Bluetooth GPS Receiver
BT-721
Technical Manual
Bluetooth GPS Receiver Series
Model: BT-5721 / 5722
UniTraQ International Corp. All right reserved, © 2008
9F-2, NO. 158, Sec. 2,Gongdao 5th Rd., Hsinchu City 30070,Taiwan, R.O.C
MADE IN TAIWAN
UniTraQ International Corp.
RoHS compliance
2009, 02 Version 1.1
Bluetooth GPS Receiver
BT-5721/5722
Contents
1. Introduction………………………………………………………………………………………………………….2
2. Features………………………………………………………………………………………………………………2
3. Specifications……………………………………………………………………………………………………….3
3.1 GPS Specifications…………………………………………………………………………………………...3
3.2 Bluetooth Specifications………………………………………………………………………………….…3
3.3 Power Specifications…………………………………………………………………………………….…..4
3.4 Output and Interface Specifications………………………………………………………………………4
3.4.1 Output protocol…………………………………………………………………………………………..4
3.4.2 Output format…………………………………………………………………………………….……….4
3.4.3 Data communication interface………………………………………………………………….……..4
3.4.4 External antenna connector…………………………………………………………………….……..4
3.5 Physical Specifications......................................................................................................................4
3.6 Other Specifications………………………………………… ……………………………………………….4
4. Accessories……………………………………………………………………………………………………...….5
4.1 Standard Accessories………………………………………………………………………………….…….5
4.2 Optional Accessory.………………………………………………………………………………………….5
5. Operations……………………………………………………………………………………………………….…..5
5.1 Hardware Descriptions……………………………………………………………………………………....5
5.2 Charging Battery………………………………………………………………………………………………6
UniTraQ International Corp. RoHS compliance
2009, 02 Version 1.1
Bluetooth GPS Receiver
BT-5721/5722
1
Notice
Thank you for purchasing the high-performed BT-5 Bluetooth GPS Receiver. To manipulate the
Bluetooth Receiver and GPS Software, please take the time to read through this user
manual to understand the operating features.
Warning: If you choose to use the BT-5 Bluetooth GPS Receiver in a vehicle, it is the sole
responsibility of the owner/operator of the BT-5 Bluetooth GPS Receiver to secure the GPS unit so
that it will not cause damage or personal injury in the event of an accident. Do not mount the BT-5
Bluetooth GPS Receiver over airbag panels or in a place where the driver or passenger are likely to
have an impact with it in an accident or collision.
Warning: If you choose to use the BT-5 Bluetooth GPS Receiver in a vehicle, it is the sole
responsibility of the operator of the vehicle to operate the vehicle in a safe manner, maintain full
surveillance of all driving conditions at all times, and never become distracted by the BT-5
Bluetooth GPS Receiver to the exclusion of safe operating practices. It is unsafe to operate the BT-5
Bluetooth GPS Receiver while you are driving. Failure by the operator of a vehicle equipped with
the BT-5 Bluetooth GPS Receiver to pay full attention to operating the vehicle and road conditions
while the vehicle is in motion could result in an accident or collusion with property damage and
personal injury.
Caution: It is the users’ responsibility to use this product prudently. This product is intended to be
used only as a travel aid and must not be used for any purpose requiring precise measurement of
direction, distance, location, or topography.
Caution: The Global Positioning System (GPS) is operated by the government of United State,
which is solely responsible for its accuracy and maintenance. The system i s su bject to changes
which could affect the accuracy and performance of all GPS equipment. Although the BT-5
Bluetooth GPS Receiver is a precision electronic NAVigation AID (NAVAID), any NAVAID can be
misused or misinterpreted and, therefore, become unsafe.
UniTraQ International Corp. RoHS compliance
2009, 02 Version 1.1
Bluetooth GPS Receiver
BT-5721/5722
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1. Introduction
BT-5 Bluetooth GPS Receiver is a mobile GPS receiver combined an advanced GPS receiver, a
mini antenna and Bluetooth wireless technology together. It is the perfect solution for you seeking a
compact and wireless GPS receiver that consumes low power and has a long ba ttery life with high
gain.
The BT-5721/5722 Bluetooth GPS Receiver is a total solution GPS receiver with Bluetooth, USB Interface
and built-in rechargeable battery for time to first fix. BT-5721/5722 design is based external Bluetooth chipset
and UniTraq’s GPS module with low power consumption.
This positioning application meets strict needs such as car navigation, mapping, surveying, security,
agriculture and so on. Only clear view of sky and certain power supply are necessary to the unit,
BT-5721/5722 contacts to other device via Bluetooth or USB device(BT-5722 only), and built-in recharge
battery to keep almanacs and ephemeras data.
With low power consumption, the BT-5721/5722 tracks up to 65 satellites at a time, re-acquires satellite
signals less than 1s and updates position data every second.
2. Features
Compatible with Bluetooth serial port profile (SPP) completely.◆
◆ Support USB interface make BT-5722 just like USB-mouse when user are using PC charging.
◆ 65 parallel satellite-tracking channels for fast acquisition and reacquisition.
Support NMEA◆ 0183 V3.01 data protocol.
Built◆ -in 1000mAh Lithium-polymer battery inside makes BT-5721/5722 continue work to 8hr.
Built◆ -in rechargeable battery for supply power to internal SRAM keeping almanac and ephemeris
for time to first fix(TTFF).
Four LED◆ with four different colors which show the devices status.
◆ Provide MMCX connector for connecting active antenna to get better satellites signal reception.
Built◆ -in ceramic patch antenna inside.
UniTraQ International Corp. RoHS compliance
2009, 02 Version 1.1
Bluetooth GPS Receiver
BT-5721/5722
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3. Specifications
3.1 GPS Specifications
Parameter Specification
Receiver Type 65 channels
Re-acquisition sensitivity -155dBm
Tracking sensitivity -158dBm
Cold start sensitivity -137dBm
Receiver frequency 1575.42MHz
Code C/A code
Accuracy
Position
Velocity
5m CEP
0.1m/sec
Startup Time
hot start
cold start
< 1 sec
< 35 sec
Signal Reacquisition <1s
Update Rate 1Hz
Operational Limits
(1) Altitude
(2) velocity
< 18,000m
< 500m/s
Dynamics 4G (39.2m/sec2)
Datum WGS-84
Protocol NMEA-0183 V3.01
3.2 Bluetooth Specifications
Frequency range: 2.40~2.48GHz
Bluetooth Version: 2.0
Class: 2 (10m)
Sensitivity: -80dBm
Support Profile: serial port profile (SPP)
Stack: (4279) cyt_8unified_fl_bt2.0_22_0702091828_encr56 2007-02-09
UniTraQ International Corp. RoHS compliance
2009, 02 Version 1.1
Bluetooth GPS Receiver
BT-5721/5722
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3.3 Power Specifications
External Power: 5VDC/1A
Battery: 1000mAh Lithium-polymer battery for system
3.4 Output and Interface Specifications
3.4.1 Output protocol
Baud rate: 4800bps
Data bit: 8
Parity: none
Stop bit: 1
3.4.2 Output format
NMEA 0183 V:3.01
GPGGA/ GPGSA/GPGSV/GPRMC (1/Sec)
3.4.3 Data communication interface
Bluetooth 2.0 with SPP profile
USB interface (for BT-5722 only)
3.4.4 External antenna connector
MMCX type/3.3V output
3.5 Physical Specifications
Size:80×60×10 mm
Weight: 154g
Operation temperature: -20℃~+60℃
Storage temperature: -40℃~+80℃
Operation humidity: 5% to 95% no condensing
3.6 Other Specifications
LED indicators Bluetooth/GPS/Low battery and charging status.
UniTraQ International Corp. RoHS compliance
2009, 02 Version 1.1
Bluetooth GPS Receiver
BT-5721/5722
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4. Accessories:
4.1 Standard Accessories
1. GPSView Software & User Manual CD
2. Anti Slip Car Pad
4.2 Optional Accessories:
1. Travel Charger
2. USB cable
3. Car Charger
5. Operations:
5.1 Hardware Descriptions:
1.Built-in Antenna
2.LED Lights
Red light: power on
Blue light: Being receiving Bluetooth signal
Green light 1: Being charging battery; Green light 2 (flashing) : Low battery
3.The Power Button
Turns the unit on and off
UniTraQ International Corp. RoHS compliance
2009, 02 Version 1.1
Bluetooth GPS Receiver
BT-5721/5722
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5.2 Charging Battery:
You can use car charger to connect BT-5 Bluetooth GPS Receiver with battery of car, or use travel
charger to connect with an outlet. When battery is been charging, the green LED on the GP S
receiver lights continuously
UniTraQ International Corp. RoHS compliance
2009, 02 Version 1.1
Bluetooth GPS Receiver
BT-5721/5722
7
UniTraQ International Corp
9F-2, No.158,Gongdao 5th Rd.,Sec. 2 Hsinchu City 300, Taiwan, R.O.C.
TEL：886-3-5710727 FAX：886-3-5751365
Email support@unitraq.com
Website www.unitraq.com
© 2008 UniTraQ International Corp. All rights reserved.
Not to be reproduced in whole or part for any purpose without w ritten permission of UniTraQ International Corp (“UniTraQ”)
Information provided by UniTraQ is believed to be accurate and reliable. These materials are provided by UniTraQ as a
service to its customers and may be used for informational purposes only. UniTraQ assumes no responsibility for errors or
omissions in these materials, nor for its use. UniTraQ reserves the right to change specification at any time without notice.
These materials are provides “as is” without warranty of any kind, either expressed or implied, relating to sale and/or use of
UniTraQ products including liability or warranties relating to fitness for a particular purp ose, consequential or incidental
damages, merchantability, or infringement of any patent, copyright or other intellectual property right. UniTraQ further does
not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials.
UniTraQ shall not be liable for any special, indirect, incidental, or consequential damages, including without limitation, lost
revenues or lost profits, which may result from the use of these materials.
UniTraQ products are not intended for use in medical, life-support devices, or applications involving potential risk of death,
personal injury, or severe property damage in case of failure of the product.
All of products designed and produced in Taiwan, and RoHS compliance
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