Huawei MC509 manual POSITION-Command for Reporting Position Result

HUAWEI MC509 CDMA LGA Module
AT Command Interface Specification	GPS Commands

14.6.2Interface Description

This command is used to end GPS position session. If there is no active session, this command will return error.

14.6.3Parameter Description

<err>: error code or error description

Error code	Error description
4	Operation not supported
276	GPS function disabled
284	PD session is in off status

14.7^POSITION–Command for Reporting Position Result

14.7.1 Syntax

Command	Possible Response(s)
	<CR><LF>^POSITION: <long>,<lat>,<alt><CR><LF>

14.7.2Interface Description

This command reports the position result to user. The report interval is related to fix rate. If the time between fix ≥ 3s, it won‟t limited the report interval, or it will report the first fix result, then report once after three fixes.

14.7.3Parameter Description

All the default parameters below are 0

<long>: longitude, in the range from -180 degrees to +180 degrees, referenced to the WGS-84 reference ellipsoid, counting positive angles east of the Greenwich meridian and negative angles west of the Greenwich meridian.

<lat>: latitude, in the range from -90 degrees to +90 degrees, referenced to the WGS-84 reference ellipsoid, counting positive angles north of the equator and negative angles south of the equator.

<alt>：altitude, height of MS above the WGS 84 reference ellipsoid in units of 1 meter, ranging from -500 m to 15883 m, where the field value conveys the height plus 500 m, positive is above the horizontal and negative is under the horizontal.

（Because of the bug of GPS system, the altitude is not accurate）

Issue 01 (2011-08-26)	Huawei Proprietary and Confidential	140
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