Combining advanced AGPS called EASY™ (Embedded Assist System) and proven
AlwaysLocate™ technology, L70 achieves the highest performance and fully meets the
industrial standard. EASY™ technology ensures L70 can calculate and predict orbits
automatically using the ephemeris data (up to 3 days) stored in internal RAM memory, so L70
can fix position quickly even at indoor signal levels with low power consumption.
With AlwaysLocate™ technology, L70 can adaptively adjust the on/off time to achieve a
balance between positioning accuracy and power consumption according to the environmental
and motion conditions.
Howitworks
A constellation of satellites sends a continuous signal towards Earth. Onboard every satellite is
an atomic clock, and all of them are synchronized, thanks to a reference time scale defined by the
whole system. So, that the signals coming from the different satellites of the same constellation
share the same reference time scale.
The user wanting to use GPS to determine its position must have an antenna that receives the
signals coming from the satellites, and a receiver that translates these signals. The antenna
position will be deduced from the measurements of the time delay between the emission time
(satellite) and the reception time (receiver) for at least 4 signals coming from different satellites.
