Garmin Astro 220 Owner's Manual page 36

Viewing Points on the Plot
Select individual points on an elevation plot or a pressure
plot to view the elevation (or pressure) reading, the time
of day, and the date when the point was recorded.
To view points on a plot:
On the Altimeter page, press left or right on the
ROCKER to display crosshairs and scroll the
crosshairs across the plot.
The date, the time, and the altitude (or pressure) for
the point at the intersection are shown.
To view altitude points on the Map page:
1. On the Altimeter page, press the ROCKER to move
the red crosshairs to the point you want to view on the
map.
2. Press ENTER. The point is marked by the Map
Pointer with location coordinates, the compass bering,
and the distance from your current location.
Astro Dog Tracking System Owner's Manual
Changing Altimeter Settings
To change Altimeter settings:
1. On the Altimeter page, press MENU.
2. Select an option > ENTER:
Plot Over Time (or Plot Over Distance)–plots
•
time or distance against elevation. (This option
is available only when you are plotting elevation.
Pressure is plotted only against time.)
• View Elevation Plot (or View Pressure Plot)–
selects either an elevation plot or a barometric
pressure plot for a set period of time.
• Zoom Ranges–selects zoom ranges for elevation,
distance, and time for the View Elevation Plot
(page 30).
• Change Data Fields–selects the type of data
shown on the Altimeter page
• Reset–resets the elevation and maximum elevation
data (page 30).
• Calibrate Altimeter–calibrates the altimeter if you
know the elevation or pressure at your current
location (page 30).
GPS Applications
(page 28).