Multi-Tech Systems CDMA Wireless Modem manual Position Determination Start Session Result +WPDSS

Chapter 13 – Position Determination (GPS) AT Commands

Position Determination Start Session Result +WPDSS

Description: This unsolicited command returns the position determination data.

Values:	<lat> & <lon>
	32-bit integer
	<time>
	64-bit integer
	<fix>
	2: 2D fix
	3: 3D fix
	<mask>
	bit 0: altitude valid
	bit 1: heading valid
	bit 2: velocity valid (e.g. 6 means heading and velocity valid)
	<altitude>
	16 bit integer
	<altitude uncertainty>
	byte
	<heading>
	16 bit unsigned integer
	<heading uncertainty>
	byte
	<velocity horizontal>
	16 bit unsigned integer
	<velocity vertical>
	8 bit signed integer
	<velocity uncertainty>
	byte

Syntax: Response Syntax: +WPDSS: <lat>,<lon>,<time>,<uncertainty>,<fix>,<mask>,<alt>,<alt_u>, <heading>,<ang_u>,<vh>,<vv>,<v_u>

Command	Possible Responses
AT+WPDSS=”P”	OK
Note: Ask for position only.	+WPDSS:#,#,#,#,2
	Note: Unsolicited result with position only.
AT+WPDSS=”PV”	OK
Note: Ask for position and velocity.	+WPDSS:#,#,#,#,2,6,#,#,#,#,#
	Note: Unsolicited result with heading and velocity.
AT+WPDSS=”PH”	OK
Note: Ask for position and height.	+WPDSS:#,#,#,#,3,3,#,#,#,#,#
	Note: Unsolicited result with altitude and heading.

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 92