Landing Zone Elevation Differs From That Of The Airport - Larsen & Brusgaard PROTRACK II Manual

20 - Landing Zone elevation differs from that of the airport

1: Perform Manual Zeroing in the airplane at Landing Zone elevation,
or
2: Compensate by adjusting the warning altitudes accordingly,
or
3: Program new altitude Offset.
See section 10
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21 - Prior to Jumping
When powered ON, the PROTRACK II continually adjusts to the local elevation.
Prior to jumping the PROTRACK II should be in Ground Mode.
If the PROTRACK II is in Flight Mode and does not show the correct altitude (or your
selected altitude offset) it must be manually zeroed, as follows:
Switch OFF the PROTRACK II and turn it ON again.
The PROTRACK II will calibrate itself to the local elevation.
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