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Description / Abstract:
Introduction
This document contains Minimum Operational Performance Standards
(MOPS) for airborne equipment for Automatic Dependent
Surveillance-Broadcast (ADS-B) and Traffic Information Service –
Broadcast (TIS-B) utilizing 1090 MHz Mode-S Extended Squitter
(1090ES). The supporting hardware can be incorporated within other
on-board equipment, or alternatively, the ADS-B equipment may be a
separate avionics unit.
Note: Definitions of acronyms (e.g.,
MOPS, ADS-B, 1090ES) and of many other terms (e.g., "Extended
Squitter") can be found in Appendix B of these MOPS. Throughout
this document, the term "TIS-B" refers to the Fundamental TIS-B
Service as defined in the TIS-B MASPS, RTCA/DO-286B, §1.4.1. The
acronym "ADS-R" refers to the ADS-B Rebroadcast Service as defined
in the TIS-B MASPS, RTCA/DO-286B, §1.4.1. The Fundamental TIS-B
Service provides traffic information that is derived from ground
surveillance (e.g., radar) systems. The ADS-B Rebroadcast Service
provides the Rebroadcast on 1090 MHz of an ADS-B Message from an
alternate data link using the same TYPE Codes and Message Formats
as are defined for Downlink Format (DF) = 17 ADS-B Messages, with
the exception of bits modified as identified in §2.2.18.
Compliance with these standards by manufacturers, installers and
users is recommended as one means of assuring that the equipment
will satisfactorily perform its intended functions under conditions
encountered in routine aeronautical operations. The regulatory
application of these standards is the responsibility of appropriate
government agencies. For example, in the United States, the Federal
Aviation Administration (FAA) publishes and maintains a Technical
Standard Order (TSO C166) for 1090ES ADS-B equipment to reference
the requirements and bench test procedures in Section 2 of this
document. In the European Union, the European Aviation Safety
Agency (EASA) publishes and maintains a Eurpoean Technical Standard
Order (ETSO C166) for 1090ES ADS-B equipment to reference the
requirements and bench test procedures in Section 2 of this
document.
Since the equipment implementation includes a computer software
package, the most recent version of the Software Considerations in
Airborne Systems and Equipment Certification, (RTCA DO-178B/EUROCAE
ED-12B) is applicable. When determining the level of software
requirements, as defined in RTCA DO-178B/EUROCAE ED-12B, or
subsequent versions, the equipment manufacturer should consider the
criticality appropriate for the installation certification,
equipment failure analysis, and the fault monitoring being
accomplished.
In addition, since the measured values of equipment performance
characteristics may be a function of the measurement method,
standard test conditions and methods of test are recommended in
this document.
Section 1 of this document provides information and assumptions
needed to understand the rationale for equipment characteristics
and requirements stated in the remaining sections. It describes
typical equipment applications and operational goals and, along
with RTCA DO-242A, Minimum Aviation System Performance Standards
for ADS-B, forms the basis for the standards stated in Sections 2
and 3.
Section 2 contains the minimum operational performance standards
for the equipment. These standards define required performance
under standard operating conditions and stressed physical
environmental conditions. Also included are recommended bench
test