NARDA LR-01, Руководство пользователя, Страница: 105 / 194

Probes Manager operating instructions 4-27
4.2.10.1.3 Calibrations
Calibrations window allows to:
- set to zero the internal Altimeter reference,
- calibrate the internal Compass for more accuracy,
- set the internal Clock with the Time or Date of the PC.
The altimeter can be useful in applications where the height of
measurements are relevant, such as, for example, along antennas masts.
The Altimeter works in relative mode. It returns the difference, in
meters, from the height where the device was calibrated. it is a
barometric altimeter that allows higher accuracy, precision and
resolution than GPS. It must be considered that it is subject to
variations in atmospheric pressure and therefore it is necessary to
calibrate it at each different measurement session.