Garmin GDL 88 Series Pilots Guide - Page 25

GDL 88 Integration with TCAD/TAS/TCAS

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When less than 15 knots, groundspeed ADS-B traffic is not provided to the display for display purposes. Aural traffic alerts will be issued as appropriate. If an active traffic system (TAS/TCAS) is interfaced to the GDL 88 then: • TAS/TCAS traffic targets will continue to be provided to the display at all speeds. • If in backward or sideward flight in excess of 15 knots, TAS/TCAS and ADS-B tagets will not correlate and two targets will appear on the display for each actual target being received over both ADS-B and TAS/TCAS. If a traffic alert is received under these conditions then two alerts will be generated. 4.2.2 GDL 88 Integration with TCAD/TAS/TCAS I Figure 4-4 GDL 88 With TCAS Not In Ground Station Coverage When an active traffic system is interfaced with a GDL 88, the GDL 88 receives traffic from the active traffic system and attempts to match (or "correlate") this traffic with ADS-B traffic that the GDL 88 is tracking. When a correlation is made, the target with the most accurate information is displayed to the flight crew. Any active traffic system or ADS-B traffic that is not correlated is also displayed for the flight crew. The correlation of traffic by the GDL 88 ensures that only the most accurate, and no duplicate, traffic targets are displayed for the flight crew's situational awareness. 190-01122-03 Rev. E Garmin GDL 84/88 ADS-B Transceiver Pilot's Guide 4-5

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4-5
190-01122-03
Rev. E
Garmin GDL 84/88 ADS-B Transceiver Pilot’s Guide
When less than 15 knots, groundspeed ADS-B traffic is not provided to the
display for display purposes. Aural traffic alerts will be issued as appropriate.
If an active traffic system (TAS/TCAS)
is interfaced to the GDL 88 then:
• TAS/TCAS traffic targets will continue to be provided to the display at all
speeds.
• If in backward or sideward flight in excess of 15 knots, TAS/TCAS and
ADS-B tagets will not correlate and two targets will appear on the display
for each actual target being received over both ADS-B and TAS/TCAS. If
a traffic alert is received under these conditions then two alerts will be
generated.
4.2.2
GDL 88 Integration with TCAD/TAS/TCAS I
Figure 4-4
GDL 88 With TCAS Not In Ground Station Coverage
When an active traffic system is interfaced with a GDL 88, the GDL 88 receives
traffic from the active traffic system and attempts to match (or “correlate”) this
traffic with ADS-B traffic that the GDL 88 is tracking. When a correlation is made,
the target with the most accurate information is displayed to the flight crew. Any
active traffic system or ADS-B traffic that is not correlated is also displayed for
the flight crew. The correlation of traffic by the GDL 88 ensures that only the
most accurate, and no duplicate, traffic targets are displayed for the flight crew’s
situational awareness.