SkyBean SkyDrop, User Manual, Page: 10 / 20

2.2.3. Alarm 2 (Lowest) warns pilot when sinking through
preset altitude. This alarm has to be lower than Alarm 1
(Low).
2.2.4. Alarm 3 (High) warns pilot when lifting through preset
altitude.
2.2.5. Reset value defines hysteresis of alarms. Actual altitude
has to reach at least this difference than alarm altitude to
re-activate alarm function (higher at low alarm or lower at
high alarm).
2.3. QNH1 value in hPa is pressure adjusted to mean sea level
for actual date and location according to local info service.
2.4. QNH2 value in hPa is pressure adjusted to mean sea level
for actual date and location according to local info service.
SkyDrop can store two different QNH values for flying in
wide altitude range, lower altitudes using GPS or adjusted
QNH value, or higher altitudes using standard QFE pressure
1013.25 hPa, what is default value of QNH2.
3. Logger
3.1. Enabled checkbox enables or disables GPS tracking.
3.2. Total time summarize air time of all flights. You can adjust
it, or even reset (lowering to zero).
3.3. Format of output file can be chosen IGC, KML or RAW.
3.4. Auto start/land submenu offers
3.4.1. State shows status of logger, can be waiting for takeoff,
flying or landed.
3.4.2. Start threshold defines altitude change within Timeout
time period, used for automatic takeoff detection.
3.4.3. Land threshold in meters defines maximum altitude
change within Timeout period to detect landing.