Traffic Warning Window; Threat Acquisition; Audible And Visible Alerts; Fault Displays - Garmin GNC 420W Pilot's Manual Addendum

Section 4
Ryan TCAD Interface
Traffic Warning Window
When the Traffic page is not displayed and a
traffic threat becomes imminent, the Traffic Warning
Window will be displayed. The Warning Window
shows a small map and can display the Traffic Page (if
the user presses ENT) or return to the previous page
(if the user presses CLR).
Ryan TCAD Traffic Warning Window
NOTE: The Traffic Warning Window is disabled when
the aircraft ground speed is less than 30 knots or when
an approach is active.

Threat Acquisition

Please, see the TCAD Pilot' s Handbook.

Audible and Visible Alerts

Voice and tones are used to alert the pilot. The alert
descriptions used by TCAD are listed in the TCAD
Pilot' s Handbook. Voice is used only during the high-
est level of alerting; otherwise, tone is used. The voice
alerting can be turned on or off either on the TCAD
Setup Page or on the configuration pages. See the
Garmin 400W/500W Series Installation Manual avail-
able at your authorized Garmin Service Center (only
for the 9900 model).
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Fault Displays

If the 400W/500W Series unit fails to detect the
Ryan TCAD or if it detects invalid data from the
TCAD, the traffic screen will display the message, "NO
DATA".

Limitations

Please see the TCAD Pilot' s Handbook for limita-
tions of the TCAD system.