BendixKing CAS 66A - Manual (Page 54)

GLOSSARY OF TCAS TERMS
ABBREVIATIONS AND DEFINITIONS
AFM or AFMS Airplane Flight Manual or Airplane Flight Manual
Supplement.
AGL Above Ground Level. Height above the ground.
ATC Air Traffic Control. A federally operated ground based system
that manages aircraft traffic flow.
ATCRBS ATC Radar Beacon System. A ground based secondary
radar and airborne transponder system used to monitor traffic.
Absolute Altitude The altitude shown on a traffic display is described
as Absolute whenever the FL mode has been selected. Otherwise,
TCAS displays the Relative Altitude between your own aircraft’s pres-
sure altitude and the encoded altitude of the Intruder aircraft.
Altitude Tag Data tag shown above or below threat symbol giving
the relative altitude of the Intruder.
BITE Built-In Test Equipment. A feature of TCAS that continuously
monitors itself for operational errors.
CPA Closest Point of Approach. CPA refers to predicted point at
which the Intruder will be closest to your own aircraft.
FLFlight Level. This is a TCAS mode that allows the annunciation of
Absolute Altitude on the traffic display. The traffic display will indicate
the altitude in hundreds of feet, I. E., 190 is 19,000 feet.
Indicated Altitude Altitude shown on the altimeter with barometric
correction setting set to local sea level pressure. Indicated altitude is
used by the crew below 18,000 feet but not used for TCAS process-
ing.
Intruder Any aircraft that is in the surveillance range of TCAS.
LRU Line Replaceable Unit. A self-contained avionics component
that can be replaced in the field.
Mode A Transponder ATCRBS transponder that replies to ATC
interrogations sending identification code but without giving altitude
data.
Mode C Transponder ATCRBS transponder that replies to ATC
interrogations giving identification code or encoded altitude data.
Appendix
50 Effective Date 6/94 006-08746-0000 Rev 2
TCAS I Pilots Guide 2/8/06 3:52 PM Page 50