40
Menu Page
Calibration Page
Calibrating the Compass and Altimeter
The ‘CALIBRATE’ selection on the MENU Page allows the Electronic Compass and the
Altimeter to be calibrated for the most accurate performance.
The procedure for calibrating the Electronic Compass is covered on page 2. The compass
must be calibrated every time that the batteries are changed. The compass will not be accu-
rate if used in a car or around items radiating magnetic fields. When using the compass, hold
the unit as level as possible for optimum performance.
The eTrex Summit calibrates the altimeter automatically using GPS altitude. If you know
the exact current elevation or barometric pressure, you can calibrate the altimeter manually.
To manually calibrate the altimeter:
1. With the MENU Page displayed, highlight ‘CALIBRATE’ and press
ENTER
.
2. Press the
UP
or
DOWN
button to highlight ‘ALTIMETER’, then press
ENTER
.
3. The message ‘DO YOU KNOW THE CORRECT ELEVATION?’ is displayed. Press the
UP
or
DOWN
button to select ‘YES’ or ‘NO’, then press
ENTER
.
4.
If you selected ‘YES’
— the ENTER CORRECT ELEVATION Page is displayed. Press the
DOWN
button to move the highlight to the next number in the elevation field. With the
desired digit selected, press
ENTER
to activate the drop down number list. Press the
UP
or
DOWN
button to select the correct number, then press
ENTER
. When all numbers are
entered correctly, highlight ‘OK’ and press
ENTER
. A message ‘CALIBRATION COM-
PLETED SUCCESSFULLY’ is displayed. Highlight ‘OK’ and press
ENTER
.
If you selected ‘NO’
—you will be asked ‘DO YOU KNOW THE CORRECT BAROMETRIC
PRESSURE’. Press the
UP
or
DOWN
button to select ‘YES’ or ‘NO’, then press
ENTER
.
If you selected ‘YES’
— the ENTER CORRECT PRESSURE Page is displayed. Use the
DOWN
button to move the highlight to the next number in the pressure field. With the
desired digit selected, press
ENTER
to activate the drop down number list. Press the
UP
or
DOWN
button to select the correct number, then press
ENTER
. When all numbers are
entered correctly, highlight ‘OK’ and press
ENTER
. A message ‘CALIBRATION COM-
PLETED SUCCESSFULLY’ is displayed. Highlight ‘OK’ and press
ENTER
.
The eTrex Summit can automatically calibrate the altimeter
using GPS altitude. For optimum performance of the
Altimeter, you should perform the calibration procedure
entering either the correct elevation or barometric pressure.
Calibration Page
Summary of Contents for eTrex Summit - Hiking GPS Receiver
Page 1: ...owner s manual eTrex Summit personal navigator ...
Page 79: ......
