User manual

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147A. Literally all features of the logic are implemented with the
exception of TCAS/TCAS resolution advisory (RA) negotiation and
Mode S ground stations.
Traffic Display Symbology
Both color and shape are used to assist the pilot in interpreting the
displayed information.
The own aircraft is depicted as either a white or cyan arrowhead or
airplane-like symbol. The location of the own aircraft symbol on the
display is dependent on the display implementation. Other aircraft are
depicted using geometric symbols, depending on their threat status, as
follows:
An unfilled diamond, shown in either cyan or white, but not
the same color as the own aircraft symbol, is used to depict
non-threat traffic.
A filled diamond, shown in either cyan or white, but not the
same color as the own aircraft symbol, is used to depict Proxi-
mate Traffic. Proximate Traffic is nonthreat traffic that is within
6 nmi and ±1200 ft from own aircraft.
A filled amber or yellow circle is used to display intruders that
have caused a TA to be issued.
A filled red square is used to display intruders that have caused
an RA to be issued.
Each symbol is displayed on the screen according to its relative position
to own aircraft. To aid the pilot in determining the range to a display-
ed aircraft, the traffic display provides range markings at one-half the
selected scale and at the full scale. The selected display range is also
shown on the display. The range markings and range annunciation are
displayed in the same color as the own aircraft symbol.
Vertical speed information and altitude information are also provided
for all displayed traffic that are reporting altitude. Relative altitude
is displayed in hundreds of feet above the symbol if the intruder is
above own aircraft and below the symbol if the intruder is below own
aircraft. When the intruder is above the own aircraft, the relative alti-
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