User's Manual

ZYM-GM7033-MF Production Data
------------------------------------------------------------------------------------------------------------------------------------------
Glead Electronics www.glead.com.cn P0.1 2021. 06. 07
8
2. Operational Characteristics
2.1. Initialization Setup
After the initial self-test is complete, the G-mouse will begin the process
of satellite acquisition and tracking. The acquisition process is fully
automatic and, under normal circumstances, will take approximately 35
seconds to achieve a position fix (15 seconds if ephemeris data is know).
After a position fix has been calculated, valid position and time
information will be transmitted over the output channel(s).
The G-Mouse utilizes initial data such as last stored position, data and
time as well as satellite orbital data to achieve maximum acquisition
performance. If significant inaccuracy exists in the initial data, or if the
orbital data is obsolete, it may take a long time to achieve a navigation
solution. The G-mouse Auto-locate feature is capable of automatically
determining a navigation solution without intervention from the host
system. However, acquisition performance can be improved if the host
system initialized the G-mouse following the occurrence of one or more
of the following events:
1)The GNSS receiver is not in use for more than 3 months or
transportation over distances further than 500 kilometers.
2)Failure of the external memory battery without system standby power.
2.2. Navigation
After the acquisition process is complete, the G-Mouse will begin
sending valid navigation information over its output channels. These data
include:
1) Latitude/longitude/altitude
2) Velocity
3) Date/time
4) Satellite ,receiver status and Error estimates