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B
d. TAS Operation (Traffic Advisory) Mode
When the TAS Operation mode is selected, the TAS Processor shall perform
all the surveillance functions and shall provide for the generation of traffic
advisories . The information conveyed in the traffic advisories is intended to
assist the flight crew in sighting nearby traffic.
e. TAS Processor
The TAS Processor shall provide intruder surveillance and tracking, generat-
ing traffic advisories for both Altitude-Reporting and Non-Altitude-Reporting
intruders to display potential conflicts and advisories to the flight crew.
The TAS Processor shall track intruders under surveillance and analyze
range and range rate data, and altitude of the traffic to determine whether that
intruder represents a threat.
The TAS Processor shall also select "proximate traffic" and "other traffic"
intruders to be displayed on the basis of their altitude relative to own aircraft.
The "other traffic" intruders are those that do not qualify to be TA or proximate
traffic but are displayed.
Optional (The TAS Processor may be controlled using discrete inputs).
C. Options
1. Display Option
TSO C151a-Class B does not require a display for terrain data, however, if at
all possible, terrain data should be displayed for the aircraft operator. The ter-
rain display greatly improves situational awareness. The EGPWS supports
numerous displays including traditional Radar displays as well as mode mod-
ern MFD's.
Installations, which include a display, will also need to provide the EGPWS
with range data via ARINC 429 format.
2. Altitude Monitor Option
The EGPWS has the ability to monitor altitude sources and provide caution-
ary messages should an altitude source be suspected of being in error.
Rev 3, August/2002
NOTE
10609I03.CDL
KMH 880/KTA 870
Page 1-8
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