Transponder. A piece of equipment carried on board an aircraft to support the surveillance of that aircraft by secondary surveillance radar sensors. A transponder receives interrogation signals on 1030 MHz and replies on the 1090 MHz downlink frequency.
Traffic-To-Follow. A term used for CAVS which is used to refer to the aircraft preceding ownship.
Universal Access Transceiver (UAT). A wideband multipurpose data link intended to operate globally on a single channel with a channel signaling rate of just over 1Mbps. By design, UAT supports multiple broadcast services including FIS-B and TIS-B in addition to ADS-B. This is accomplished using a hybrid medium access approach that incorporates both time-slotted and random unslotted access.
Visual Separation on Approach (VSA). The CDTI is used to assist the flight crew in acquiring and maintaining visual contact during visual separation on approach. The CDTI is also used in conjunction with visual, out-the-window contact to follow the preceding aircraft during the approach. The application is expected to improve both the safety and the performance of visual separation on approach. It may allow for the continuation of visual separation on approach when they otherwise would have to be suspended due to the difficulty of visually acquiring and tracking the other preceding aircraft.
Velocity. The rate of change of position. Horizontal velocity is the horizontal component of velocity and vertical velocity is the vertical component of velocity.
Warning. The level or category of alert for conditions that require immediate flight crew awareness and immediate flight crew response.
2. Acronyms.
AC Advisory Circular (FAA) ADS-B Automatic Dependent Surveillance – Broadcast ADS-R Automatic Dependent Surveillance – Rebroadcast AFM Aircraft Flight Manual AIRB Basic Airborne AML Approved Model List ASA Aircraft Surveillance Applications ASAS Aircraft Surveillance Applications System ASSAP Airborne Surveillance and Separation Assurance Processing ASTC Amended Supplemental Type Certificate ATAS ADS-B Traffic Advisory System ATC Air Traffic Control ATCRBS Air Traffic Control Radar Beacon System ATS Air Traffic Services CDTI Cockpit Display of Traffic Information CAVS CDTI Assisted Visual Separation CFR Code of Federal Regulations CPDLC Controller Pilot Data Link Communication DCPC Direct Controller Pilot Communication EFIS Electronic Flight Instrument System EUROCAE European Organization for Civil Aviation Equipment EVAcq Enhanced Visual Acquisition FAA Federal Aviation Administration FIS-B Flight Information Services - Broadcast fpm Feet Per Minute ft Feet GNSS Global Navigation Satellite System GPS Global Positioning System ICAO International Civil Aviation Organization ID Identification 42
IFR Instrument Flight Rules ITP In-Trail Procedure kts Knots m meter (or “metre”), the SI metric system base unit for length MCDU Multi-Function Control and Display Unit MFD Multi-Function Display MHz Mega Hertz MOPS Minimum Operation Performance Standards (RTCA documents) N/A Not Applicable or No Change RA Resolution Advisory (TCAS II) RC Radius of Containment s second, the SI metric system base unit for time or time interval SAE Society of Automotive Engineers SBS Surveillance and Broadcast Services SC Special Committee SURF Basic Surface Situation Awareness TA Traffic Advisory (TCAS II) TAS Traffic Advisory System TCAS Traffic Alert and Collision Avoidance System TCAS I TCAS system that does not provide resolution advisories TCAS II TCAS system that provides resolution advisories TIS-B Traffic Information Service – Broadcast TSO Technical Standard Order UAT Universal Access Transceiver VSA Visual Separation on Approach WGS-84 World Geodetic System-1984 43
Appendix E Related Documents
1. FAA Documents.
AC 20-140( ), Guidelines for Design Approval of Aircraft Data Link Communication Systems Supporting Air Traffic Services (ATS).
AC 20-149 ( ), Installation Guidance for Flight Information Service Broadcast (FIS-B)
AC 20-151(), Airworthiness Approval of Traffic Alert and Collision Avoidance Systems
(TCAS II), Versions 7.0 & 7.1 and Associated Mode S Transponders AC 20-165(), Airworthiness Approval of Automatic Dependent Surveillance - Broadcast (ADS-B) Out Systems.
AC 20-165 ( ), Airworthiness Approval of Automatic Dependent Surveillance Broadcast (ADS-B) Out Systems AC 20-175 ( ), Controls for Flight Deck Systems.
AC 23.1309-1( ), System Safety Analysis and Assessment for Part 23 Airplanes.
AC 23.1311-1( ), Installation of Electronic Display in Part 23 Airplanes.
AC 25-11( ), Electronic Flight Displays.
AC 25.1302-1( ), Installed Systems and Equipment for Use by the Flightcrew.
AC 25-1309-1( ), System Design and Analysis.
AC 25.1322-1( ), Flightcrew Alerting AC 27-1( ), Certification of Normal Category Rotorcraft.
AC 29-2( ), Certification of Transport Category Rotorcraft.
AC 90-114( ), Automatic Dependent Surveillance-Broadcast (ADS-B) Operations.
AC 120-55 ( ), Air Carrier Operational Approval and Use of TCAS II
TSO-C118 ( ), Traffic Alert And Collision Avoidance System (TCAS) Airborne Equipment, TCAS- I.
TSO-C119( ),Traffic Alert and Collision Avoidance System (TCAS) Airborne Equipment, TCAS II With Optional Hybrid Surveillance.
TSO-C129( ), Airborne Supplemental Navigation Equipment Using the Global Positioning System (GPS).
TSO-C145( ), Airborne Navigation Sensors Using the Global Positioning System (GPS) Augmented by the Wide Area Augmentation System (WAAS).
TSO-C146( ), Stand-Alone Airborne Navigation Equipment Using the Global Positioning System (GPS) Augmented by the Wide Area Augmentation System (WAAS).
TSO-C147( ), Traffic Advisory System (TAS) Airborne Equipment.
TSO-C154c, Universal Access Transceiver (UAT) Automatic Dependent Surveillance Broadcast (ADS-B) Equipment Operating on the Frequency of 978 MHz.
TSO-C165a( ), Electronic Map Display Equipment for Graphical Depiction of Aircraft Position.
TSO-C166b, Extended Squitter Automatic Dependent Surveillance - Broadcast (ADS-B) and Traffic Information Service - Broadcast (TIS-B) Equipment Operating on the Radio Frequency of 1090 Megahertz (MHz).
TSO-C195( ), Avionics Supporting Automatic Dependent Surveillance - Broadcast (ADS-B) Aircraft Surveillance Applications (ASA).
TSO-C196( ), Airborne Supplemental Navigation Sensors for Global Positioning System Equipment Using Aircraft-Based Augmentation.
2. RTCA, Inc. (RTCA DO) Documents:
RTCA/DO-160, Environmental Conditions and Test Procedures for Airborne Equipment RTCA/DO-178C, Software Considerations in Airborne Systems and Equipment Certification.
RTCA/DO-185, Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance System II (TCAS II) Airborne Equipment RTCA/DO-208, Minimum Operational Performance Standards for Airborne Supplemental Navigation Equipment Using Global Positioning System (GPS).
RTCA/DO-229D, Minimum Operational Performance Standards for Global Positioning System/Wide Area Augmentation System Airborne Equipment.
RTCA/DO-247, The Role of the Global Navigation Satellite System (GNSS) in Supporting Airport Surface Operations.
RTCA/DO-254, Design Assurance Guidance for Airborne Electronic Hardware.
RTCA/DO-257A, Minimum Operational Performance Standards for the Depiction of Navigational Information on Electronic Maps.
RTCA/DO-260B, Minimum Operational Performance Standards for 1090 MHz Automatic Dependent Surveillance-Broadcast (ADS-B).
RTCA/DO-282B, Minimum Operational Performance Standards for Universal Access Transceiver (UAT) Automatic Dependent Surveillance-Broadcast (ADS-B).
RTCA/DO-306, Change 1. Safety and Performance Standard for Air Traffic Data Link Services in Oceanic and Remote Airspace (Oceanic SPR Standard).
RTCA/DO-316, Minimum Operational Performance Standards (MOPS) for Global Positioning System/Aircraft Based Augmentation System Airborne Equipment.
RTCA/DO-317B, Minimum Operational Performance Standards (MOPS) For Aircraft Surveillance Applications System (ASAS).
3. ARINC Documents:
ARINC 718A, Mark 4 Air Traffic Control Transponder (ATCRBS/MODE S).
ARINC 735B, Mark 2 Traffic Alert and Collision Avoidance System (TCAS).
ARINC 738A, Air Data and Inertial Reference System (ADRS).
ARINC 743A, GNSS Sensor.
4. SAE Documents.
SAE ARP 4754A, Guidelines for Development of Civil Aircraft Systems.
SAE ARP 4761, Guidelines and Methods for Conducting the Safety Assessment Process on Civil Airborne Systems and Equipment.
5. How to Get Related Documents:
a. You can get copies of the 14 CFR parts referenced in this AC online from the GPO electronic CFR Internet website at www.gpoaccess.gov/cfr/.
b. Order copies of RTCA documents from RTCA Inc., 1150 18th St. NW, Suite 910, Washington, D.C. 20036. For general information, telephone (202) 833-9339 or fax (202) 833 9434. You can also order copies online at http:/www.rtca.org.
c. Order copies of ARINC documents from ARINC Incorporated, 2551 Riva Rd., Annapolis, MD, 21401. Telephone 1-800-633-6882, fax (410)-956-5465.
You can also get copies from their website at www.arinc.com.
d. Order copies of SAE documents from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, telephone (724) 776-4970, fax (724) 776-0790. Also, order copies online at www.sae.org.
e. Order copies of advisory circulars from the U.S. Department of Transportation, Subsequent Distribution Office, M-30, Ardmore East Business Center, 3341 Q 75th Avenue, Landover, MD 20785. You can also get copies from our website at http://www.faa.gov/regulations_policies/advisory_circulars/ or www.airweb.faa.gov/rgl.
_________________________________________________________________ _________________________________________________________________ _________________________________________________________________ ________________________________________________________________ Appendix 1. Advisory Circular Feedback Information If you have comments or recommendations for improving this advisory circular (AC), or suggestions for new items or subjects to be added, or if you find an error, you may let us know about it by using this page as a template and 1) emailing it to 9-AWA-AVS-AIR500 Coord@faa.gov or 2) faxing it to the attention of the AIR Directives Management Officer at 202-267-3983.
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