all specifications

1.1 RF OUTPUT

Output Level Range: Continuously variable from -7 to -110 dBm Output Level Accuracy: ±3 dB from -30 to -110 dBm Output Frequency: MKR FIXED: 75 MHz MKR VAR: 72 to 78 MHz in 25 kHz steps VOR FIXED LO: 108 MHz VOR FIXED HI: 112.8 MHz VOR VAR: 107 to 120 MHz in 25 kHz steps LOC FIXED: 108.1 MHz LOC VAR: 107 to 120 MHz in 25 kHz steps G/S FIXED LO: 329.6 MHz G/S FIXED HI: 334.7 MHz G/S VAR: 327 to 337 MHz in 50 kHz steps COM FIXED: 126.9 MHz COM 25 kHz: 118 to 156 MHz in 25 kHz steps COM 8.33 kHz: 118 to 156 MHz in 8.33 kHz steps Frequency Accuracy: ± 0.002% Harmonics: ≥15 dBc ( Output Level -30 dBm) Broadband Noise: ≥70 dBc at ±50 kHz (Output Level -30 dBm)

300 Hz Resolution Bandwidth, 10 Hz Video Filter Auxiliary Localizer Transmitter: Output Level: -18 dBm (typical) independent of Output Attenuator setting Frequency: 108.1 and 110.5 MHz Frequency Accuracy: ±0.005%

1-3-1

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OPERATION MANUAL IFF-701Ti

1.2 MARKER MODE

Marker Tone Frequency Accuracy: 1020 Hz: ±1% 400 Hz: ± 1% 1300 Hz: ±1% 3000 Hz: ±1%

Marker Tone Demod Distortion

(9960 Hz Reference Level set to min): 1020 Hz: ≤2.5% 400 Hz: ≤ 2.5% 1300 Hz: ≤2.5% 3000 Hz: ≤2.5% Modulation: CAL: 95% AM ±5% for each tone Variable: 3% to 96% AM External CAL: 95% AM (typical)

(10 Hz to 20 kHz, 5 Vp-p input) External Variable: 3% to 96% AM (typical)

(10 Hz to 20 kHz, 5 Vp-p input)

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OPERATION MANUAL IFF-701Ti

1.3 VOR MODE

VOR Tone Frequency Accuracy: 30 Hz Reference: ±0.02% 30 Hz Variable: ±0.02% 9960 Hz: ±0.02% 1020 Hz: ±1% VOR Tone Demod Distortion: 30 Hz Variable: ≤2% 1020 Hz: ≤2.5% AM Modulation: CAL: 30% AM ±2% for each tone Variable: 3% to 55% AM External CAL: 30% AM (typical)

(10 Hz to 20 kHz, 5 Vp-p input) External Variable: 3% to 55% AM (typical)

(10 Hz to 20 kHz, 5 Vp-p input) FM Modulation: 30 Hz Reference at 480 Hz (± 25 Hz) Deviation on 9960 Hz Bearing: 359.9 digitally derived courses in 0.1° increments.

Accuracy ± 0.1°

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OPERATION MANUAL IFF-701Ti

1.4 LOC MODE

LOC Tone Frequency Accuracy: 90 Hz: ± 0.02% 150 Hz Variable: ±0.02% 1020 Hz: ±1%

LOC Tone Demod Distortion

(9960 Hz Reference Level set to min): 90 Hz: ≤ 2% 150 Hz: ≤ 2% 1020 Hz: ≤2.5% Modulation: CAL (90 Hz and 150 Hz): 20% AM ±2% for each tone CAL (Audio Tones): 30% AM ±2% for each tone Variable: 3% to 35% AM External Mod (CAL): 30% AM (typical)

(10 Hz to 20 kHz, 5 Vp-p input) External Mod Variable: 3% to 55% AM (typical)

(10 Hz to 20 kHz, 5 Vp-p input) LOC DDM: 0.093, 0.155, and 0.200 DDM and Tone Delete Accuracy: ±0.0013 DDM (±1.3 µ A) Variable DDM: ±0.4 DDM Phase Shift: 90 and 150 Hz tones phase locked to 5 times VOR Bearing

Select switch setting (refer to 1-3-1, Table 1)

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OPERATION MANUAL IFF-701Ti

1.5 G/S MODE

LOC Tone Frequency Accuracy: 90 Hz: ± 0.02% 150 Hz Variable: ±0.02% G/S Tone Demod Distortion

(9960 Hz Reference Level set to min): 90 Hz: ≤ 2% 150 Hz: ≤ 2% Modulation: CAL (90 Hz and 150 Hz): 40% AM ±2% for each tone Variable: 3% to 75% AM G/S DDM: 0.091, 0.175, and 0.40 DDM and Tone Delete Accuracy: ±0.0024 DDM (±2.0 µ A) Variable DDM: ±0.8 DDM Phase Shift: 90 and 150 Hz tones phase locked to 5 times VOR Bearing

Select switch setting (refer to 1-3-1, Table 1)

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OPERATION MANUAL IFF-701Ti

1.6 COM MODE

COM Tone Frequency Accuracy: 1020 Hz: ±1% 400 Hz: ± 1% 1300 Hz: ±1% 3000 Hz: ±1% COM Tone Demod Distortion

(9960 Hz Reference Level set to min): 1020 Hz: ≤2.5% 400 Hz: ≤ 2.5% 1300 Hz: ≤2.5% 3000 Hz: ≤2.5% Modulation: CAL: 30% AM ±2% for each tone Variable: 3% to 55% AM External Mod (CAL): 30% AM (typical)

(10 Hz to 20 kHz, 5 Vp-p input) External Mod Variable: 3% to 55% AM (typical)

(10 Hz to 20 kHz, 5 Vp-p input)

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OPERATION MANUAL IFF-701Ti

CAUTION: MAXIMUM INPUT POWER TO CO UNTER IS LIMITED TO 250 mW OR

+24 dBm. EXCEEDING THESE LIMITS MAY DAMAGE THE TEST SET.

1.7 EXTERNAL FREQUENCY COUNTER

Frequency Range: Hz, kHz: 1 to 10 MHz kHz, MHz: 10 to 300 MHz Resolution: Hz: 1 Hz kHz (1 to 10 MHz Range): 10 Hz kHz (10 to 300 MHz Range): 100 Hz MHz: 1 kHz Accuracy: ± 0.002% (Typically ±0.0005%) Sensitivity: 10 MHz: 0.08 Vrms (-9 dBm) 200 MHz: 0.15 Vrms (-3 dBm) 300 MHz: 0.23 Vrms (0 dBm) Impedance: 50 Ω AC terminated Maximum Input Level: ≤ 250 mW (+24 dBm)

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OPERATION MANUAL IFF-701Ti

1.8 POWER METER

Range: 0 to 100 W, 0 to 10 W Accuracy: ± 3% full scale ±5% of reading Duty Cycle: ≤20 W: Continuous >20 W to 40 W: 5 minutes on, 50% Duty Cycle >40 W to 80 W: 1 minute on, 20% Duty Cycle >80 W to 100 W: 0.5 minute on, 10% Duty Cycle

1.9 BATTERY LEVEL MONITOR

Range: 0 to 30 V Accuracy: ± 5% of reading

1.10 BEARING MONITOR

Range: ± 0.5° (0° at meter center)

1.11 BATTERY

Type: 2.0 AH NiCad Duration: ≈ 1.5 Hours Continuous

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OPERATION MANUAL IFF-701Ti

1.12 AC POWER

Input Range: 100 to 120 VAC, 60 Hz 220 to 240 VAC, 50 Hz

Power Consumption: 38 W Maximum 28 W Nominal at 115 VAC 22 W Nominal at 230 VAC

Fuse Requirements: 100 to 120 VAC: 1.0 A, 250 V, Type F 220 to 240 VAC: 0.5 A, 250 V, Type F Mains Supply Voltage Fluctuations: ≤±10% of the nominal voltage Transient Overvoltages: According to Installation Category II

1.13 ENVIRONMENTAL

Use: Pollution Degree 2 Altitude: ≤ 4000 meters (13,124 feet) Temperature: 5° to 40°C (41°F to 104°F) Relative Humidity: ≤80% for temperatures up to 31°C (88°F), decreasing

linearly to 50% at 40°C (104°F)

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OPERATION MANUAL IFF-701Ti

SETTING ON VOR BEARING

SELECT SWITCHES

000.0 0°

001.0 +5°

002.0 +10°

003.0 +15°

004.0 +20°

005.0 +25°

006.0 +30°

007.0 +35°

008.0 +40°

009.0 +45°

010.0 +50°

011.0 +55°

012.0 +60°

013.0 +65°

014.0 +70°

015.0 +75°

016.0 +80°

017.0 +85°

018.0 +90°

019.0 +95°

020.0 +100°

021.0 +105°

022.0 +110°

023.0 +115°

024.0 +120° or 0°

150 Hz PHASE

RELATIVE TO 90 Hz

VOR Bearing Select Switches

Table 1

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OPERATION MANUAL IFF-701Ti

VOR BRG

Switch Position

000.0

001.0

002.0

003.0

004.0

005.0

006.0

007.0

008.0

009.0

010.0

011.0

012.0

013.0

014.0

015.0

016.0

017.0

018.0

019.0

020.0

021.0

022.0

023.0

024.0

NOTE: +120° has the same Phase

Relationship as 0°; therefore, only 1° through 12° VOR BRG Switch positions are required.

150 Hz Phase

Relative to 90 Hz

0°

+5° +10° +15° +20° +25° +30° +35° +40° +45° +50° +55° +60° +65° +70° +75° +80° +85° +90° +95°

+100° +105° +110° +115°

+120° or 0° *

90 Hz and 150 Hz Tones Variable Phase Relationships

Table 2

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OPERATION MANUAL IFF-701Ti

SECTION 4 - SHIPPING

1. SHIPPING TEST SETS

1.1 INFORMATION

IFR Test Sets returned to factory for calibration, service or repair must be repackaged and shipped according to the following conditions:

AUTHORIZATION

Only return products to factory after first receiving authorization from IFR Customer Service Department.

CONTACT:

IFR Systems, Inc. Customer Service Telephone: 800-835-2350 FAX: 316-524-2623

TAGGING TEST SETS

All Test Sets must be tagged with:

● Identification and address of owner

1.2 REPACKING PROCEDURE

● Make sure bottom packing mold is seated on floor of shipping container.

● Carefully wrap Test Set with polyethylene sheeting to protect finish.

● Place Test Set into shipping container, making sure Test Set is securely seated in bottom packing mold.

● Place top packing mold over top of Test Set and press down until mold rests solidly in bottom packing mold.

● Close shipping container lids and seal with shipping tape or an industrial stapler. Tie all sides of container with break resistant rope, twine or equivalent.

● Nature of service or repair required

● Model Number

● Serial Number

SHIPPING CONTAINERS

Test Sets must be repackaged in original shipping containers using IFR packing molds. If original shipping containers and materials are unavailable, contact IFR Customer Service for shipping instructions.

FREIGHT COSTS

All freight costs on non-warranty shipments are assumed by the customer. (See “Warranty Packet” for freight charge policy on warranty claims.)

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OPERATION MANUAL IFF-701Ti

TOP PACKING MOLD

TEST INSTRUMENT WRAPPED WITH POLYETHYLENE

HOLD DOWN STRAP

SHEETING

BOTTOM PACKING MOLD

IFR SHIPPING CONTAINER

Repacking Procedure

Figure 1

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OPERATION MANUAL IFF-701Ti

SECTION 5 - STORAGE

1. STORING TEST SETS

Perform the following storage precautions whenever the Test Set is stored for extended periods:

● Disconnect Test Set from any electrical power source.

● Disconnect and store ac power cable and other accessories with Test Set.

● Cover Test Set to prevent dust and debris from covering and entering Test Set.

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OPERATION MANUAL IFF-701Ti

APPENDIX A - TABLE OF I/O CONNECTORS

CONNECTOR TYPE SIGNAL TYPE INPUT/OUTPUT

AC IN IEC320 ac Line Power INPUT RF OUT BNC RF OUTPUT COM XMTR IN BNC RF INPUT MOD IN/EXT FREQ CTR IN BNC RF/AUDIO INPUT NAV TONE OUT BNC SIG GEN DEMOD BNC PWR MON DEMOD BNC

AUDIO AUDIO AUDIO

OUTPUT OUTPUT OUTPUT

APPENDIX A

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APPENDIX B - METRIC/BRITISH IMPERIAL CONVERSION TABLE

WITH NAUTICAL DISTANCE CONVERSIONS

TO CONVERT: INTO:

cm feet

MULTIPLY BY:

0.03281

TO CONVERT: INTO:

meters feet

MULTIPLY BY:

3.281

cm inches

feet cm

feet meters

ft/sec km/hr

ft/sec knots

ft/sec miles/hr

ft/sec2 cm/sec2

ft/sec2 m/sec2

grams ounces

inches cm

kg pounds

kg/cm2 psi

km feet

3281

0.3937

30.48

0.3048

1.097

0.5921

0.6818

30.48

0.3048

0.03527

2.54

2.205

0.0703

meters inches

m/sec ft/sec

m/sec km/hr

m/sec miles/hr

miles feet

miles km

miles meters

miles nmi

miles/hr ft/sec

miles/hr km/hr

miles/hr knots

nmi feet

nmi km

39.37

3.281

3.6

2.237

5280

1.609

1609

0.8684

1.467

1.609

0.8684

6080.27

1.8532

km miles

km nmi

km/hr ft/sec

km/hr knots

km/hr miles/hr

knots ft/sec

knots km/hr

knots miles/hr

0.6214

0.5396

0.9113

0.5396

0.6214

1.689

1.8532

1.1516

nmi meters

nmi miles

ounces grams

pounds kg

psi kg/cm2

100 ft km

100 ft miles

100 ft nmi

1853.2

1.1516

28.34953

0.4536

0.0703

3.048

1.894

1.645

APPENDIX B

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APPENDIX C - ABBREVIATIONS

µA Microamperes µV Microvolts µW Microwatts

A Amperes AC, ac Alternating Current approx Approximate AVG Average

BAT Battery BRG Bearing

C Celsius or Centigrade CAL Calibration ccw Counterclockwise cm Centimeter COMM Communication CTR Center CW Continuous Wave cw Clockwise

dB Decibel dBm Decibel above

one Milliwatt

dBw Decibel relative to

one Watt

DDM Difference in Depth of

Modulation

EXT External

HF High Frequency HI High Hz Hertz

Ident Identification ILS Instrument Landing

System IN Input I/O Input/Output

kg Kilogram kHz Kilohertz kW Kilowatts

lbs. Pounds LO Local Oscillator LOC Localizer LOC DDM Localizer Difference in

Depth of Modulation

MKR Marker MHz Megahertz MOD Modulation mV Millivolts mW Milliwatts

NAV Navigation nW Nanowatts

FCC Federal Communications

Commission FM Frequency Modulation FREQ Frequency ft Feet

GEN Generate G/S Glideslope

OUT Output

pW Picowatts PWR Power

RF Radio Frequency

UUT Unit Under Test

APPENDIX C

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OPERATION MANUAL IFF-701Ti

V Volt VAC Volts Alternating Current VAR Variable Vdc Volts Direct C urrent VHF Very High Frequency VOR VHF Omnidirectional

Range

P-P Volts Peak-to-Peak

Vrms Volts Root-Mean-Square

W Watts w/o Without

XMTR Transmitter XTL Crystal

APPENDIX C

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OPERATION MANUAL IFF-701Ti

INDEX

90 Hz and 150 Hz Tones Phase Re lationships Table 1-2-3, p 13 1-3-1, p 3 Localiz er (LOC) 1-2 -3, p 12 Glide Sl ope (G/S) 1-2-3, p 12

Abbreviations App C, p 1 ac Power Requirem ents 1-2-1, p 2

Battery Charging 1-2-1, p 1 Operation 1-2-1, p 1 Parameters 1-2-3, p 2 Recharging 1-2-1, p 2 Bench Operation 1-2-1, p 3 1-2-3, p 2

Capabilities, Gen eral Description and 1-1-1, p 1 CAUTION and WARNING Labels 1-2-1, p 2 Charging, Batte ry 1-2-1, p 1 Communication Ope ration (Receiver) 1-2-3, p 7 Communication Ope ration (Transmitter) 1-2 -3, p 8 Complying with I nstructions 1-2-1, p 1 Controls, Connec tors and Indicators 1-2-2, p 2 Front Pa nel 1-2-2, p 4 Rear Pa nel 1-2-2, p 10 Correspondence Chart 90 Hz a nd 150 Hz Tones (LOC) 1-2-3, p 12 90 Hz a nd 150 Hz Tones (G/S) 1-2-3, p 12 Decib els, Volts and Watts 1-2-3, p 9 Counter Operati on 1-2-3, p 2

Description 1-1-1, p 1

External Cleaning 1-2-1, p 3

FCC Requirements 1-2-1, p 2 Functional Capabilities 1-1-1, p 1 Fuse Ratings, Speci fied 1-2 -1, p 2

General Description and Capabilities 1-1-1, p 1 General Operating P rocedures 1-2-3, p 1 Glide Slope Operati on 1-2-3, p 6 Grounding Power C ord 1-2-1, p 1 Indicators, Cont rols, Connectors and 1-2-2, p 2 Front Pa nel 1-2-2, p 4 Rear Pa nel 1-2-2, p 10 Input Power Versus Time Limits 1-3-1, p 7 Installation 1-2-1, p 1 I/O Connectors AC POWE R App A , p 1 RF OUT App A, p 1 COM XMTR I N App A, p 1 MOD IN/EXT FREQ CTR IN App A, p 1 NAV TONES DEMOD OUT App A, p 1 SIGNA L GENERATOR DEMOD OUT App A, p 1 COM XMTR DE MOD OUT App A, p 1

Localizer Operat ion 1-2-3, p 5 Low-Pass Filter Di agram 1-3-1, p 5

Marker Operation 1-2-3, p 3 Metric/British Imperial Conversion Table with Nautic al Distance Conve rsions App B, p 1

Operate LOC and G/S Si multaneously 1-2-3, p 2 Operation 1-2-1, p 1 Battery 1-2-1, p 1 Bench 1-2-1, p 3 1-2-3, p 2 CAUTIONS 1-2-3, p 1 Commun ication (Receiver) 1-2-3, p 7 Commun ication (Transmitt er) 1-2-3, p 8 Counter 1-2-3, p 2 Glide Sl ope 1-2-3, p 6 Localizer 1-2-3, p 5 Marker 1-2-3, p 3 Ramp 1-2-3, p 1 Safety 1-2-1, p 1 VOR 1-2-3, p 4

Parameters, Batt ery 1-2-3, p 2 Power Cord, Ground ing 1-2-1, p 1 Power Requirement s, ac 1-2-1, p 2

Ramp Operation 1-2-3, p 1 Recharging, Batt ery 1-2-1, p 2 Repacking Proced ure 1-4-1, p 1 Safety Precauti ons 1-2-1, p 1 Shipping Test Sets 1-4-1, p 1 Signals Simulate d 1-2-3, p 1 Specifications 1-3-1, p 1 AC Powe r Requirements 1-3-1, p 9 Battery 1-3-1, p 8 Beari ng Monitor 1-3-1, p 8 COM Mod e 1-3-1, p 6 Environmental 1-3-1, p 9 Ext ernal Frequency Counte r 1-3-1, p 7 G/S M ode 1-3-1, p 5 LOC Mode 1-3-1, p 4 Marker M ode 1-3-1, p 2 Powe r Meter 1-3 -1, p 8 RF Outp ut 1-3-1, p 1 VOR Mode 1-3-1, p 3 Specified Fuse Rati ngs 1-2-1, p 2 Storing Test Sets 1-5-1, p 1

VOR Operation 1-2-3, p 4

WARNING Labels, CA UTION and 1-2-1, p 2

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