Garmin aera 795/796 Pilot’s Guide
190-01194-00 Rev. C
123
Hazard Avoidance
Overview GPS Navigation Flight Planning Hazard Avoidance Additional Features Appendices Index
TRAFFIC INFORMATION SERVICE (TIS-A)
NOTE:
Refer to Appendix F for general information regarding TIS-A. Refer to
Appendix D for configuration information.
The aera 795/796 supports TIS-A input from a Garmin Mode S transponder, such as
the GTX 330.
TIS-A SYMBOLOGY
TIS-A traffic is shown according to TCAS symbology, graphically shown on the
Navigation Map, and in the Traffic Warning Window. A Traffic Advisory (TA) symbol
appears as a solid yellow circle. All other traffic is shown as a hollow white diamond.
Altitude deviation from own aircraft altitude is shown above the target symbol if traffic
is above own aircraft altitude, and below the symbol if they are below own aircraft
altitude. Altitude trend is shown as an up arrow (>+500 ft/min), down arrow (<-500
ft/min), or no symbol if less than 500 ft/min rate in either direction.
TIS-A Symbol Description
Traffic Advisory (TA)
Other Traffic
TIS-A Traffic Symbols
TIS-A ALERTS
A TIS-A audio alert is generated whenever the number of Traffic Advisories on the
aera 795/796 screen increases from one scan to the next. Limiting Traffic Advisories
only reduces the “nuisance” alerting due to proximate aircraft. For example, when the
first Traffic Advisories appear on the TIS-A display, the user is alerted audibly. So long
as a single aircraft remains on the TIS-A display, no further audio alert is generated. If
a second (or more) aircraft appears on the screen, a new audio alert is sounded.
