Sunsky V-520 User manual

Shenzhen SUNSKY Technology Limited
1
V-520 Mini GPS Tracker
(GPS+SMS+GPRS)
User’s Manual
V1.1

Shenzhen SUNSKY Technology Limited
1. Introduction
1.1 Welcome
Our main products are Bluetooth GPS, Bluetooth Module, GPS Module and personal tracker.
We have base-room of develop in Shenzhen. OEM and ODM are welcomed.
1.2 What’s in the box?
zV 520
zUSB charged cable
zCharger or car charger
zAccessory CD
About V520
2
GPS_LED GSM_LED CHARGE_LED on/off button SOS
1.3 About v 520

Shenzhen SUNSKY Technology Limited
3
V 520 mini Tracker is a remote positioning device with built-in GPS and GSM/GPRS
technology in the smallest size. It can transmit the longitude and latitude coordinates to your
cell phone by the SMS. By this, you can find its location on the Google maps© or other map
software. The tracker uploads positioning data through GPRS to a designated server. The
user can look for real-time location-tracking, historical trajectory through the Internet.
These features are for protecting and searching children and elders. Furthermore, it can be
used for other security purposes such as asset protection and animal tracking.
Key Features
yBuilt-in SKYTRAQ Chipset, excellent for fixing the position even at a weak signal status.
Work well even in areas with limited sky view like urban canyons.
yBuilt-in GSM/GPRS module, support GSM 900/1800 MHz (850/1900 Optional), working
all over the world.
ySupport SMS communication or GPRS TCP connection.
yGet the position information via mobile phone SMS, or examine the path on the Internet.
yThe available SMS takes the control command change tracing function or switch GPS.
ySupport establishes three telephone numbers. SOS button send out exact location for
immediate rescue/action.
yOne key for easily use.
yThe major technological index of the device is in conformity with the international standard
of GSM mobile phone.
yPortable, mini size, low power design and fashionable.
Applications
zUsed in important items outdoor
zMonitor and protect child, elder and disabled.
zBased on GSM network and INTERNET, this series of products provide personalized

Shenzhen SUNSKY Technology Limited
4
services for companies, organizations and individuals, users can search the positioning or
movement tracking information provided by this product in mobile phone or personal computer,
etc.
Specification
Hardware
GSM module
MTK program, GSM 900/1800/850/1900
dual-band or quad-band , Globally unique IMEI
number Product identification number
Support the TCP/IP protocol
GPS Chipset SKYTRAQ chipset, GPS Functional group
GPS Sensitivity -161dBm
GPS Frequency L1,1575.42MHz
C/A Code 1.023MHz chip rate
Channels 65 channel all-in-view tracking
Position Accuracy 2.5 meters, CEP
Velocity Accuracy 0.1 m/s
Time Accuracy 1 us synchronized to GPS time
Datum WGS-84
Reacquisition 0.1 sec.,average
Hot start 1 sec.,average
Warm start 30sec.,average
Cold start 35sec.,average
Altitude Limit 18,000 meters (60,000feet) max.
Velocity Limit 515 meters/second (1000knots) max.
Acceleration Limit Less than 4g
Operating temperature -25℃to 70℃
Humidity 5% to 95% Non-condensing

Shenzhen SUNSKY Technology Limited
Dimension 50mm*44mm*16mm
Voltage >500 mAh Rechargeable battery(3.7V)
Charging connector DC 5V
2. Getting started
2.1Hardware description
Blue LED--- indicate the GSM signal state
State Means
constant Lighting no SIM card or not GSM net
Slow flash every 8 seconds GSM receiver work well and standby
Red LED---indicate charge sate
State Means
constant Lighting charging
Weak lighting charging was completed
Green LED--- indicate the GPS signal state
State Means
constant Lighting Working, but no location
Slow Flashing Working and has located
Button Function Description:
5

Shenzhen SUNSKY Technology Limited
6
button Means
Power key Turn on/off the product by press it 3-5s;
End the calls by press one time
SOS If time of pressing SOS button bigger
than 3 seconds, it will send location
information to one of the three
re-stored telephone numbers, And it
will dial the first telephone which saved
in advance, if there is no answer it will
call the second number, and analogy.
2.2Charge battery
Before using V 520, to lengthen the battery service life, suggest in closes down under the
condition to charge completely at least for 12 hours.
Note: The DC port can only make the charge use. Please do not meet other equipment. If
connects the initiation question arbitrarily, is generally irresponsible.
2.3 Buy A SIM card
Buy a SIM card from local service provider.
Please make sure that your SIM card support SMS function and have enough deposit.
2.4 switch on / switch off
Switch on:
When the device is on, press the button to off side and wait for 3 seconds. The green LED and
blue LED are light.
When the device is off, press the power button to on side and wait for about 20 seconds. It will
enter standby mode.
It is suggested that you stay an outer place where it can receive the better GPS signal when

Shenzhen SUNSKY Technology Limited
7
you turn on the device.
Switch off:
When the device is on, press the button to off side and wait for 3 seconds. When the LED
goes out, it indicates that the device is turning off for sure.
Tips: How to get better GPS signal:
1、working outdoor, v 520 can get better GPS signal;
2、the front side of v 520 should be placed .
Reset: Under the shutdown state, press the SOS button and the power key, keep the two
keys being held down to 6s，then release again.
If success, its state is as below:
Configuration State
Working Mode Unchanged
Pre-set phone numbers None
User passwords 0000
GPS Open
Send regularly location information Off
Service password in GPRS 0000
Use’s name in GPRS V300Q
APN CMNET
IP address 0.0.0.0 0000
GPRS data upload close
3. How to…
3.1The operation based on the SMS application

Shenzhen SUNSKY Technology Limited
8
3.1.1 Set up the user password instruction
Format: 777+new password (4 figures) +old password (4 figures)
eg: 77712340000
Explanation: Confirm the user password correctly; changes the new user password to the old
password. After set successfully, it will send the confirmation messages (SET USER
PASSWORD OK) to the sender.
Note: The user password can only be 4 figures. The default setting for 0000
3.1.2 Change the stored telephone number instructions
Format: *new numbers with 4-20 figures * user password (4 figures) *location number (1-3) **
eg: *13588889999*0000*1**
Explanation: You can store 3 telephone numbers at most in advance。When v 520 tracker
receives the instruction and confirms the user password correctly, substitutes the new number
for the existing number. After success, it will send the confirmation messages (SET USER
NUMBER (1-3) OK) to the sender.
Note: The factory set or reset the number stored post is empty. This command mode is not
affected by machine switch until the receipt of further changes or reset operation to the
relevant directives.
3.1.3 Change mode instruction
Format：700+ user password (4 figures)
eg: 7000000
Explanation：When v 520 tracker receives the SMS and confirms the user password correctly,
it switches to the SMS application mode. After the success, it will send the confirmation
messages (SET MODE OK, CURRENT MODE: SMS P2P) to the sender.
3.1.4 Set GPS mode
Sending SMS commands command can make GPS works in normally open / NC / saving

Shenzhen SUNSKY Technology Limited
9
three models. GPS is in normal open state in factory set or reset.
1. Open the GPS instruction
Format: 222 + user's password 4
For example: 2220000
Description: When V520 received the order and confirmed the user password is correct, it will
open the GPS power, after the success it will send confirmation message "GPS ON OK”.
2．GPS normally closed mode
Format: 333 + user's password 4
For example: 3330000
Description: When V520 received the order and confirmed the user password is correct, then
turn off the GPS, after the success, it will send confirmation message "GPS OFF OK".
3. GPS power-saving mode
1) Command to set GPS power parameter: 199 + user password + S xxx + L yy + H zz
example: 1990000S030L01H03
Description: S030, means to close GPS for 30 minutes, you can set (1 ~ 255). L01 said that
the first phase of GPS Open is about 1 minute, you can set (1 ~ 98), if the first stage located, it
will turn off GPS and does not enter the second phase; if the first stage there is no location,
then enter the second phase, H03 indicated the total turn-GPS time, which means the second
phase is 2 minutes (ie Hzz - Lyy). H can be set (3 ~ 99). When S is set as 0, then it out of
power-saving mode automatically and switches to the GPS always open model, that is
command 188 will not work. When the V520 received the order and confirmed the user
password was correct, it will configure the S / L / H items according to user-defined
parameters , after the success , then send confirmation: GPS AUTO MODE: (yy-zz) / xxx
Minutes.
Note:
1. Set S / L / H and other parameters, if the peak is 0, then we must write 0..
For example: To turn off GPS 30 minutes is necessary to set the S030, but not the S30.
2, HZZ is the total time set to open GPS can not be less than Lyy.

Shenzhen SUNSKY Technology Limited
10
3, parameters set by 199 for restart will not be lost, reset will not change until the reset.
4, only in the power-saving mode, the V520 can be set timer switch GPS in accordance with
199, the other two modes will not.
2) Command to set the power-saving mode: 188 + user password
For example: 188 0000
Description: after the success of setting 199 orders, to send 188 commands has take effect.
V520 received 188 orders and confirmed the password is correct, it switch to power-saving
mode, reply to the sender to confirm the information: GPS AUTO MODE ON OK. In the GPS
power-saving mode r, V520 would be instruction in accordance with 199 timer switches the
parameters set by GPS to achieve energy-saving purposes.
For example: setting 1990000S030L01H03, and send 188 to enter power-saving mode, in
accordance with Directive 199, V520 will turn off GPS 30 (S030) minutes first, and then open
the 1 minute (L01), if the GPS located in the open 1 minute (L01) , it will turn off off GPS
directly for 30 minutes (S030). If there is no position in 1 minute, it will continue to open the
GPS for 2 minutes (H03 - L01). Regardless of whether GPS position after 2 minutes, it will be
closed again for 30 minutes, again and again.
Note: 1, switch GPS work as power-saving mode, they must first set the 199 command
parameter.
2, open the power-saving mode, in the GPS closed phase, GPRS timing upload and historical
data sampling will all stop; in the beginning phase of GPS positioning, GPRS regularly
uploading and historical data sampling will be back to normal.
3, open the power-saving mode, in the GPS off phase, regardless of in SMS mode or
GPRS mode, if there is a request for location information and other operations, such as 666, #
806, phone positioning, SOS, and out of fence, and so on, the GPS will be immediately open to
read the latest GPS data, until the next power cycle, and then turn off GPS.
4, if you need real-time tracking, please use GPS often open mode.

Shenzhen SUNSKY Technology Limited
11
3.1.5 Single localization request instruction
Format: 666+ user password (4 figures)
eg: 6660000
Explanation: When v 520 tracker receives the instruction and confirms the user password
correctly, reads the GPS information. No matter whether effective, the information with the
replying base station which is the set of the original software will be sent to the sender.
Data format:
Lat: Latitude Direction (+/-) Latitude Value (Accuracy for 5 after the decimal point)
Long: Longitude Direction (+/-) Longitude Value (Accuracy for 5 after the decimal point)
Speed: Speed KM/H (Accuracy for 2 after the decimal point)
Direction: Direction (Accuracy for 2 after the decimal point)
Date: Date YYYY-MM-DD
Time: Time HH：MM：SS (GMT)
BS: Base Station information
Fix: Location state (A/V)
ID: IMEI
STATE: Message state
Effective data format:
Lat: +22.50500
Long: +114.01000
Speed: 0.00KM/H
Direction: 315.00
Date: 2008-04-25
Time: 16:39:45
BS: 25ee0dff
Fix: A
ID: 353686009002030
STATE: SMS

Shenzhen SUNSKY Technology Limited
12
Invalid data format:
Lat: +22.50500
Long: +114.01000
Speed: 0.00KM/H
Direction: 315.00
Date: 2008-04-25
Time: 16:39:45
BS: 25ee0dff
Fix: V
ID: 353686009002030
STATE: SMS
If in the cold start and GPS no position, it will return to the void of information: “ERROR GPS
GPRMC FRAME DATA BS: 27971054”.
3.1.6 Send the positional information in fixed time instruction
Format: 4 xx + user password (4 figures)
eg: 4010000
Explanation: x indicates one figure from 0 to 9, while “xx <60”, its unit is minute. while “xx >60”,
its numerical value is “xx minus 60” and unit is hour, in other words, 61 is 1 hour, 62 is 2 hours,
followed by analogy. When v 520 tracker receives the instruction and confirms the user
password correctly, it establishes the current time for initial timing time, xx is the gap time, and
sends the confirmation SMS to the sender’s mobile phone (TIMER START, REPEAT
INTERVAL :< X>MINUTES). Then start to time and send the format as 3.1.5 setting
information when it arrives the gap time, the information state item automatically updates
STATE: TIMER. When “xx=00”, cancels the positional information in fixed time instruction, and
sends the confirmation SMS to the sender’s mobile phone “TIMER STOP”.
Note: The state set by this directive in the next boot after the shutdown is still valid，once again
received the directive could be changed again changes, reset configuration reset. After factory

Shenzhen SUNSKY Technology Limited
13
set or reset, timing upload is stop.
3.1.7 Telephone localization function
Explanation: One of 3 telephone numbers stored in advance calls in, and hangs up after
ringing 2-5 times, then the v 520 will send the location information in form of 3.1.5 to this
number, the information state item automatically updates STATE: CALL.
3.1.8 Monitor function
Explanation: One of 3 telephone numbers stored in advance calls in, it will enter into monitor
state when rings 6 times, also can press SOS to enter into monitor state or press POWER
button to end the call. then the v 520 will send the location information in form of 3.1.5 to this
number, the information state item automatically updates STATE: CALL. It will hang up directly
if the calling number is not the stored numbers.
3.1.9 Seeking help initiatively
When press the key more than 3 seconds, it will make vibration and send the location
information such as 3.1.5 to 3 telephone numbers stored in advance, the information state item
automatically updates STATE: SOS. At the same time, call the first user telephone number. If it
is unsuccessful (closed or unable to connect or no response), makes vibration and starts
calling the second and the third in turn.
3.1.10 Electronic fence function
Electronic fence takes the set coordinates as the center, the set radius parameters to
determine the scope of the fence. When open this feature, once the V520 beyond the scope of
the set fence, it will send location information as to 3.1.5 to the 3 preset numbers. The
information state item automatically updates STATE: OS. When the V520 re-enters the fenced
area, it will immediately send location information format 3.1.5 to the three preset numbers.
The information state item prompts STATE: RS..

Shenzhen SUNSKY Technology Limited
14
1. Set the scope of the fence
According to the input formats different of coordinates, user can choose the format as follows
instructions to operate.
Format1：003+ user password E/Wdddmm.mmmmN/Sdd.mmmmRzzz.z
eg: 003xxxxE11406.0024N2233.4230R1
Explanation: E-- east longitude; W-- west longitude; N-- north latitude; S-- south latitude. In this
example, uses E and N, please according to the actual geographical position choose
corresponding coordinate form to set. In the demonstration, meanings of various parts are as
follows:
Edddmm.mmmm is longitude information with units of degrees and minutes, and the ddd
expresses degree, mm.mmmm expresses minute (Accuracy for 4 after the decimal point, the
following zero cannot bypass)
Ndd.mmmm is latitude information with units of degrees and minutes and the dd expresses
degree, mm.mmmm expresses minute (Accuracy for 4 after the decimal point, the following
zero cannot bypass)
Rzzz.z is radius for the domain (999.9 - 0.1), unit for KM.
When the tracker receives this instruction, judges to be authorized users and confirms the user
password correctly, it will send the confirmation messages “SET GEO-FENCE OK” to the
sender.
Format 2：004+ user password E/Wddd.dddddN/Sdd.dddddRzzz.z
eg：0040000E114.10004N22.55705R999.9
Explanation: E-- east longitude; W-- west longitude; N-- north latitude; S-- south latitude. In
this example, uses E and N, please according to the actual geographical position choose
corresponding coordinate form to set. In the demonstration, meanings of various parts are as
follows:
Eddd.ddddd is longitude information with units of degrees, and the ddd.ddddd expresses
degree (Accuracy for 5 after the decimal point, the following zero cannot bypass)
Ndd.ddddd is latitude information with units of degrees, and the ddd.ddddd expresses degree

Shenzhen SUNSKY Technology Limited
15
(Accuracy for 5 after the decimal point, the following zero cannot bypass)
Rzzz.z is radius for the domain (999.9 - 0.1), unit for KM.
When the tracker receives this instruction, judges to be authorized users and confirms the user
password correctly, it will send the confirmation messages “SET GEO-FENCE OK” to the
sender.
Format 3：005+ user password Rzzz.z
Explanation: When the tracker receives this instruction, judges to be authorized users and
confirms the user password correctly, it will send the confirmation messages “SET
GEO-FENCE OK” to the sender. If the GPS data is invalid, it will receive the next one, if it can’t
get valid data, it will re-back the message: ERROR GPS DATA, TRY AGAIN LATER. Then
Restored to its original state (on/off/adaptive).
Note: 1. Radius of the fence can not exceed the definition of its domain; the value of the
decimal part for zero must input zero fill. For example: R=1, it is important to enter into 1.0.
2. If the calling state is off, it will not call the user telephone number, and only send
messages to the present number.
3. Degree and minute is divided into sexagesimal system converter, that is, 1d = 60m
2) open the electronic fence: 211 + user password
After set successfully, it will send the confirmation messages “GEO-FENCE ON” to the sender.
3) close the electronic fence: 210 + user password
After set successfully, it will send the confirmation messages “GEO-FENCE OFF” to the
sender.
3.1.11 historical data upload feature
it need to switch to GPRS mode to set IP, APN and so on in SMS mode, specific instructions
and upload format may see the 3.2 based on GPRS operation.
1, historical data records set instruction
Format: # 807 # Password # X # #
Example: # 807 # 0000 # 30 # #
Note: X is a historical record of the sampling frequency, an integer number, the definition of

Shenzhen SUNSKY Technology Limited
16
domain 【0,999】, the unit is seconds. When the V520 receives the instruction to confirm the
user password is correct, set the historical record of the sampling frequency of X. If X = 0, then
close the historical data records, if X≠0, then began to store GPS data as the X seconds time
interval, after the success of return to the sender to confirm the information "SET SAMPLING
OK".
Note: 1, record the data about the size of each 100B (BYTE).
2, used as a record of historical data storage space allocated size is 864KB (BYTE), data
storage stack covered with an updated approach. Suppose X = 30, it can record about 3 days
of data, if X = 300, it can record approximately 30 days of data. When the data is full 864KB,
the new data received to automatically overwrite the earliest recorded data.
3, if open the power-saving feature, and V520 will keep a long time in a stationary state, then
history will automatically shut down until the V520 has been awakened and opened the GPS.
2, historical data upload instructions
A, From a 24-hour history: I
Format: # 808 # user's password # 24 # #
For example: # 808 # 0000 # 24 # #
Note: When the V520 user password to confirm receipt of the directive is correct, return to
sender confirmation message: "START UPLOAD 24H HISTORY RECORD". At the same time
began to send the last 24 hours of historical data to server, format and GPRS mode, the same
as 3.2.10 as shown in the information in the state prompted the STORAGE.
B, Read all the data records:
Format: # 808 # 0000 # #
Description: When the V520 receives the instruction to confirm the user password is correct,
return to sender confirmation message: "START UPLOAD ALL HISTORY RECORD". At the
same time sent historical data to sever, as shown in formats such as 3.2.10. Prompted the
state information is STORAGE.
3.1.12 Low voltage warning

Shenzhen SUNSKY Technology Limited
When the v 520’s working voltage is lower than the set, to read the GPS information, whether
or not effective, immediately send the format as 3.1.5 location information to the three stored
numbers, the information state item automatically updates STATE: LP. Send a total of three
times, each time one minute interval.
3.1. 13 Display the location on map
1) Download Google earth software from http://earth.google.com
2) Start the Google earth software. (For more information about Google earth software,
please refer tohttp://earth.google.com)
As following picture shows:
(Note: pay attention to change the position date format)
Or you can start the internet explorer and copy http://maps.google.com to connect to Google
map website for displaying the location map.
3）You can get the latitude & longitude date by sending “666+password” SMS command code
to the GPS tracker v 520. Input the latitude and longitude that you receive from SMS and click
17

Shenzhen SUNSKY Technology Limited
on search button, the Google earth will display the location map for you.
eg：You receive the information from the tracker. As follows:
Lat: +22.50500
Long: +114.01000
Speed: 0.00KM/H
Direction: 315.00
Date: 2008-04-25
Time: 16:39:45
BS: 25ee0dff
Fix: A
ID: 353686009002030
STATE: SMS
Search the position on the Google map, in relevant position input：
+22.50500 +114.01000
Obtain the following picture:
18

Shenzhen SUNSKY Technology Limited
Or you can use local map software on PDA or car navigation device, input the position date.
(Note: pay attention to change the position date format)
3.2The operation based on the GPRS application
3.2.1 Change the user password instruction
Format: 777+new password (4 figures) +old password (4 figures)
eg: 77712340000
Explanation: Confirm the user old password correctly; changes the new user password to the
old password. After set successfully, it will send the confirmation messages (SET USER
PASSWORD OK) to the sender.
Note: The user password is 0000 after factory set or reset.
3.2.2 Set the stored phone numbers instruction
Format: *new number4-20 bytes*password 4 bytes *No.(1-3)**
Explanation: Confirm the user password correctly; changes the new user’s number to instead
the old. After set successfully, it will send the confirmation messages (SET USER NUMBER
19

Shenzhen SUNSKY Technology Limited
20
OK) to the sender.
Note: the quantity of setting number is not more than 3, it is empty under reset or factory set,
this instruction will be valid when open it next time until re-change or reset.
3.2.3 Change the mode
Format：710+ user password (4 figures)
eg：7100000
Explanation: When v 520 tracker receives the SMS and confirms the user password correctly,
it switches to the GPRS application mode. After the success, it will send the confirmation
messages (SET MODE OK，CURRENT MODE：GPRS) to the sender.
3.2.4 Open the GPS instruction
1. Open the GPS instruction
Format: 222 + user's password 4
For example: 2220000
Description: When V520 received the order and confirmed the user password is correct, it will
open the GPS power, after the success it will send confirmation message "GPS ON OK”.
2．GPS normally closed mode
Format: 333 + user's password 4
For example: 3330000
Description: When V520 received the order and confirmed the user password is correct, then
turn off the GPS, after the success, it will send confirmation message "GPS OFF OK".
3. GPS power-saving mode
1) Command to set GPS power parameter: 199 + user password + S xxx + L yy + H zz
example: 1990000S030L01H03
Description: S030, means to close GPS for 30 minutes, you can set (1 ~ 255). L01 said that
the first phase of GPS Open is about 1 minute, you can set (1 ~ 98), if the first stage located, it
will turn off GPS and does not enter the second phase; if the first stage there is no location,