f altitude, the time to CPA, and the separation at CPA. ?The TA shows for relatively longer times to CPA and relatively larger separation at CPA and is for intruder targets.?The RA shows for relatively shorter times to CPA and relatively smaller separation at CPA and is for threat targets.?The TA shows the range, bearing, and relative altitude of the intruder target. The RA also gives visual and aural commands to the flight crew to make sure there is safe vertical separation from the threat target.Р*РРThe TA/RA threshold values increase with the altitude??The bearing is not taken into account (only used for the display)??The TA or RA is issued depending upon the relevant thresholds??If the intruder does not transmit its altitude, there will be no RAРCPA: Closest Point of ApproachР*РGeneral
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