di-GPS Eco ProSumer PS10-M User Manual page 11

RECORDING GPS DATA (III)
Each satellite broadcasts a digital message that contains two types of information. One type is
ephemeris data, which includes the assigned serial number of the satellite, the status of the satellite
(healthy or faulty), current date and time. The second type is almanac data which includes precise
orbital position of every satellite in the system.
At the initial stage, ECO PS10-M GPS needs all these data for the position fixed. It usually takes a
minute to few minutes to receive all data. An open sky outdoor environment will enable faster
acquisition process. It will take a longer time at a weak signal environment. Once Eco PS10-M GPS
locks to the satellites, it will take a few seconds for reacquisition even at weak signal environment.
The EASY™ function is Embedded Assist System for quick positioning. Eco PS10-M GPS will calculate
and predict automatically the single emperies (Max. up to 3 days) when power on, and save the
predict information into the memory, Eco PS10-M GPS will use these information for positioning if no
enough information from satellites, this function will be helpful for positioning weak signal
environment.
Before the EASY™ function works properly, Eco PS10-M GPS needs to collect enough information
from satellites. The GPS usually needs 1-2 minutes to collect all information from satellites after the
first fix. Please let the GPS turn on for 1-2 minutes after the first fix for the first time of use.
Eco PS10-M GPS has a memory backup capacitor inside. The capacitor can provide about two
minutes power to the internal memory after disconnect from the camera of changing battery. To
avoid the lost of ephemeris data in the internal memory, Eco PS10-M GPS should be connected to the
camera all the time. The internal memory only consumes a very small amount of energy, it will not
affect the battery life of the camera. As the ephemeris data only be good for 3 days maximum, Eco
PS10-M GPS should be disconnected from the camera if the camera will not be used for a long period
of time.
DI-GPS® IS A REGISTERED TRADEMARK OR A TRADE MARK OF DAW N TECHNOL OGY LIMITED.
NIKON D2HS, D2X, D2XS, D200, D3, D3S, D3 X, D300, D300S, D600, D700, D800, D90, D3100, D3200, D5000,
D5100, D7000, D7100 AND P7700 ARE REGIST ERED TRADEMARK OR A TRADEMARK OF NIKON
CORPORATION IN THE U NITED STATES AND/OR OTHER COUNTRIES.
FUJIFILM AND S5 PRO ARE REGISTERED TRADEMARK OR A TRADEMARK OF FUJIFIL M U.S.A., INC. IN TH E
UNITED STATES AND/OR OTHER COUNTRIES.
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