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SiRF LP, HS Bluetooth GPS GPS-6031-X7 Operating Manual Rikaline
Rikaline International Corp. 10F, 64, Kang-Ding Road, Taipei 108, Taiwan
Tel: ++886 2 2370 4688 Fax: ++886 2 2370 4686 E-Mail: info@rikaline.com.tw Web: www.rikaline.com.tw
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2. Operational characteristics
2.1 Initialization
Once you insert the battery into the housing, the GPS-6031-X7 is in standby mode and ready to work for
you. When you activate the Bluetooth function in your machine (PDA or PC) and get pairing with PGS-6031-X7,
you may start GPS function. As soon as the initial self-test is complete, the GPS-6031-X7 begins the process of
satellite acquisition and tracking automatically. Under normal circumstances, it takes approximately 90 seconds
to achieve a position fix at the first time, 45 seconds if ephemeris data is known. After a position fix has been
calculated, information about valid position, velocity and time is transmitted over the output channel.
The GPS-6031-X7 utilizes initial data, such as last stored position, date, time and satellite orbital data, to
achieve maximum acquisition performance. If significant inaccuracy exists in the initial data, or the orbital data
is obsolete, it may take more time to achieve a navigation solution. The GPS-6031-X7 Auto-locate feature is
capable of automatically determining a navigation solution without intervention from the host system. However,
acquisition performance can be improved when the host system initializes the GPS-6031-X7 in the following
situation:
1) Moving further than 1,500 kilometers.
2) Failure of data storage due to the inactive internal memory battery.
2.2 Navigation
After the acquisition process is complete, the GPS-6031-X7 sends valid navigation information over output
channels. These data include:
1) Latitude/longitude/altitude
2) Velocity
3) Date/time
4) Error estimates
5) Satellite and receiver status
The GPS-6031-X7 sets the default of auto-searching for real-time differential corrections in RTCM SC-104
standard format, with the message types 1, 5, or 9. It accomplishes the satellite data to generate a differential
(DGPS) solution. The host system, at its option, may also command the GPS-6031-X7 to output a position
whenever a differential solution is available.