Highgear Aerial - Manual (Page 24)

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english
alTImeTer
Because the altiMeter system relies on Barometric Pressure for its measurements, it is critical that
you regularly calibrate the unit to a known altitude. For maximum accuracy, daily calibration is a must.
If you are using the unit during times of changeable weather, the unit may need to be calibrated more
often. Generally, the small pressure changes experienced during a day of use will have only a minor
effect on the accuracy of the unit, however, the arrival or departure of a weather front can change the
current weather display by several hundred feet or more.
set altiMeter
1. Start in altiMeter mode.
2. press & hold the s5 key to enter the setting sequence.
3. “real” will display on the screen. QuiCK press the s4 key and
the Current altitude will appear flashing in the center line of
the display
4. Adjust the current altitude up and down using the s1 and s2 keys.
5. Set the altitude and advance to Activating the Altitude Alarm using
the s4 key.
The Alterra / Aerial / ATF8 are equipped with an Altitude Alarm
which will sound to warn you if you exceed a preset altitude.
6. Turn the altitude alarM on or oFF using the s1 or s2 key.
7. Set your choice using the s4 key.
8. If you choose “on", the alarM altitude will appear flashing
in the center line of the display with alti and alM in the top and
lower lines.
9. Set the alarM altitude using the s1 key to increase and the
s2 key to decrease.
10. When the alarM altitude is active, a small icon ( ) will be
shown on the Altimeter screen. When active, the Altitude Alarm
will sound any time you exceed the programmed altitude.
11. Advance to the altitude MeMory displays using the s4 key.