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RTCA DO-185

Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance System II (TCAS II) – Change 2

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Organization: RTCA
Publication Date: 20 March 2013
Status: active
Page Count: 34
scope:

Improved efficiency of the TCAS surveillance function so as to reduce utilization of the 1030 and 1090 MHz channel without reducing the effectiveness of the equipment’s collision avoidance function.

Allows TCAS to implement a narrow band Mode S receive function compatible with the RTCA/DO-260B ADS-B receiver requirements without negatively impacting the TCAS receiver function.

Updates the flight test requirements to add Atlanta as an alternate location for high density Mode S flight testing and to modify the combined air and ground density requirement accordingly.

Decreases the TCAS RA broadcast interval from 8 seconds to 1 second to be compatible with the intended use of this data by ground controllers.

Clarifies the intent of interference limiting by adding text to the requirements and adding a new test.

Document History

RTCA DO-185
March 20, 2013
Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance System II (TCAS II) – Change 2
Improved efficiency of the TCAS surveillance function so as to reduce utilization of the 1030 and 1090 MHz channel without reducing the effectiveness of the equipment’s collision avoidance...
July 1, 2009
Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance System II (TCAS II)
Section 1 provides the text changes to Volume I. The change affects the "middle" aircraft of a multi-threat situation, and removes the feature that would have required a green arc to accompany that...
June 19, 2008
Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance System II (TCAS II)
This document provides Version Downloadable 7.1 of the TCAS II logic and sets forth the minimum operational performance standards for TCAS II equipment. The main changes are the enhancement of the...
December 16, 1997
Minimum Operational Performance Standards for Traffic Alert and Collision Avoidance System II (TCAS II) Airborne Equipment Volume I and Volume II
A description is not available for this item.

References

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