4
3.
GT89 Characteristics
Items
Specification
Charging Voltage
DC 4.2-5.5V/400mA (Mini USB port)
Battery
Rechargeable and replaceable 1000 mAh battery
(3.7V),
Dimension
86mm X 44mm X 22mm
Weight
65g (with battery)
Operating
Temperature
-20
°
C to 55
°
C
Humidity
5% to 95% Non-condensing
GSM Module
Quad Band GSM 850/900/1800/1900MHz
GPS Chipset
Latest GPS SIRF-Star III chipset
GPS Sensitivity
-159 dB
GPS Frequency
L1 1575.42MHz
C/A Code
1.023 MHz chip rate
Channels
20 channel all-in-view tracking
Position Accuracy
< 15 M 2D RMS
Velocity Accuracy
0.1 M/S
Time Accuracy
1 us synchronized to GPS time
Reacquisition
0.1 ms
Hot Start
1 sec., average
Warm Start
35 sec., average
Cold Start
37 sec., average
Altitude Limit
18,000 meters (60,000 feet) max.
Velocity Limit
514 meters/second (1000 knots) max.
Acceleration Limit
Less than 4g
Work Time
12 hours in normal mode and 50 hours in
power-saving mode
Memory
32M-BIT flash memory
LED
3 LED lights to show power, GPS, GSM and other
status.
Switch off when
refueling
Do not use GT89 when at a refueling point. Do not
use near fuels or chemicals.
Switch off near
blasting
Follow any restrictions. Do not use GT89 when
blasting is in progress.
Qualified service
Only qualified personnel can repair GT89.
Water resistance
GT89 is not fully water resistant. Keep it dry. Use
waterproof-case if necessary.