Non-Threat Traffic; Proximity Intruder Traffic - Honeywell Bendix/King KTA970 Pilot's Manual

KTA 970/KMH 980 Pilot's Guide
No altitude number or trend arrow will appear beside any Intruder that is
Non-Altitude Reporting (NAR).
If TCAS I direction finding techniques fail to locate the azimuth of another
aircraft, a NO BEARING message appears on the screen when the
Intruder becomes a Traffic Advisory.

NON-THREAT TRAFFIC

+17

PROXIMITY INTRUDER TRAFFIC

+10
Rev 2
An open white diamond indicates that an Intruder's rela-
tive altitude is greater than ±1200 feet, or its distance is
beyond 5 nm range. It is not yet considered a threat.
This traffic is 1700 feet above your own altitude,
descending at 500 feet per minute or greater.
+1700 Ft. and
Descending
A filled white diamond indicates that the Intruding air-
craft is within ±1200 feet and within 5 nm range, but is
still not considered a threat.
This Intruder is now 1000 feet above your aircraft and
descending at 500 fpm or greater.
TCAS I Theory of Operation and Symbology
+1000 Ft. and
Descending
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006-18273-0000