RTCA DO 197 : A94 CHG NOT 1 97

Foreword
Statement by the Air Transport Association of America
Table of Contents
1.0 PURPOSE AND SCOPE
1.1 Introduction
1.2 Useful Range of a PWI-Operational Environment
1.3 Need for Cooperative Equipment
1.4 Contents of This Document
1.5 Operational Goals
1.5.1 Minimum Performance Active TCAS I System
1.5.2 Operational Enhancements to a Minimum Performance
       Active TCAS I
1.6 Assumptions and Limitations
1.6.1 Disadvantages of Providing a Longer Range Active
       TCAS I Capability
1.6.2 Transponder Population
1.7 Test Procedures
1.7.1 Environmental Tests
1.7.2 Bench Tests
1.7.3 Installed System Tests
2.0 ACTIVE TCAS I EQUIPMENT REQUIREMENTS AND TEST
       PROCEDURES
2.1 General Requirements
2.1.1 Airworthiness
2.1.2 General Performance
2.1.3 Federal Communications Commission Rules
2.1.4 Controls
2.1.5 Pilot Advisory Functions
2.1.6 Equipment Configuration
2.1.7 Active TCAS I Combined With Other Aircraft
       Systems
2.1.8 Effects of Test
2.2 Minimum Performance Standards - Standard
       Conditions and Signals
2.2.1 Definition of Standard Conditions
2.2.2 Receiver Characteristics
2.2.3 Active TCAS I Transmitter Characteristics
2.2.4 Signal Reception
2.2.5 Reduction of Multipath Interference
2.2.6 Interference Limiting
2.2.7 Control of Synchronous Interference
2.2.8 Surveillance Track Requirements
2.2.9 Bearing Estimation
2.2.10 Active TCAS I Antenna System
2.2.11 Aircraft Suppression Bus
2.2.12 Active TCAS I Pilot Interface
2.2.13 Computer Performance Validation
2.3 Equipment Performance - Environmental Conditions
2.3.1 Environmental Test Conditions
2.3.2 Detailed Environmental Test Procedures
2.4 Equipment Test Procedures
2.4.1 Definitions of Terms and Conditions of Test
2.4.2 Detailed Test Procedures
3.0 INSTALLED EQUIPMENT PERFORMANCE
3.1 Test Conditions
3.1.1 Power Input
3.1.2 Associated Equipment
3.1.3 Environment
3.1.4 Adjustment of Equipment
3.2 Equipment Installation
3.2.1 Equipment Accessibility
3.2.2 Display Visibility
3.2.3 Interference
3.2.4 Physical Installation
3.2.5 Aircraft Power Source
3.2.6 Transmission Lines
3.2.7 Altimetry
3.3 Minimum Installed Equipment Performance
       Requirements
3.4 Test Procedures for Installed Equipment
       Performance
3.4.1 Conformity Inspection
3.4.2 General Test Procedures
3.4.3 Flight Test Procedures
MEMBERSHIP
APPENDIX A

Defines traffic advice to the flight crew by alerting them to the presence of a nearby transponder - equipped aircraft and advising the crew where to look for that aircraft so it can be visually acquired and avoided if necessary.