User's Manual

Galaxy G1 
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Chapter 3 Operations
Reading this chapter, you can grasp in detail how to use the G1 measurement to
do system static, RTK operations.
GPS measurement operation scheme refers to the operating scheme used to
determine the relative position between the stations with the help of GPS
technology. Point coordinate precision obtained is not the same; its operating
methods and observation time are also different, thus having different range of
applications. GNSS receiver operating program is divided into two types: static
measurement and RTK dynamic measurement (including the base station and
rover station).
Test environment requirements:
(1) Observation stations (ie, the receiving antenna settlements) should stay away
from high-power radio transmitters and high voltage transmission lines in order
to avoid the magnetic field around the GPS satellite signal interference. Receiver
antenna and its distance shall not be less than 200 m;
(2) Observation stations should not be near to the large area waters or objects
which can strongly reflect (or absorb) electromagnetic wave to weaken the
effects of multi-path;
(3) Observation stations should be located in places where the receiving device
can be installed easily, and good vision available. Elevation angle of obstacles in
view should generally be greater than 10° to 15°, in order to weaken the effects
of troposphere refraction;
(4)Observation stations should be selected in a convenient place, and easy to
use other means of measuring, joint measurement and expansion;
(5) For the long baseline GPS network, should also consider the vicinity good