Garmin GTX 345 Operator's Manual - Page 24

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Garmin GTX 345 Operator's Manual
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7-4
ENSTROM F-28F/280FX RFM SUPPLEMENT
b. An aural message issues when an alert becomes
active; for example, "Traffic! Two O'clock, Low, Two
Miles." Alerting parameters provide enough time
after an alert is generated to acquire the target and
maneuver the aircraft away from the conflicting
traffic. The alerting parameters consider:
Closure rate of each aircraft (ownship and target)
Altitude separation and trend
Speed
Angle
The GTN display will truncate traffic alerts to not
include bearing, distance, and relative altitude
information when less than 200 ft above the surface.
Also, the GTX will reduce the protected volume when
operating below 200 ft above the surface and less
than 60 kts groundspeed to minimize nuisance alerts
in airport areas while still providing traffic alerts on
other eligible ADS-B Out equipped aircraft. When in
the airport environment alerting envelope, aural
traffic alerts are shortened to "Traffic." There are no
traffic alerts when groundspeed is less than 10 knots
and within 50 feet of the ground.
Not all traffic is tracked by the GTX. The
flight crew
procedures to visually acquire and avoid
other aircraft. Do not rely on the GTX as the
sole means of detecting other aircraft.
c. On Scene Mode (via the GTN traffic page) changes
traffic alerting volumes for other ADS-B equipped
rotorcraft traffic. This allows helicopters to operate in
closer proximity to each other without excessive
nuisance alerts. On Scene Mode must be turned ON
and OFF by the pilot using the controls in the menu
of the GTN's traffic page. See the GTN pilot's guide
for more information.
Report No. 28-AC-081
This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional
Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website
for the current revision level of the Rotorcraft Flight Manual Supplement.
CAUTION
must use
"see and avoid"
Jan 15/19