- 19 -
data=1~65535, set interval for heartbeat.
In this example, the tracker will send heartbeat every 10 minutes.
Heading Change Report
W******,036,degree
W000000,036,90
Remarks: when the heading direction of the tracker changes over the preset degree, a message with location data will be sent
back to the server by GPRS.
degree=0, to turn off this function.
degree=[1,360], to set degree of direction change.
For more information regarding GPRS tracking please refer to <GPRS Communication Protocol>
Sleep Mode
W******,021,XX###
W000000,021,02###
Remarks: this setting is for power saving.
XX=00 turn off sleep mode
XX=01 Level I
XX=02 Level II
###
is the ending character
Here is some explanation for the sleep mode. First, assume that the GPS acquisition time is ONE minute.
[1] In Level I
The GPS module will be working for the first three minutes (i.e. 3 times of acquisition time) and then shut down for ONE minute
(i.e. equivalent to acquisition time), and then work again for another three minutes……
[2] In Level II
The GPS module will be working for the first two minutes (i.e. twice of acquisition time) and then shut down for ONE minute (i.e.
equivalent to acquisition time), and then work again for another two minutes……
Power Down
W******,026,XX
W000000,026,10
Remarks: to set power down mode when the tracker is inactive or stationary for a period of time.
In Power Down mode, GPS stops working and GSM enters sleep and stop sending out message until it is activated by message ,
incoming calls, movement or triggered by three buttons
XX=00, to turn off this function.
XX=01~99, to turn on Power Down after a specified period of being inactive (or stationary). It is in unit of minute.
In this example, the tracker will enter power down mode after it is inactive (or stationary) for 10 minutes.
Listen-in (Voice Monitoring)
W******,030,T
W000000,030,88888888
Remarks: T is the telephone number for wiretapping and max. 16 digits
Time Zone
W******,032,T
W000000,032,480 W000000,032,-120
Remarks: Default time of the tracker is GMT. You can use this comment to correct it to your local time. This command is for SMS
tracking only.
T=0, to turn off this function.
T=[-32768,32767] to set time difference in minute to GMT.
For those ahead of GMT, just input the time difference in minute directly. For example, GMT+8, W000000,032,480
‘-‘is required for those behind GMT. For example, W000000,032,-120.
Set SMS Header
W******,033,P,Char
W000000,033,1,help
