Altimeter; Qnh; Get From Gps; Time - Flymaster LIVE C User Manual

The Set Altimeter page, allows the user to adjusts the barometric altimeter. A barometric altimeter calculates
altitude based on atmospheric pressure , and should not be confused with the GPS altitude, which is
calculated based on satellite information. Since atmospheric pressure can vary substantially with
meteorological conditions, and so with time, the barometric altitude also varies according. In order to have
the correct altitude for a certain place the altimeter should be calibrated.

Altimeter -

Calibrating the altimeter can be achieved by entering the know altitude of the location. Entering
an altitude automatically calculates the QNH, which is the local barometric pressure adjusted to sea level.

QNH -

Alternatively, the altimeter can be calibrated by adjusting the QNH for the local, and time. Changing
the QNH will adjust the barometric altitude.
Altitude can also be set from the GPS.

Get from GPS -

Get from GPS field which can be set to Yes No or Auto. Adjusting this value to Yes will
make the LIVE C take the altitude from the GPS and adjust the altitude accordingly. The Yes is not stored in
the setting, since it is a one time only operation. The Get from GPS can also be set to Auto, with this value
being stored in the settings. When Auto is selected, after being turned On, the LIVE C will automatically set
the altimeter to the GPS altitude (once the a valid GPS signal exists), or whenever the pdop value is lower
than the previous one. Note that position dilution of precision (pdop) gives you an indication of how reliable
the GPS altitude is at the moment. The lower the pdop value the more accurate the position fix.

Time

The Time page allows the user to set the vario integration time, track log parameters, and the Universal
Coordinated Time (UTC) offset.

Vario integrator -

The Integrated vario is calculated by integrating the vertical speed during a period
of X seconds defined by this value. In the example, the integration period is 5 seconds (default value).

Track interval -

During a flight the LIVE C stores a track log point every track interval seconds. Track
recording starts automatically when the Flight Starts, or 30 seconds before if using FAI COMP mode.
However, when a task is active the LIVE C will store a track log point immediately as it enters a turn point
cylinder, Goal, or Start.

UTC offset -

Using GPS data, the LIVE C automatically adjusts the internal clock to the Universal
Coordinated Time (UTC). The user should adjust the UTC offset so that the time displayed by the LIVE C
matches the local time.
Page 69
Flymaster Live C User Manual