Altina GBT708 User manual

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Version 1.01 2004 / 09 / 2 6

INDEX
1. OVERVIEW ........................................................................................................................... 3
2. PRODUCT FEATURE ....................................................................................................... 3
3. SPECIFICATION................................................................................................................. 4
3.1. BASIC SPECIFICATION..............................................................................................4
3.2. ACQUISITION TIME (AVERAGED)...........................................................................4
3.3. RECEIVER ACCURACY.............................................................................................4
3.4. USE LIMITATION.......................................................................................................4
3.5. POWER SUPPLY.........................................................................................................5
3.6. OUTPUT AND INTERFACE ........................................................................................5
3.7. PHYSICAL...................................................................................................................6
3.8. OTHER FUNCTIONS...................................................................................................6
4. HARDWARE ......................................................................................................................... 7
4.1. DIMENSION ................................................................................................................7
4.2. HARDWARE DESCRIPTION ......................................................................................8
4.3. LED STATUS..............................................................................................................8
4.4. POWER SWITCH.........................................................................................................9
4.5. OPTIONAL ACCESSORIES,AND CONNECTOR DESCRIPTION...............................9
4.6. EXTERNAL ACTIVE ANTENNA CONNECTOR......................................................10
4.7. POWER JACK &DATA PORT.................................................................................10
5. SOFTWARE ......................................................................................................................... 11
5.1. SOFTWARE INSTALLATION ...................................................................................11
6. WARRANTY........................................................................................................................ 12
7. HOW TO USE...................................................................................................................... 14
7.1. CHARGE BATTERY .................................................................................................14
7.2. TURN ON POWER ....................................................................................................14
8. TROUBLE SHOOTING ......................................................................................................... 15
Copyright is reserved by Altina
2i

1. OVERVIEW
Altina GBT708 Bluetooth wireless GPS Receiver is a total solution GPS receiver with
Bluetooth, UART interface and built-in rechargeable battery for high sensitivity to tracking
signal. GBT708 is a dual-function GPS receiver. Not only transmit satellite information
through the PDA or Notebook with Bluetooth interfaces but also G-Mouse GPS receiver
through a data cable.
GBT708 provide you various applications such as car navigation, mapping, surveying,
security, agriculture and so on. GBT708 communicates with other device through Bluetooth
wireless function and compatible interface of RS-232 or USB. Indeed, built-in
rechargeable Lithium-ion battery offer you a convenient use in drive and also can save
satellite information such as the status of satellite signal, the last location, date and time for
last use.
With low power consumption, the GBT708 can track up to 12 satellites at a time, and
re-acquires satellite signals in 100 ms and updates position data every second.
Trickle-Power allows the unit operates a fraction of the time and Push-to-Fix permits user to
have a quick position fix even though the receiver usually stays off.
2. PRODUCT FEATURE
¾Built in SiRF Star IIe/LP Low power consumption chipset
¾12 parallel satellite-tracking channels for fast acquisition and reacquisition
¾High speed signal acquisition using 1920 time/frequency search channels
¾Built-in WAAS/EGNOS Demodulator without any additional hardware
¾Compatible with Bluetooth Serial Port Profile (SPP) completely
¾Built-in rechargeable Lithium-ion battery without external power supply
¾Provide Continued mode and Power Saving mode for user’s requirement
¾Provide expand terminal contact to other system without Bluetooth device
¾Built-in rechargeable battery for memory and RTC backup and for fast Time To
First Fix (TTFF)
¾Support NMEA0183 v2.2 data protocol and SiRF binary code
¾4 colors LED to indicate the status of device
¾Extra active antenna connecting port for getting better satellites signal
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¾FLASH based program memory. New software revisions upgradeable through
serial interface。

¾Small, sleek, and lightweight design easily fits on your hand
¾Enhanced algorithms -SnapLock and SnapStart provide superior navigation,
performance in urban, canyon and foliage environments。
¾For Car navigation, Marine navigation, Fleet management, AVL, Personal
navigation, Tracking System, and Mapping device application。
3. SPECIFICATION
3.1. Basic Specification
¾Chipset：SiRF Star IIe/LP chipset.
¾Channels：12 parallel satellite-tracking channels.
¾Frequency：1575.42 MHZ.
¾Receiver：L1, C/A code.
3.2. Acquisition Time (averaged)
¾Reacquisition：0.1sec.
¾Snap start：< 3 seconds (at < 25 minutes off period)
¾Cold start：< 45 seconds.
¾Warm start：< 38 seconds .
¾Hot start：< 8 seconds
¾Update rate：1 second continuously
3.3. Receiver Accuracy
¾Normal：5-25 meters CEP without SA
¾Enable EGNOS or WAAS：
Position < 2.2 meters, horizontal 95% of time
Position < 5 meters, Vertical 95% of time
¾Velocity：within 0.1 meters / second
¾Time：1 microsecond synchronized GPS time
3.4. Use Limitation
¾Altitude：< 18,000 meters (60,000 feet)
¾Velocity：< 515 meters / second (700Knots)
¾Acceleration：4G
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¾Jerk：20 meters / second, max

3.5. Power Supply
¾External Voltage: 5VDC +/- 10%
¾Batteries：
Main Power: Built-in rechargeable Lithium-ion for system power
¾Backup Power: Rechargeable Lithium-ion battery for memory & RTC backup
¾Working voltage:
Normal Mode: 80-90mA
Power Saving Mode: 30mA
¾Working period (In Battery full power status):
Continued Mode: 9 hours
Power Saving Mode: 16 hours
【NOTE】GBT-708 has built Li-battery inside, please avoid closing high temperature
environment or sun shine directly for a long time.
3.6. Output and Interface
¾Output
I. Output protocol
Baud Rate：9600 bps
Data bit：8
Parity：No
Stop bit：1
II. Format -NMEA0183 V2.2：
GPGGA(1time/1 sec), GPGSA(1 time/1 sec.), GPGSV (1time /5 sec.), GPRMC
(1time /1 sec.), (GLL, VTG or SiRF binary format for optional).
III.Datum：WGS84
¾Input/ Output Interface
I. Compatible Bluetooth Serial Port Profile (SPP), Version1.1 and class 2(up
to 10 meter range).
II. In/Out Port. GPS signal (Out)/Command(In) with CMOS/TTL Level。
Mini USB Type B Connector and Cable option：
GAC60R2 (RS232 data cable)
GAC60U2 (USB data cable)
GAC60UP2 (Mini USB port to PS2 port ).
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¾External Antenna interface

3.0V input MCX type active antenna connector
3.7. Physical
¾Size：72 ×55 ×21 mm。
¾Weight：< 75 g 。
¾Operating Temperature：-10 to + 60
¾Storage Temperature：-20 to + 85
¾Operating humidity：5% to 95% No condensing。
3.8. Other Functions
¾Bluetooth frequency: 2.4 ~2.48GHZ
¾Bluetooth Input Sensitivity: -80dbm
¾Low sensitivity of receiving satellite signal：-175dBW
¾LED Functions：
Bluetoothh status
GPS status
Battery Status
Battery charging status
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4. HARDWARE
7
4.1. Dimension

4.2. Hardware Description
4.3. LED status
8
SYMBOL COLOR STATUS DESCRIPTION
3 times / 1 sec Search Bluetooth Device
1 time / 3 sec Standby Mode
Bluetooth Blue Blinking 1 time / 1 sec Transferring Data
Red Light on Power too low
Green Light on In charging
Battery N/A Light off Battery full or Not in charging
Light on Acquiring Satellites
GPS Orange Blinking Position Fixed
LED of Battery
(Red / Green)
External Antenna Port
Power Switch
LED of GPS
(Orange)
LED of Bluetooth
(Blue)
Power Jack & Data Port

4.4. Power Switch
¾1 : Power on
¾0 : Power off
4.5. Optional accessories, and connector description
9
PC/Notebook
USB port
PC/Notebook
RS232 port
USB Cable
(GAC60U2)
RS232 Cable
(GAC60R2)
Mini USB

4.6. External Active Antenna connector
¾Connector type: MCX, 180°
¾Active power voltage: 3.0V
¾Length: 5 meter
4.7. Power Jack & Data Port
¾Jack type: Mating face of 5 pin Mini USB Type B female
【Table 1】: Pin Definition
¾Pin definition please see 【Table 1】
Pin Pin Name Signal and description
1 GND Signal ground, Battery charging ground.
2 VOUT Unregulated voltage out: 3.6 V max 100mA.
3 TXD
Transmit Data.
From organizer to peripheral.(Voltage Level is 3.3V ~ 5.0V).
4 RXD
Receive Data.
Form peripheral to organizer.(Voltage level is 3.3V ~ 5.0V).
5 VCHARG Positive terminal of DC adaptor that powers the internal charging circuit of Li-Ion battery. The approved power supply is 5.0V +/- 5%@1A.
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