9-20
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. P
Traffic
9.5.2.2
TCAS Status
This shows the current status of the TCAS system. The modes reported by
the traffic device are “Operate” while in the air and “Standby” while on the
ground. This control allows the pilot to manually select the TCAS Status.
Touch the
TCAS Status
key to toggle the TCAS Status.
9.5.2.3 Test
The Traffic Test function is only available on some TAS traffic systems. The
aircraft must be on the ground and traffic system must be in Standby.
1. Touch the
Test
key to activate the test function in the Traffic
equipment.
2. The unit will return to normal operation mode after the test
process is successfully completed.
9.5.2.4
Motion Vector
When Absolute Motion Vectors are selected, the vectors extending from the
traffic targets depict the target reported track and speed over the ground. When
Relative Motion Vectors are selected, the vectors extending from the traffic targets
display how the traffic target is moving relative to your aircraft. These vectors are
calculated using the traffic targets track and ground speed and your aircraft’s track
and ground speed. These two values are combined to depict where the traffic target
is moving purely with respect to your aircraft and give a forecast of where the traffic
target will be, relative to your aircraft, in the near future.
Selected Vector Type
Figure 9-12 Traffic Motion Vector Type Selection
NOTE:
Absolute motion vectors are colored either white or cyan. Relative
motion vectors are always green. The annunciation on the bottom of the
dedicated traffic page indicates which vector type is selected and their
length.
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