Table 3B-105. TV-920 Transponder/TCAS Displays (Continued)
Range Ring (White)
Two-mile radius range about aircraft. If no bearing message is displayed only
the forward half of ring will be displayed.
Solid Square (Red)
Threat-level intruder; RA generated; range and bearing relative to own aircraft.
Solid Circle (Yellow)
Potential threat-level intruder; TA generated; range and bearing relative to own
Solid Diamond (Cyan)
Proximate traffic within ±1200 ft and 6 nm of own aircraft.
Open Diamond (Cyan)
Other traffic; beyond 6 nm and/or greater than ±1200 ft from own aircraft.
Relative or absolute (flight level) altitude of intruder. If altitude is not available,
data tag is not displayed.
Vert speed trend arrow
Arrow indicating direction of vertical speed change (>500 fpm) of intruder.
Off scale or out of range RA or TA intruder; symbol at periphery of display at
bearing to intruder.
Figure 3B-144. TVI-920 Transponder/TCAS Mode/Warning Flags and Messages