BendixKing KMH 920 System KMH 980 - Manual (Page 40)

Rev 2
KTA 970/KMH 980 Pilot’s Guide
006-18273-0000
TCAS I Appendix
32
GLOSSARY OF TCAS I 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 I 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 I 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.
EGPWS Enhanced Ground Proximity Warning System.
FL Flight Level. This is a TCAS I 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.
GA General Aviation.
Indicated Altitude Altitude shown on the altimeter with barometric cor-
rection setting set to local sea level pressure. Indicated altitude is used
by the crew below 18,000 feet but not used for TCAS I processing.
Intruder Any aircraft that is in the surveillance range of TCAS I.
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 inter-
rogations sending identification code but without giving altitude data.
Mode C Transponder ATCRBS transponder that replies to ATC inter-
rogations giving identification code or encoded altitude data.