User's Manual

10
To determine whether GT-2000 is moving or not, user can select the sensitivity of the “acceleration sensor”.
It is distinguished by the tilt angle of the device. If the unit tilted more than the degree set here, GT-2000 will
be in moving mode. Otherwise, it will be in stop mode.
APPENDIX 1
GT2000 SPECIFICATIONS
Physical Parameters
Enclosure dimensions(mm) 94(L)*60(W)*28.5(H)
Weight 100g
Electrical
DC Supply voltage 3.6V
Recharge voltage
4.5V－20V
Current (GPRS online) 80mA
Current (GPRS transmission) 120mA
Current (Peak) 300mA
Current (Sleep) 6~12mA (when GPS is in sleep mode)
Battery
Battery type Battery capacity Charge type
Battery Lithium 3.6V 1600mAh Built-in charge circuit
GPRS*
Frequency Range (MHz) 900&1800 and 850&1900
models
Channel spacing (Hz) 200
GPRS connectivity GPRS multi-slot class 8
GPRS mobile station class B
SIM card interface 3V/5V
SMS storage Capacity 40 in ME
Antenna Impedance 50ohms
Antenna Type Embedded antenna
GPS*
Chipset SiRF starIII technology
Channels 20
Protocol NMEA0183
Baud Rate 4800
Signal L1 1575.42 MHz
Accuracy <5 meters (50%)
Velocity 0.1 m/sec.
Reacquisition 0.1 sec average
Snap Start 1 sec average
Hot Start: <8 sec.
Warm Start: <38 sec.
Cold Start: <42 sec.
Antenna Type Embedded Omni-directional antenna