GPSMAP 495 Owner’s Manual
39
Aviation
Aviation Mode Pages >
Terrain Page
Setting Up the Terrain Page and Alerts
Use the Terrain Setup Page to set levels for terrain alerts, as well as
obstacles in or near your flight path.
Caution Elevation
Select the
Caution Elevation
. If the terrain or an obstacle is within
the
Caution Elevation
entered, the GPSMAP 495 provides an alert.
Look Ahead Time
The
Look Ahead Time
for Terrain and Obstacle Alerts determines
the time when an alert annunciation occurs. For example, if
120 seconds is selected, the GPSMAP 495 provides an alert up to
120 seconds before you reach the terrain or obstacle.
Alert Sensitivity
The three Alert Sensitivity settings (
Terrain
,
Obstacle
, and
Descent Rate
) determines what level of alerts are annunciated. The
GPSMAP 495 defaults to
High
sensitivity, which annunciates all
red and yellow alerts at the time set in
Look Ahead Time
.
Medium
sensitivity annunciates all of the red and the highest priority of
yellow alerts, and
Low
only annunciates red alerts.
To set up the Terrain Page:
1. On the Terrain Page, press
MENU
to access the Terrain Page
options menu.
2. Select
Set Up Terrain
, and press
ENTER
.
3. Use the
ROCKER
to select a field. Press
ENTER
for a list of
options. Use the
ROCKER
to select the desired option. Press
ENTER
to confirm your selection.
4. Press
PAGE
or
QUIT
to accept the changes and exit the Set Up
Terrain Page.
