Absolute Altitude - Flytec Element Alto Manual

three altimeters called ALT1, ALT2, and ALT3, and you can manually set the sea level barometric
pressure. We will use the following definitions when explaining the altimeter functions:
A bsolute altitude – height above mean sea level (MSL)
GPS altitude – MSL altitude indicated by GPS satellites
Relative altitude – height above a known point such as an airfield
A GL A ltitude – height over the terrain directly below (above ground level)
QNH – the actual air pressure at sea level
Flight Level – altitude MSL, in hundred feet intervals, relative to the ISA pressure setting of 1013.25
hPa. FL17, for example, indicates that you are in the 1700' band, between 1650' and 1750' MSL
3.2.2

Absolute altitude

ALT1 is your altitude above Mean Sea Level (MSL). Toggle between displaying ALT1 and ALT2 by
pressing A1 / 2. ALT1 is automatically set to your GPS altitude as soon as the Element Alto acquires a
GPS signal. This altitude calibration means, of course, that the QNH pressure setting is also automatically
adjusted.
Adjusting altitude or pressure:
In order to adjust ALT1, make sure you have selected it to be displayed by pressing the A1 / 2 key.
1. Press and hold SET
2. Use the arrow keys to adjust the ALT1 value.
3. Confirm with OK.
If you DO know your present altitude, but you DO NOT know your QNH setting. For instance, you notice
a sign posted at the take-off giving the actual MSL elevation of the ramp. In this case, you might adjust
your ALT1 to match the sign. You will notice that adjusting the altitude setting will also cause a change
the QNH pressure setting.
If you DO NOT know your present altitude, but you DO know your barometric pressure. Perhaps you
have an aviation weather report giving the local QNH setting, or perhaps you have a setting from air
traffic control. In either case you can change ALT1 to reflect this pressure setting
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Long press to access ALT1 adjustments, short press to toggle
between ALT1 and ALT2.
Flight preparation 14