User's Manual

TR-151A page 46
4.13.2 SMS Configuration _ Maximum GPS Fixing Time
Report type Format Return message
Maximum GPS
fixing time
?7,IMEI,2,Maximum_GPS_Fixing_Time,
Return_Phone_Number!
?7,IMEI,OK!
The description of SMS
Format Description
?7 Start sign and function code
IMEI IMEI of TR-151A
2 Setting code for Maximum GPS fixing time
Maximum_GPS_Fixing_Time
The time that allows for GPS fixing. If GPS fixing is not achieved within the
time, it will close GPS and send back the previous location info.
Return_Phone_Number
The confirmed SMS sent to the phone number to indicate the setting is
successful.
! End sign
Example: To configure Maximum GPS fixing time to 5 minutes and send confirmed SMS to 626-123456.
?7,355632000166323,2,5,626123456!